./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-37.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX --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 90de0053d184a453dc3a33f57409c1c246f48963f5fd9431c484b6f29206cf7b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:50:32,484 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:50:32,577 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:50:32,582 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:50:32,583 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:50:32,608 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:50:32,609 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:50:32,609 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:50:32,610 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:50:32,611 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:50:32,611 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:50:32,612 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:50:32,612 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:50:32,613 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:50:32,613 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:50:32,614 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:50:32,614 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:50:32,615 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:50:32,615 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:50:32,616 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:50:32,616 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:50:32,620 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:50:32,620 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:50:32,621 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:50:32,621 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:50:32,621 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:50:32,622 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:50:32,622 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:50:32,622 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:50:32,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:50:32,623 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:50:32,623 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:50:32,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:50:32,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:50:32,628 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:50:32,629 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:50:32,629 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:50:32,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:50:32,629 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:50:32,630 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:50:32,630 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:50:32,631 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:50:32,631 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_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90de0053d184a453dc3a33f57409c1c246f48963f5fd9431c484b6f29206cf7b [2024-11-08 18:50:32,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:50:33,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:50:33,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:50:33,030 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:50:33,031 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:50:33,032 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-37.i Unable to find full path for "g++" [2024-11-08 18:50:35,035 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:50:35,272 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:50:35,273 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-37.i [2024-11-08 18:50:35,286 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/data/99b19c62c/32742ca184a6485db97a7ed85deca665/FLAG093959301 [2024-11-08 18:50:35,640 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/data/99b19c62c/32742ca184a6485db97a7ed85deca665 [2024-11-08 18:50:35,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:50:35,645 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:50:35,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:50:35,646 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:50:35,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:50:35,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:50:35" (1/1) ... [2024-11-08 18:50:35,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@576b5cf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:50:35, skipping insertion in model container [2024-11-08 18:50:35,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:50:35" (1/1) ... [2024-11-08 18:50:35,687 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:50:35,861 WARN L250 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_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-37.i[916,929] [2024-11-08 18:50:35,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:50:35,940 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:50:35,951 WARN L250 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_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-37.i[916,929] [2024-11-08 18:50:35,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:50:36,029 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:50:36,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:50:36 WrapperNode [2024-11-08 18:50:36,031 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:50:36,032 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:50:36,033 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:50:36,033 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:50:36,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:50:36" (1/1) ... [2024-11-08 18:50:36,060 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:50:36" (1/1) ... [2024-11-08 18:50:36,123 INFO L138 Inliner]: procedures = 29, calls = 157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 477 [2024-11-08 18:50:36,126 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:50:36,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:50:36,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:50:36,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:50:36,143 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:50:36" (1/1) ... [2024-11-08 18:50:36,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:50:36" (1/1) ... [2024-11-08 18:50:36,149 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:50:36" (1/1) ... [2024-11-08 18:50:36,193 INFO L175 MemorySlicer]: Split 124 memory accesses to 8 slices as follows [2, 8, 52, 20, 7, 15, 6, 14]. 42 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 1, 5, 2, 1, 2, 1, 2]. The 17 writes are split as follows [0, 1, 7, 2, 1, 3, 1, 2]. [2024-11-08 18:50:36,197 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:50:36" (1/1) ... [2024-11-08 18:50:36,197 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:50:36" (1/1) ... [2024-11-08 18:50:36,236 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:50:36" (1/1) ... [2024-11-08 18:50:36,244 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:50:36" (1/1) ... [2024-11-08 18:50:36,251 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:50:36" (1/1) ... [2024-11-08 18:50:36,258 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:50:36" (1/1) ... [2024-11-08 18:50:36,271 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:50:36,272 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:50:36,275 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:50:36,276 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:50:36,277 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:50:36" (1/1) ... [2024-11-08 18:50:36,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:50:36,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:50:36,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:50:36,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:50:36,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:50:36,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-08 18:50:36,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-08 18:50:36,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-08 18:50:36,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-08 18:50:36,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-08 18:50:36,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-08 18:50:36,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-08 18:50:36,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-08 18:50:36,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:50:36,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:50:36,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 18:50:36,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 18:50:36,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 18:50:36,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 18:50:36,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-08 18:50:36,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-08 18:50:36,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-08 18:50:36,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-08 18:50:36,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-08 18:50:36,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-08 18:50:36,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-08 18:50:36,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-08 18:50:36,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-08 18:50:36,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-08 18:50:36,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:50:36,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:50:36,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 18:50:36,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 18:50:36,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 18:50:36,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 18:50:36,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-08 18:50:36,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-08 18:50:36,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-08 18:50:36,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-08 18:50:36,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-08 18:50:36,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-08 18:50:36,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-08 18:50:36,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-08 18:50:36,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-08 18:50:36,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-11-08 18:50:36,359 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 18:50:36,359 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 18:50:36,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:50:36,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:50:36,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 18:50:36,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 18:50:36,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 18:50:36,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 18:50:36,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 18:50:36,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-08 18:50:36,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:50:36,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:50:36,576 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:50:36,579 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:50:37,233 INFO L? ?]: Removed 140 outVars from TransFormulas that were not future-live. [2024-11-08 18:50:37,234 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:50:37,257 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:50:37,259 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:50:37,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:50:37 BoogieIcfgContainer [2024-11-08 18:50:37,260 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:50:37,263 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:50:37,263 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:50:37,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:50:37,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:50:35" (1/3) ... [2024-11-08 18:50:37,269 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b497ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:50:37, skipping insertion in model container [2024-11-08 18:50:37,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:50:36" (2/3) ... [2024-11-08 18:50:37,269 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b497ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:50:37, skipping insertion in model container [2024-11-08 18:50:37,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:50:37" (3/3) ... [2024-11-08 18:50:37,272 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-37.i [2024-11-08 18:50:37,290 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:50:37,290 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:50:37,378 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:50:37,385 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;@2b0164df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:50:37,385 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:50:37,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 87 states have (on average 1.4252873563218391) internal successors, (124), 88 states have internal predecessors, (124), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 18:50:37,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 18:50:37,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:37,407 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:50:37,408 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:37,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:37,414 INFO L85 PathProgramCache]: Analyzing trace with hash -270818066, now seen corresponding path program 1 times [2024-11-08 18:50:37,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:37,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441247689] [2024-11-08 18:50:37,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:37,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:37,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:50:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:37,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:50:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:37,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:50:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:37,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:50:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:37,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:50:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:37,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:50:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:37,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:50:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:37,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:50:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:37,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:50:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:37,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:50:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:37,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:50:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:37,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:50:37,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:37,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:50:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:37,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 18:50:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:37,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 18:50:37,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:37,983 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:50:37,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:37,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441247689] [2024-11-08 18:50:37,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441247689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:37,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:50:37,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:50:37,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453303787] [2024-11-08 18:50:37,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:37,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:50:37,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:38,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:50:38,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:50:38,033 INFO L87 Difference]: Start difference. First operand has 105 states, 87 states have (on average 1.4252873563218391) internal successors, (124), 88 states have internal predecessors, (124), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 18:50:38,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:38,079 INFO L93 Difference]: Finished difference Result 203 states and 317 transitions. [2024-11-08 18:50:38,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:50:38,082 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 124 [2024-11-08 18:50:38,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:38,092 INFO L225 Difference]: With dead ends: 203 [2024-11-08 18:50:38,094 INFO L226 Difference]: Without dead ends: 101 [2024-11-08 18:50:38,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:50:38,103 INFO L432 NwaCegarLoop]: 147 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, 147 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 [2024-11-08 18:50:38,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:50:38,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-08 18:50:38,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-08 18:50:38,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 84 states have internal predecessors, (117), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 18:50:38,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2024-11-08 18:50:38,166 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 147 transitions. Word has length 124 [2024-11-08 18:50:38,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:38,167 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 147 transitions. [2024-11-08 18:50:38,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 18:50:38,168 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2024-11-08 18:50:38,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 18:50:38,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:38,173 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:50:38,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:50:38,174 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:38,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:38,175 INFO L85 PathProgramCache]: Analyzing trace with hash -90220784, now seen corresponding path program 1 times [2024-11-08 18:50:38,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:38,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381022714] [2024-11-08 18:50:38,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:38,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:38,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:50:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:38,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:50:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:38,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:50:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:38,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:50:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:38,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:50:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:38,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:50:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:38,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:50:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:38,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:50:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:38,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:50:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:38,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:50:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:38,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:50:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:38,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:50:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:38,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:50:38,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:38,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 18:50:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:38,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 18:50:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:38,654 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:50:38,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:38,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381022714] [2024-11-08 18:50:38,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381022714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:38,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:50:38,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:50:38,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249288687] [2024-11-08 18:50:38,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:38,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:50:38,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:38,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:50:38,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:50:38,665 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:50:38,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:38,739 INFO L93 Difference]: Finished difference Result 202 states and 295 transitions. [2024-11-08 18:50:38,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:50:38,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2024-11-08 18:50:38,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:38,746 INFO L225 Difference]: With dead ends: 202 [2024-11-08 18:50:38,746 INFO L226 Difference]: Without dead ends: 104 [2024-11-08 18:50:38,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:50:38,751 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 1 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 421 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 [2024-11-08 18:50:38,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 421 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:50:38,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-08 18:50:38,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2024-11-08 18:50:38,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 86 states have (on average 1.3837209302325582) internal successors, (119), 86 states have internal predecessors, (119), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 18:50:38,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 149 transitions. [2024-11-08 18:50:38,778 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 149 transitions. Word has length 124 [2024-11-08 18:50:38,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:38,780 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 149 transitions. [2024-11-08 18:50:38,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:50:38,781 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 149 transitions. [2024-11-08 18:50:38,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 18:50:38,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:38,786 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:50:38,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:50:38,787 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:38,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:38,789 INFO L85 PathProgramCache]: Analyzing trace with hash 589837586, now seen corresponding path program 1 times [2024-11-08 18:50:38,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:38,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060823950] [2024-11-08 18:50:38,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:38,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:39,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:50:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:39,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:50:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:39,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:50:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:39,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:50:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:39,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:50:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:39,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:50:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:39,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:50:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:39,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:50:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:39,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:50:39,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:39,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:50:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:39,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:50:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:39,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:50:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:39,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:50:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:39,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 18:50:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:39,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 18:50:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:39,232 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:50:39,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:39,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060823950] [2024-11-08 18:50:39,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060823950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:39,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:50:39,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:50:39,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749101769] [2024-11-08 18:50:39,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:39,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:50:39,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:39,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:50:39,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:50:39,238 INFO L87 Difference]: Start difference. First operand 103 states and 149 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:50:39,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:39,279 INFO L93 Difference]: Finished difference Result 206 states and 299 transitions. [2024-11-08 18:50:39,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:50:39,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2024-11-08 18:50:39,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:39,283 INFO L225 Difference]: With dead ends: 206 [2024-11-08 18:50:39,283 INFO L226 Difference]: Without dead ends: 106 [2024-11-08 18:50:39,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:50:39,287 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 1 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 424 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 [2024-11-08 18:50:39,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 424 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:50:39,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-08 18:50:39,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-11-08 18:50:39,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 88 states have (on average 1.375) internal successors, (121), 88 states have internal predecessors, (121), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 18:50:39,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 151 transitions. [2024-11-08 18:50:39,306 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 151 transitions. Word has length 124 [2024-11-08 18:50:39,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:39,307 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 151 transitions. [2024-11-08 18:50:39,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:50:39,307 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 151 transitions. [2024-11-08 18:50:39,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 18:50:39,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:39,315 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:50:39,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:50:39,316 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:39,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:39,316 INFO L85 PathProgramCache]: Analyzing trace with hash 591684628, now seen corresponding path program 1 times [2024-11-08 18:50:39,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:39,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790054552] [2024-11-08 18:50:39,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:39,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:39,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:40,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:50:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:40,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:50:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:40,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:50:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:40,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:50:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:40,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:50:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:40,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:50:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:40,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:50:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:40,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:50:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:40,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:50:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:40,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:50:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:40,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:50:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:40,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:50:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:40,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:50:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:40,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 18:50:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:40,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 18:50:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:40,723 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:50:40,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:40,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790054552] [2024-11-08 18:50:40,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790054552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:40,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:50:40,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:50:40,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321045792] [2024-11-08 18:50:40,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:40,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:50:40,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:40,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:50:40,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:50:40,729 INFO L87 Difference]: Start difference. First operand 105 states and 151 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 18:50:40,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:40,901 INFO L93 Difference]: Finished difference Result 232 states and 333 transitions. [2024-11-08 18:50:40,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:50:40,903 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 124 [2024-11-08 18:50:40,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:40,905 INFO L225 Difference]: With dead ends: 232 [2024-11-08 18:50:40,905 INFO L226 Difference]: Without dead ends: 130 [2024-11-08 18:50:40,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:50:40,911 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 98 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:50:40,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 729 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:50:40,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-08 18:50:40,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 129. [2024-11-08 18:50:40,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 104 states have (on average 1.3365384615384615) internal successors, (139), 105 states have internal predecessors, (139), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-08 18:50:40,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 183 transitions. [2024-11-08 18:50:40,938 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 183 transitions. Word has length 124 [2024-11-08 18:50:40,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:40,939 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 183 transitions. [2024-11-08 18:50:40,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 18:50:40,939 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 183 transitions. [2024-11-08 18:50:40,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 18:50:40,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:40,941 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:50:40,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:50:40,942 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:40,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:40,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1163409864, now seen corresponding path program 1 times [2024-11-08 18:50:40,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:40,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153397831] [2024-11-08 18:50:40,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:40,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:41,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:50:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:41,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:50:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:41,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:50:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:41,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:50:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:41,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:50:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:41,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:50:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:41,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:50:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:42,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:50:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:42,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:50:42,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:42,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:50:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:42,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:50:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:42,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:50:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:42,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:50:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:42,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 18:50:42,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:42,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 18:50:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:42,043 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-08 18:50:42,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:42,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153397831] [2024-11-08 18:50:42,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153397831] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:50:42,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582982691] [2024-11-08 18:50:42,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:42,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:50:42,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:50:42,047 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:50:42,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:50:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:42,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 18:50:42,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:50:42,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-08 18:50:42,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2024-11-08 18:50:42,650 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 152 proven. 33 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-08 18:50:42,650 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:50:42,948 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-08 18:50:42,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582982691] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:50:42,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:50:42,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2024-11-08 18:50:42,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459973451] [2024-11-08 18:50:42,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:50:42,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 18:50:42,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:42,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 18:50:42,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:50:42,953 INFO L87 Difference]: Start difference. First operand 129 states and 183 transitions. Second operand has 14 states, 11 states have (on average 8.181818181818182) internal successors, (90), 14 states have internal predecessors, (90), 7 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (42), 4 states have call predecessors, (42), 7 states have call successors, (42) [2024-11-08 18:50:43,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:43,427 INFO L93 Difference]: Finished difference Result 245 states and 341 transitions. [2024-11-08 18:50:43,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 18:50:43,428 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 8.181818181818182) internal successors, (90), 14 states have internal predecessors, (90), 7 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (42), 4 states have call predecessors, (42), 7 states have call successors, (42) Word has length 127 [2024-11-08 18:50:43,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:43,431 INFO L225 Difference]: With dead ends: 245 [2024-11-08 18:50:43,431 INFO L226 Difference]: Without dead ends: 139 [2024-11-08 18:50:43,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 275 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:50:43,433 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 205 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:50:43,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 518 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:50:43,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-08 18:50:43,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 137. [2024-11-08 18:50:43,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 110 states have (on average 1.309090909090909) internal successors, (144), 111 states have internal predecessors, (144), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-08 18:50:43,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 188 transitions. [2024-11-08 18:50:43,447 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 188 transitions. Word has length 127 [2024-11-08 18:50:43,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:43,448 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 188 transitions. [2024-11-08 18:50:43,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 8.181818181818182) internal successors, (90), 14 states have internal predecessors, (90), 7 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (42), 4 states have call predecessors, (42), 7 states have call successors, (42) [2024-11-08 18:50:43,449 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 188 transitions. [2024-11-08 18:50:43,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 18:50:43,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:43,450 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:50:43,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:50:43,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:50:43,655 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:43,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:43,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1672882954, now seen corresponding path program 1 times [2024-11-08 18:50:43,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:43,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490451989] [2024-11-08 18:50:43,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:43,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:44,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:50:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:44,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:50:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:44,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:50:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:44,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:50:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:44,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:50:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:44,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:50:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:44,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:50:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:44,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:50:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:44,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:50:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:44,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:50:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:44,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:50:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:44,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:50:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:44,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:50:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:44,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 18:50:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:44,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 18:50:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:44,188 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:50:44,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:44,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490451989] [2024-11-08 18:50:44,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490451989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:44,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:50:44,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:50:44,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871086345] [2024-11-08 18:50:44,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:44,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:50:44,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:44,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:50:44,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:50:44,191 INFO L87 Difference]: Start difference. First operand 137 states and 188 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:50:44,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:44,334 INFO L93 Difference]: Finished difference Result 269 states and 369 transitions. [2024-11-08 18:50:44,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:50:44,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2024-11-08 18:50:44,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:44,337 INFO L225 Difference]: With dead ends: 269 [2024-11-08 18:50:44,337 INFO L226 Difference]: Without dead ends: 159 [2024-11-08 18:50:44,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:50:44,338 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 128 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:50:44,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 595 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:50:44,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-08 18:50:44,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2024-11-08 18:50:44,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 122 states have internal predecessors, (154), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-08 18:50:44,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 214 transitions. [2024-11-08 18:50:44,355 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 214 transitions. Word has length 127 [2024-11-08 18:50:44,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:44,356 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 214 transitions. [2024-11-08 18:50:44,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:50:44,356 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 214 transitions. [2024-11-08 18:50:44,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 18:50:44,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:44,358 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:50:44,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:50:44,359 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:44,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:44,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1342220664, now seen corresponding path program 1 times [2024-11-08 18:50:44,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:44,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793034444] [2024-11-08 18:50:44,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:44,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:45,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:50:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:45,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:50:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:45,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:50:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:45,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:50:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:45,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:50:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:45,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:50:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:45,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:50:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:45,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:50:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:45,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:50:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:45,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:50:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:45,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:50:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:45,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:50:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:45,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:50:45,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:45,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 18:50:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:45,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 18:50:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:45,546 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 39 proven. 3 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-08 18:50:45,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:45,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793034444] [2024-11-08 18:50:45,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793034444] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:50:45,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882293623] [2024-11-08 18:50:45,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:45,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:50:45,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:50:45,550 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:50:45,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:50:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:45,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 18:50:45,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:50:45,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:50:45,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-08 18:50:46,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-08 18:50:46,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 18:50:46,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-08 18:50:46,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-11-08 18:50:46,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-08 18:50:46,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:50:46,390 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 215 proven. 3 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-08 18:50:46,391 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:50:46,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-08 18:50:46,953 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 39 proven. 3 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-08 18:50:46,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882293623] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:50:46,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:50:46,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 27 [2024-11-08 18:50:46,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096444287] [2024-11-08 18:50:46,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:50:46,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-08 18:50:46,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:46,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-08 18:50:46,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=607, Unknown=0, NotChecked=0, Total=702 [2024-11-08 18:50:46,956 INFO L87 Difference]: Start difference. First operand 157 states and 214 transitions. Second operand has 27 states, 24 states have (on average 5.75) internal successors, (138), 27 states have internal predecessors, (138), 11 states have call successors, (42), 3 states have call predecessors, (42), 6 states have return successors, (42), 8 states have call predecessors, (42), 11 states have call successors, (42) [2024-11-08 18:50:48,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:48,672 INFO L93 Difference]: Finished difference Result 289 states and 383 transitions. [2024-11-08 18:50:48,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 18:50:48,673 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 5.75) internal successors, (138), 27 states have internal predecessors, (138), 11 states have call successors, (42), 3 states have call predecessors, (42), 6 states have return successors, (42), 8 states have call predecessors, (42), 11 states have call successors, (42) Word has length 127 [2024-11-08 18:50:48,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:48,675 INFO L225 Difference]: With dead ends: 289 [2024-11-08 18:50:48,675 INFO L226 Difference]: Without dead ends: 179 [2024-11-08 18:50:48,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=412, Invalid=1658, Unknown=0, NotChecked=0, Total=2070 [2024-11-08 18:50:48,678 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 931 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:50:48,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [932 Valid, 927 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 921 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 18:50:48,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-08 18:50:48,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 161. [2024-11-08 18:50:48,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 125 states have (on average 1.248) internal successors, (156), 126 states have internal predecessors, (156), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 18:50:48,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 212 transitions. [2024-11-08 18:50:48,708 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 212 transitions. Word has length 127 [2024-11-08 18:50:48,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:48,709 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 212 transitions. [2024-11-08 18:50:48,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 5.75) internal successors, (138), 27 states have internal predecessors, (138), 11 states have call successors, (42), 3 states have call predecessors, (42), 6 states have return successors, (42), 8 states have call predecessors, (42), 11 states have call successors, (42) [2024-11-08 18:50:48,709 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 212 transitions. [2024-11-08 18:50:48,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 18:50:48,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:48,716 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:50:48,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:50:48,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-08 18:50:48,921 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:48,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:48,921 INFO L85 PathProgramCache]: Analyzing trace with hash 393143028, now seen corresponding path program 1 times [2024-11-08 18:50:48,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:48,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579833213] [2024-11-08 18:50:48,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:48,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:49,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:50:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:49,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:50:49,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:49,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:50:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:49,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:50:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:49,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:50:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:49,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:50:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:49,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:50:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:49,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:50:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:49,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:50:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:49,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:50:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:49,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:50:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:49,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:50:49,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:49,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:50:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:49,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 18:50:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:49,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 18:50:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:49,581 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:50:49,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:49,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579833213] [2024-11-08 18:50:49,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579833213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:49,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:50:49,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:50:49,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614782443] [2024-11-08 18:50:49,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:49,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:50:49,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:49,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:50:49,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:50:49,585 INFO L87 Difference]: Start difference. First operand 161 states and 212 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:50:49,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:49,766 INFO L93 Difference]: Finished difference Result 281 states and 368 transitions. [2024-11-08 18:50:49,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:50:49,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2024-11-08 18:50:49,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:49,768 INFO L225 Difference]: With dead ends: 281 [2024-11-08 18:50:49,768 INFO L226 Difference]: Without dead ends: 163 [2024-11-08 18:50:49,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:50:49,770 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 89 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:50:49,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 603 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:50:49,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-08 18:50:49,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2024-11-08 18:50:49,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 126 states have (on average 1.2380952380952381) internal successors, (156), 127 states have internal predecessors, (156), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 18:50:49,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 212 transitions. [2024-11-08 18:50:49,798 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 212 transitions. Word has length 127 [2024-11-08 18:50:49,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:49,799 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 212 transitions. [2024-11-08 18:50:49,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:50:49,799 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 212 transitions. [2024-11-08 18:50:49,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 18:50:49,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:49,801 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:50:49,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:50:49,802 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:49,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:49,802 INFO L85 PathProgramCache]: Analyzing trace with hash 936472333, now seen corresponding path program 1 times [2024-11-08 18:50:49,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:49,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473466410] [2024-11-08 18:50:49,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:49,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:50,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:50:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:50,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:50:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:50,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:50:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:50,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:50:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:50,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:50:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:50,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:50:50,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:50,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:50:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:50,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:50:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:50,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:50:50,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:50,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:50:50,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:50,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:50:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:50,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:50:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:50,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:50:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:50,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 18:50:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:50,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 18:50:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:50,348 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:50:50,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:50,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473466410] [2024-11-08 18:50:50,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473466410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:50,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:50:50,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:50:50,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675689411] [2024-11-08 18:50:50,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:50,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:50:50,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:50,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:50:50,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:50:50,351 INFO L87 Difference]: Start difference. First operand 163 states and 212 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:50:50,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:50,500 INFO L93 Difference]: Finished difference Result 289 states and 373 transitions. [2024-11-08 18:50:50,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:50:50,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 129 [2024-11-08 18:50:50,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:50,502 INFO L225 Difference]: With dead ends: 289 [2024-11-08 18:50:50,502 INFO L226 Difference]: Without dead ends: 169 [2024-11-08 18:50:50,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:50:50,503 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 79 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:50:50,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 430 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:50:50,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-08 18:50:50,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2024-11-08 18:50:50,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 131 states have (on average 1.2290076335877862) internal successors, (161), 132 states have internal predecessors, (161), 28 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 18:50:50,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 217 transitions. [2024-11-08 18:50:50,527 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 217 transitions. Word has length 129 [2024-11-08 18:50:50,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:50,528 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 217 transitions. [2024-11-08 18:50:50,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:50:50,528 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 217 transitions. [2024-11-08 18:50:50,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 18:50:50,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:50,530 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:50:50,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:50:50,530 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:50,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:50,531 INFO L85 PathProgramCache]: Analyzing trace with hash -840382071, now seen corresponding path program 1 times [2024-11-08 18:50:50,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:50,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280095409] [2024-11-08 18:50:50,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:50,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:52,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:50:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:52,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:50:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:52,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:50:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:52,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:50:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:52,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:50:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:52,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:50:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:52,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:50:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:52,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:50:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:52,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:50:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:52,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:50:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:52,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:50:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:52,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:50:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:52,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:50:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:52,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 18:50:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:52,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 18:50:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:52,155 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:50:52,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:52,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280095409] [2024-11-08 18:50:52,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280095409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:52,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:50:52,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:50:52,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907550305] [2024-11-08 18:50:52,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:52,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:50:52,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:52,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:50:52,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:50:52,158 INFO L87 Difference]: Start difference. First operand 169 states and 217 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 18:50:52,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:52,765 INFO L93 Difference]: Finished difference Result 188 states and 236 transitions. [2024-11-08 18:50:52,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:50:52,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 129 [2024-11-08 18:50:52,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:52,768 INFO L225 Difference]: With dead ends: 188 [2024-11-08 18:50:52,768 INFO L226 Difference]: Without dead ends: 186 [2024-11-08 18:50:52,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:50:52,769 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 199 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:50:52,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 845 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:50:52,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-08 18:50:52,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 172. [2024-11-08 18:50:52,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 134 states have (on average 1.2238805970149254) internal successors, (164), 135 states have internal predecessors, (164), 28 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 18:50:52,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 220 transitions. [2024-11-08 18:50:52,807 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 220 transitions. Word has length 129 [2024-11-08 18:50:52,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:52,808 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 220 transitions. [2024-11-08 18:50:52,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 18:50:52,809 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 220 transitions. [2024-11-08 18:50:52,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 18:50:52,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:52,811 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:50:52,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:50:52,811 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:52,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:52,812 INFO L85 PathProgramCache]: Analyzing trace with hash -838535029, now seen corresponding path program 1 times [2024-11-08 18:50:52,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:52,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675936269] [2024-11-08 18:50:52,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:52,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:53,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:50:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:53,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:50:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:53,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:50:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:53,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:50:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:53,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:50:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:53,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:50:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:53,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:50:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:53,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:50:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:53,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:50:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:53,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:50:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:53,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:50:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:53,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:50:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:53,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:50:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:53,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 18:50:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:53,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 18:50:53,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:53,108 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:50:53,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:53,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675936269] [2024-11-08 18:50:53,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675936269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:53,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:50:53,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:50:53,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785745609] [2024-11-08 18:50:53,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:53,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:50:53,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:53,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:50:53,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:50:53,111 INFO L87 Difference]: Start difference. First operand 172 states and 220 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:50:53,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:53,204 INFO L93 Difference]: Finished difference Result 315 states and 397 transitions. [2024-11-08 18:50:53,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:50:53,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 129 [2024-11-08 18:50:53,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:53,207 INFO L225 Difference]: With dead ends: 315 [2024-11-08 18:50:53,207 INFO L226 Difference]: Without dead ends: 186 [2024-11-08 18:50:53,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:50:53,208 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 115 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:50:53,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 619 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:50:53,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-08 18:50:53,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 172. [2024-11-08 18:50:53,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 134 states have (on average 1.2164179104477613) internal successors, (163), 135 states have internal predecessors, (163), 28 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 18:50:53,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 219 transitions. [2024-11-08 18:50:53,242 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 219 transitions. Word has length 129 [2024-11-08 18:50:53,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:53,245 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 219 transitions. [2024-11-08 18:50:53,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:50:53,246 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 219 transitions. [2024-11-08 18:50:53,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 18:50:53,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:53,247 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:50:53,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:50:53,247 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:53,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:53,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1616530703, now seen corresponding path program 1 times [2024-11-08 18:50:53,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:53,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250077310] [2024-11-08 18:50:53,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:53,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:54,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:50:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:54,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:50:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:54,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:50:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:54,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:50:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:54,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:50:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:54,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:50:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:54,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:50:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:54,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:50:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:54,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:50:54,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:54,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:50:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:54,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:50:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:54,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:50:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:54,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:50:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:54,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 18:50:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:54,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 18:50:54,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:54,692 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:50:54,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:54,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250077310] [2024-11-08 18:50:54,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250077310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:54,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:50:54,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:50:54,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438517238] [2024-11-08 18:50:54,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:54,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:50:54,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:54,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:50:54,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:50:54,695 INFO L87 Difference]: Start difference. First operand 172 states and 219 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 18:50:54,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:54,988 INFO L93 Difference]: Finished difference Result 365 states and 463 transitions. [2024-11-08 18:50:54,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:50:54,989 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 129 [2024-11-08 18:50:54,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:54,993 INFO L225 Difference]: With dead ends: 365 [2024-11-08 18:50:54,993 INFO L226 Difference]: Without dead ends: 236 [2024-11-08 18:50:54,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:50:54,994 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 63 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:50:54,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 937 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:50:54,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-08 18:50:55,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 189. [2024-11-08 18:50:55,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 151 states have (on average 1.2251655629139073) internal successors, (185), 152 states have internal predecessors, (185), 28 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 18:50:55,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 241 transitions. [2024-11-08 18:50:55,027 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 241 transitions. Word has length 129 [2024-11-08 18:50:55,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:55,028 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 241 transitions. [2024-11-08 18:50:55,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 18:50:55,028 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 241 transitions. [2024-11-08 18:50:55,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-08 18:50:55,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:55,030 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:50:55,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:50:55,030 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:55,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:55,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1151215250, now seen corresponding path program 1 times [2024-11-08 18:50:55,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:55,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714305475] [2024-11-08 18:50:55,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:55,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:50:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:50:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:50:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:50:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:50:55,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:50:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:50:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:50:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:50:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:50:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:50:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:50:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:50:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 18:50:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 18:50:55,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,488 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:50:55,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:55,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714305475] [2024-11-08 18:50:55,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714305475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:55,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:50:55,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:50:55,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243067617] [2024-11-08 18:50:55,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:55,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:50:55,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:55,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:50:55,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:50:55,491 INFO L87 Difference]: Start difference. First operand 189 states and 241 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:50:55,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:55,652 INFO L93 Difference]: Finished difference Result 339 states and 428 transitions. [2024-11-08 18:50:55,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:50:55,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 131 [2024-11-08 18:50:55,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:55,655 INFO L225 Difference]: With dead ends: 339 [2024-11-08 18:50:55,655 INFO L226 Difference]: Without dead ends: 193 [2024-11-08 18:50:55,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:50:55,657 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 91 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:50:55,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 343 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:50:55,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-08 18:50:55,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2024-11-08 18:50:55,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 154 states have (on average 1.2142857142857142) internal successors, (187), 155 states have internal predecessors, (187), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 18:50:55,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 243 transitions. [2024-11-08 18:50:55,688 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 243 transitions. Word has length 131 [2024-11-08 18:50:55,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:55,689 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 243 transitions. [2024-11-08 18:50:55,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:50:55,689 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 243 transitions. [2024-11-08 18:50:55,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-08 18:50:55,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:55,690 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:50:55,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:50:55,691 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:55,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:55,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1285228756, now seen corresponding path program 1 times [2024-11-08 18:50:55,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:55,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945995039] [2024-11-08 18:50:55,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:55,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:56,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:50:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:56,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:50:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:56,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:50:56,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:56,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:50:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:56,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:50:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:56,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:50:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:56,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:50:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:56,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:50:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:56,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:50:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:56,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:50:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:56,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:50:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:56,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:50:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:56,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:50:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:56,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 18:50:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:56,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 18:50:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:56,918 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 27 proven. 15 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-08 18:50:56,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:56,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945995039] [2024-11-08 18:50:56,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945995039] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:50:56,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675171137] [2024-11-08 18:50:56,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:56,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:50:56,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:50:56,921 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:50:56,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:50:57,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:57,328 INFO L255 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-08 18:50:57,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:50:57,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-08 18:50:57,911 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:50:57,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 34 [2024-11-08 18:50:58,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-08 18:50:58,102 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:50:58,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 13 [2024-11-08 18:50:58,153 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 282 proven. 42 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-08 18:50:58,154 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:50:58,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2024-11-08 18:50:59,255 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 36 proven. 45 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-11-08 18:50:59,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675171137] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:50:59,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:50:59,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 14] total 35 [2024-11-08 18:50:59,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708409968] [2024-11-08 18:50:59,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:50:59,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-08 18:50:59,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:59,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-08 18:50:59,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=989, Unknown=0, NotChecked=0, Total=1190 [2024-11-08 18:50:59,259 INFO L87 Difference]: Start difference. First operand 193 states and 243 transitions. Second operand has 35 states, 30 states have (on average 4.466666666666667) internal successors, (134), 35 states have internal predecessors, (134), 13 states have call successors, (41), 3 states have call predecessors, (41), 7 states have return successors, (41), 8 states have call predecessors, (41), 13 states have call successors, (41) [2024-11-08 18:51:01,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:51:01,392 INFO L93 Difference]: Finished difference Result 367 states and 449 transitions. [2024-11-08 18:51:01,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-08 18:51:01,393 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 30 states have (on average 4.466666666666667) internal successors, (134), 35 states have internal predecessors, (134), 13 states have call successors, (41), 3 states have call predecessors, (41), 7 states have return successors, (41), 8 states have call predecessors, (41), 13 states have call successors, (41) Word has length 131 [2024-11-08 18:51:01,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:51:01,394 INFO L225 Difference]: With dead ends: 367 [2024-11-08 18:51:01,395 INFO L226 Difference]: Without dead ends: 221 [2024-11-08 18:51:01,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 769 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=788, Invalid=2994, Unknown=0, NotChecked=0, Total=3782 [2024-11-08 18:51:01,397 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 347 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 1100 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:51:01,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1296 Invalid, 1253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1100 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 18:51:01,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-08 18:51:01,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 197. [2024-11-08 18:51:01,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 159 states have (on average 1.20125786163522) internal successors, (191), 160 states have internal predecessors, (191), 24 states have call successors, (24), 13 states have call predecessors, (24), 13 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-08 18:51:01,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 239 transitions. [2024-11-08 18:51:01,434 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 239 transitions. Word has length 131 [2024-11-08 18:51:01,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:51:01,434 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 239 transitions. [2024-11-08 18:51:01,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 30 states have (on average 4.466666666666667) internal successors, (134), 35 states have internal predecessors, (134), 13 states have call successors, (41), 3 states have call predecessors, (41), 7 states have return successors, (41), 8 states have call predecessors, (41), 13 states have call successors, (41) [2024-11-08 18:51:01,435 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 239 transitions. [2024-11-08 18:51:01,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-08 18:51:01,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:51:01,436 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:51:01,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 18:51:01,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-08 18:51:01,641 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:51:01,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:51:01,641 INFO L85 PathProgramCache]: Analyzing trace with hash 437598537, now seen corresponding path program 1 times [2024-11-08 18:51:01,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:51:01,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578315836] [2024-11-08 18:51:01,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:01,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:51:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:01,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:51:01,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:01,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:51:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:01,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:51:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:01,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:51:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:01,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:51:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:01,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:51:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:01,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:51:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:01,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:51:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:01,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:51:01,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:01,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:51:01,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:01,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:51:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:01,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:51:01,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:01,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:51:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:01,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 18:51:01,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:01,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 18:51:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:01,951 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:51:01,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:51:01,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578315836] [2024-11-08 18:51:01,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578315836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:51:01,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:51:01,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:51:01,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734244992] [2024-11-08 18:51:01,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:51:01,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:51:01,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:51:01,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:51:01,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:51:01,955 INFO L87 Difference]: Start difference. First operand 197 states and 239 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:51:02,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:51:02,029 INFO L93 Difference]: Finished difference Result 355 states and 432 transitions. [2024-11-08 18:51:02,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:51:02,030 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 133 [2024-11-08 18:51:02,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:51:02,031 INFO L225 Difference]: With dead ends: 355 [2024-11-08 18:51:02,031 INFO L226 Difference]: Without dead ends: 201 [2024-11-08 18:51:02,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:51:02,034 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:51:02,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 666 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:51:02,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-08 18:51:02,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 198. [2024-11-08 18:51:02,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 160 states have (on average 1.2) internal successors, (192), 161 states have internal predecessors, (192), 24 states have call successors, (24), 13 states have call predecessors, (24), 13 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-08 18:51:02,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 240 transitions. [2024-11-08 18:51:02,069 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 240 transitions. Word has length 133 [2024-11-08 18:51:02,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:51:02,070 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 240 transitions. [2024-11-08 18:51:02,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:51:02,070 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 240 transitions. [2024-11-08 18:51:02,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-08 18:51:02,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:51:02,071 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:51:02,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:51:02,072 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:51:02,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:51:02,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1039286757, now seen corresponding path program 1 times [2024-11-08 18:51:02,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:51:02,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810717157] [2024-11-08 18:51:02,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:02,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:51:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 18:51:02,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1625221944] [2024-11-08 18:51:02,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:02,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:51:02,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:51:02,206 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:51:02,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:51:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:02,647 INFO L255 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-08 18:51:02,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:51:02,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:51:02,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-08 18:51:03,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 5 [2024-11-08 18:51:03,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-08 18:51:03,262 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:51:03,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 38 [2024-11-08 18:51:03,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 40 [2024-11-08 18:51:03,454 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-08 18:51:03,454 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:51:03,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:51:03,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810717157] [2024-11-08 18:51:03,455 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 18:51:03,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625221944] [2024-11-08 18:51:03,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625221944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:51:03,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:51:03,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:51:03,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135471005] [2024-11-08 18:51:03,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:51:03,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:51:03,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:51:03,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:51:03,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:51:03,458 INFO L87 Difference]: Start difference. First operand 198 states and 240 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 18:51:04,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:51:04,010 INFO L93 Difference]: Finished difference Result 482 states and 591 transitions. [2024-11-08 18:51:04,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:51:04,011 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 135 [2024-11-08 18:51:04,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:51:04,013 INFO L225 Difference]: With dead ends: 482 [2024-11-08 18:51:04,013 INFO L226 Difference]: Without dead ends: 327 [2024-11-08 18:51:04,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:51:04,014 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 198 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:51:04,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 538 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:51:04,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-08 18:51:04,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 234. [2024-11-08 18:51:04,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 186 states have (on average 1.1774193548387097) internal successors, (219), 186 states have internal predecessors, (219), 30 states have call successors, (30), 17 states have call predecessors, (30), 17 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-08 18:51:04,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 279 transitions. [2024-11-08 18:51:04,056 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 279 transitions. Word has length 135 [2024-11-08 18:51:04,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:51:04,056 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 279 transitions. [2024-11-08 18:51:04,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 18:51:04,057 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 279 transitions. [2024-11-08 18:51:04,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-08 18:51:04,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:51:04,058 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:51:04,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 18:51:04,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-08 18:51:04,259 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:51:04,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:51:04,259 INFO L85 PathProgramCache]: Analyzing trace with hash -337686883, now seen corresponding path program 1 times [2024-11-08 18:51:04,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:51:04,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840209846] [2024-11-08 18:51:04,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:04,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:51:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 18:51:04,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1601376629] [2024-11-08 18:51:04,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:04,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:51:04,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:51:04,397 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:51:04,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:51:04,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:04,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 18:51:04,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:51:04,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:51:04,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-08 18:51:05,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-08 18:51:05,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 18:51:05,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 18:51:05,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 34 [2024-11-08 18:51:05,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 26 [2024-11-08 18:51:05,292 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:51:05,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 16 [2024-11-08 18:51:05,368 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-08 18:51:05,368 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:51:05,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:51:05,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840209846] [2024-11-08 18:51:05,368 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 18:51:05,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601376629] [2024-11-08 18:51:05,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601376629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:51:05,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:51:05,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:51:05,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035235579] [2024-11-08 18:51:05,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:51:05,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:51:05,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:51:05,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:51:05,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:51:05,371 INFO L87 Difference]: Start difference. First operand 234 states and 279 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 18:51:06,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:51:06,013 INFO L93 Difference]: Finished difference Result 391 states and 472 transitions. [2024-11-08 18:51:06,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:51:06,014 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 135 [2024-11-08 18:51:06,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:51:06,016 INFO L225 Difference]: With dead ends: 391 [2024-11-08 18:51:06,016 INFO L226 Difference]: Without dead ends: 236 [2024-11-08 18:51:06,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:51:06,017 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 190 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:51:06,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 659 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:51:06,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-08 18:51:06,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2024-11-08 18:51:06,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 188 states have (on average 1.175531914893617) internal successors, (221), 188 states have internal predecessors, (221), 30 states have call successors, (30), 17 states have call predecessors, (30), 17 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-08 18:51:06,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 281 transitions. [2024-11-08 18:51:06,062 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 281 transitions. Word has length 135 [2024-11-08 18:51:06,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:51:06,063 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 281 transitions. [2024-11-08 18:51:06,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 18:51:06,063 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 281 transitions. [2024-11-08 18:51:06,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-08 18:51:06,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:51:06,064 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:51:06,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 18:51:06,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-08 18:51:06,265 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:51:06,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:51:06,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1155335333, now seen corresponding path program 1 times [2024-11-08 18:51:06,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:51:06,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142660307] [2024-11-08 18:51:06,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:06,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:51:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 18:51:06,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1948663660] [2024-11-08 18:51:06,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:06,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:51:06,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:51:06,373 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:51:06,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:51:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:51:07,016 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:51:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:51:07,477 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:51:07,477 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:51:07,479 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 18:51:07,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 18:51:07,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-08 18:51:07,685 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:51:07,825 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:51:07,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:51:07 BoogieIcfgContainer [2024-11-08 18:51:07,828 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:51:07,829 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:51:07,829 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:51:07,829 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:51:07,830 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:50:37" (3/4) ... [2024-11-08 18:51:07,833 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:51:07,834 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:51:07,835 INFO L158 Benchmark]: Toolchain (without parser) took 32190.26ms. Allocated memory was 161.5MB in the beginning and 597.7MB in the end (delta: 436.2MB). Free memory was 123.5MB in the beginning and 518.5MB in the end (delta: -395.0MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2024-11-08 18:51:07,835 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 132.1MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:51:07,835 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.07ms. Allocated memory is still 161.5MB. Free memory was 123.5MB in the beginning and 107.1MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 18:51:07,836 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.46ms. Allocated memory is still 161.5MB. Free memory was 107.1MB in the beginning and 102.5MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:51:07,836 INFO L158 Benchmark]: Boogie Preprocessor took 144.24ms. Allocated memory is still 161.5MB. Free memory was 102.5MB in the beginning and 97.5MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 18:51:07,836 INFO L158 Benchmark]: RCFGBuilder took 987.93ms. Allocated memory is still 161.5MB. Free memory was 97.1MB in the beginning and 100.4MB in the end (delta: -3.3MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2024-11-08 18:51:07,837 INFO L158 Benchmark]: TraceAbstraction took 30565.56ms. Allocated memory was 161.5MB in the beginning and 597.7MB in the end (delta: 436.2MB). Free memory was 100.4MB in the beginning and 518.5MB in the end (delta: -418.1MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2024-11-08 18:51:07,837 INFO L158 Benchmark]: Witness Printer took 5.06ms. Allocated memory is still 597.7MB. Free memory is still 518.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:51:07,839 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 132.1MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.07ms. Allocated memory is still 161.5MB. Free memory was 123.5MB in the beginning and 107.1MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.46ms. Allocated memory is still 161.5MB. Free memory was 107.1MB in the beginning and 102.5MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 144.24ms. Allocated memory is still 161.5MB. Free memory was 102.5MB in the beginning and 97.5MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 987.93ms. Allocated memory is still 161.5MB. Free memory was 97.1MB in the beginning and 100.4MB in the end (delta: -3.3MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * TraceAbstraction took 30565.56ms. Allocated memory was 161.5MB in the beginning and 597.7MB in the end (delta: 436.2MB). Free memory was 100.4MB in the beginning and 518.5MB in the end (delta: -418.1MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * Witness Printer took 5.06ms. Allocated memory is still 597.7MB. Free memory is still 518.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 97. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] float float_Array_0[1] = { 25.1 }; [L22-L24] float float_Array_0[1] = { 25.1 }; [L25-L27] signed char signed_char_Array_0[5] = { 25, 16, -10, -25, 0 }; [L25-L27] signed char signed_char_Array_0[5] = { 25, 16, -10, -25, 0 }; [L25-L27] signed char signed_char_Array_0[5] = { 25, 16, -10, -25, 0 }; [L25-L27] signed char signed_char_Array_0[5] = { 25, 16, -10, -25, 0 }; [L25-L27] signed char signed_char_Array_0[5] = { 25, 16, -10, -25, 0 }; [L25-L27] signed char signed_char_Array_0[5] = { 25, 16, -10, -25, 0 }; [L28-L30] signed long int signed_long_int_Array_0[2] = { -128, 256 }; [L28-L30] signed long int signed_long_int_Array_0[2] = { -128, 256 }; [L28-L30] signed long int signed_long_int_Array_0[2] = { -128, 256 }; [L31-L33] signed short int signed_short_int_Array_0[1] = { -16 }; [L31-L33] signed short int signed_short_int_Array_0[1] = { -16 }; [L34-L36] unsigned char unsigned_char_Array_0[2] = { 16, 8 }; [L34-L36] unsigned char unsigned_char_Array_0[2] = { 16, 8 }; [L34-L36] unsigned char unsigned_char_Array_0[2] = { 16, 8 }; [L37-L39] unsigned long int unsigned_long_int_Array_0[1] = { 2531521428 }; [L37-L39] unsigned long int unsigned_long_int_Array_0[1] = { 2531521428 }; [L40-L42] unsigned short int unsigned_short_int_Array_0[2] = { 100, 59049 }; [L40-L42] unsigned short int unsigned_short_int_Array_0[2] = { 100, 59049 }; [L40-L42] unsigned short int unsigned_short_int_Array_0[2] = { 100, 59049 }; VAL [float_Array_0={4:0}, isInitial=0, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L101] isInitial = 1 [L102] FCALL initially() [L103] COND TRUE 1 [L104] FCALL updateLastVariables() [L105] CALL updateVariables() [L70] float_Array_0[0] = __VERIFIER_nondet_float() [L71] EXPR float_Array_0[0] [L71] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L71] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F [L71] EXPR float_Array_0[0] [L71] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L71] EXPR (float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L71] EXPR (float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L71] CALL assume_abort_if_not((float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L71] RET assume_abort_if_not((float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L72] signed_char_Array_0[0] = __VERIFIER_nondet_char() [L73] EXPR signed_char_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L73] CALL assume_abort_if_not(signed_char_Array_0[0] >= 0) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L73] RET assume_abort_if_not(signed_char_Array_0[0] >= 0) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L74] EXPR signed_char_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L74] CALL assume_abort_if_not(signed_char_Array_0[0] <= 31) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L74] RET assume_abort_if_not(signed_char_Array_0[0] <= 31) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L75] signed_char_Array_0[1] = __VERIFIER_nondet_char() [L76] EXPR signed_char_Array_0[1] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L76] CALL assume_abort_if_not(signed_char_Array_0[1] >= 0) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L76] RET assume_abort_if_not(signed_char_Array_0[1] >= 0) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L77] EXPR signed_char_Array_0[1] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L77] CALL assume_abort_if_not(signed_char_Array_0[1] <= 63) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L77] RET assume_abort_if_not(signed_char_Array_0[1] <= 63) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L78] signed_char_Array_0[2] = __VERIFIER_nondet_char() [L79] EXPR signed_char_Array_0[2] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L79] CALL assume_abort_if_not(signed_char_Array_0[2] >= -63) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L79] RET assume_abort_if_not(signed_char_Array_0[2] >= -63) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L80] EXPR signed_char_Array_0[2] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L80] CALL assume_abort_if_not(signed_char_Array_0[2] <= 63) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L80] RET assume_abort_if_not(signed_char_Array_0[2] <= 63) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L81] unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L82] EXPR unsigned_char_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L82] CALL assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L82] RET assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L83] EXPR unsigned_char_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L83] CALL assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L83] RET assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L84] unsigned_long_int_Array_0[0] = __VERIFIER_nondet_ulong() [L85] EXPR unsigned_long_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L85] CALL assume_abort_if_not(unsigned_long_int_Array_0[0] >= 2147483647) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L85] RET assume_abort_if_not(unsigned_long_int_Array_0[0] >= 2147483647) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L86] EXPR unsigned_long_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L86] CALL assume_abort_if_not(unsigned_long_int_Array_0[0] <= 4294967295) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L86] RET assume_abort_if_not(unsigned_long_int_Array_0[0] <= 4294967295) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L87] unsigned_short_int_Array_0[0] = __VERIFIER_nondet_ushort() [L88] EXPR unsigned_short_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L88] CALL assume_abort_if_not(unsigned_short_int_Array_0[0] >= 0) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L88] RET assume_abort_if_not(unsigned_short_int_Array_0[0] >= 0) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L89] EXPR unsigned_short_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L89] CALL assume_abort_if_not(unsigned_short_int_Array_0[0] <= 32767) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L89] RET assume_abort_if_not(unsigned_short_int_Array_0[0] <= 32767) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L90] unsigned_short_int_Array_0[1] = __VERIFIER_nondet_ushort() [L91] EXPR unsigned_short_int_Array_0[1] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L91] CALL assume_abort_if_not(unsigned_short_int_Array_0[1] >= 32767) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L91] RET assume_abort_if_not(unsigned_short_int_Array_0[1] >= 32767) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L92] EXPR unsigned_short_int_Array_0[1] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L92] CALL assume_abort_if_not(unsigned_short_int_Array_0[1] <= 65535) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L92] RET assume_abort_if_not(unsigned_short_int_Array_0[1] <= 65535) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L105] RET updateVariables() [L106] CALL step() [L46] EXPR signed_char_Array_0[1] [L46] signed_long_int_Array_0[0] = signed_char_Array_0[1] [L47] EXPR signed_long_int_Array_0[0] [L47] signed_short_int_Array_0[0] = signed_long_int_Array_0[0] [L48] EXPR signed_long_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L48] EXPR ((signed_long_int_Array_0[0]) < 0 ) ? -(signed_long_int_Array_0[0]) : (signed_long_int_Array_0[0]) [L48] EXPR signed_long_int_Array_0[0] [L48] EXPR ((signed_long_int_Array_0[0]) < 0 ) ? -(signed_long_int_Array_0[0]) : (signed_long_int_Array_0[0]) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L48] signed long int stepLocal_0 = (((signed_long_int_Array_0[0]) < 0 ) ? -(signed_long_int_Array_0[0]) : (signed_long_int_Array_0[0])); [L49] EXPR unsigned_short_int_Array_0[1] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L49] COND FALSE !(unsigned_short_int_Array_0[1] <= stepLocal_0) [L52] EXPR signed_char_Array_0[2] [L52] signed_char_Array_0[3] = signed_char_Array_0[2] [L54] EXPR signed_short_int_Array_0[0] [L54] signed_long_int_Array_0[1] = signed_short_int_Array_0[0] [L55] EXPR unsigned_short_int_Array_0[1] [L55] EXPR unsigned_short_int_Array_0[0] [L55] EXPR signed_long_int_Array_0[1] [L55] EXPR signed_short_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L55] EXPR (unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) ^ (signed_long_int_Array_0[1] * signed_short_int_Array_0[0]) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L55] COND FALSE !(((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) ^ (signed_long_int_Array_0[1] * signed_short_int_Array_0[0])) <= -64) [L58] EXPR unsigned_char_Array_0[0] [L58] unsigned_char_Array_0[1] = unsigned_char_Array_0[0] [L60] EXPR unsigned_char_Array_0[1] [L60] unsigned char stepLocal_1 = unsigned_char_Array_0[1]; [L61] EXPR float_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L61] COND FALSE !(2.75f > float_Array_0[0]) [L64] EXPR unsigned_long_int_Array_0[0] [L64] EXPR signed_long_int_Array_0[0] [L64] EXPR signed_char_Array_0[1] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L64] EXPR ((signed_long_int_Array_0[0]) > (signed_char_Array_0[1])) ? (signed_long_int_Array_0[0]) : (signed_char_Array_0[1]) [L64] EXPR signed_char_Array_0[1] [L64] EXPR ((signed_long_int_Array_0[0]) > (signed_char_Array_0[1])) ? (signed_long_int_Array_0[0]) : (signed_char_Array_0[1]) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, stepLocal_1=30, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L64] COND TRUE (unsigned_long_int_Array_0[0] - ((((signed_long_int_Array_0[0]) > (signed_char_Array_0[1])) ? (signed_long_int_Array_0[0]) : (signed_char_Array_0[1])))) > stepLocal_1 [L65] EXPR signed_char_Array_0[1] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L65] EXPR ((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5)) [L65] EXPR signed_char_Array_0[1] [L65] EXPR ((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5)) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L65] EXPR signed_char_Array_0[2] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L65] EXPR ((((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) < (signed_char_Array_0[2])) ? (((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) : (signed_char_Array_0[2]) [L65] EXPR signed_char_Array_0[2] [L65] EXPR ((((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) < (signed_char_Array_0[2])) ? (((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) : (signed_char_Array_0[2]) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L65] signed_char_Array_0[4] = ((((((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) < (signed_char_Array_0[2])) ? (((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) : (signed_char_Array_0[2]))) [L106] RET step() [L107] CALL, EXPR property() [L97] EXPR unsigned_short_int_Array_0[1] [L97] EXPR unsigned_short_int_Array_0[0] [L97] EXPR signed_long_int_Array_0[1] [L97] EXPR signed_short_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L97] EXPR (unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) ^ (signed_long_int_Array_0[1] * signed_short_int_Array_0[0]) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L97] EXPR (((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) ^ (signed_long_int_Array_0[1] * signed_short_int_Array_0[0])) <= -64) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) [L97] EXPR unsigned_char_Array_0[1] [L97] EXPR unsigned_char_Array_0[0] [L97] EXPR (((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) ^ (signed_long_int_Array_0[1] * signed_short_int_Array_0[0])) <= -64) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L97] EXPR ((((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) ^ (signed_long_int_Array_0[1] * signed_short_int_Array_0[0])) <= -64) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) && ((unsigned_short_int_Array_0[1] <= ((((signed_long_int_Array_0[0]) < 0 ) ? -(signed_long_int_Array_0[0]) : (signed_long_int_Array_0[0])))) ? (signed_char_Array_0[3] == ((signed char) ((signed_char_Array_0[1] - (1 + signed_char_Array_0[0])) + signed_char_Array_0[2]))) : (signed_char_Array_0[3] == ((signed char) signed_char_Array_0[2]))) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L97] EXPR ((((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) ^ (signed_long_int_Array_0[1] * signed_short_int_Array_0[0])) <= -64) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) && ((unsigned_short_int_Array_0[1] <= ((((signed_long_int_Array_0[0]) < 0 ) ? -(signed_long_int_Array_0[0]) : (signed_long_int_Array_0[0])))) ? (signed_char_Array_0[3] == ((signed char) ((signed_char_Array_0[1] - (1 + signed_char_Array_0[0])) + signed_char_Array_0[2]))) : (signed_char_Array_0[3] == ((signed char) signed_char_Array_0[2]))) [L97] EXPR unsigned_short_int_Array_0[1] [L97] EXPR signed_long_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L97] EXPR ((signed_long_int_Array_0[0]) < 0 ) ? -(signed_long_int_Array_0[0]) : (signed_long_int_Array_0[0]) [L97] EXPR signed_long_int_Array_0[0] [L97] EXPR ((signed_long_int_Array_0[0]) < 0 ) ? -(signed_long_int_Array_0[0]) : (signed_long_int_Array_0[0]) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L97] EXPR (unsigned_short_int_Array_0[1] <= ((((signed_long_int_Array_0[0]) < 0 ) ? -(signed_long_int_Array_0[0]) : (signed_long_int_Array_0[0])))) ? (signed_char_Array_0[3] == ((signed char) ((signed_char_Array_0[1] - (1 + signed_char_Array_0[0])) + signed_char_Array_0[2]))) : (signed_char_Array_0[3] == ((signed char) signed_char_Array_0[2])) [L97] EXPR signed_char_Array_0[3] [L97] EXPR signed_char_Array_0[2] [L97] EXPR (unsigned_short_int_Array_0[1] <= ((((signed_long_int_Array_0[0]) < 0 ) ? -(signed_long_int_Array_0[0]) : (signed_long_int_Array_0[0])))) ? (signed_char_Array_0[3] == ((signed char) ((signed_char_Array_0[1] - (1 + signed_char_Array_0[0])) + signed_char_Array_0[2]))) : (signed_char_Array_0[3] == ((signed char) signed_char_Array_0[2])) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L97] EXPR ((((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) ^ (signed_long_int_Array_0[1] * signed_short_int_Array_0[0])) <= -64) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) && ((unsigned_short_int_Array_0[1] <= ((((signed_long_int_Array_0[0]) < 0 ) ? -(signed_long_int_Array_0[0]) : (signed_long_int_Array_0[0])))) ? (signed_char_Array_0[3] == ((signed char) ((signed_char_Array_0[1] - (1 + signed_char_Array_0[0])) + signed_char_Array_0[2]))) : (signed_char_Array_0[3] == ((signed char) signed_char_Array_0[2]))) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L97] EXPR (((((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) ^ (signed_long_int_Array_0[1] * signed_short_int_Array_0[0])) <= -64) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) && ((unsigned_short_int_Array_0[1] <= ((((signed_long_int_Array_0[0]) < 0 ) ? -(signed_long_int_Array_0[0]) : (signed_long_int_Array_0[0])))) ? (signed_char_Array_0[3] == ((signed char) ((signed_char_Array_0[1] - (1 + signed_char_Array_0[0])) + signed_char_Array_0[2]))) : (signed_char_Array_0[3] == ((signed char) signed_char_Array_0[2])))) && ((2.75f > float_Array_0[0]) ? (signed_char_Array_0[4] == ((signed char) (signed_char_Array_0[2] + signed_char_Array_0[1]))) : (((unsigned_long_int_Array_0[0] - ((((signed_long_int_Array_0[0]) > (signed_char_Array_0[1])) ? (signed_long_int_Array_0[0]) : (signed_char_Array_0[1])))) > unsigned_char_Array_0[1]) ? (signed_char_Array_0[4] == ((signed char) ((((((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) < (signed_char_Array_0[2])) ? (((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) : (signed_char_Array_0[2]))))) : 1)) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L97] EXPR (((((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) ^ (signed_long_int_Array_0[1] * signed_short_int_Array_0[0])) <= -64) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) && ((unsigned_short_int_Array_0[1] <= ((((signed_long_int_Array_0[0]) < 0 ) ? -(signed_long_int_Array_0[0]) : (signed_long_int_Array_0[0])))) ? (signed_char_Array_0[3] == ((signed char) ((signed_char_Array_0[1] - (1 + signed_char_Array_0[0])) + signed_char_Array_0[2]))) : (signed_char_Array_0[3] == ((signed char) signed_char_Array_0[2])))) && ((2.75f > float_Array_0[0]) ? (signed_char_Array_0[4] == ((signed char) (signed_char_Array_0[2] + signed_char_Array_0[1]))) : (((unsigned_long_int_Array_0[0] - ((((signed_long_int_Array_0[0]) > (signed_char_Array_0[1])) ? (signed_long_int_Array_0[0]) : (signed_char_Array_0[1])))) > unsigned_char_Array_0[1]) ? (signed_char_Array_0[4] == ((signed char) ((((((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) < (signed_char_Array_0[2])) ? (((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) : (signed_char_Array_0[2]))))) : 1)) [L97] EXPR float_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L97] EXPR (2.75f > float_Array_0[0]) ? (signed_char_Array_0[4] == ((signed char) (signed_char_Array_0[2] + signed_char_Array_0[1]))) : (((unsigned_long_int_Array_0[0] - ((((signed_long_int_Array_0[0]) > (signed_char_Array_0[1])) ? (signed_long_int_Array_0[0]) : (signed_char_Array_0[1])))) > unsigned_char_Array_0[1]) ? (signed_char_Array_0[4] == ((signed char) ((((((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) < (signed_char_Array_0[2])) ? (((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) : (signed_char_Array_0[2]))))) : 1) [L97] EXPR signed_char_Array_0[4] [L97] EXPR signed_char_Array_0[2] [L97] EXPR signed_char_Array_0[1] [L97] EXPR (2.75f > float_Array_0[0]) ? (signed_char_Array_0[4] == ((signed char) (signed_char_Array_0[2] + signed_char_Array_0[1]))) : (((unsigned_long_int_Array_0[0] - ((((signed_long_int_Array_0[0]) > (signed_char_Array_0[1])) ? (signed_long_int_Array_0[0]) : (signed_char_Array_0[1])))) > unsigned_char_Array_0[1]) ? (signed_char_Array_0[4] == ((signed char) ((((((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) < (signed_char_Array_0[2])) ? (((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) : (signed_char_Array_0[2]))))) : 1) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L97] EXPR (((((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) ^ (signed_long_int_Array_0[1] * signed_short_int_Array_0[0])) <= -64) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) && ((unsigned_short_int_Array_0[1] <= ((((signed_long_int_Array_0[0]) < 0 ) ? -(signed_long_int_Array_0[0]) : (signed_long_int_Array_0[0])))) ? (signed_char_Array_0[3] == ((signed char) ((signed_char_Array_0[1] - (1 + signed_char_Array_0[0])) + signed_char_Array_0[2]))) : (signed_char_Array_0[3] == ((signed char) signed_char_Array_0[2])))) && ((2.75f > float_Array_0[0]) ? (signed_char_Array_0[4] == ((signed char) (signed_char_Array_0[2] + signed_char_Array_0[1]))) : (((unsigned_long_int_Array_0[0] - ((((signed_long_int_Array_0[0]) > (signed_char_Array_0[1])) ? (signed_long_int_Array_0[0]) : (signed_char_Array_0[1])))) > unsigned_char_Array_0[1]) ? (signed_char_Array_0[4] == ((signed char) ((((((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) < (signed_char_Array_0[2])) ? (((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) : (signed_char_Array_0[2]))))) : 1)) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L97] EXPR ((((((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) ^ (signed_long_int_Array_0[1] * signed_short_int_Array_0[0])) <= -64) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) && ((unsigned_short_int_Array_0[1] <= ((((signed_long_int_Array_0[0]) < 0 ) ? -(signed_long_int_Array_0[0]) : (signed_long_int_Array_0[0])))) ? (signed_char_Array_0[3] == ((signed char) ((signed_char_Array_0[1] - (1 + signed_char_Array_0[0])) + signed_char_Array_0[2]))) : (signed_char_Array_0[3] == ((signed char) signed_char_Array_0[2])))) && ((2.75f > float_Array_0[0]) ? (signed_char_Array_0[4] == ((signed char) (signed_char_Array_0[2] + signed_char_Array_0[1]))) : (((unsigned_long_int_Array_0[0] - ((((signed_long_int_Array_0[0]) > (signed_char_Array_0[1])) ? (signed_long_int_Array_0[0]) : (signed_char_Array_0[1])))) > unsigned_char_Array_0[1]) ? (signed_char_Array_0[4] == ((signed char) ((((((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) < (signed_char_Array_0[2])) ? (((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) : (signed_char_Array_0[2]))))) : 1))) && (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1])) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L97] EXPR ((((((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) ^ (signed_long_int_Array_0[1] * signed_short_int_Array_0[0])) <= -64) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) && ((unsigned_short_int_Array_0[1] <= ((((signed_long_int_Array_0[0]) < 0 ) ? -(signed_long_int_Array_0[0]) : (signed_long_int_Array_0[0])))) ? (signed_char_Array_0[3] == ((signed char) ((signed_char_Array_0[1] - (1 + signed_char_Array_0[0])) + signed_char_Array_0[2]))) : (signed_char_Array_0[3] == ((signed char) signed_char_Array_0[2])))) && ((2.75f > float_Array_0[0]) ? (signed_char_Array_0[4] == ((signed char) (signed_char_Array_0[2] + signed_char_Array_0[1]))) : (((unsigned_long_int_Array_0[0] - ((((signed_long_int_Array_0[0]) > (signed_char_Array_0[1])) ? (signed_long_int_Array_0[0]) : (signed_char_Array_0[1])))) > unsigned_char_Array_0[1]) ? (signed_char_Array_0[4] == ((signed char) ((((((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) < (signed_char_Array_0[2])) ? (((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) : (signed_char_Array_0[2]))))) : 1))) && (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1])) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L97] EXPR (((((((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) ^ (signed_long_int_Array_0[1] * signed_short_int_Array_0[0])) <= -64) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) && ((unsigned_short_int_Array_0[1] <= ((((signed_long_int_Array_0[0]) < 0 ) ? -(signed_long_int_Array_0[0]) : (signed_long_int_Array_0[0])))) ? (signed_char_Array_0[3] == ((signed char) ((signed_char_Array_0[1] - (1 + signed_char_Array_0[0])) + signed_char_Array_0[2]))) : (signed_char_Array_0[3] == ((signed char) signed_char_Array_0[2])))) && ((2.75f > float_Array_0[0]) ? (signed_char_Array_0[4] == ((signed char) (signed_char_Array_0[2] + signed_char_Array_0[1]))) : (((unsigned_long_int_Array_0[0] - ((((signed_long_int_Array_0[0]) > (signed_char_Array_0[1])) ? (signed_long_int_Array_0[0]) : (signed_char_Array_0[1])))) > unsigned_char_Array_0[1]) ? (signed_char_Array_0[4] == ((signed char) ((((((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) < (signed_char_Array_0[2])) ? (((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) : (signed_char_Array_0[2]))))) : 1))) && (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1]))) && (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[0])) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L97] EXPR (((((((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) ^ (signed_long_int_Array_0[1] * signed_short_int_Array_0[0])) <= -64) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) && ((unsigned_short_int_Array_0[1] <= ((((signed_long_int_Array_0[0]) < 0 ) ? -(signed_long_int_Array_0[0]) : (signed_long_int_Array_0[0])))) ? (signed_char_Array_0[3] == ((signed char) ((signed_char_Array_0[1] - (1 + signed_char_Array_0[0])) + signed_char_Array_0[2]))) : (signed_char_Array_0[3] == ((signed char) signed_char_Array_0[2])))) && ((2.75f > float_Array_0[0]) ? (signed_char_Array_0[4] == ((signed char) (signed_char_Array_0[2] + signed_char_Array_0[1]))) : (((unsigned_long_int_Array_0[0] - ((((signed_long_int_Array_0[0]) > (signed_char_Array_0[1])) ? (signed_long_int_Array_0[0]) : (signed_char_Array_0[1])))) > unsigned_char_Array_0[1]) ? (signed_char_Array_0[4] == ((signed char) ((((((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) < (signed_char_Array_0[2])) ? (((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) : (signed_char_Array_0[2]))))) : 1))) && (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1]))) && (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[0])) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L97] EXPR ((((((((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) ^ (signed_long_int_Array_0[1] * signed_short_int_Array_0[0])) <= -64) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) && ((unsigned_short_int_Array_0[1] <= ((((signed_long_int_Array_0[0]) < 0 ) ? -(signed_long_int_Array_0[0]) : (signed_long_int_Array_0[0])))) ? (signed_char_Array_0[3] == ((signed char) ((signed_char_Array_0[1] - (1 + signed_char_Array_0[0])) + signed_char_Array_0[2]))) : (signed_char_Array_0[3] == ((signed char) signed_char_Array_0[2])))) && ((2.75f > float_Array_0[0]) ? (signed_char_Array_0[4] == ((signed char) (signed_char_Array_0[2] + signed_char_Array_0[1]))) : (((unsigned_long_int_Array_0[0] - ((((signed_long_int_Array_0[0]) > (signed_char_Array_0[1])) ? (signed_long_int_Array_0[0]) : (signed_char_Array_0[1])))) > unsigned_char_Array_0[1]) ? (signed_char_Array_0[4] == ((signed char) ((((((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) < (signed_char_Array_0[2])) ? (((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) : (signed_char_Array_0[2]))))) : 1))) && (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1]))) && (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[0]))) && (signed_short_int_Array_0[0] == ((signed short int) signed_long_int_Array_0[0])) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L97] EXPR ((((((((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) ^ (signed_long_int_Array_0[1] * signed_short_int_Array_0[0])) <= -64) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) && ((unsigned_short_int_Array_0[1] <= ((((signed_long_int_Array_0[0]) < 0 ) ? -(signed_long_int_Array_0[0]) : (signed_long_int_Array_0[0])))) ? (signed_char_Array_0[3] == ((signed char) ((signed_char_Array_0[1] - (1 + signed_char_Array_0[0])) + signed_char_Array_0[2]))) : (signed_char_Array_0[3] == ((signed char) signed_char_Array_0[2])))) && ((2.75f > float_Array_0[0]) ? (signed_char_Array_0[4] == ((signed char) (signed_char_Array_0[2] + signed_char_Array_0[1]))) : (((unsigned_long_int_Array_0[0] - ((((signed_long_int_Array_0[0]) > (signed_char_Array_0[1])) ? (signed_long_int_Array_0[0]) : (signed_char_Array_0[1])))) > unsigned_char_Array_0[1]) ? (signed_char_Array_0[4] == ((signed char) ((((((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) < (signed_char_Array_0[2])) ? (((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) : (signed_char_Array_0[2]))))) : 1))) && (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1]))) && (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[0]))) && (signed_short_int_Array_0[0] == ((signed short int) signed_long_int_Array_0[0])) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L97-L98] return ((((((((unsigned_short_int_Array_0[1] - unsigned_short_int_Array_0[0]) ^ (signed_long_int_Array_0[1] * signed_short_int_Array_0[0])) <= -64) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0]))) && ((unsigned_short_int_Array_0[1] <= ((((signed_long_int_Array_0[0]) < 0 ) ? -(signed_long_int_Array_0[0]) : (signed_long_int_Array_0[0])))) ? (signed_char_Array_0[3] == ((signed char) ((signed_char_Array_0[1] - (1 + signed_char_Array_0[0])) + signed_char_Array_0[2]))) : (signed_char_Array_0[3] == ((signed char) signed_char_Array_0[2])))) && ((2.75f > float_Array_0[0]) ? (signed_char_Array_0[4] == ((signed char) (signed_char_Array_0[2] + signed_char_Array_0[1]))) : (((unsigned_long_int_Array_0[0] - ((((signed_long_int_Array_0[0]) > (signed_char_Array_0[1])) ? (signed_long_int_Array_0[0]) : (signed_char_Array_0[1])))) > unsigned_char_Array_0[1]) ? (signed_char_Array_0[4] == ((signed char) ((((((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) < (signed_char_Array_0[2])) ? (((((signed_char_Array_0[1]) < ((1 + 5))) ? (signed_char_Array_0[1]) : ((1 + 5))))) : (signed_char_Array_0[2]))))) : 1))) && (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1]))) && (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[0]))) && (signed_short_int_Array_0[0] == ((signed short int) signed_long_int_Array_0[0])) ; [L107] RET, EXPR property() [L107] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] [L19] reach_error() VAL [float_Array_0={4:0}, isInitial=1, signed_char_Array_0={5:0}, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_long_int_Array_0={9:0}, unsigned_short_int_Array_0={10:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 30.3s, OverallIterations: 18, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2741 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2735 mSDsluCounter, 10697 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8349 mSDsCounter, 704 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4207 IncrementalHoareTripleChecker+Invalid, 4911 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 704 mSolverCounterUnsat, 2348 mSDtfsCounter, 4207 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1693 GetRequests, 1488 SyntacticMatches, 3 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1220 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=17, InterpolantAutomatonStates: 145, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 17 MinimizatonAttempts, 220 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 15.8s InterpolantComputationTime, 3110 NumberOfCodeBlocks, 3110 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 2932 ConstructedInterpolants, 1 QuantifiedInterpolants, 14139 SizeOfPredicates, 48 NumberOfNonLiveVariables, 2545 ConjunctsInSsa, 125 ConjunctsInUnsatCore, 23 InterpolantComputations, 14 PerfectInterpolantSequences, 9450/9660 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 18:51:07,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX --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 90de0053d184a453dc3a33f57409c1c246f48963f5fd9431c484b6f29206cf7b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:51:10,220 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:51:10,326 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 18:51:10,334 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:51:10,335 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:51:10,371 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:51:10,372 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:51:10,372 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:51:10,373 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:51:10,374 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:51:10,375 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:51:10,375 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:51:10,376 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:51:10,376 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:51:10,378 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:51:10,379 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:51:10,379 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:51:10,380 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:51:10,380 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:51:10,380 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:51:10,384 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:51:10,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:51:10,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:51:10,385 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:51:10,386 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:51:10,386 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:51:10,386 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:51:10,386 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:51:10,387 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:51:10,387 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:51:10,387 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:51:10,388 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:51:10,390 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:51:10,390 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:51:10,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:51:10,391 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:51:10,391 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:51:10,392 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:51:10,393 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:51:10,393 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:51:10,393 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:51:10,394 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:51:10,394 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:51:10,394 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:51:10,394 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_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90de0053d184a453dc3a33f57409c1c246f48963f5fd9431c484b6f29206cf7b [2024-11-08 18:51:10,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:51:10,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:51:10,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:51:10,852 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:51:10,853 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:51:10,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-37.i Unable to find full path for "g++" [2024-11-08 18:51:12,911 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:51:13,237 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:51:13,237 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-37.i [2024-11-08 18:51:13,252 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/data/ffab54e25/414a940227fc473cb7b7aace79b7ef58/FLAGd0add448b [2024-11-08 18:51:13,479 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/data/ffab54e25/414a940227fc473cb7b7aace79b7ef58 [2024-11-08 18:51:13,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:51:13,486 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:51:13,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:51:13,489 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:51:13,496 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:51:13,496 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:51:13" (1/1) ... [2024-11-08 18:51:13,497 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2da35585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:51:13, skipping insertion in model container [2024-11-08 18:51:13,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:51:13" (1/1) ... [2024-11-08 18:51:13,535 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:51:13,747 WARN L250 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_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-37.i[916,929] [2024-11-08 18:51:13,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:51:13,881 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:51:13,899 WARN L250 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_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-37.i[916,929] [2024-11-08 18:51:13,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:51:13,988 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:51:13,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:51:13 WrapperNode [2024-11-08 18:51:13,988 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:51:13,989 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:51:13,990 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:51:13,990 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:51:13,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:51:13" (1/1) ... [2024-11-08 18:51:14,015 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:51:13" (1/1) ... [2024-11-08 18:51:14,058 INFO L138 Inliner]: procedures = 36, calls = 157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 452 [2024-11-08 18:51:14,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:51:14,060 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:51:14,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:51:14,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:51:14,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:51:13" (1/1) ... [2024-11-08 18:51:14,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:51:13" (1/1) ... [2024-11-08 18:51:14,082 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:51:13" (1/1) ... [2024-11-08 18:51:14,105 INFO L175 MemorySlicer]: Split 124 memory accesses to 8 slices as follows [2, 8, 52, 20, 7, 15, 6, 14]. 42 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 1, 5, 2, 1, 2, 1, 2]. The 17 writes are split as follows [0, 1, 7, 2, 1, 3, 1, 2]. [2024-11-08 18:51:14,105 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:51:13" (1/1) ... [2024-11-08 18:51:14,106 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:51:13" (1/1) ... [2024-11-08 18:51:14,133 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:51:13" (1/1) ... [2024-11-08 18:51:14,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:51:13" (1/1) ... [2024-11-08 18:51:14,142 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:51:13" (1/1) ... [2024-11-08 18:51:14,145 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:51:13" (1/1) ... [2024-11-08 18:51:14,153 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:51:14,154 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:51:14,158 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:51:14,158 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:51:14,159 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:51:13" (1/1) ... [2024-11-08 18:51:14,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:51:14,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:51:14,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:51:14,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:51:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:51:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-08 18:51:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-08 18:51:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-08 18:51:14,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-08 18:51:14,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-08 18:51:14,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-08 18:51:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2024-11-08 18:51:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2024-11-08 18:51:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-11-08 18:51:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-11-08 18:51:14,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-11-08 18:51:14,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-11-08 18:51:14,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-11-08 18:51:14,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2024-11-08 18:51:14,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#6 [2024-11-08 18:51:14,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#7 [2024-11-08 18:51:14,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 18:51:14,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 18:51:14,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 18:51:14,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-08 18:51:14,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-08 18:51:14,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-08 18:51:14,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-08 18:51:14,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-08 18:51:14,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-08 18:51:14,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-08 18:51:14,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-08 18:51:14,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-08 18:51:14,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-08 18:51:14,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-08 18:51:14,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-08 18:51:14,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-11-08 18:51:14,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-08 18:51:14,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-08 18:51:14,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-08 18:51:14,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-08 18:51:14,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-08 18:51:14,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-08 18:51:14,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-08 18:51:14,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-08 18:51:14,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 18:51:14,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 18:51:14,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 18:51:14,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-08 18:51:14,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-08 18:51:14,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-08 18:51:14,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-08 18:51:14,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-08 18:51:14,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-08 18:51:14,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-08 18:51:14,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-11-08 18:51:14,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-11-08 18:51:14,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-11-08 18:51:14,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2024-11-08 18:51:14,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#6 [2024-11-08 18:51:14,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#7 [2024-11-08 18:51:14,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-08 18:51:14,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-08 18:51:14,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-08 18:51:14,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-08 18:51:14,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-08 18:51:14,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-08 18:51:14,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-08 18:51:14,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-08 18:51:14,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-08 18:51:14,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-08 18:51:14,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-08 18:51:14,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-08 18:51:14,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-08 18:51:14,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-08 18:51:14,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-11-08 18:51:14,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-11-08 18:51:14,261 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 18:51:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 18:51:14,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:51:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:51:14,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-08 18:51:14,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-08 18:51:14,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-08 18:51:14,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-08 18:51:14,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-08 18:51:14,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-08 18:51:14,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-11-08 18:51:14,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2024-11-08 18:51:14,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-08 18:51:14,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-08 18:51:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-11-08 18:51:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-11-08 18:51:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-11-08 18:51:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2024-11-08 18:51:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#6 [2024-11-08 18:51:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#7 [2024-11-08 18:51:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 18:51:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 18:51:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-08 18:51:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-08 18:51:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-08 18:51:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-08 18:51:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-08 18:51:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-08 18:51:14,497 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:51:14,500 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:51:15,197 INFO L? ?]: Removed 114 outVars from TransFormulas that were not future-live. [2024-11-08 18:51:15,197 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:51:15,211 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:51:15,211 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:51:15,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:51:15 BoogieIcfgContainer [2024-11-08 18:51:15,212 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:51:15,214 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:51:15,214 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:51:15,217 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:51:15,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:51:13" (1/3) ... [2024-11-08 18:51:15,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b8b4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:51:15, skipping insertion in model container [2024-11-08 18:51:15,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:51:13" (2/3) ... [2024-11-08 18:51:15,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b8b4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:51:15, skipping insertion in model container [2024-11-08 18:51:15,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:51:15" (3/3) ... [2024-11-08 18:51:15,220 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-37.i [2024-11-08 18:51:15,239 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:51:15,240 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:51:15,301 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:51:15,307 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;@3495d9ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:51:15,307 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:51:15,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 80 states have internal predecessors, (110), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 18:51:15,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 18:51:15,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:51:15,328 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:51:15,329 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:51:15,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:51:15,336 INFO L85 PathProgramCache]: Analyzing trace with hash -307622603, now seen corresponding path program 1 times [2024-11-08 18:51:15,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:51:15,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071046825] [2024-11-08 18:51:15,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:15,355 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:51:15,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:51:15,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:51:15,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-08 18:51:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:15,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 18:51:15,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:51:15,858 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-08 18:51:15,859 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:51:15,860 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:51:15,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071046825] [2024-11-08 18:51:15,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1071046825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:51:15,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:51:15,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:51:15,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214271102] [2024-11-08 18:51:15,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:51:15,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:51:15,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:51:15,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:51:15,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:51:15,904 INFO L87 Difference]: Start difference. First operand has 97 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 80 states have internal predecessors, (110), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 18:51:15,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:51:15,946 INFO L93 Difference]: Finished difference Result 187 states and 289 transitions. [2024-11-08 18:51:15,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:51:15,948 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 122 [2024-11-08 18:51:15,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:51:15,958 INFO L225 Difference]: With dead ends: 187 [2024-11-08 18:51:15,959 INFO L226 Difference]: Without dead ends: 93 [2024-11-08 18:51:15,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:51:15,968 INFO L432 NwaCegarLoop]: 133 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, 133 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 [2024-11-08 18:51:15,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:51:15,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-08 18:51:16,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-08 18:51:16,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 76 states have (on average 1.355263157894737) internal successors, (103), 76 states have internal predecessors, (103), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 18:51:16,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2024-11-08 18:51:16,025 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 122 [2024-11-08 18:51:16,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:51:16,027 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2024-11-08 18:51:16,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 18:51:16,028 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2024-11-08 18:51:16,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 18:51:16,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:51:16,032 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:51:16,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-08 18:51:16,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:51:16,237 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:51:16,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:51:16,238 INFO L85 PathProgramCache]: Analyzing trace with hash -57155625, now seen corresponding path program 1 times [2024-11-08 18:51:16,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:51:16,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428695736] [2024-11-08 18:51:16,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:16,239 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:51:16,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:51:16,243 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:51:16,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-08 18:51:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:16,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:51:16,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:51:16,753 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:51:16,753 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:51:16,753 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:51:16,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428695736] [2024-11-08 18:51:16,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1428695736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:51:16,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:51:16,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:51:16,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158468583] [2024-11-08 18:51:16,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:51:16,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:51:16,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:51:16,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:51:16,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:51:16,759 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:51:16,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:51:16,829 INFO L93 Difference]: Finished difference Result 188 states and 270 transitions. [2024-11-08 18:51:16,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:51:16,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2024-11-08 18:51:16,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:51:16,833 INFO L225 Difference]: With dead ends: 188 [2024-11-08 18:51:16,833 INFO L226 Difference]: Without dead ends: 98 [2024-11-08 18:51:16,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:51:16,835 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 1 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:51:16,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 496 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:51:16,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-08 18:51:16,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2024-11-08 18:51:16,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 80 states have (on average 1.3375) internal successors, (107), 80 states have internal predecessors, (107), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 18:51:16,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 137 transitions. [2024-11-08 18:51:16,847 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 137 transitions. Word has length 122 [2024-11-08 18:51:16,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:51:16,849 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 137 transitions. [2024-11-08 18:51:16,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:51:16,850 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 137 transitions. [2024-11-08 18:51:16,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 18:51:16,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:51:16,852 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:51:16,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-08 18:51:17,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:51:17,057 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:51:17,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:51:17,057 INFO L85 PathProgramCache]: Analyzing trace with hash 622902745, now seen corresponding path program 1 times [2024-11-08 18:51:17,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:51:17,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1923509841] [2024-11-08 18:51:17,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:17,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:51:17,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:51:17,061 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:51:17,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-08 18:51:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:17,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:51:17,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:51:17,465 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:51:17,465 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:51:17,466 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:51:17,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1923509841] [2024-11-08 18:51:17,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1923509841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:51:17,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:51:17,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:51:17,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712158612] [2024-11-08 18:51:17,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:51:17,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:51:17,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:51:17,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:51:17,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:51:17,469 INFO L87 Difference]: Start difference. First operand 97 states and 137 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:51:17,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:51:17,543 INFO L93 Difference]: Finished difference Result 194 states and 275 transitions. [2024-11-08 18:51:17,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:51:17,544 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2024-11-08 18:51:17,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:51:17,546 INFO L225 Difference]: With dead ends: 194 [2024-11-08 18:51:17,546 INFO L226 Difference]: Without dead ends: 100 [2024-11-08 18:51:17,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:51:17,548 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 1 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:51:17,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 610 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:51:17,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-08 18:51:17,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 99. [2024-11-08 18:51:17,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 82 states have (on average 1.329268292682927) internal successors, (109), 82 states have internal predecessors, (109), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 18:51:17,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 139 transitions. [2024-11-08 18:51:17,559 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 139 transitions. Word has length 122 [2024-11-08 18:51:17,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:51:17,560 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 139 transitions. [2024-11-08 18:51:17,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:51:17,561 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 139 transitions. [2024-11-08 18:51:17,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 18:51:17,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:51:17,563 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:51:17,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-08 18:51:17,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:51:17,763 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:51:17,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:51:17,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1897057189, now seen corresponding path program 1 times [2024-11-08 18:51:17,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:51:17,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [852788993] [2024-11-08 18:51:17,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:17,765 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:51:17,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:51:17,769 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:51:17,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-08 18:51:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:18,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:51:18,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:51:18,166 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:51:18,166 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:51:18,166 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:51:18,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [852788993] [2024-11-08 18:51:18,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [852788993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:51:18,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:51:18,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:51:18,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724229059] [2024-11-08 18:51:18,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:51:18,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:51:18,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:51:18,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:51:18,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:51:18,169 INFO L87 Difference]: Start difference. First operand 99 states and 139 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:51:18,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:51:18,275 INFO L93 Difference]: Finished difference Result 198 states and 279 transitions. [2024-11-08 18:51:18,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:51:18,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2024-11-08 18:51:18,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:51:18,279 INFO L225 Difference]: With dead ends: 198 [2024-11-08 18:51:18,279 INFO L226 Difference]: Without dead ends: 102 [2024-11-08 18:51:18,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:51:18,281 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 1 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:51:18,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 725 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:51:18,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-08 18:51:18,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2024-11-08 18:51:18,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 84 states have (on average 1.3214285714285714) internal successors, (111), 84 states have internal predecessors, (111), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 18:51:18,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 141 transitions. [2024-11-08 18:51:18,299 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 141 transitions. Word has length 122 [2024-11-08 18:51:18,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:51:18,302 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 141 transitions. [2024-11-08 18:51:18,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:51:18,303 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 141 transitions. [2024-11-08 18:51:18,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 18:51:18,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:51:18,308 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:51:18,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-08 18:51:18,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:51:18,509 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:51:18,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:51:18,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1895210147, now seen corresponding path program 1 times [2024-11-08 18:51:18,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:51:18,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840675844] [2024-11-08 18:51:18,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:18,511 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:51:18,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:51:18,514 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:51:18,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-08 18:51:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:18,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 18:51:18,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:51:19,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2024-11-08 18:51:19,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:51:19,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 18:51:19,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-08 18:51:19,252 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 92 proven. 3 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-08 18:51:19,253 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:51:19,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2024-11-08 18:51:19,514 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:51:19,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1840675844] [2024-11-08 18:51:19,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1840675844] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:51:19,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805082128] [2024-11-08 18:51:19,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:19,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:51:19,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:51:19,519 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:51:19,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:51:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:19,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:51:19,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:51:19,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-08 18:51:20,623 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:51:20,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 15 [2024-11-08 18:51:20,692 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 192 proven. 33 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-08 18:51:20,692 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:51:21,158 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-08 18:51:21,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805082128] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:51:21,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:51:21,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 17 [2024-11-08 18:51:21,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942236233] [2024-11-08 18:51:21,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:51:21,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 18:51:21,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:51:21,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 18:51:21,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:51:21,166 INFO L87 Difference]: Start difference. First operand 101 states and 141 transitions. Second operand has 17 states, 14 states have (on average 6.857142857142857) internal successors, (96), 17 states have internal predecessors, (96), 7 states have call successors, (39), 4 states have call predecessors, (39), 6 states have return successors, (39), 4 states have call predecessors, (39), 7 states have call successors, (39) [2024-11-08 18:51:23,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:51:23,541 INFO L93 Difference]: Finished difference Result 213 states and 290 transitions. [2024-11-08 18:51:23,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 18:51:23,543 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 6.857142857142857) internal successors, (96), 17 states have internal predecessors, (96), 7 states have call successors, (39), 4 states have call predecessors, (39), 6 states have return successors, (39), 4 states have call predecessors, (39), 7 states have call successors, (39) Word has length 122 [2024-11-08 18:51:23,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:51:23,545 INFO L225 Difference]: With dead ends: 213 [2024-11-08 18:51:23,545 INFO L226 Difference]: Without dead ends: 115 [2024-11-08 18:51:23,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 370 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=235, Invalid=1097, Unknown=0, NotChecked=0, Total=1332 [2024-11-08 18:51:23,547 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 334 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:51:23,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 662 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 18:51:23,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-08 18:51:23,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2024-11-08 18:51:23,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 93 states have (on average 1.2795698924731183) internal successors, (119), 93 states have internal predecessors, (119), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 18:51:23,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 149 transitions. [2024-11-08 18:51:23,565 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 149 transitions. Word has length 122 [2024-11-08 18:51:23,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:51:23,566 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 149 transitions. [2024-11-08 18:51:23,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 6.857142857142857) internal successors, (96), 17 states have internal predecessors, (96), 7 states have call successors, (39), 4 states have call predecessors, (39), 6 states have return successors, (39), 4 states have call predecessors, (39), 7 states have call successors, (39) [2024-11-08 18:51:23,566 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 149 transitions. [2024-11-08 18:51:23,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 18:51:23,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:51:23,569 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:51:23,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-08 18:51:23,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 18:51:23,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:51:23,970 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:51:23,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:51:23,971 INFO L85 PathProgramCache]: Analyzing trace with hash 594318815, now seen corresponding path program 1 times [2024-11-08 18:51:23,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:51:23,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44328324] [2024-11-08 18:51:23,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:23,972 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:51:23,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:51:23,975 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:51:23,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-08 18:51:24,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:24,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 18:51:24,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:51:24,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2024-11-08 18:51:24,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:51:24,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 18:51:24,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-08 18:51:24,572 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 92 proven. 3 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-08 18:51:24,572 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:51:24,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-08 18:51:24,786 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:51:24,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44328324] [2024-11-08 18:51:24,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44328324] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:51:24,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042907486] [2024-11-08 18:51:24,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:24,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:51:24,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:51:24,789 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:51:24,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 18:51:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:25,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 18:51:25,019 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:51:25,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2024-11-08 18:51:25,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:51:25,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 18:51:25,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-08 18:51:25,259 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 92 proven. 3 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-08 18:51:25,260 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:51:25,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-08 18:51:25,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042907486] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:51:25,373 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:51:25,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2024-11-08 18:51:25,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767258332] [2024-11-08 18:51:25,373 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:51:25,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:51:25,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:51:25,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:51:25,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:51:25,375 INFO L87 Difference]: Start difference. First operand 113 states and 149 transitions. Second operand has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-08 18:51:26,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:51:26,113 INFO L93 Difference]: Finished difference Result 225 states and 297 transitions. [2024-11-08 18:51:26,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 18:51:26,114 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 122 [2024-11-08 18:51:26,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:51:26,115 INFO L225 Difference]: With dead ends: 225 [2024-11-08 18:51:26,115 INFO L226 Difference]: Without dead ends: 115 [2024-11-08 18:51:26,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 281 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:51:26,117 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 105 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:51:26,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 642 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:51:26,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-08 18:51:26,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2024-11-08 18:51:26,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 93 states have (on average 1.2688172043010753) internal successors, (118), 93 states have internal predecessors, (118), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 18:51:26,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 148 transitions. [2024-11-08 18:51:26,133 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 148 transitions. Word has length 122 [2024-11-08 18:51:26,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:51:26,134 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 148 transitions. [2024-11-08 18:51:26,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-08 18:51:26,134 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 148 transitions. [2024-11-08 18:51:26,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 18:51:26,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:51:26,136 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:51:26,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 18:51:26,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-08 18:51:26,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:51:26,537 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:51:26,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:51:26,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1017020641, now seen corresponding path program 1 times [2024-11-08 18:51:26,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:51:26,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701771953] [2024-11-08 18:51:26,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:26,539 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:51:26,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:51:26,540 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:51:26,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-08 18:51:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:26,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-08 18:51:26,894 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:51:26,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:51:27,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2024-11-08 18:51:27,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 18:51:28,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-08 18:51:28,676 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:51:28,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 28 [2024-11-08 18:51:28,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:51:28,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-08 18:51:28,986 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:51:28,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 19 [2024-11-08 18:51:29,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2024-11-08 18:51:29,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-08 18:51:29,144 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 260 proven. 54 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-08 18:51:29,144 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:51:34,700 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:51:34,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701771953] [2024-11-08 18:51:34,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701771953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:51:34,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142379810] [2024-11-08 18:51:34,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:34,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:51:34,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:51:34,703 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:51:34,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 18:51:34,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:34,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:51:34,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:51:35,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2024-11-08 18:51:35,824 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:51:35,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 35 [2024-11-08 18:51:36,133 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 201 proven. 57 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-08 18:51:36,133 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:51:36,593 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:51:36,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142379810] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:51:36,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:51:36,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [21, 10] total 29 [2024-11-08 18:51:36,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931878127] [2024-11-08 18:51:36,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:51:36,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:51:36,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:51:36,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:51:36,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1170, Unknown=0, NotChecked=0, Total=1332 [2024-11-08 18:51:36,597 INFO L87 Difference]: Start difference. First operand 113 states and 148 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:51:37,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:51:37,036 INFO L93 Difference]: Finished difference Result 254 states and 331 transitions. [2024-11-08 18:51:37,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:51:37,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2024-11-08 18:51:37,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:51:37,038 INFO L225 Difference]: With dead ends: 254 [2024-11-08 18:51:37,038 INFO L226 Difference]: Without dead ends: 144 [2024-11-08 18:51:37,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=170, Invalid=1312, Unknown=0, NotChecked=0, Total=1482 [2024-11-08 18:51:37,040 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 92 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:51:37,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 526 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:51:37,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-08 18:51:37,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 143. [2024-11-08 18:51:37,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 113 states have (on average 1.238938053097345) internal successors, (140), 114 states have internal predecessors, (140), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-08 18:51:37,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 184 transitions. [2024-11-08 18:51:37,073 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 184 transitions. Word has length 122 [2024-11-08 18:51:37,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:51:37,074 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 184 transitions. [2024-11-08 18:51:37,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:51:37,074 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 184 transitions. [2024-11-08 18:51:37,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 18:51:37,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:51:37,079 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:51:37,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-08 18:51:37,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-08 18:51:37,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:51:37,480 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:51:37,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:51:37,481 INFO L85 PathProgramCache]: Analyzing trace with hash -131803543, now seen corresponding path program 1 times [2024-11-08 18:51:37,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:51:37,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [232729909] [2024-11-08 18:51:37,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:37,481 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:51:37,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:51:37,482 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:51:37,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-08 18:51:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:37,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-08 18:51:37,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:51:37,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:51:38,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2024-11-08 18:51:38,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:51:39,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-08 18:51:39,858 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:51:39,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 28 [2024-11-08 18:51:39,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:51:39,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-08 18:51:40,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2024-11-08 18:51:40,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-08 18:51:40,200 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:51:40,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 23 [2024-11-08 18:51:40,299 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 260 proven. 54 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-08 18:51:40,299 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:51:45,817 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:51:45,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [232729909] [2024-11-08 18:51:45,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [232729909] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:51:45,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553982005] [2024-11-08 18:51:45,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:45,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:51:45,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:51:45,819 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:51:45,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 18:51:46,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:46,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:51:46,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:51:46,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2024-11-08 18:51:46,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2024-11-08 18:51:46,538 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:51:46,538 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:51:46,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553982005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:51:46,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:51:46,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [22] total 25 [2024-11-08 18:51:46,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192748229] [2024-11-08 18:51:46,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:51:46,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:51:46,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:51:46,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:51:46,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=894, Unknown=0, NotChecked=0, Total=1056 [2024-11-08 18:51:46,540 INFO L87 Difference]: Start difference. First operand 143 states and 184 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:51:46,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:51:46,852 INFO L93 Difference]: Finished difference Result 281 states and 361 transitions. [2024-11-08 18:51:46,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:51:46,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 125 [2024-11-08 18:51:46,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:51:46,854 INFO L225 Difference]: With dead ends: 281 [2024-11-08 18:51:46,854 INFO L226 Difference]: Without dead ends: 169 [2024-11-08 18:51:46,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=166, Invalid=956, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 18:51:46,856 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 115 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:51:46,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 550 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:51:46,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-08 18:51:46,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 167. [2024-11-08 18:51:46,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 127 states have (on average 1.204724409448819) internal successors, (153), 128 states have internal predecessors, (153), 30 states have call successors, (30), 9 states have call predecessors, (30), 9 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-08 18:51:46,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 213 transitions. [2024-11-08 18:51:46,882 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 213 transitions. Word has length 125 [2024-11-08 18:51:46,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:51:46,883 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 213 transitions. [2024-11-08 18:51:46,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:51:46,883 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 213 transitions. [2024-11-08 18:51:46,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 18:51:46,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:51:46,885 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:51:46,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-08 18:51:47,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-08 18:51:47,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:51:47,286 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:51:47,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:51:47,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1411667221, now seen corresponding path program 1 times [2024-11-08 18:51:47,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:51:47,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584195686] [2024-11-08 18:51:47,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:47,287 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:51:47,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:51:47,288 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:51:47,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-08 18:51:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:47,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-08 18:51:47,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:51:47,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:51:47,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-11-08 18:51:48,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:51:48,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-08 18:51:48,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-08 18:51:48,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2024-11-08 18:51:48,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:51:49,120 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:51:49,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 19 [2024-11-08 18:51:49,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2024-11-08 18:51:49,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-08 18:51:49,281 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 260 proven. 54 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-08 18:51:49,281 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:51:55,455 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:51:55,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584195686] [2024-11-08 18:51:55,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1584195686] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:51:55,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129637972] [2024-11-08 18:51:55,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:55,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:51:55,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:51:55,457 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:51:55,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-08 18:51:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:55,696 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 18:51:55,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:51:56,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2024-11-08 18:51:56,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:51:56,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 17 [2024-11-08 18:51:56,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-08 18:51:56,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 18:51:57,143 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 92 proven. 3 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-08 18:51:57,143 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:51:57,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-08 18:51:58,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129637972] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:51:58,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:51:58,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10] total 26 [2024-11-08 18:51:58,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111680797] [2024-11-08 18:51:58,288 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:51:58,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-08 18:51:58,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:51:58,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-08 18:51:58,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1309, Unknown=0, NotChecked=0, Total=1482 [2024-11-08 18:51:58,291 INFO L87 Difference]: Start difference. First operand 167 states and 213 transitions. Second operand has 26 states, 21 states have (on average 4.809523809523809) internal successors, (101), 24 states have internal predecessors, (101), 9 states have call successors, (27), 6 states have call predecessors, (27), 8 states have return successors, (27), 6 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-08 18:52:06,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:52:09,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:09,248 INFO L93 Difference]: Finished difference Result 299 states and 374 transitions. [2024-11-08 18:52:09,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-08 18:52:09,249 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 21 states have (on average 4.809523809523809) internal successors, (101), 24 states have internal predecessors, (101), 9 states have call successors, (27), 6 states have call predecessors, (27), 8 states have return successors, (27), 6 states have call predecessors, (27), 9 states have call successors, (27) Word has length 125 [2024-11-08 18:52:09,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:09,252 INFO L225 Difference]: With dead ends: 299 [2024-11-08 18:52:09,252 INFO L226 Difference]: Without dead ends: 187 [2024-11-08 18:52:09,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1501 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=985, Invalid=5495, Unknown=0, NotChecked=0, Total=6480 [2024-11-08 18:52:09,255 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 272 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 1534 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 1639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:09,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 1011 Invalid, 1639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1534 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-08 18:52:09,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-08 18:52:09,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 179. [2024-11-08 18:52:09,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 136 states have (on average 1.1764705882352942) internal successors, (160), 137 states have internal predecessors, (160), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-08 18:52:09,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 220 transitions. [2024-11-08 18:52:09,298 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 220 transitions. Word has length 125 [2024-11-08 18:52:09,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:09,298 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 220 transitions. [2024-11-08 18:52:09,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 21 states have (on average 4.809523809523809) internal successors, (101), 24 states have internal predecessors, (101), 9 states have call successors, (27), 6 states have call predecessors, (27), 8 states have return successors, (27), 6 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-08 18:52:09,300 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 220 transitions. [2024-11-08 18:52:09,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 18:52:09,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:09,302 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:09,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2024-11-08 18:52:09,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-08 18:52:09,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:52:09,703 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:52:09,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:09,704 INFO L85 PathProgramCache]: Analyzing trace with hash 2091037543, now seen corresponding path program 1 times [2024-11-08 18:52:09,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:52:09,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762192392] [2024-11-08 18:52:09,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:09,704 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:09,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:52:09,705 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:52:09,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-08 18:52:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:10,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 18:52:10,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:10,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-08 18:52:10,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2024-11-08 18:52:10,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:52:10,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 41 [2024-11-08 18:52:10,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 56 [2024-11-08 18:52:10,835 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:52:10,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 49 [2024-11-08 18:52:10,859 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:52:10,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 30 [2024-11-08 18:52:11,157 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:52:11,158 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:52:11,158 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:52:11,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1762192392] [2024-11-08 18:52:11,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1762192392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:11,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:11,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:52:11,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768098341] [2024-11-08 18:52:11,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:11,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:52:11,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:52:11,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:52:11,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:52:11,161 INFO L87 Difference]: Start difference. First operand 179 states and 220 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:13,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:13,130 INFO L93 Difference]: Finished difference Result 301 states and 370 transitions. [2024-11-08 18:52:13,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:52:13,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 125 [2024-11-08 18:52:13,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:13,132 INFO L225 Difference]: With dead ends: 301 [2024-11-08 18:52:13,132 INFO L226 Difference]: Without dead ends: 181 [2024-11-08 18:52:13,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:52:13,133 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 118 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:13,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 722 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 18:52:13,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-08 18:52:13,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 179. [2024-11-08 18:52:13,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 136 states have (on average 1.1691176470588236) internal successors, (159), 137 states have internal predecessors, (159), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-08 18:52:13,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 219 transitions. [2024-11-08 18:52:13,164 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 219 transitions. Word has length 125 [2024-11-08 18:52:13,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:13,165 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 219 transitions. [2024-11-08 18:52:13,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:13,165 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 219 transitions. [2024-11-08 18:52:13,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 18:52:13,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:13,167 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:13,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2024-11-08 18:52:13,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:13,368 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:52:13,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:13,369 INFO L85 PathProgramCache]: Analyzing trace with hash 96892837, now seen corresponding path program 1 times [2024-11-08 18:52:13,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:52:13,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1073554451] [2024-11-08 18:52:13,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:13,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:13,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:52:13,371 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:52:13,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-08 18:52:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:13,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 18:52:13,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:13,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-08 18:52:14,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 35 [2024-11-08 18:52:15,060 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:52:15,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 29 [2024-11-08 18:52:15,220 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:52:15,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 35 [2024-11-08 18:52:15,339 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 220 proven. 48 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-08 18:52:15,339 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:52:15,637 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:52:15,637 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:52:15,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1073554451] [2024-11-08 18:52:15,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1073554451] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:52:15,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:52:15,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 17 [2024-11-08 18:52:15,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322105538] [2024-11-08 18:52:15,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:15,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:52:15,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:52:15,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:52:15,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:52:15,640 INFO L87 Difference]: Start difference. First operand 179 states and 219 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:16,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:16,092 INFO L93 Difference]: Finished difference Result 301 states and 367 transitions. [2024-11-08 18:52:16,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:52:16,094 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 125 [2024-11-08 18:52:16,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:16,096 INFO L225 Difference]: With dead ends: 301 [2024-11-08 18:52:16,096 INFO L226 Difference]: Without dead ends: 181 [2024-11-08 18:52:16,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-11-08 18:52:16,098 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 75 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:16,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 539 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:52:16,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-08 18:52:16,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-08 18:52:16,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 137 states have (on average 1.1605839416058394) internal successors, (159), 138 states have internal predecessors, (159), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-08 18:52:16,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 219 transitions. [2024-11-08 18:52:16,142 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 219 transitions. Word has length 125 [2024-11-08 18:52:16,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:16,143 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 219 transitions. [2024-11-08 18:52:16,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:16,144 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 219 transitions. [2024-11-08 18:52:16,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 18:52:16,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:16,146 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:16,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-08 18:52:16,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:16,347 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:52:16,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:16,347 INFO L85 PathProgramCache]: Analyzing trace with hash -2068975174, now seen corresponding path program 1 times [2024-11-08 18:52:16,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:52:16,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925523233] [2024-11-08 18:52:16,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:16,348 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:16,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:52:16,349 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:52:16,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-08 18:52:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:16,856 INFO L255 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 18:52:16,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:16,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:52:17,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2024-11-08 18:52:18,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-08 18:52:18,084 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:52:18,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 28 [2024-11-08 18:52:18,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:52:18,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 37 [2024-11-08 18:52:18,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 50 [2024-11-08 18:52:18,862 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:52:18,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 38 [2024-11-08 18:52:18,973 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 165 proven. 60 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-08 18:52:18,973 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:52:19,265 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:52:19,266 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:52:19,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [925523233] [2024-11-08 18:52:19,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [925523233] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:52:19,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:52:19,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 19 [2024-11-08 18:52:19,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968759510] [2024-11-08 18:52:19,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:19,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:52:19,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:52:19,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:52:19,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:52:19,268 INFO L87 Difference]: Start difference. First operand 181 states and 219 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:19,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:19,490 INFO L93 Difference]: Finished difference Result 188 states and 226 transitions. [2024-11-08 18:52:19,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:52:19,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2024-11-08 18:52:19,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:19,493 INFO L225 Difference]: With dead ends: 188 [2024-11-08 18:52:19,493 INFO L226 Difference]: Without dead ends: 186 [2024-11-08 18:52:19,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:52:19,494 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 101 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:19,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 728 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:52:19,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-08 18:52:19,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 184. [2024-11-08 18:52:19,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 140 states have (on average 1.1571428571428573) internal successors, (162), 141 states have internal predecessors, (162), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-08 18:52:19,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 222 transitions. [2024-11-08 18:52:19,524 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 222 transitions. Word has length 127 [2024-11-08 18:52:19,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:19,524 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 222 transitions. [2024-11-08 18:52:19,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:19,524 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 222 transitions. [2024-11-08 18:52:19,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 18:52:19,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:19,530 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:19,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-11-08 18:52:19,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:19,730 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:52:19,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:19,731 INFO L85 PathProgramCache]: Analyzing trace with hash -2067128132, now seen corresponding path program 1 times [2024-11-08 18:52:19,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:52:19,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206617699] [2024-11-08 18:52:19,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:19,732 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:19,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:52:19,733 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:52:19,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-08 18:52:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:20,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:52:20,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:20,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-08 18:52:20,193 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:52:20,193 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:52:20,193 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:52:20,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206617699] [2024-11-08 18:52:20,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206617699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:20,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:20,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:52:20,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703531429] [2024-11-08 18:52:20,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:20,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:52:20,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:52:20,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:52:20,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:52:20,195 INFO L87 Difference]: Start difference. First operand 184 states and 222 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:20,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:20,358 INFO L93 Difference]: Finished difference Result 311 states and 374 transitions. [2024-11-08 18:52:20,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:52:20,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2024-11-08 18:52:20,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:20,360 INFO L225 Difference]: With dead ends: 311 [2024-11-08 18:52:20,360 INFO L226 Difference]: Without dead ends: 186 [2024-11-08 18:52:20,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:52:20,361 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 101 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:20,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 571 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:52:20,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-08 18:52:20,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 184. [2024-11-08 18:52:20,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 140 states have (on average 1.15) internal successors, (161), 141 states have internal predecessors, (161), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-08 18:52:20,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 221 transitions. [2024-11-08 18:52:20,397 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 221 transitions. Word has length 127 [2024-11-08 18:52:20,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:20,398 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 221 transitions. [2024-11-08 18:52:20,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:20,398 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 221 transitions. [2024-11-08 18:52:20,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 18:52:20,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:20,400 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:20,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2024-11-08 18:52:20,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:20,600 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:52:20,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:20,601 INFO L85 PathProgramCache]: Analyzing trace with hash -292120770, now seen corresponding path program 1 times [2024-11-08 18:52:20,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:52:20,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [606016425] [2024-11-08 18:52:20,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:20,602 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:20,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:52:20,603 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:52:20,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-08 18:52:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:21,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 18:52:21,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:21,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:52:21,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:52:21,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-08 18:52:21,070 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:52:21,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2024-11-08 18:52:21,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-11-08 18:52:21,142 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:52:21,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 42 [2024-11-08 18:52:21,303 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:52:21,303 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:52:21,304 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:52:21,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [606016425] [2024-11-08 18:52:21,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [606016425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:21,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:21,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:52:21,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042414182] [2024-11-08 18:52:21,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:21,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:52:21,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:52:21,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:52:21,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:52:21,306 INFO L87 Difference]: Start difference. First operand 184 states and 221 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:21,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:21,761 INFO L93 Difference]: Finished difference Result 309 states and 370 transitions. [2024-11-08 18:52:21,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:52:21,762 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2024-11-08 18:52:21,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:21,764 INFO L225 Difference]: With dead ends: 309 [2024-11-08 18:52:21,764 INFO L226 Difference]: Without dead ends: 184 [2024-11-08 18:52:21,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:52:21,765 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 122 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:21,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 383 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:52:21,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-08 18:52:21,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2024-11-08 18:52:21,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 140 states have (on average 1.1428571428571428) internal successors, (160), 141 states have internal predecessors, (160), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-08 18:52:21,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 220 transitions. [2024-11-08 18:52:21,813 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 220 transitions. Word has length 127 [2024-11-08 18:52:21,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:21,814 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 220 transitions. [2024-11-08 18:52:21,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:21,814 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 220 transitions. [2024-11-08 18:52:21,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 18:52:21,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:21,815 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:21,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-08 18:52:22,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:22,016 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:52:22,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:22,017 INFO L85 PathProgramCache]: Analyzing trace with hash 387937600, now seen corresponding path program 1 times [2024-11-08 18:52:22,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:52:22,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415416944] [2024-11-08 18:52:22,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:22,018 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:22,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:52:22,019 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:52:22,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-08 18:52:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:22,467 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 18:52:22,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:22,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:52:22,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-11-08 18:52:24,423 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:52:24,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 50 [2024-11-08 18:52:24,643 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:52:24,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 70 [2024-11-08 18:52:25,170 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:52:25,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 163 treesize of output 73 [2024-11-08 18:52:25,404 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 197 proven. 96 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-08 18:52:25,404 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:52:25,787 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:52:25,788 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:52:25,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1415416944] [2024-11-08 18:52:25,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1415416944] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:52:25,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:52:25,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [23] total 25 [2024-11-08 18:52:25,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943843422] [2024-11-08 18:52:25,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:25,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:52:25,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:52:25,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:52:25,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2024-11-08 18:52:25,791 INFO L87 Difference]: Start difference. First operand 184 states and 220 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:26,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:26,330 INFO L93 Difference]: Finished difference Result 369 states and 441 transitions. [2024-11-08 18:52:26,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:52:26,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2024-11-08 18:52:26,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:26,334 INFO L225 Difference]: With dead ends: 369 [2024-11-08 18:52:26,334 INFO L226 Difference]: Without dead ends: 244 [2024-11-08 18:52:26,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=106, Invalid=650, Unknown=0, NotChecked=0, Total=756 [2024-11-08 18:52:26,336 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 56 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:26,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 624 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:52:26,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-08 18:52:26,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 197. [2024-11-08 18:52:26,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 153 states have (on average 1.1372549019607843) internal successors, (174), 154 states have internal predecessors, (174), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-08 18:52:26,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 234 transitions. [2024-11-08 18:52:26,377 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 234 transitions. Word has length 127 [2024-11-08 18:52:26,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:26,377 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 234 transitions. [2024-11-08 18:52:26,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:26,378 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 234 transitions. [2024-11-08 18:52:26,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 18:52:26,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:26,380 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:26,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-08 18:52:26,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:26,580 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:52:26,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:26,581 INFO L85 PathProgramCache]: Analyzing trace with hash 347244833, now seen corresponding path program 1 times [2024-11-08 18:52:26,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:52:26,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1433776502] [2024-11-08 18:52:26,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:26,582 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:26,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:52:26,583 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:52:26,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-08 18:52:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:26,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:52:26,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:28,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2024-11-08 18:52:29,010 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:52:29,010 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:52:29,010 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:52:29,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1433776502] [2024-11-08 18:52:29,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1433776502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:29,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:29,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:52:29,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296060059] [2024-11-08 18:52:29,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:29,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:52:29,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:52:29,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:52:29,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:52:29,014 INFO L87 Difference]: Start difference. First operand 197 states and 234 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:30,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:30,249 INFO L93 Difference]: Finished difference Result 503 states and 591 transitions. [2024-11-08 18:52:30,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:52:30,250 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 129 [2024-11-08 18:52:30,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:30,252 INFO L225 Difference]: With dead ends: 503 [2024-11-08 18:52:30,253 INFO L226 Difference]: Without dead ends: 365 [2024-11-08 18:52:30,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:52:30,254 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 166 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:30,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 513 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 18:52:30,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-08 18:52:30,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 320. [2024-11-08 18:52:30,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 233 states have (on average 1.0987124463519313) internal successors, (256), 235 states have internal predecessors, (256), 60 states have call successors, (60), 26 states have call predecessors, (60), 26 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-08 18:52:30,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 376 transitions. [2024-11-08 18:52:30,348 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 376 transitions. Word has length 129 [2024-11-08 18:52:30,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:30,349 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 376 transitions. [2024-11-08 18:52:30,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:30,349 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 376 transitions. [2024-11-08 18:52:30,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 18:52:30,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:30,351 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:30,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-11-08 18:52:30,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:30,552 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:52:30,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:30,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1294282719, now seen corresponding path program 1 times [2024-11-08 18:52:30,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:52:30,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121218263] [2024-11-08 18:52:30,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:30,553 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:30,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:52:30,555 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:52:30,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-08 18:52:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:30,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:52:30,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:30,886 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:52:30,886 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:52:30,886 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:52:30,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [121218263] [2024-11-08 18:52:30,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [121218263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:30,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:30,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:52:30,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510431396] [2024-11-08 18:52:30,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:30,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:52:30,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:52:30,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:52:30,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:52:30,889 INFO L87 Difference]: Start difference. First operand 320 states and 376 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:31,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:31,020 INFO L93 Difference]: Finished difference Result 579 states and 677 transitions. [2024-11-08 18:52:31,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:52:31,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 129 [2024-11-08 18:52:31,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:31,025 INFO L225 Difference]: With dead ends: 579 [2024-11-08 18:52:31,025 INFO L226 Difference]: Without dead ends: 320 [2024-11-08 18:52:31,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:52:31,027 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:31,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 362 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:52:31,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-08 18:52:31,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2024-11-08 18:52:31,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 233 states have (on average 1.090128755364807) internal successors, (254), 235 states have internal predecessors, (254), 60 states have call successors, (60), 26 states have call predecessors, (60), 26 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-08 18:52:31,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 374 transitions. [2024-11-08 18:52:31,115 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 374 transitions. Word has length 129 [2024-11-08 18:52:31,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:31,115 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 374 transitions. [2024-11-08 18:52:31,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:31,116 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 374 transitions. [2024-11-08 18:52:31,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-08 18:52:31,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:31,117 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:31,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-08 18:52:31,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:31,318 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:52:31,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:31,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1760695288, now seen corresponding path program 1 times [2024-11-08 18:52:31,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:52:31,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759646085] [2024-11-08 18:52:31,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:31,320 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:31,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:52:31,323 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:52:31,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-08 18:52:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:31,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:52:31,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:31,828 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:52:31,828 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:52:31,828 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:52:31,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759646085] [2024-11-08 18:52:31,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [759646085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:31,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:31,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:52:31,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110923151] [2024-11-08 18:52:31,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:31,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:52:31,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:52:31,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:52:31,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:52:31,831 INFO L87 Difference]: Start difference. First operand 320 states and 374 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:31,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:31,994 INFO L93 Difference]: Finished difference Result 534 states and 620 transitions. [2024-11-08 18:52:31,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:52:31,995 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 131 [2024-11-08 18:52:31,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:31,998 INFO L225 Difference]: With dead ends: 534 [2024-11-08 18:52:31,998 INFO L226 Difference]: Without dead ends: 324 [2024-11-08 18:52:31,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:52:32,001 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:32,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 596 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:52:32,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-08 18:52:32,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 321. [2024-11-08 18:52:32,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 234 states have (on average 1.0897435897435896) internal successors, (255), 236 states have internal predecessors, (255), 60 states have call successors, (60), 26 states have call predecessors, (60), 26 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-08 18:52:32,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 375 transitions. [2024-11-08 18:52:32,101 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 375 transitions. Word has length 131 [2024-11-08 18:52:32,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:32,102 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 375 transitions. [2024-11-08 18:52:32,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:32,102 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 375 transitions. [2024-11-08 18:52:32,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-08 18:52:32,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:32,104 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:32,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2024-11-08 18:52:32,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:32,305 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:52:32,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:32,306 INFO L85 PathProgramCache]: Analyzing trace with hash 30243835, now seen corresponding path program 1 times [2024-11-08 18:52:32,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:52:32,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258338363] [2024-11-08 18:52:32,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:32,307 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:32,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:52:32,310 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:52:32,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-08 18:52:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:32,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:52:32,748 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:34,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 33 [2024-11-08 18:52:34,477 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 14 proven. 42 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-08 18:52:34,477 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:52:34,716 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:52:34,717 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:52:34,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258338363] [2024-11-08 18:52:34,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258338363] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:52:34,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:52:34,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-11-08 18:52:34,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165427605] [2024-11-08 18:52:34,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:34,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:52:34,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:52:34,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:52:34,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:52:34,719 INFO L87 Difference]: Start difference. First operand 321 states and 375 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:34,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:34,940 INFO L93 Difference]: Finished difference Result 568 states and 659 transitions. [2024-11-08 18:52:34,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:52:34,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 131 [2024-11-08 18:52:34,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:34,944 INFO L225 Difference]: With dead ends: 568 [2024-11-08 18:52:34,946 INFO L226 Difference]: Without dead ends: 357 [2024-11-08 18:52:34,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:52:34,948 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 47 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:34,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 505 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:52:34,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-08 18:52:35,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 321. [2024-11-08 18:52:35,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 234 states have (on average 1.0854700854700854) internal successors, (254), 236 states have internal predecessors, (254), 60 states have call successors, (60), 26 states have call predecessors, (60), 26 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-08 18:52:35,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 374 transitions. [2024-11-08 18:52:35,030 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 374 transitions. Word has length 131 [2024-11-08 18:52:35,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:35,031 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 374 transitions. [2024-11-08 18:52:35,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:35,031 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 374 transitions. [2024-11-08 18:52:35,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-08 18:52:35,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:35,033 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:35,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-11-08 18:52:35,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:35,233 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:52:35,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:35,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1333784039, now seen corresponding path program 1 times [2024-11-08 18:52:35,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:52:35,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749362863] [2024-11-08 18:52:35,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:35,235 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:35,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:52:35,236 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:52:35,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-11-08 18:52:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:35,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:52:35,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:37,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2024-11-08 18:52:37,523 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:52:37,523 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:52:37,523 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:52:37,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749362863] [2024-11-08 18:52:37,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1749362863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:37,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:37,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:52:37,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747075730] [2024-11-08 18:52:37,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:37,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:52:37,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:52:37,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:52:37,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:52:37,525 INFO L87 Difference]: Start difference. First operand 321 states and 374 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:38,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:38,418 INFO L93 Difference]: Finished difference Result 555 states and 639 transitions. [2024-11-08 18:52:38,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:52:38,419 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 135 [2024-11-08 18:52:38,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:38,421 INFO L225 Difference]: With dead ends: 555 [2024-11-08 18:52:38,422 INFO L226 Difference]: Without dead ends: 344 [2024-11-08 18:52:38,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:52:38,425 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 147 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:38,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 511 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:52:38,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-08 18:52:38,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 331. [2024-11-08 18:52:38,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 244 states have (on average 1.0819672131147542) internal successors, (264), 246 states have internal predecessors, (264), 60 states have call successors, (60), 26 states have call predecessors, (60), 26 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-08 18:52:38,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 384 transitions. [2024-11-08 18:52:38,503 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 384 transitions. Word has length 135 [2024-11-08 18:52:38,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:38,503 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 384 transitions. [2024-11-08 18:52:38,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:38,504 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 384 transitions. [2024-11-08 18:52:38,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 18:52:38,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:38,505 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:38,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-11-08 18:52:38,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:38,706 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:52:38,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:38,707 INFO L85 PathProgramCache]: Analyzing trace with hash 824956225, now seen corresponding path program 1 times [2024-11-08 18:52:38,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:52:38,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684330085] [2024-11-08 18:52:38,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:38,708 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:38,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:52:38,712 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:52:38,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-11-08 18:52:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:39,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:52:39,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:40,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-08 18:52:40,442 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 14 proven. 42 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-08 18:52:40,442 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:52:40,695 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:52:40,695 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:52:40,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684330085] [2024-11-08 18:52:40,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684330085] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:52:40,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:52:40,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-11-08 18:52:40,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392163396] [2024-11-08 18:52:40,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:40,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:52:40,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:52:40,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:52:40,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:52:40,698 INFO L87 Difference]: Start difference. First operand 331 states and 384 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:40,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:40,943 INFO L93 Difference]: Finished difference Result 565 states and 648 transitions. [2024-11-08 18:52:40,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:52:40,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 137 [2024-11-08 18:52:40,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:40,947 INFO L225 Difference]: With dead ends: 565 [2024-11-08 18:52:40,947 INFO L226 Difference]: Without dead ends: 344 [2024-11-08 18:52:40,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:52:40,950 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 14 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:40,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 461 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:52:40,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-08 18:52:41,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 321. [2024-11-08 18:52:41,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 234 states have (on average 1.0811965811965811) internal successors, (253), 236 states have internal predecessors, (253), 60 states have call successors, (60), 26 states have call predecessors, (60), 26 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-08 18:52:41,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 373 transitions. [2024-11-08 18:52:41,019 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 373 transitions. Word has length 137 [2024-11-08 18:52:41,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:41,020 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 373 transitions. [2024-11-08 18:52:41,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:41,020 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 373 transitions. [2024-11-08 18:52:41,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-08 18:52:41,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:41,021 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:41,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-11-08 18:52:41,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:41,222 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:52:41,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:41,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1799026270, now seen corresponding path program 1 times [2024-11-08 18:52:41,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:52:41,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687578173] [2024-11-08 18:52:41,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:41,223 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:41,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:52:41,224 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:52:41,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-11-08 18:52:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:41,572 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 18:52:41,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:42,126 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 212 proven. 15 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-08 18:52:42,126 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:52:42,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-08 18:52:42,900 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:52:42,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687578173] [2024-11-08 18:52:42,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687578173] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:52:42,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601629006] [2024-11-08 18:52:42,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:42,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:52:42,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:52:42,903 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:52:42,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-08 18:52:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:43,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 18:52:43,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:43,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-11-08 18:52:44,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-08 18:52:44,342 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:52:44,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 44 [2024-11-08 18:52:44,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 23 [2024-11-08 18:52:44,697 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 165 proven. 60 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-08 18:52:44,697 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:52:46,152 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:52:46,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601629006] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:52:46,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:52:46,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 14] total 30 [2024-11-08 18:52:46,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696897721] [2024-11-08 18:52:46,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:46,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:52:46,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:52:46,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:52:46,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1090, Unknown=0, NotChecked=0, Total=1260 [2024-11-08 18:52:46,154 INFO L87 Difference]: Start difference. First operand 321 states and 373 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:46,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:46,913 INFO L93 Difference]: Finished difference Result 602 states and 693 transitions. [2024-11-08 18:52:46,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:52:46,914 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 139 [2024-11-08 18:52:46,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:46,917 INFO L225 Difference]: With dead ends: 602 [2024-11-08 18:52:46,917 INFO L226 Difference]: Without dead ends: 391 [2024-11-08 18:52:46,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 420 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=193, Invalid=1213, Unknown=0, NotChecked=0, Total=1406 [2024-11-08 18:52:46,919 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 198 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:46,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 491 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:52:46,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-08 18:52:46,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 308. [2024-11-08 18:52:46,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 227 states have (on average 1.0881057268722467) internal successors, (247), 229 states have internal predecessors, (247), 56 states have call successors, (56), 24 states have call predecessors, (56), 24 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 18:52:46,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 359 transitions. [2024-11-08 18:52:46,986 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 359 transitions. Word has length 139 [2024-11-08 18:52:46,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:46,987 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 359 transitions. [2024-11-08 18:52:46,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:52:46,987 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 359 transitions. [2024-11-08 18:52:46,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-08 18:52:46,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:46,989 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:47,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-08 18:52:47,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2024-11-08 18:52:47,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:47,393 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:52:47,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:47,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1474872672, now seen corresponding path program 1 times [2024-11-08 18:52:47,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:52:47,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [518277158] [2024-11-08 18:52:47,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:47,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:52:47,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:52:47,395 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:52:47,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-11-08 18:52:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:47,747 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 18:52:47,749 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:48,189 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 212 proven. 15 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-08 18:52:48,189 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:52:48,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-08 18:52:48,731 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:52:48,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [518277158] [2024-11-08 18:52:48,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [518277158] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:52:48,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858802304] [2024-11-08 18:52:48,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:48,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:52:48,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:52:48,733 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:52:48,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-08 18:52:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:49,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-08 18:52:49,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:49,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-11-08 18:52:50,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2024-11-08 18:52:50,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:52:50,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 17 [2024-11-08 18:52:50,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:52:51,123 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 268 proven. 69 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-08 18:52:51,123 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:52:58,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858802304] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:52:58,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:52:58,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 18] total 25 [2024-11-08 18:52:58,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290373752] [2024-11-08 18:52:58,767 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:52:58,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-08 18:52:58,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:52:58,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-08 18:52:58,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=1024, Unknown=1, NotChecked=0, Total=1190 [2024-11-08 18:52:58,769 INFO L87 Difference]: Start difference. First operand 308 states and 359 transitions. Second operand has 25 states, 21 states have (on average 5.428571428571429) internal successors, (114), 24 states have internal predecessors, (114), 8 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (27), 5 states have call predecessors, (27), 8 states have call successors, (27) [2024-11-08 18:53:05,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:05,935 INFO L93 Difference]: Finished difference Result 559 states and 635 transitions. [2024-11-08 18:53:05,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-08 18:53:05,936 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 21 states have (on average 5.428571428571429) internal successors, (114), 24 states have internal predecessors, (114), 8 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (27), 5 states have call predecessors, (27), 8 states have call successors, (27) Word has length 139 [2024-11-08 18:53:05,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:05,939 INFO L225 Difference]: With dead ends: 559 [2024-11-08 18:53:05,939 INFO L226 Difference]: Without dead ends: 345 [2024-11-08 18:53:05,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 325 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1009 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=587, Invalid=3444, Unknown=1, NotChecked=0, Total=4032 [2024-11-08 18:53:05,941 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 397 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:05,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 889 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-08 18:53:05,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-08 18:53:06,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 333. [2024-11-08 18:53:06,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 246 states have (on average 1.08130081300813) internal successors, (266), 248 states have internal predecessors, (266), 56 states have call successors, (56), 30 states have call predecessors, (56), 30 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 18:53:06,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 378 transitions. [2024-11-08 18:53:06,021 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 378 transitions. Word has length 139 [2024-11-08 18:53:06,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:06,021 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 378 transitions. [2024-11-08 18:53:06,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 21 states have (on average 5.428571428571429) internal successors, (114), 24 states have internal predecessors, (114), 8 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (27), 5 states have call predecessors, (27), 8 states have call successors, (27) [2024-11-08 18:53:06,022 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 378 transitions. [2024-11-08 18:53:06,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-08 18:53:06,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:06,023 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:06,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-08 18:53:06,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-11-08 18:53:06,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:53:06,424 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:06,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:06,425 INFO L85 PathProgramCache]: Analyzing trace with hash -2118494750, now seen corresponding path program 1 times [2024-11-08 18:53:06,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:53:06,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893651075] [2024-11-08 18:53:06,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:06,426 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:53:06,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:53:06,429 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:53:06,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2024-11-08 18:53:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:06,807 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:53:06,809 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:07,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:53:07,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-08 18:53:07,570 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 212 proven. 15 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-08 18:53:07,570 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:53:07,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-08 18:53:08,187 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:53:08,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893651075] [2024-11-08 18:53:08,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893651075] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:08,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492722115] [2024-11-08 18:53:08,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:08,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:08,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:53:08,188 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:53:08,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-08 18:53:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:08,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 18:53:08,482 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:09,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2024-11-08 18:53:09,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 18:53:11,089 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:53:11,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 44 [2024-11-08 18:53:11,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:53:11,859 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 268 proven. 69 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-08 18:53:11,859 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:53:12,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492722115] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:12,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:53:12,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 18] total 24 [2024-11-08 18:53:12,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641241145] [2024-11-08 18:53:12,666 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:53:12,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-08 18:53:12,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:53:12,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-08 18:53:12,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=803, Unknown=0, NotChecked=0, Total=930 [2024-11-08 18:53:12,668 INFO L87 Difference]: Start difference. First operand 333 states and 378 transitions. Second operand has 24 states, 20 states have (on average 6.1) internal successors, (122), 22 states have internal predecessors, (122), 8 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (27), 6 states have call predecessors, (27), 8 states have call successors, (27) [2024-11-08 18:53:16,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:16,911 INFO L93 Difference]: Finished difference Result 576 states and 647 transitions. [2024-11-08 18:53:16,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-08 18:53:16,912 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 20 states have (on average 6.1) internal successors, (122), 22 states have internal predecessors, (122), 8 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (27), 6 states have call predecessors, (27), 8 states have call successors, (27) Word has length 139 [2024-11-08 18:53:16,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:16,914 INFO L225 Difference]: With dead ends: 576 [2024-11-08 18:53:16,914 INFO L226 Difference]: Without dead ends: 345 [2024-11-08 18:53:16,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=332, Invalid=1924, Unknown=0, NotChecked=0, Total=2256 [2024-11-08 18:53:16,916 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 239 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:16,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 943 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 18:53:16,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-08 18:53:16,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 332. [2024-11-08 18:53:16,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 245 states have (on average 1.0775510204081633) internal successors, (264), 247 states have internal predecessors, (264), 56 states have call successors, (56), 30 states have call predecessors, (56), 30 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 18:53:16,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 376 transitions. [2024-11-08 18:53:17,000 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 376 transitions. Word has length 139 [2024-11-08 18:53:17,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:17,000 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 376 transitions. [2024-11-08 18:53:17,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 20 states have (on average 6.1) internal successors, (122), 22 states have internal predecessors, (122), 8 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (27), 6 states have call predecessors, (27), 8 states have call successors, (27) [2024-11-08 18:53:17,000 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 376 transitions. [2024-11-08 18:53:17,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 18:53:17,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:17,002 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:17,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2024-11-08 18:53:17,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-08 18:53:17,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:17,403 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:17,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:17,403 INFO L85 PathProgramCache]: Analyzing trace with hash -172642351, now seen corresponding path program 1 times [2024-11-08 18:53:17,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:53:17,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305006029] [2024-11-08 18:53:17,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:17,404 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:53:17,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:53:17,405 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:53:17,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2024-11-08 18:53:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:17,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 18:53:17,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:17,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-08 18:53:18,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2024-11-08 18:53:19,244 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:53:19,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 44 [2024-11-08 18:53:19,743 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:53:19,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 48 [2024-11-08 18:53:20,061 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:53:20,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 25 [2024-11-08 18:53:20,152 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 165 proven. 60 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-08 18:53:20,152 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:53:20,565 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:53:20,565 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:53:20,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305006029] [2024-11-08 18:53:20,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305006029] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:20,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:53:20,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 18 [2024-11-08 18:53:20,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026810539] [2024-11-08 18:53:20,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:20,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:53:20,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:53:20,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:53:20,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:53:20,567 INFO L87 Difference]: Start difference. First operand 332 states and 376 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:53:21,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:21,109 INFO L93 Difference]: Finished difference Result 643 states and 728 transitions. [2024-11-08 18:53:21,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:53:21,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 143 [2024-11-08 18:53:21,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:21,112 INFO L225 Difference]: With dead ends: 643 [2024-11-08 18:53:21,112 INFO L226 Difference]: Without dead ends: 412 [2024-11-08 18:53:21,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:53:21,114 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 52 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:21,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 470 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:53:21,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-08 18:53:21,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 353. [2024-11-08 18:53:21,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 266 states have (on average 1.086466165413534) internal successors, (289), 268 states have internal predecessors, (289), 56 states have call successors, (56), 30 states have call predecessors, (56), 30 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 18:53:21,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 401 transitions. [2024-11-08 18:53:21,198 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 401 transitions. Word has length 143 [2024-11-08 18:53:21,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:21,198 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 401 transitions. [2024-11-08 18:53:21,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:53:21,199 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 401 transitions. [2024-11-08 18:53:21,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 18:53:21,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:21,200 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:21,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2024-11-08 18:53:21,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:53:21,401 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:21,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:21,401 INFO L85 PathProgramCache]: Analyzing trace with hash -840517739, now seen corresponding path program 1 times [2024-11-08 18:53:21,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:53:21,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535070941] [2024-11-08 18:53:21,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:21,402 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:53:21,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:53:21,405 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:53:21,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2024-11-08 18:53:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:21,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 18:53:21,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:21,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:53:21,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2024-11-08 18:53:22,027 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:53:22,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 37 [2024-11-08 18:53:22,489 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:53:22,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 22 [2024-11-08 18:53:22,832 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:53:22,833 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:53:22,833 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:53:22,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535070941] [2024-11-08 18:53:22,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535070941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:22,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:53:22,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 18:53:22,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502559252] [2024-11-08 18:53:22,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:22,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 18:53:22,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:53:22,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 18:53:22,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:53:22,836 INFO L87 Difference]: Start difference. First operand 353 states and 401 transitions. Second operand has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:53:25,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:25,264 INFO L93 Difference]: Finished difference Result 730 states and 824 transitions. [2024-11-08 18:53:25,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 18:53:25,265 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 143 [2024-11-08 18:53:25,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:25,269 INFO L225 Difference]: With dead ends: 730 [2024-11-08 18:53:25,269 INFO L226 Difference]: Without dead ends: 479 [2024-11-08 18:53:25,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:53:25,271 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 146 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1530 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:25,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1530 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 18:53:25,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-11-08 18:53:25,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 389. [2024-11-08 18:53:25,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 302 states have (on average 1.099337748344371) internal successors, (332), 304 states have internal predecessors, (332), 56 states have call successors, (56), 30 states have call predecessors, (56), 30 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 18:53:25,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 444 transitions. [2024-11-08 18:53:25,354 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 444 transitions. Word has length 143 [2024-11-08 18:53:25,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:25,354 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 444 transitions. [2024-11-08 18:53:25,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:53:25,355 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 444 transitions. [2024-11-08 18:53:25,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 18:53:25,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:25,356 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:25,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2024-11-08 18:53:25,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:53:25,557 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:25,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:25,557 INFO L85 PathProgramCache]: Analyzing trace with hash 275049274, now seen corresponding path program 1 times [2024-11-08 18:53:25,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:53:25,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815274355] [2024-11-08 18:53:25,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:25,558 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:53:25,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:53:25,559 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:53:25,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2024-11-08 18:53:26,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:26,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 18:53:26,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:26,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:53:26,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-11-08 18:53:27,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-08 18:53:27,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 32 [2024-11-08 18:53:27,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-08 18:53:27,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-08 18:53:27,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 24 [2024-11-08 18:53:28,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-08 18:53:28,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-08 18:53:28,386 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 165 proven. 60 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-08 18:53:28,386 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:53:29,093 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:53:29,093 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:53:29,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815274355] [2024-11-08 18:53:29,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [815274355] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:29,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:53:29,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2024-11-08 18:53:29,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043235241] [2024-11-08 18:53:29,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:29,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:53:29,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:53:29,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:53:29,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:53:29,095 INFO L87 Difference]: Start difference. First operand 389 states and 444 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:53:29,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:29,994 INFO L93 Difference]: Finished difference Result 851 states and 975 transitions. [2024-11-08 18:53:29,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:53:29,995 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 145 [2024-11-08 18:53:29,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:29,998 INFO L225 Difference]: With dead ends: 851 [2024-11-08 18:53:29,998 INFO L226 Difference]: Without dead ends: 564 [2024-11-08 18:53:29,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2024-11-08 18:53:29,999 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 216 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:29,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 479 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:53:30,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-11-08 18:53:30,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 407. [2024-11-08 18:53:30,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 320 states have (on average 1.103125) internal successors, (353), 322 states have internal predecessors, (353), 56 states have call successors, (56), 30 states have call predecessors, (56), 30 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 18:53:30,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 465 transitions. [2024-11-08 18:53:30,079 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 465 transitions. Word has length 145 [2024-11-08 18:53:30,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:30,080 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 465 transitions. [2024-11-08 18:53:30,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:53:30,080 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 465 transitions. [2024-11-08 18:53:30,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 18:53:30,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:30,082 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:30,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2024-11-08 18:53:30,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:53:30,282 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:30,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:30,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1309164536, now seen corresponding path program 1 times [2024-11-08 18:53:30,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:53:30,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2030713060] [2024-11-08 18:53:30,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:30,284 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:53:30,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:53:30,287 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:53:30,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2024-11-08 18:53:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:30,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:53:30,647 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:30,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-08 18:53:30,728 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:53:30,728 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:53:30,728 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:53:30,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2030713060] [2024-11-08 18:53:30,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2030713060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:30,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:53:30,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:53:30,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058280937] [2024-11-08 18:53:30,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:30,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:53:30,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:53:30,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:53:30,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:53:30,730 INFO L87 Difference]: Start difference. First operand 407 states and 465 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:53:31,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:31,397 INFO L93 Difference]: Finished difference Result 774 states and 882 transitions. [2024-11-08 18:53:31,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:53:31,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 145 [2024-11-08 18:53:31,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:31,401 INFO L225 Difference]: With dead ends: 774 [2024-11-08 18:53:31,401 INFO L226 Difference]: Without dead ends: 469 [2024-11-08 18:53:31,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:53:31,403 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 44 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:31,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 429 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:53:31,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-08 18:53:31,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 412. [2024-11-08 18:53:31,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 325 states have (on average 1.1076923076923078) internal successors, (360), 327 states have internal predecessors, (360), 56 states have call successors, (56), 30 states have call predecessors, (56), 30 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 18:53:31,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 472 transitions. [2024-11-08 18:53:31,497 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 472 transitions. Word has length 145 [2024-11-08 18:53:31,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:31,498 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 472 transitions. [2024-11-08 18:53:31,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:53:31,498 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 472 transitions. [2024-11-08 18:53:31,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 18:53:31,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:31,500 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:31,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2024-11-08 18:53:31,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:53:31,701 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:31,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:31,701 INFO L85 PathProgramCache]: Analyzing trace with hash 29300858, now seen corresponding path program 1 times [2024-11-08 18:53:31,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:53:31,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614847297] [2024-11-08 18:53:31,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:31,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:53:31,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:53:31,703 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:53:31,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2024-11-08 18:53:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:32,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 18:53:32,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:32,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:53:32,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2024-11-08 18:53:33,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-08 18:53:33,844 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:53:33,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 53 [2024-11-08 18:53:34,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-11-08 18:53:34,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2024-11-08 18:53:34,189 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:53:34,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 29 [2024-11-08 18:53:34,315 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 165 proven. 60 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-08 18:53:34,316 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:53:34,684 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:53:34,684 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:53:34,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614847297] [2024-11-08 18:53:34,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614847297] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:34,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:53:34,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2024-11-08 18:53:34,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329100681] [2024-11-08 18:53:34,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:34,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:53:34,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:53:34,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:53:34,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-08 18:53:34,686 INFO L87 Difference]: Start difference. First operand 412 states and 472 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:53:35,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:35,041 INFO L93 Difference]: Finished difference Result 704 states and 802 transitions. [2024-11-08 18:53:35,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:53:35,042 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 145 [2024-11-08 18:53:35,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:35,043 INFO L225 Difference]: With dead ends: 704 [2024-11-08 18:53:35,043 INFO L226 Difference]: Without dead ends: 394 [2024-11-08 18:53:35,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:53:35,044 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 75 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:35,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 215 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:53:35,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-08 18:53:35,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2024-11-08 18:53:35,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 307 states have (on average 1.1009771986970684) internal successors, (338), 309 states have internal predecessors, (338), 56 states have call successors, (56), 30 states have call predecessors, (56), 30 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 18:53:35,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 450 transitions. [2024-11-08 18:53:35,120 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 450 transitions. Word has length 145 [2024-11-08 18:53:35,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:35,121 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 450 transitions. [2024-11-08 18:53:35,121 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:53:35,121 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 450 transitions. [2024-11-08 18:53:35,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 18:53:35,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:35,123 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:35,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2024-11-08 18:53:35,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:53:35,323 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:35,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:35,324 INFO L85 PathProgramCache]: Analyzing trace with hash 934580796, now seen corresponding path program 1 times [2024-11-08 18:53:35,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:53:35,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1240146215] [2024-11-08 18:53:35,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:35,325 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:53:35,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:53:35,328 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:53:35,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2024-11-08 18:53:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:35,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-08 18:53:35,924 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:35,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:53:36,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2024-11-08 18:53:38,028 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:53:38,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 49 [2024-11-08 18:53:38,974 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:53:38,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 56 [2024-11-08 18:53:39,707 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:53:39,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 38 [2024-11-08 18:53:39,859 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 214 proven. 78 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-08 18:53:39,859 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:53:40,630 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:53:40,630 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:53:40,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1240146215] [2024-11-08 18:53:40,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1240146215] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:40,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:53:40,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [22] total 27 [2024-11-08 18:53:40,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344291767] [2024-11-08 18:53:40,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:40,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:53:40,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:53:40,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:53:40,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2024-11-08 18:53:40,632 INFO L87 Difference]: Start difference. First operand 394 states and 450 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:53:41,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:41,415 INFO L93 Difference]: Finished difference Result 732 states and 833 transitions. [2024-11-08 18:53:41,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:53:41,415 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 145 [2024-11-08 18:53:41,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:41,417 INFO L225 Difference]: With dead ends: 732 [2024-11-08 18:53:41,417 INFO L226 Difference]: Without dead ends: 440 [2024-11-08 18:53:41,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 262 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=144, Invalid=726, Unknown=0, NotChecked=0, Total=870 [2024-11-08 18:53:41,419 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 42 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:41,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 615 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:53:41,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-11-08 18:53:41,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 396. [2024-11-08 18:53:41,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 309 states have (on average 1.1003236245954693) internal successors, (340), 311 states have internal predecessors, (340), 56 states have call successors, (56), 30 states have call predecessors, (56), 30 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 18:53:41,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 452 transitions. [2024-11-08 18:53:41,506 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 452 transitions. Word has length 145 [2024-11-08 18:53:41,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:41,507 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 452 transitions. [2024-11-08 18:53:41,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:53:41,507 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 452 transitions. [2024-11-08 18:53:41,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 18:53:41,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:41,509 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:41,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2024-11-08 18:53:41,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:53:41,709 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:41,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:41,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1193561518, now seen corresponding path program 1 times [2024-11-08 18:53:41,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:53:41,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847961131] [2024-11-08 18:53:41,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:41,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:53:41,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:53:41,712 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:53:41,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2024-11-08 18:53:42,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:42,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-08 18:53:42,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:42,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:53:42,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-11-08 18:53:43,865 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:53:43,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 45 [2024-11-08 18:53:44,787 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:53:44,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 55 [2024-11-08 18:53:45,576 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:53:45,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 37 [2024-11-08 18:53:49,224 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 214 proven. 78 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-08 18:53:49,225 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:53:51,217 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:53:51,217 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:53:51,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [847961131] [2024-11-08 18:53:51,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [847961131] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:51,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:53:51,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [22] total 28 [2024-11-08 18:53:51,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278125411] [2024-11-08 18:53:51,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:51,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:53:51,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:53:51,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:53:51,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2024-11-08 18:53:51,220 INFO L87 Difference]: Start difference. First operand 396 states and 452 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:53:53,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:53,089 INFO L93 Difference]: Finished difference Result 766 states and 869 transitions. [2024-11-08 18:53:53,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:53:53,090 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 145 [2024-11-08 18:53:53,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:53,092 INFO L225 Difference]: With dead ends: 766 [2024-11-08 18:53:53,092 INFO L226 Difference]: Without dead ends: 472 [2024-11-08 18:53:53,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=160, Invalid=832, Unknown=0, NotChecked=0, Total=992 [2024-11-08 18:53:53,093 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 75 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:53,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 798 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:53:53,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-08 18:53:53,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 396. [2024-11-08 18:53:53,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 309 states have (on average 1.0970873786407767) internal successors, (339), 311 states have internal predecessors, (339), 56 states have call successors, (56), 30 states have call predecessors, (56), 30 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 18:53:53,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 451 transitions. [2024-11-08 18:53:53,188 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 451 transitions. Word has length 145 [2024-11-08 18:53:53,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:53,189 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 451 transitions. [2024-11-08 18:53:53,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:53:53,189 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 451 transitions. [2024-11-08 18:53:53,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 18:53:53,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:53,191 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:53,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2024-11-08 18:53:53,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:53:53,392 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:53,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:53,393 INFO L85 PathProgramCache]: Analyzing trace with hash 688832380, now seen corresponding path program 1 times [2024-11-08 18:53:53,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:53:53,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635531979] [2024-11-08 18:53:53,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:53,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:53:53,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:53:53,395 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:53:53,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2024-11-08 18:53:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:53,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 18:53:53,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:53,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:53:54,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-11-08 18:53:54,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-08 18:53:54,866 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:53:54,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 49 [2024-11-08 18:53:54,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-11-08 18:53:55,215 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:53:55,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 52 [2024-11-08 18:53:55,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2024-11-08 18:53:55,496 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:53:55,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 25 [2024-11-08 18:53:55,585 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 165 proven. 60 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-08 18:53:55,585 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:53:56,014 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:53:56,014 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:53:56,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [635531979] [2024-11-08 18:53:56,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [635531979] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:56,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:53:56,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2024-11-08 18:53:56,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999378258] [2024-11-08 18:53:56,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:56,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:53:56,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:53:56,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:53:56,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:53:56,017 INFO L87 Difference]: Start difference. First operand 396 states and 451 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:53:56,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:56,378 INFO L93 Difference]: Finished difference Result 682 states and 771 transitions. [2024-11-08 18:53:56,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:53:56,380 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 145 [2024-11-08 18:53:56,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:56,382 INFO L225 Difference]: With dead ends: 682 [2024-11-08 18:53:56,383 INFO L226 Difference]: Without dead ends: 388 [2024-11-08 18:53:56,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-08 18:53:56,384 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 59 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:56,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 214 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:53:56,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-08 18:53:56,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2024-11-08 18:53:56,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 301 states have (on average 1.079734219269103) internal successors, (325), 303 states have internal predecessors, (325), 56 states have call successors, (56), 30 states have call predecessors, (56), 30 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 18:53:56,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 437 transitions. [2024-11-08 18:53:56,447 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 437 transitions. Word has length 145 [2024-11-08 18:53:56,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:56,447 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 437 transitions. [2024-11-08 18:53:56,447 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:53:56,448 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 437 transitions. [2024-11-08 18:53:56,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 18:53:56,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:56,449 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:56,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2024-11-08 18:53:56,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:53:56,650 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:56,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:56,651 INFO L85 PathProgramCache]: Analyzing trace with hash 90575294, now seen corresponding path program 1 times [2024-11-08 18:53:56,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:53:56,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186526506] [2024-11-08 18:53:56,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:56,651 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:53:56,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:53:56,652 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:53:56,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2024-11-08 18:53:57,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:57,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 18:53:57,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:57,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:53:57,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-11-08 18:53:58,088 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:53:58,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 40 [2024-11-08 18:53:58,535 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:53:58,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 44 [2024-11-08 18:53:58,800 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:53:58,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 21 [2024-11-08 18:53:58,886 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 165 proven. 60 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-08 18:53:58,886 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:53:59,349 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:53:59,349 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:53:59,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186526506] [2024-11-08 18:53:59,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [186526506] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:59,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:53:59,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2024-11-08 18:53:59,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95150414] [2024-11-08 18:53:59,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:59,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:53:59,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:53:59,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:53:59,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:53:59,351 INFO L87 Difference]: Start difference. First operand 388 states and 437 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:53:59,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:59,806 INFO L93 Difference]: Finished difference Result 729 states and 815 transitions. [2024-11-08 18:53:59,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:53:59,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 145 [2024-11-08 18:53:59,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:59,809 INFO L225 Difference]: With dead ends: 729 [2024-11-08 18:53:59,809 INFO L226 Difference]: Without dead ends: 443 [2024-11-08 18:53:59,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:53:59,810 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 52 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:59,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 445 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:53:59,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-08 18:53:59,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 386. [2024-11-08 18:53:59,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 299 states have (on average 1.0702341137123745) internal successors, (320), 301 states have internal predecessors, (320), 56 states have call successors, (56), 30 states have call predecessors, (56), 30 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 18:53:59,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 432 transitions. [2024-11-08 18:53:59,908 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 432 transitions. Word has length 145 [2024-11-08 18:53:59,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:59,909 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 432 transitions. [2024-11-08 18:53:59,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:53:59,909 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 432 transitions. [2024-11-08 18:53:59,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 18:53:59,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:59,911 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:59,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2024-11-08 18:54:00,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:54:00,112 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:00,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:00,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1111534206, now seen corresponding path program 1 times [2024-11-08 18:54:00,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:54:00,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876745909] [2024-11-08 18:54:00,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:00,113 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:54:00,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:54:00,114 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:54:00,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2024-11-08 18:54:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:00,608 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 18:54:00,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:54:00,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:54:01,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 26 [2024-11-08 18:54:01,417 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:54:01,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 30 [2024-11-08 18:54:01,704 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:54:01,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 16 [2024-11-08 18:54:01,780 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 218 proven. 24 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-08 18:54:01,780 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:54:02,352 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:54:02,352 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:54:02,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876745909] [2024-11-08 18:54:02,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [876745909] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:54:02,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:54:02,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2024-11-08 18:54:02,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162593309] [2024-11-08 18:54:02,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:02,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:54:02,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:54:02,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:54:02,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:54:02,354 INFO L87 Difference]: Start difference. First operand 386 states and 432 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:54:03,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:03,315 INFO L93 Difference]: Finished difference Result 736 states and 816 transitions. [2024-11-08 18:54:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:54:03,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 145 [2024-11-08 18:54:03,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:03,318 INFO L225 Difference]: With dead ends: 736 [2024-11-08 18:54:03,318 INFO L226 Difference]: Without dead ends: 452 [2024-11-08 18:54:03,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2024-11-08 18:54:03,319 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 46 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:03,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 630 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:54:03,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-08 18:54:03,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 384. [2024-11-08 18:54:03,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 297 states have (on average 1.0673400673400673) internal successors, (317), 299 states have internal predecessors, (317), 56 states have call successors, (56), 30 states have call predecessors, (56), 30 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 18:54:03,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 429 transitions. [2024-11-08 18:54:03,410 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 429 transitions. Word has length 145 [2024-11-08 18:54:03,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:03,410 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 429 transitions. [2024-11-08 18:54:03,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:54:03,411 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 429 transitions. [2024-11-08 18:54:03,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 18:54:03,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:03,412 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:03,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2024-11-08 18:54:03,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:54:03,613 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:03,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:03,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1236331922, now seen corresponding path program 1 times [2024-11-08 18:54:03,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:54:03,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261230209] [2024-11-08 18:54:03,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:03,614 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:54:03,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:54:03,615 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:54:03,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2024-11-08 18:54:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:03,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:54:03,986 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:54:04,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-08 18:54:04,098 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:54:04,098 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:54:04,099 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:54:04,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261230209] [2024-11-08 18:54:04,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261230209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:04,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:04,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:54:04,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891926186] [2024-11-08 18:54:04,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:04,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:54:04,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:54:04,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:54:04,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:54:04,101 INFO L87 Difference]: Start difference. First operand 384 states and 429 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:54:04,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:04,769 INFO L93 Difference]: Finished difference Result 725 states and 804 transitions. [2024-11-08 18:54:04,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:54:04,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 145 [2024-11-08 18:54:04,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:04,772 INFO L225 Difference]: With dead ends: 725 [2024-11-08 18:54:04,772 INFO L226 Difference]: Without dead ends: 443 [2024-11-08 18:54:04,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:54:04,773 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 64 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:04,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 473 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:54:04,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-08 18:54:04,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 384. [2024-11-08 18:54:04,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 297 states have (on average 1.063973063973064) internal successors, (316), 299 states have internal predecessors, (316), 56 states have call successors, (56), 30 states have call predecessors, (56), 30 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 18:54:04,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 428 transitions. [2024-11-08 18:54:04,862 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 428 transitions. Word has length 145 [2024-11-08 18:54:04,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:04,863 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 428 transitions. [2024-11-08 18:54:04,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:54:04,863 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 428 transitions. [2024-11-08 18:54:04,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 18:54:04,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:04,864 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:04,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2024-11-08 18:54:05,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:54:05,065 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:05,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:05,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1511091536, now seen corresponding path program 1 times [2024-11-08 18:54:05,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:54:05,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [637101541] [2024-11-08 18:54:05,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:05,066 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:54:05,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:54:05,067 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:54:05,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2024-11-08 18:54:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:05,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 18:54:05,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:54:05,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:54:05,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 26 [2024-11-08 18:54:06,384 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:54:06,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 34 [2024-11-08 18:54:06,762 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:54:06,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 20 [2024-11-08 18:54:06,849 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 218 proven. 24 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-08 18:54:06,849 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:54:07,460 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:54:07,460 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:54:07,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [637101541] [2024-11-08 18:54:07,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [637101541] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:54:07,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:54:07,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2024-11-08 18:54:07,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711320013] [2024-11-08 18:54:07,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:07,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:54:07,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:54:07,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:54:07,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:54:07,462 INFO L87 Difference]: Start difference. First operand 384 states and 428 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:54:08,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:08,319 INFO L93 Difference]: Finished difference Result 746 states and 823 transitions. [2024-11-08 18:54:08,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:54:08,320 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 145 [2024-11-08 18:54:08,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:08,322 INFO L225 Difference]: With dead ends: 746 [2024-11-08 18:54:08,322 INFO L226 Difference]: Without dead ends: 464 [2024-11-08 18:54:08,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2024-11-08 18:54:08,323 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 51 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:08,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 743 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:54:08,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-08 18:54:08,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 384. [2024-11-08 18:54:08,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 297 states have (on average 1.0606060606060606) internal successors, (315), 299 states have internal predecessors, (315), 56 states have call successors, (56), 30 states have call predecessors, (56), 30 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 18:54:08,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 427 transitions. [2024-11-08 18:54:08,413 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 427 transitions. Word has length 145 [2024-11-08 18:54:08,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:08,413 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 427 transitions. [2024-11-08 18:54:08,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:54:08,414 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 427 transitions. [2024-11-08 18:54:08,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 18:54:08,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:08,415 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:08,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2024-11-08 18:54:08,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:54:08,616 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:08,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:08,616 INFO L85 PathProgramCache]: Analyzing trace with hash 302394039, now seen corresponding path program 1 times [2024-11-08 18:54:08,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:54:08,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982035106] [2024-11-08 18:54:08,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:08,617 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:54:08,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:54:08,620 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:54:08,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2024-11-08 18:54:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:09,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-08 18:54:09,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:54:09,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:54:09,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-11-08 18:54:10,208 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:54:10,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 40 [2024-11-08 18:54:10,942 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:54:10,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 56 [2024-11-08 18:54:11,706 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:54:11,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 32 [2024-11-08 18:54:12,264 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 165 proven. 60 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-08 18:54:12,264 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:54:13,457 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:54:13,457 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:54:13,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982035106] [2024-11-08 18:54:13,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982035106] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:54:13,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:54:13,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [23] total 31 [2024-11-08 18:54:13,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108303956] [2024-11-08 18:54:13,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:13,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:54:13,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:54:13,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:54:13,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2024-11-08 18:54:13,460 INFO L87 Difference]: Start difference. First operand 384 states and 427 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:54:15,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:15,187 INFO L93 Difference]: Finished difference Result 751 states and 829 transitions. [2024-11-08 18:54:15,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 18:54:15,188 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 147 [2024-11-08 18:54:15,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:15,190 INFO L225 Difference]: With dead ends: 751 [2024-11-08 18:54:15,190 INFO L226 Difference]: Without dead ends: 469 [2024-11-08 18:54:15,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=132, Invalid=1274, Unknown=0, NotChecked=0, Total=1406 [2024-11-08 18:54:15,191 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 56 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:15,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1459 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 18:54:15,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-08 18:54:15,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 404. [2024-11-08 18:54:15,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 317 states have (on average 1.0630914826498423) internal successors, (337), 319 states have internal predecessors, (337), 56 states have call successors, (56), 30 states have call predecessors, (56), 30 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 18:54:15,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 449 transitions. [2024-11-08 18:54:15,279 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 449 transitions. Word has length 147 [2024-11-08 18:54:15,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:15,280 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 449 transitions. [2024-11-08 18:54:15,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:54:15,280 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 449 transitions. [2024-11-08 18:54:15,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 18:54:15,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:15,281 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:15,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Ended with exit code 0 [2024-11-08 18:54:15,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:54:15,482 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:15,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:15,482 INFO L85 PathProgramCache]: Analyzing trace with hash -977469639, now seen corresponding path program 1 times [2024-11-08 18:54:15,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:54:15,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2120620811] [2024-11-08 18:54:15,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:15,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:54:15,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:54:15,484 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:54:15,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2024-11-08 18:54:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:15,871 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:54:15,873 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:54:15,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-08 18:54:16,005 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:54:16,005 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:54:16,005 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:54:16,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2120620811] [2024-11-08 18:54:16,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2120620811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:16,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:16,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:54:16,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122587164] [2024-11-08 18:54:16,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:16,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:54:16,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:54:16,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:54:16,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:54:16,009 INFO L87 Difference]: Start difference. First operand 404 states and 449 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:54:16,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:16,856 INFO L93 Difference]: Finished difference Result 765 states and 844 transitions. [2024-11-08 18:54:16,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:54:16,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 147 [2024-11-08 18:54:16,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:16,858 INFO L225 Difference]: With dead ends: 765 [2024-11-08 18:54:16,858 INFO L226 Difference]: Without dead ends: 463 [2024-11-08 18:54:16,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:54:16,859 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 42 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:16,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 487 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:54:16,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-08 18:54:16,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 404. [2024-11-08 18:54:16,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 317 states have (on average 1.0567823343848581) internal successors, (335), 319 states have internal predecessors, (335), 56 states have call successors, (56), 30 states have call predecessors, (56), 30 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 18:54:16,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 447 transitions. [2024-11-08 18:54:16,949 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 447 transitions. Word has length 147 [2024-11-08 18:54:16,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:16,950 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 447 transitions. [2024-11-08 18:54:16,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:54:16,950 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 447 transitions. [2024-11-08 18:54:16,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 18:54:16,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:16,952 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:16,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Ended with exit code 0 [2024-11-08 18:54:17,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:54:17,152 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:17,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:17,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1941589259, now seen corresponding path program 1 times [2024-11-08 18:54:17,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:54:17,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [724673918] [2024-11-08 18:54:17,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:17,154 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:54:17,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:54:17,155 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:54:17,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2024-11-08 18:54:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:17,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:54:17,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:54:17,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-08 18:54:17,625 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:54:17,626 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:54:17,626 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:54:17,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [724673918] [2024-11-08 18:54:17,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [724673918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:17,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:17,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:54:17,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504343223] [2024-11-08 18:54:17,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:17,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:54:17,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:54:17,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:54:17,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:54:17,628 INFO L87 Difference]: Start difference. First operand 404 states and 447 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:54:18,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:18,152 INFO L93 Difference]: Finished difference Result 731 states and 804 transitions. [2024-11-08 18:54:18,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:54:18,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 147 [2024-11-08 18:54:18,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:18,156 INFO L225 Difference]: With dead ends: 731 [2024-11-08 18:54:18,156 INFO L226 Difference]: Without dead ends: 429 [2024-11-08 18:54:18,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:54:18,156 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 57 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:18,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 495 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:54:18,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-08 18:54:18,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 385. [2024-11-08 18:54:18,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 298 states have (on average 1.0536912751677852) internal successors, (314), 300 states have internal predecessors, (314), 56 states have call successors, (56), 30 states have call predecessors, (56), 30 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 18:54:18,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 426 transitions. [2024-11-08 18:54:18,245 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 426 transitions. Word has length 147 [2024-11-08 18:54:18,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:18,246 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 426 transitions. [2024-11-08 18:54:18,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:54:18,246 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 426 transitions. [2024-11-08 18:54:18,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 18:54:18,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:18,248 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:18,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Ended with exit code 0 [2024-11-08 18:54:18,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:54:18,448 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:18,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:18,448 INFO L85 PathProgramCache]: Analyzing trace with hash -261098825, now seen corresponding path program 1 times [2024-11-08 18:54:18,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:54:18,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596796619] [2024-11-08 18:54:18,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:18,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:54:18,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:54:18,450 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:54:18,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2024-11-08 18:54:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:18,860 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 18:54:18,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:54:18,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-08 18:54:18,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-08 18:54:19,234 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-08 18:54:19,235 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:54:19,235 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:54:19,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596796619] [2024-11-08 18:54:19,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596796619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:19,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:19,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:54:19,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868909949] [2024-11-08 18:54:19,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:19,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:54:19,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:54:19,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:54:19,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:54:19,236 INFO L87 Difference]: Start difference. First operand 385 states and 426 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:54:20,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:20,784 INFO L93 Difference]: Finished difference Result 855 states and 935 transitions. [2024-11-08 18:54:20,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 18:54:20,784 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 147 [2024-11-08 18:54:20,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:20,786 INFO L225 Difference]: With dead ends: 855 [2024-11-08 18:54:20,786 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 18:54:20,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:54:20,787 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 92 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1949 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:20,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1949 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 18:54:20,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 18:54:20,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 18:54:20,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:54:20,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 18:54:20,789 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 147 [2024-11-08 18:54:20,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:20,790 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 18:54:20,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-08 18:54:20,790 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 18:54:20,790 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 18:54:20,793 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 18:54:20,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Ended with exit code 0 [2024-11-08 18:54:20,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cd37b82-6e3f-4f8b-a20b-2a97bf95a6ea/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:54:20,996 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:20,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 18:54:57,833 WARN L286 SmtUtils]: Spent 36.64s on a formula simplification. DAG size of input: 201 DAG size of output: 201 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 18:55:35,427 WARN L286 SmtUtils]: Spent 37.59s on a formula simplification. DAG size of input: 201 DAG size of output: 201 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 18:56:06,361 WARN L286 SmtUtils]: Spent 30.91s on a formula simplification. DAG size of input: 218 DAG size of output: 218 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 18:56:35,037 WARN L286 SmtUtils]: Spent 28.59s on a formula simplification. DAG size of input: 214 DAG size of output: 214 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 18:57:05,340 WARN L286 SmtUtils]: Spent 30.22s on a formula simplification. DAG size of input: 214 DAG size of output: 214 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 18:57:36,217 WARN L286 SmtUtils]: Spent 30.85s on a formula simplification. DAG size of input: 214 DAG size of output: 214 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 18:58:15,498 WARN L286 SmtUtils]: Spent 39.11s on a formula simplification. DAG size of input: 201 DAG size of output: 201 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 18:58:50,590 WARN L286 SmtUtils]: Spent 35.07s on a formula simplification. DAG size of input: 197 DAG size of output: 197 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 18:59:23,306 WARN L286 SmtUtils]: Spent 32.69s on a formula simplification. DAG size of input: 218 DAG size of output: 218 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 18:59:57,281 WARN L286 SmtUtils]: Spent 33.97s on a formula simplification. DAG size of input: 218 DAG size of output: 218 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:00:37,140 WARN L286 SmtUtils]: Spent 39.80s on a formula simplification. DAG size of input: 197 DAG size of output: 197 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:01:15,714 WARN L286 SmtUtils]: Spent 38.57s on a formula simplification. DAG size of input: 197 DAG size of output: 197 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:02:58,288 WARN L286 SmtUtils]: Spent 1.71m on a formula simplification. DAG size of input: 247 DAG size of output: 257 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 19:04:43,956 WARN L286 SmtUtils]: Spent 1.76m on a formula simplification. DAG size of input: 248 DAG size of output: 258 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)