./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-76.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-76.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme --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 3c9e4d60c6de1cb08a2f723e9da560ca057ed252e0551052818f5b37c6c97569 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:40:50,623 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:40:50,770 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 10:40:50,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:40:50,781 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:40:50,831 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:40:50,832 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:40:50,833 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:40:50,835 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:40:50,841 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:40:50,842 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:40:50,843 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:40:50,845 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:40:50,847 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:40:50,848 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:40:50,848 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:40:50,849 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:40:50,850 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:40:50,851 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:40:50,851 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:40:50,852 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:40:50,853 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:40:50,854 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:40:50,854 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:40:50,855 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:40:50,855 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:40:50,856 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:40:50,857 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:40:50,858 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:40:50,859 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:40:50,860 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:40:50,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:40:50,861 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:40:50,862 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:40:50,862 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:40:50,863 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:40:50,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:40:50,863 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:40:50,864 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:40:50,864 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:40:50,865 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:40:50,865 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:40:50,866 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_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c9e4d60c6de1cb08a2f723e9da560ca057ed252e0551052818f5b37c6c97569 [2023-11-26 10:40:51,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:40:51,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:40:51,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:40:51,305 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:40:51,306 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:40:51,307 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-76.i [2023-11-26 10:40:55,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:40:55,290 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:40:55,291 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-76.i [2023-11-26 10:40:55,302 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/data/f9e3aac05/762efd3243574191a6b1f7f4e63a0d71/FLAG2a25b9eeb [2023-11-26 10:40:55,330 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/data/f9e3aac05/762efd3243574191a6b1f7f4e63a0d71 [2023-11-26 10:40:55,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:40:55,336 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:40:55,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:40:55,338 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:40:55,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:40:55,346 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:40:55" (1/1) ... [2023-11-26 10:40:55,347 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@695d48cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:55, skipping insertion in model container [2023-11-26 10:40:55,347 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:40:55" (1/1) ... [2023-11-26 10:40:55,384 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:40:55,612 WARN L240 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_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-76.i[919,932] [2023-11-26 10:40:55,695 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:40:55,709 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:40:55,723 WARN L240 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_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-76.i[919,932] [2023-11-26 10:40:55,762 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:40:55,785 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:40:55,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:55 WrapperNode [2023-11-26 10:40:55,786 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:40:55,787 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:40:55,787 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:40:55,788 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:40:55,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:55" (1/1) ... [2023-11-26 10:40:55,811 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:55" (1/1) ... [2023-11-26 10:40:55,860 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 147 [2023-11-26 10:40:55,861 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:40:55,862 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:40:55,862 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:40:55,862 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:40:55,877 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:55" (1/1) ... [2023-11-26 10:40:55,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:55" (1/1) ... [2023-11-26 10:40:55,884 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:55" (1/1) ... [2023-11-26 10:40:55,907 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 10:40:55,907 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:55" (1/1) ... [2023-11-26 10:40:55,908 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:55" (1/1) ... [2023-11-26 10:40:55,941 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:55" (1/1) ... [2023-11-26 10:40:55,945 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:55" (1/1) ... [2023-11-26 10:40:55,948 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:55" (1/1) ... [2023-11-26 10:40:55,950 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:55" (1/1) ... [2023-11-26 10:40:55,955 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:40:55,970 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:40:55,970 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:40:55,970 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:40:55,971 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:55" (1/1) ... [2023-11-26 10:40:55,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:40:56,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:40:56,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:40:56,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:40:56,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:40:56,101 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 10:40:56,103 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 10:40:56,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:40:56,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:40:56,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:40:56,274 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:40:56,278 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:40:56,801 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:40:56,859 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:40:56,859 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:40:56,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:40:56 BoogieIcfgContainer [2023-11-26 10:40:56,860 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:40:56,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:40:56,863 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:40:56,867 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:40:56,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:40:55" (1/3) ... [2023-11-26 10:40:56,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55df0922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:40:56, skipping insertion in model container [2023-11-26 10:40:56,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:40:55" (2/3) ... [2023-11-26 10:40:56,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55df0922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:40:56, skipping insertion in model container [2023-11-26 10:40:56,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:40:56" (3/3) ... [2023-11-26 10:40:56,881 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-76.i [2023-11-26 10:40:56,901 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:40:56,901 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:40:56,961 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:40:56,969 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@d9c7f28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:40:56,970 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:40:56,975 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 37 states have (on average 1.5945945945945945) internal successors, (59), 38 states have internal predecessors, (59), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 10:40:56,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-26 10:40:56,992 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:40:56,994 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:40:56,995 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:40:57,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:40:57,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1625622084, now seen corresponding path program 1 times [2023-11-26 10:40:57,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:40:57,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118730110] [2023-11-26 10:40:57,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:40:57,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:40:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:40:57,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:40:57,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118730110] [2023-11-26 10:40:57,309 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-26 10:40:57,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144712806] [2023-11-26 10:40:57,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:40:57,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:40:57,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:40:57,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:40:57,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:40:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:40:57,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 10:40:57,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:40:57,577 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-26 10:40:57,577 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:40:57,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144712806] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:40:57,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:40:57,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:40:57,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66241120] [2023-11-26 10:40:57,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:40:57,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:40:57,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:40:57,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:40:57,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:40:57,628 INFO L87 Difference]: Start difference. First operand has 53 states, 37 states have (on average 1.5945945945945945) internal successors, (59), 38 states have internal predecessors, (59), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-26 10:40:57,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:40:57,676 INFO L93 Difference]: Finished difference Result 101 states and 177 transitions. [2023-11-26 10:40:57,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:40:57,679 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 88 [2023-11-26 10:40:57,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:40:57,691 INFO L225 Difference]: With dead ends: 101 [2023-11-26 10:40:57,691 INFO L226 Difference]: Without dead ends: 49 [2023-11-26 10:40:57,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:40:57,704 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:40:57,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:40:57,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-26 10:40:57,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-26 10:40:57,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 34 states have (on average 1.411764705882353) internal successors, (48), 34 states have internal predecessors, (48), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 10:40:57,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 74 transitions. [2023-11-26 10:40:57,785 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 74 transitions. Word has length 88 [2023-11-26 10:40:57,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:40:57,786 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 74 transitions. [2023-11-26 10:40:57,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-26 10:40:57,787 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 74 transitions. [2023-11-26 10:40:57,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-26 10:40:57,796 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:40:57,797 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:40:57,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:40:58,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-26 10:40:58,005 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:40:58,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:40:58,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1824326134, now seen corresponding path program 1 times [2023-11-26 10:40:58,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:40:58,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936874881] [2023-11-26 10:40:58,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:40:58,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:40:58,099 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:40:58,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [374379011] [2023-11-26 10:40:58,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:40:58,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:40:58,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:40:58,102 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:40:58,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 10:40:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:40:58,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:40:58,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:40:58,654 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-26 10:40:58,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:40:58,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:40:58,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936874881] [2023-11-26 10:40:58,655 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:40:58,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374379011] [2023-11-26 10:40:58,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374379011] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:40:58,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:40:58,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:40:58,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337005313] [2023-11-26 10:40:58,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:40:58,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:40:58,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:40:58,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:40:58,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:40:58,661 INFO L87 Difference]: Start difference. First operand 49 states and 74 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-26 10:40:58,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:40:58,861 INFO L93 Difference]: Finished difference Result 145 states and 220 transitions. [2023-11-26 10:40:58,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:40:58,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 88 [2023-11-26 10:40:58,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:40:58,868 INFO L225 Difference]: With dead ends: 145 [2023-11-26 10:40:58,868 INFO L226 Difference]: Without dead ends: 97 [2023-11-26 10:40:58,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:40:58,875 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 28 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:40:58,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 167 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:40:58,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-26 10:40:58,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2023-11-26 10:40:58,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 66 states have (on average 1.4090909090909092) internal successors, (93), 66 states have internal predecessors, (93), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-26 10:40:58,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 145 transitions. [2023-11-26 10:40:58,934 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 145 transitions. Word has length 88 [2023-11-26 10:40:58,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:40:58,940 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 145 transitions. [2023-11-26 10:40:58,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-26 10:40:58,940 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 145 transitions. [2023-11-26 10:40:58,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-26 10:40:58,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:40:58,954 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:40:58,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:40:59,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:40:59,162 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:40:59,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:40:59,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1661294536, now seen corresponding path program 1 times [2023-11-26 10:40:59,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:40:59,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785350938] [2023-11-26 10:40:59,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:40:59,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:40:59,248 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:40:59,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [501430474] [2023-11-26 10:40:59,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:40:59,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:40:59,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:40:59,257 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:40:59,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 10:40:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:40:59,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-26 10:40:59,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:00,434 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-26 10:41:00,435 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:00,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:00,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785350938] [2023-11-26 10:41:00,436 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:41:00,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501430474] [2023-11-26 10:41:00,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501430474] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:00,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:00,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:41:00,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896851785] [2023-11-26 10:41:00,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:00,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:41:00,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:00,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:41:00,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:41:00,443 INFO L87 Difference]: Start difference. First operand 95 states and 145 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-26 10:41:01,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:01,227 INFO L93 Difference]: Finished difference Result 609 states and 924 transitions. [2023-11-26 10:41:01,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 10:41:01,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 88 [2023-11-26 10:41:01,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:01,239 INFO L225 Difference]: With dead ends: 609 [2023-11-26 10:41:01,240 INFO L226 Difference]: Without dead ends: 515 [2023-11-26 10:41:01,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-26 10:41:01,249 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 434 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:01,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 476 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 10:41:01,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-11-26 10:41:01,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 341. [2023-11-26 10:41:01,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 242 states have (on average 1.4297520661157024) internal successors, (346), 242 states have internal predecessors, (346), 91 states have call successors, (91), 7 states have call predecessors, (91), 7 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2023-11-26 10:41:01,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 528 transitions. [2023-11-26 10:41:01,374 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 528 transitions. Word has length 88 [2023-11-26 10:41:01,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:01,376 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 528 transitions. [2023-11-26 10:41:01,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-26 10:41:01,376 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 528 transitions. [2023-11-26 10:41:01,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-26 10:41:01,379 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:01,380 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:01,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:01,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:01,587 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:01,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:01,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1919459974, now seen corresponding path program 1 times [2023-11-26 10:41:01,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:01,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993424432] [2023-11-26 10:41:01,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:01,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:01,621 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:41:01,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [575348463] [2023-11-26 10:41:01,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:01,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:01,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:01,624 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:01,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 10:41:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:01,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 10:41:01,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:02,035 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-26 10:41:02,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:02,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:02,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993424432] [2023-11-26 10:41:02,037 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:41:02,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575348463] [2023-11-26 10:41:02,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575348463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:02,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:02,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:41:02,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760852629] [2023-11-26 10:41:02,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:02,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:41:02,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:02,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:41:02,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:41:02,044 INFO L87 Difference]: Start difference. First operand 341 states and 528 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-26 10:41:02,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:02,364 INFO L93 Difference]: Finished difference Result 1270 states and 1958 transitions. [2023-11-26 10:41:02,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 10:41:02,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 88 [2023-11-26 10:41:02,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:02,382 INFO L225 Difference]: With dead ends: 1270 [2023-11-26 10:41:02,383 INFO L226 Difference]: Without dead ends: 930 [2023-11-26 10:41:02,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:41:02,391 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 143 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:02,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 561 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:41:02,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2023-11-26 10:41:02,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 496. [2023-11-26 10:41:02,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 369 states have (on average 1.4769647696476964) internal successors, (545), 369 states have internal predecessors, (545), 117 states have call successors, (117), 9 states have call predecessors, (117), 9 states have return successors, (117), 117 states have call predecessors, (117), 117 states have call successors, (117) [2023-11-26 10:41:02,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 779 transitions. [2023-11-26 10:41:02,522 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 779 transitions. Word has length 88 [2023-11-26 10:41:02,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:02,525 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 779 transitions. [2023-11-26 10:41:02,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-26 10:41:02,525 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 779 transitions. [2023-11-26 10:41:02,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-26 10:41:02,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:02,530 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:02,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:02,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:02,738 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:02,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:02,739 INFO L85 PathProgramCache]: Analyzing trace with hash 920525448, now seen corresponding path program 1 times [2023-11-26 10:41:02,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:02,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907038144] [2023-11-26 10:41:02,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:02,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:02,798 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:41:02,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2110520571] [2023-11-26 10:41:02,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:02,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:02,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:02,801 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:02,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 10:41:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:03,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-26 10:41:03,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:03,756 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-26 10:41:03,759 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:03,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:03,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907038144] [2023-11-26 10:41:03,760 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:41:03,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110520571] [2023-11-26 10:41:03,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110520571] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:03,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:03,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 10:41:03,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393380125] [2023-11-26 10:41:03,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:03,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:41:03,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:03,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:41:03,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:41:03,770 INFO L87 Difference]: Start difference. First operand 496 states and 779 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-26 10:41:04,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:04,560 INFO L93 Difference]: Finished difference Result 812 states and 1243 transitions. [2023-11-26 10:41:04,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 10:41:04,561 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 89 [2023-11-26 10:41:04,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:04,568 INFO L225 Difference]: With dead ends: 812 [2023-11-26 10:41:04,569 INFO L226 Difference]: Without dead ends: 718 [2023-11-26 10:41:04,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:41:04,571 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 417 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:04,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 472 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 10:41:04,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2023-11-26 10:41:04,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 492. [2023-11-26 10:41:04,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 365 states have (on average 1.4767123287671233) internal successors, (539), 365 states have internal predecessors, (539), 117 states have call successors, (117), 9 states have call predecessors, (117), 9 states have return successors, (117), 117 states have call predecessors, (117), 117 states have call successors, (117) [2023-11-26 10:41:04,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 773 transitions. [2023-11-26 10:41:04,708 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 773 transitions. Word has length 89 [2023-11-26 10:41:04,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:04,709 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 773 transitions. [2023-11-26 10:41:04,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-26 10:41:04,709 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 773 transitions. [2023-11-26 10:41:04,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-26 10:41:04,711 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:04,711 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:04,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:04,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:04,919 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:04,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:04,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1232559022, now seen corresponding path program 1 times [2023-11-26 10:41:04,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:04,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817271191] [2023-11-26 10:41:04,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:04,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:04,970 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:41:04,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [321290073] [2023-11-26 10:41:04,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:04,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:04,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:04,981 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:04,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 10:41:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:05,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:41:05,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:05,172 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-26 10:41:05,173 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:05,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:05,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817271191] [2023-11-26 10:41:05,174 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:41:05,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321290073] [2023-11-26 10:41:05,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321290073] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:05,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:05,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:41:05,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954134628] [2023-11-26 10:41:05,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:05,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:05,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:05,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:05,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:05,177 INFO L87 Difference]: Start difference. First operand 492 states and 773 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-26 10:41:05,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:05,279 INFO L93 Difference]: Finished difference Result 1207 states and 1900 transitions. [2023-11-26 10:41:05,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:05,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 89 [2023-11-26 10:41:05,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:05,287 INFO L225 Difference]: With dead ends: 1207 [2023-11-26 10:41:05,287 INFO L226 Difference]: Without dead ends: 716 [2023-11-26 10:41:05,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:05,291 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 19 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:05,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 128 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:41:05,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2023-11-26 10:41:05,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 633. [2023-11-26 10:41:05,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 506 states have (on average 1.492094861660079) internal successors, (755), 506 states have internal predecessors, (755), 117 states have call successors, (117), 9 states have call predecessors, (117), 9 states have return successors, (117), 117 states have call predecessors, (117), 117 states have call successors, (117) [2023-11-26 10:41:05,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 989 transitions. [2023-11-26 10:41:05,386 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 989 transitions. Word has length 89 [2023-11-26 10:41:05,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:05,388 INFO L495 AbstractCegarLoop]: Abstraction has 633 states and 989 transitions. [2023-11-26 10:41:05,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-26 10:41:05,389 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 989 transitions. [2023-11-26 10:41:05,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-26 10:41:05,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:05,391 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:05,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:05,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-26 10:41:05,599 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:05,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:05,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1289817324, now seen corresponding path program 1 times [2023-11-26 10:41:05,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:05,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364543955] [2023-11-26 10:41:05,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:05,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:05,645 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:41:05,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1241684135] [2023-11-26 10:41:05,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:05,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:05,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:05,653 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:05,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 10:41:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:41:05,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:41:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:41:05,934 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:41:05,935 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:41:05,936 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 10:41:05,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:06,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:06,148 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:06,151 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:41:06,256 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-26 10:41:06,278 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated [2023-11-26 10:41:06,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:41:06 BoogieIcfgContainer [2023-11-26 10:41:06,317 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:41:06,318 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:41:06,318 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:41:06,319 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:41:06,324 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:40:56" (3/4) ... [2023-11-26 10:41:06,327 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:41:06,328 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:41:06,329 INFO L158 Benchmark]: Toolchain (without parser) took 10993.80ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 132.9MB in the beginning and 74.0MB in the end (delta: 58.9MB). Peak memory consumption was 96.3MB. Max. memory is 16.1GB. [2023-11-26 10:41:06,330 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:41:06,330 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.72ms. Allocated memory is still 178.3MB. Free memory was 132.6MB in the beginning and 119.4MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 10:41:06,331 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.07ms. Allocated memory is still 178.3MB. Free memory was 118.9MB in the beginning and 116.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:41:06,331 INFO L158 Benchmark]: Boogie Preprocessor took 106.83ms. Allocated memory is still 178.3MB. Free memory was 116.2MB in the beginning and 112.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:41:06,331 INFO L158 Benchmark]: RCFGBuilder took 890.65ms. Allocated memory is still 178.3MB. Free memory was 112.0MB in the beginning and 142.5MB in the end (delta: -30.5MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2023-11-26 10:41:06,334 INFO L158 Benchmark]: TraceAbstraction took 9454.69ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 141.5MB in the beginning and 74.0MB in the end (delta: 67.5MB). Peak memory consumption was 103.1MB. Max. memory is 16.1GB. [2023-11-26 10:41:06,335 INFO L158 Benchmark]: Witness Printer took 10.37ms. Allocated memory is still 213.9MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:41:06,339 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 448.72ms. Allocated memory is still 178.3MB. Free memory was 132.6MB in the beginning and 119.4MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.07ms. Allocated memory is still 178.3MB. Free memory was 118.9MB in the beginning and 116.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 106.83ms. Allocated memory is still 178.3MB. Free memory was 116.2MB in the beginning and 112.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 890.65ms. Allocated memory is still 178.3MB. Free memory was 112.0MB in the beginning and 142.5MB in the end (delta: -30.5MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9454.69ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 141.5MB in the beginning and 74.0MB in the end (delta: 67.5MB). Peak memory consumption was 103.1MB. Max. memory is 16.1GB. * Witness Printer took 10.37ms. Allocated memory is still 213.9MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 someBinaryDOUBLEComparisonOperation at line 120, overapproximation of someBinaryFLOATComparisonOperation at line 120. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 256.5; [L23] unsigned char var_1_2 = 0; [L24] double var_1_3 = 7.5; [L25] double var_1_4 = 256.2; [L26] double var_1_5 = 2.75; [L27] signed long int var_1_6 = -64; [L28] double var_1_7 = 8.05; [L29] float var_1_8 = 5.25; [L30] signed long int var_1_11 = 4; [L31] unsigned short int var_1_14 = 10000; [L32] unsigned short int var_1_16 = 5; [L33] unsigned short int var_1_17 = 4; [L34] unsigned char var_1_18 = 100; [L35] unsigned char var_1_19 = 1; [L36] unsigned char var_1_20 = 8; [L37] double last_1_var_1_1 = 256.5; [L38] float last_1_var_1_8 = 5.25; [L39] signed long int last_1_var_1_11 = 4; [L40] unsigned short int last_1_var_1_14 = 10000; [L41] unsigned short int last_1_var_1_17 = 4; [L42] unsigned char last_1_var_1_18 = 100; [L124] isInitial = 1 [L125] FCALL initially() [L126] COND TRUE 1 [L127] CALL updateLastVariables() [L112] last_1_var_1_1 = var_1_1 [L113] last_1_var_1_8 = var_1_8 [L114] last_1_var_1_11 = var_1_11 [L115] last_1_var_1_14 = var_1_14 [L116] last_1_var_1_17 = var_1_17 [L117] last_1_var_1_18 = var_1_18 [L127] RET updateLastVariables() [L128] CALL updateVariables() [L89] var_1_2 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_3=15/2, var_1_4=1281/5, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_3=15/2, var_1_4=1281/5, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L90] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_3=15/2, var_1_4=1281/5, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L91] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=15/2, var_1_4=1281/5, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=15/2, var_1_4=1281/5, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L91] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=15/2, var_1_4=1281/5, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L92] var_1_3 = __VERIFIER_nondet_double() [L93] CALL assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_4=1281/5, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_4=1281/5, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L93] RET assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_4=1281/5, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L94] var_1_4 = __VERIFIER_nondet_double() [L95] CALL assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L95] RET assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L96] var_1_5 = __VERIFIER_nondet_double() [L97] CALL assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L97] RET assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L98] var_1_7 = __VERIFIER_nondet_double() [L99] CALL assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L99] RET assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L100] CALL assume_abort_if_not(var_1_7 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L100] RET assume_abort_if_not(var_1_7 != 0.0F) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L101] var_1_16 = __VERIFIER_nondet_ushort() [L102] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L102] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L103] CALL assume_abort_if_not(var_1_16 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=0, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=0, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L103] RET assume_abort_if_not(var_1_16 <= 65534) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=0, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L104] var_1_19 = __VERIFIER_nondet_uchar() [L105] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=0, var_1_17=4, var_1_18=100, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=0, var_1_17=4, var_1_18=100, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L105] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=0, var_1_17=4, var_1_18=100, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L106] CALL assume_abort_if_not(var_1_19 <= 64) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=0, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=0, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L106] RET assume_abort_if_not(var_1_19 <= 64) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=0, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L107] var_1_20 = __VERIFIER_nondet_uchar() [L108] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=0, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=0, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L108] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=0, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L109] CALL assume_abort_if_not(var_1_20 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=0, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=63, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=0, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=63, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L109] RET assume_abort_if_not(var_1_20 <= 63) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=0, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=63, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L128] RET updateVariables() [L129] CALL step() [L46] COND FALSE !(\read(var_1_2)) [L55] var_1_17 = last_1_var_1_18 VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=0, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=63, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L57] COND TRUE var_1_4 <= last_1_var_1_1 [L58] var_1_11 = (last_1_var_1_14 + -128) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=9872, var_1_14=10000, var_1_16=0, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=63, var_1_2=0, var_1_6=-64, var_1_8=21/4] [L62] COND TRUE ! var_1_2 [L63] var_1_1 = ((((((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) < (var_1_5)) ? (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) : (var_1_5))) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=9872, var_1_14=10000, var_1_16=0, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=2, var_1_20=63, var_1_2=0, var_1_3=2, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_8=21/4] [L67] COND FALSE !(var_1_5 > (var_1_3 / var_1_7)) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=9872, var_1_14=10000, var_1_16=0, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=2, var_1_20=63, var_1_2=0, var_1_3=2, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_8=21/4] [L72] EXPR var_1_6 | var_1_6 VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=9872, var_1_14=10000, var_1_16=0, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=2, var_1_20=63, var_1_2=0, var_1_3=2, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_8=21/4] [L72] COND FALSE !((var_1_6 + (var_1_6 | var_1_6)) > var_1_16) [L75] COND FALSE !(var_1_5 >= var_1_1) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=9872, var_1_14=10000, var_1_16=0, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=2, var_1_20=63, var_1_2=0, var_1_3=2, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_8=21/4] [L82] COND TRUE (var_1_14 * var_1_17) >= var_1_11 VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=9872, var_1_14=10000, var_1_16=0, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=2, var_1_20=63, var_1_2=0, var_1_3=2, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_8=21/4] [L83] COND FALSE !(\read(var_1_2)) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=9872, var_1_14=10000, var_1_16=0, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=2, var_1_20=63, var_1_2=0, var_1_3=2, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_8=21/4] [L129] RET step() [L130] CALL, EXPR property() [L120] EXPR (((((((! var_1_2) ? (var_1_1 == ((double) ((((((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) < (var_1_5)) ? (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) : (var_1_5))))) : (var_1_1 == ((double) var_1_4))) && ((var_1_5 > (var_1_3 / var_1_7)) ? ((! var_1_2) ? (var_1_6 == ((signed long int) -10)) : 1) : 1)) && (((var_1_14 * var_1_17) >= var_1_11) ? (var_1_2 ? (var_1_8 == ((float) var_1_4)) : 1) : 1)) && ((var_1_4 <= last_1_var_1_1) ? (var_1_11 == ((signed long int) (last_1_var_1_14 + -128))) : (var_1_11 == ((signed long int) (((((-256) < (last_1_var_1_14)) ? (-256) : (last_1_var_1_14))) + ((((last_1_var_1_17) < (((((last_1_var_1_17) > (256)) ? (last_1_var_1_17) : (256))))) ? (last_1_var_1_17) : (((((last_1_var_1_17) > (256)) ? (last_1_var_1_17) : (256))))))))))) && ((var_1_5 >= var_1_1) ? ((((((1.2) < 0 ) ? -(1.2) : (1.2))) < var_1_4) ? (var_1_14 == ((unsigned short int) var_1_18)) : (var_1_14 == ((unsigned short int) var_1_18))) : 1)) && (var_1_2 ? ((last_1_var_1_8 == var_1_5) ? (((128 * ((((last_1_var_1_18) < (last_1_var_1_11)) ? (last_1_var_1_18) : (last_1_var_1_11)))) > 1) ? (var_1_17 == ((unsigned short int) last_1_var_1_18)) : 1) : (var_1_17 == ((unsigned short int) last_1_var_1_18))) : (var_1_17 == ((unsigned short int) last_1_var_1_18)))) && (((var_1_6 + (var_1_6 | var_1_6)) > var_1_16) ? (var_1_18 == ((unsigned char) (128 - (var_1_19 + var_1_20)))) : 1) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=9872, var_1_14=10000, var_1_16=0, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=2, var_1_20=63, var_1_2=0, var_1_3=2, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_8=21/4] [L120-L121] return (((((((! var_1_2) ? (var_1_1 == ((double) ((((((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) < (var_1_5)) ? (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) : (var_1_5))))) : (var_1_1 == ((double) var_1_4))) && ((var_1_5 > (var_1_3 / var_1_7)) ? ((! var_1_2) ? (var_1_6 == ((signed long int) -10)) : 1) : 1)) && (((var_1_14 * var_1_17) >= var_1_11) ? (var_1_2 ? (var_1_8 == ((float) var_1_4)) : 1) : 1)) && ((var_1_4 <= last_1_var_1_1) ? (var_1_11 == ((signed long int) (last_1_var_1_14 + -128))) : (var_1_11 == ((signed long int) (((((-256) < (last_1_var_1_14)) ? (-256) : (last_1_var_1_14))) + ((((last_1_var_1_17) < (((((last_1_var_1_17) > (256)) ? (last_1_var_1_17) : (256))))) ? (last_1_var_1_17) : (((((last_1_var_1_17) > (256)) ? (last_1_var_1_17) : (256))))))))))) && ((var_1_5 >= var_1_1) ? ((((((1.2) < 0 ) ? -(1.2) : (1.2))) < var_1_4) ? (var_1_14 == ((unsigned short int) var_1_18)) : (var_1_14 == ((unsigned short int) var_1_18))) : 1)) && (var_1_2 ? ((last_1_var_1_8 == var_1_5) ? (((128 * ((((last_1_var_1_18) < (last_1_var_1_11)) ? (last_1_var_1_18) : (last_1_var_1_11)))) > 1) ? (var_1_17 == ((unsigned short int) last_1_var_1_18)) : 1) : (var_1_17 == ((unsigned short int) last_1_var_1_18))) : (var_1_17 == ((unsigned short int) last_1_var_1_18)))) && (((var_1_6 + (var_1_6 | var_1_6)) > var_1_16) ? (var_1_18 == ((unsigned char) (128 - (var_1_19 + var_1_20)))) : 1) ; [L130] RET, EXPR property() [L130] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=9872, var_1_14=10000, var_1_16=0, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=2, var_1_20=63, var_1_2=0, var_1_3=2, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_8=21/4] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=9872, var_1_14=10000, var_1_16=0, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=2, var_1_20=63, var_1_2=0, var_1_3=2, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_8=21/4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 53 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.2s, OverallIterations: 7, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1041 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1041 mSDsluCounter, 1875 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1141 mSDsCounter, 311 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 796 IncrementalHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 311 mSolverCounterUnsat, 734 mSDtfsCounter, 796 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 539 GetRequests, 509 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=633occurred in iteration=6, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 919 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 707 NumberOfCodeBlocks, 707 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 524 ConstructedInterpolants, 0 QuantifiedInterpolants, 2535 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1414 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 1872/1872 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 [2023-11-26 10:41:06,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-76.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme --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 3c9e4d60c6de1cb08a2f723e9da560ca057ed252e0551052818f5b37c6c97569 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:41:09,205 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:41:09,283 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 10:41:09,290 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:41:09,291 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:41:09,320 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:41:09,321 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:41:09,322 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:41:09,322 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:41:09,323 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:41:09,324 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:41:09,324 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:41:09,325 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:41:09,326 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:41:09,326 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:41:09,327 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:41:09,328 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:41:09,328 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:41:09,329 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:41:09,330 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:41:09,330 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:41:09,331 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:41:09,332 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:41:09,332 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 10:41:09,333 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 10:41:09,333 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 10:41:09,334 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:41:09,335 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:41:09,335 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:41:09,336 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:41:09,336 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:41:09,337 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:41:09,337 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:41:09,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:41:09,338 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:41:09,339 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:41:09,339 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:41:09,340 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 10:41:09,340 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 10:41:09,341 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:41:09,341 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:41:09,341 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:41:09,342 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:41:09,342 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:41:09,342 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 10:41:09,342 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_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c9e4d60c6de1cb08a2f723e9da560ca057ed252e0551052818f5b37c6c97569 [2023-11-26 10:41:09,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:41:09,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:41:09,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:41:09,763 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:41:09,763 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:41:09,765 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-76.i [2023-11-26 10:41:13,054 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:41:13,304 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:41:13,305 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-76.i [2023-11-26 10:41:13,316 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/data/951a4d099/bb757988d51841b5b0d3b058f175aa69/FLAGa01c4f6b1 [2023-11-26 10:41:13,335 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/data/951a4d099/bb757988d51841b5b0d3b058f175aa69 [2023-11-26 10:41:13,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:41:13,344 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:41:13,349 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:41:13,349 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:41:13,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:41:13,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:41:13" (1/1) ... [2023-11-26 10:41:13,366 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@105c913f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:13, skipping insertion in model container [2023-11-26 10:41:13,366 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:41:13" (1/1) ... [2023-11-26 10:41:13,423 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:41:13,654 WARN L240 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_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-76.i[919,932] [2023-11-26 10:41:13,735 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:41:13,769 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:41:13,793 WARN L240 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_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-76.i[919,932] [2023-11-26 10:41:13,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:41:13,880 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:41:13,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:13 WrapperNode [2023-11-26 10:41:13,881 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:41:13,883 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:41:13,883 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:41:13,883 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:41:13,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:13" (1/1) ... [2023-11-26 10:41:13,920 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:13" (1/1) ... [2023-11-26 10:41:13,981 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 122 [2023-11-26 10:41:13,983 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:41:13,984 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:41:13,985 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:41:13,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:41:14,001 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:13" (1/1) ... [2023-11-26 10:41:14,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:13" (1/1) ... [2023-11-26 10:41:14,020 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:13" (1/1) ... [2023-11-26 10:41:14,051 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 10:41:14,059 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:13" (1/1) ... [2023-11-26 10:41:14,059 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:13" (1/1) ... [2023-11-26 10:41:14,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:13" (1/1) ... [2023-11-26 10:41:14,108 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:13" (1/1) ... [2023-11-26 10:41:14,120 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:13" (1/1) ... [2023-11-26 10:41:14,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:13" (1/1) ... [2023-11-26 10:41:14,127 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:41:14,134 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:41:14,135 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:41:14,135 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:41:14,136 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:13" (1/1) ... [2023-11-26 10:41:14,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:41:14,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:14,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:41:14,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:41:14,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:41:14,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 10:41:14,236 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 10:41:14,237 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 10:41:14,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:41:14,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:41:14,382 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:41:14,385 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:41:25,209 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:41:25,274 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:41:25,274 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:41:25,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:25 BoogieIcfgContainer [2023-11-26 10:41:25,275 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:41:25,278 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:41:25,278 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:41:25,282 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:41:25,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:41:13" (1/3) ... [2023-11-26 10:41:25,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc9e67d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:41:25, skipping insertion in model container [2023-11-26 10:41:25,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:13" (2/3) ... [2023-11-26 10:41:25,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc9e67d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:41:25, skipping insertion in model container [2023-11-26 10:41:25,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:25" (3/3) ... [2023-11-26 10:41:25,286 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-76.i [2023-11-26 10:41:25,309 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:41:25,310 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:41:25,369 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:41:25,377 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5eef3d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:41:25,378 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:41:25,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 31 states have internal predecessors, (47), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 10:41:25,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-26 10:41:25,396 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:25,397 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:25,398 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:25,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:25,404 INFO L85 PathProgramCache]: Analyzing trace with hash -683049820, now seen corresponding path program 1 times [2023-11-26 10:41:25,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:41:25,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358585219] [2023-11-26 10:41:25,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:25,421 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 [2023-11-26 10:41:25,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:41:25,424 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 10:41:25,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 10:41:26,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:26,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 10:41:26,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:26,690 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-26 10:41:26,690 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:26,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:41:26,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358585219] [2023-11-26 10:41:26,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358585219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:26,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:26,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:26,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706588125] [2023-11-26 10:41:26,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:26,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:41:26,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:41:26,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:41:26,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:41:26,742 INFO L87 Difference]: Start difference. First operand has 46 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 31 states have internal predecessors, (47), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-26 10:41:31,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:41:31,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:31,679 INFO L93 Difference]: Finished difference Result 89 states and 157 transitions. [2023-11-26 10:41:31,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:41:31,931 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 85 [2023-11-26 10:41:31,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:31,941 INFO L225 Difference]: With dead ends: 89 [2023-11-26 10:41:31,941 INFO L226 Difference]: Without dead ends: 44 [2023-11-26 10:41:31,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:41:31,956 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:31,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2023-11-26 10:41:31,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-26 10:41:32,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-26 10:41:32,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 29 states have internal predecessors, (42), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 10:41:32,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 68 transitions. [2023-11-26 10:41:32,024 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 68 transitions. Word has length 85 [2023-11-26 10:41:32,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:32,025 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 68 transitions. [2023-11-26 10:41:32,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-26 10:41:32,025 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 68 transitions. [2023-11-26 10:41:32,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-26 10:41:32,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:32,030 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:32,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/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)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:32,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 10:41:32,231 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:32,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:32,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1442187934, now seen corresponding path program 1 times [2023-11-26 10:41:32,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:41:32,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1800433833] [2023-11-26 10:41:32,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:32,234 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 [2023-11-26 10:41:32,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:41:32,259 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 10:41:32,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 10:41:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:33,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:41:33,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:34,843 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-26 10:41:34,843 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:34,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:41:34,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1800433833] [2023-11-26 10:41:34,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1800433833] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:34,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:34,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:34,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261991643] [2023-11-26 10:41:34,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:34,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:34,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:41:34,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:34,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:34,850 INFO L87 Difference]: Start difference. First operand 44 states and 68 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-26 10:41:39,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:41:43,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:41:47,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:41:48,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:48,085 INFO L93 Difference]: Finished difference Result 130 states and 202 transitions. [2023-11-26 10:41:48,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:48,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 85 [2023-11-26 10:41:48,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:48,094 INFO L225 Difference]: With dead ends: 130 [2023-11-26 10:41:48,097 INFO L226 Difference]: Without dead ends: 87 [2023-11-26 10:41:48,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:48,101 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 23 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:48,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 126 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 3 Unknown, 0 Unchecked, 13.2s Time] [2023-11-26 10:41:48,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-26 10:41:48,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2023-11-26 10:41:48,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 56 states have (on average 1.4464285714285714) internal successors, (81), 56 states have internal predecessors, (81), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-26 10:41:48,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 133 transitions. [2023-11-26 10:41:48,159 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 133 transitions. Word has length 85 [2023-11-26 10:41:48,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:48,160 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 133 transitions. [2023-11-26 10:41:48,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-26 10:41:48,162 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 133 transitions. [2023-11-26 10:41:48,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-26 10:41:48,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:48,165 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:48,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/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)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:48,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 10:41:48,383 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:48,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:48,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1499446236, now seen corresponding path program 1 times [2023-11-26 10:41:48,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:41:48,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320306872] [2023-11-26 10:41:48,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:48,385 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 [2023-11-26 10:41:48,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:41:48,387 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 10:41:48,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fe44d67-91c1-4ae3-93c1-19be8d5fce04/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 10:41:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:49,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 10:41:49,404 INFO L285 TraceCheckSpWp]: Computing forward predicates...