./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-72.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/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_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-72.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/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_53f53093-964b-4678-ad60-fd5d3f880289/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 b545584bd88f47093962ebc7c26b6e47720a32713ab794e33d897c38ad3103bb --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:02:18,968 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:02:19,107 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 12:02:19,115 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:02:19,116 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:02:19,162 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:02:19,163 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:02:19,164 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:02:19,165 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:02:19,171 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:02:19,172 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:02:19,173 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:02:19,174 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:02:19,177 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:02:19,177 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:02:19,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:02:19,178 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:02:19,179 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:02:19,179 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:02:19,180 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:02:19,180 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:02:19,181 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:02:19,181 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:02:19,182 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:02:19,182 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:02:19,183 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:02:19,183 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:02:19,184 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:02:19,185 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:02:19,185 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:02:19,187 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:02:19,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:19,187 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:02:19,188 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:02:19,188 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:02:19,188 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:02:19,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:02:19,189 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:02:19,189 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:02:19,190 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:02:19,190 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:02:19,190 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:02:19,191 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_53f53093-964b-4678-ad60-fd5d3f880289/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b545584bd88f47093962ebc7c26b6e47720a32713ab794e33d897c38ad3103bb [2023-11-26 12:02:19,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:02:19,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:02:19,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:02:19,565 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:02:19,566 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:02:19,567 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-72.i [2023-11-26 12:02:22,793 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:02:23,155 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:02:23,157 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-72.i [2023-11-26 12:02:23,174 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/data/ecdd31ee3/8b9b4f41ebcb495b8215c9ad69858239/FLAG3794b1e02 [2023-11-26 12:02:23,196 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/data/ecdd31ee3/8b9b4f41ebcb495b8215c9ad69858239 [2023-11-26 12:02:23,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:02:23,205 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:02:23,209 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:23,210 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:02:23,217 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:02:23,218 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:23" (1/1) ... [2023-11-26 12:02:23,219 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22135e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:23, skipping insertion in model container [2023-11-26 12:02:23,220 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:23" (1/1) ... [2023-11-26 12:02:23,278 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:02:23,528 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_53f53093-964b-4678-ad60-fd5d3f880289/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-72.i[919,932] [2023-11-26 12:02:23,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:23,668 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:02:23,686 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_53f53093-964b-4678-ad60-fd5d3f880289/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-72.i[919,932] [2023-11-26 12:02:23,733 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:23,765 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:02:23,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:23 WrapperNode [2023-11-26 12:02:23,766 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:23,768 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:23,768 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:02:23,768 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:02:23,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:23" (1/1) ... [2023-11-26 12:02:23,809 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:23" (1/1) ... [2023-11-26 12:02:23,879 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 135 [2023-11-26 12:02:23,879 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:23,880 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:02:23,883 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:02:23,884 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:02:23,896 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:23" (1/1) ... [2023-11-26 12:02:23,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:23" (1/1) ... [2023-11-26 12:02:23,899 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:23" (1/1) ... [2023-11-26 12:02:23,940 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 12:02:23,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:23" (1/1) ... [2023-11-26 12:02:23,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:23" (1/1) ... [2023-11-26 12:02:23,963 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:23" (1/1) ... [2023-11-26 12:02:23,968 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:23" (1/1) ... [2023-11-26 12:02:23,971 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:23" (1/1) ... [2023-11-26 12:02:23,974 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:23" (1/1) ... [2023-11-26 12:02:23,978 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:02:23,980 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:02:23,980 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:02:23,980 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:02:23,981 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:23" (1/1) ... [2023-11-26 12:02:23,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:24,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:24,027 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:24,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:02:24,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:02:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 12:02:24,092 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 12:02:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:02:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:02:24,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:02:24,239 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:02:24,242 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:02:24,701 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:02:24,763 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:02:24,764 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:02:24,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:24 BoogieIcfgContainer [2023-11-26 12:02:24,766 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:02:24,769 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:02:24,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:02:24,774 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:02:24,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:02:23" (1/3) ... [2023-11-26 12:02:24,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38329357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:24, skipping insertion in model container [2023-11-26 12:02:24,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:23" (2/3) ... [2023-11-26 12:02:24,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38329357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:24, skipping insertion in model container [2023-11-26 12:02:24,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:24" (3/3) ... [2023-11-26 12:02:24,781 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-72.i [2023-11-26 12:02:24,804 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:02:24,804 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:02:24,882 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:02:24,896 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;@4919ba75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:02:24,896 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:02:24,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 32 states have internal predecessors, (45), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-26 12:02:24,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-26 12:02:24,920 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:24,921 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:24,922 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:24,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:24,929 INFO L85 PathProgramCache]: Analyzing trace with hash 191248627, now seen corresponding path program 1 times [2023-11-26 12:02:24,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:24,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132517992] [2023-11-26 12:02:24,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:24,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:25,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:25,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132517992] [2023-11-26 12:02:25,278 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-26 12:02:25,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156185079] [2023-11-26 12:02:25,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:25,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:25,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:25,285 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:02:25,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 12:02:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:25,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 12:02:25,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:25,585 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2023-11-26 12:02:25,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:02:25,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156185079] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:25,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:25,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:25,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575570591] [2023-11-26 12:02:25,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:25,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:02:25,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:25,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:02:25,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:02:25,652 INFO L87 Difference]: Start difference. First operand has 51 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 32 states have internal predecessors, (45), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-26 12:02:25,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:25,716 INFO L93 Difference]: Finished difference Result 99 states and 173 transitions. [2023-11-26 12:02:25,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:02:25,719 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 107 [2023-11-26 12:02:25,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:25,729 INFO L225 Difference]: With dead ends: 99 [2023-11-26 12:02:25,730 INFO L226 Difference]: Without dead ends: 49 [2023-11-26 12:02:25,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 106 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 12:02:25,738 INFO L413 NwaCegarLoop]: 70 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, 70 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 12:02:25,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:02:25,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-26 12:02:25,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-26 12:02:25,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.3) internal successors, (39), 30 states have internal predecessors, (39), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-26 12:02:25,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 73 transitions. [2023-11-26 12:02:25,792 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 73 transitions. Word has length 107 [2023-11-26 12:02:25,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:25,793 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 73 transitions. [2023-11-26 12:02:25,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-26 12:02:25,794 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 73 transitions. [2023-11-26 12:02:25,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-26 12:02:25,801 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:25,802 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:25,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 12:02:26,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-26 12:02:26,010 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:26,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:26,011 INFO L85 PathProgramCache]: Analyzing trace with hash -766413323, now seen corresponding path program 1 times [2023-11-26 12:02:26,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:26,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314316616] [2023-11-26 12:02:26,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:26,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:26,087 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:02:26,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1163101147] [2023-11-26 12:02:26,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:26,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:26,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:26,096 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:02:26,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 12:02:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:26,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:02:26,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:26,546 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 246 proven. 33 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2023-11-26 12:02:26,547 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:02:26,755 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 15 proven. 33 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-11-26 12:02:26,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:26,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314316616] [2023-11-26 12:02:26,756 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:02:26,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163101147] [2023-11-26 12:02:26,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163101147] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:02:26,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:02:26,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-26 12:02:26,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405931753] [2023-11-26 12:02:26,758 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:02:26,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:02:26,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:26,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:02:26,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:02:26,765 INFO L87 Difference]: Start difference. First operand 49 states and 73 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-26 12:02:27,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:27,062 INFO L93 Difference]: Finished difference Result 112 states and 164 transitions. [2023-11-26 12:02:27,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 12:02:27,063 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 107 [2023-11-26 12:02:27,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:27,066 INFO L225 Difference]: With dead ends: 112 [2023-11-26 12:02:27,066 INFO L226 Difference]: Without dead ends: 64 [2023-11-26 12:02:27,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 206 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-26 12:02:27,069 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 31 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:27,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 138 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:02:27,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-11-26 12:02:27,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 61. [2023-11-26 12:02:27,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 37 states have internal predecessors, (44), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-26 12:02:27,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 88 transitions. [2023-11-26 12:02:27,095 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 88 transitions. Word has length 107 [2023-11-26 12:02:27,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:27,096 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 88 transitions. [2023-11-26 12:02:27,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-26 12:02:27,097 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 88 transitions. [2023-11-26 12:02:27,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-26 12:02:27,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:27,099 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:27,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 12:02:27,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:27,306 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:27,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:27,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1008594039, now seen corresponding path program 1 times [2023-11-26 12:02:27,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:27,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096078330] [2023-11-26 12:02:27,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:27,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:27,408 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:02:27,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [392527265] [2023-11-26 12:02:27,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:27,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:27,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:27,413 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:02:27,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 12:02:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:27,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:02:27,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:27,661 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-26 12:02:27,662 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:02:27,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:27,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096078330] [2023-11-26 12:02:27,662 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:02:27,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392527265] [2023-11-26 12:02:27,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392527265] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:27,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:27,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:02:27,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304363315] [2023-11-26 12:02:27,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:27,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:27,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:27,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:27,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:27,679 INFO L87 Difference]: Start difference. First operand 61 states and 88 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-26 12:02:27,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:27,757 INFO L93 Difference]: Finished difference Result 165 states and 236 transitions. [2023-11-26 12:02:27,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:27,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 107 [2023-11-26 12:02:27,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:27,767 INFO L225 Difference]: With dead ends: 165 [2023-11-26 12:02:27,768 INFO L226 Difference]: Without dead ends: 113 [2023-11-26 12:02:27,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 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 12:02:27,772 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 64 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:27,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 129 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:02:27,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-26 12:02:27,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 106. [2023-11-26 12:02:27,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 62 states have (on average 1.1774193548387097) internal successors, (73), 64 states have internal predecessors, (73), 39 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-26 12:02:27,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 151 transitions. [2023-11-26 12:02:27,844 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 151 transitions. Word has length 107 [2023-11-26 12:02:27,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:27,846 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 151 transitions. [2023-11-26 12:02:27,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-26 12:02:27,847 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 151 transitions. [2023-11-26 12:02:27,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-26 12:02:27,859 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:27,860 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:27,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 12:02:28,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:28,069 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:28,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:28,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1758835694, now seen corresponding path program 1 times [2023-11-26 12:02:28,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:28,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441526328] [2023-11-26 12:02:28,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:28,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:28,132 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:02:28,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [56894697] [2023-11-26 12:02:28,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:28,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:28,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:28,134 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:02:28,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 12:02:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:28,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 12:02:28,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:28,951 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-26 12:02:28,952 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:02:28,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:28,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441526328] [2023-11-26 12:02:28,955 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:02:28,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56894697] [2023-11-26 12:02:28,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56894697] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:28,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:28,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:02:28,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123884216] [2023-11-26 12:02:28,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:28,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:02:28,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:28,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:02:28,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:02:28,962 INFO L87 Difference]: Start difference. First operand 106 states and 151 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-26 12:02:29,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:29,165 INFO L93 Difference]: Finished difference Result 259 states and 364 transitions. [2023-11-26 12:02:29,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:02:29,166 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2023-11-26 12:02:29,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:29,174 INFO L225 Difference]: With dead ends: 259 [2023-11-26 12:02:29,174 INFO L226 Difference]: Without dead ends: 162 [2023-11-26 12:02:29,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:02:29,181 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 46 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:29,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 195 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:02:29,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-11-26 12:02:29,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 93. [2023-11-26 12:02:29,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 54 states have (on average 1.1481481481481481) internal successors, (62), 54 states have internal predecessors, (62), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-26 12:02:29,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 130 transitions. [2023-11-26 12:02:29,244 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 130 transitions. Word has length 108 [2023-11-26 12:02:29,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:29,245 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 130 transitions. [2023-11-26 12:02:29,246 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-26 12:02:29,246 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 130 transitions. [2023-11-26 12:02:29,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-26 12:02:29,249 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:29,250 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:29,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 12:02:29,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:29,459 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:29,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:29,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1835067024, now seen corresponding path program 1 times [2023-11-26 12:02:29,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:29,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462544907] [2023-11-26 12:02:29,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:29,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:29,534 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:02:29,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [206470206] [2023-11-26 12:02:29,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:29,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:29,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:29,539 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:02:29,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 12:02:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:30,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 12:02:30,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:30,900 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-26 12:02:30,901 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:02:30,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:30,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462544907] [2023-11-26 12:02:30,901 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:02:30,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206470206] [2023-11-26 12:02:30,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206470206] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:30,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:30,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:02:30,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387924424] [2023-11-26 12:02:30,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:30,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:02:30,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:30,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:02:30,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:02:30,906 INFO L87 Difference]: Start difference. First operand 93 states and 130 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-26 12:02:31,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:31,084 INFO L93 Difference]: Finished difference Result 167 states and 232 transitions. [2023-11-26 12:02:31,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:02:31,085 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2023-11-26 12:02:31,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:31,087 INFO L225 Difference]: With dead ends: 167 [2023-11-26 12:02:31,087 INFO L226 Difference]: Without dead ends: 112 [2023-11-26 12:02:31,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:02:31,091 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 34 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:31,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 198 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:02:31,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-26 12:02:31,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 94. [2023-11-26 12:02:31,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 55 states have (on average 1.1454545454545455) internal successors, (63), 55 states have internal predecessors, (63), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-26 12:02:31,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 131 transitions. [2023-11-26 12:02:31,125 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 131 transitions. Word has length 108 [2023-11-26 12:02:31,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:31,126 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 131 transitions. [2023-11-26 12:02:31,126 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-26 12:02:31,127 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 131 transitions. [2023-11-26 12:02:31,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-26 12:02:31,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:31,129 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:31,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 12:02:31,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:31,337 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:31,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:31,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1468704586, now seen corresponding path program 1 times [2023-11-26 12:02:31,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:31,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119825050] [2023-11-26 12:02:31,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:31,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:31,444 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:02:31,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [450508050] [2023-11-26 12:02:31,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:31,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:31,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:31,446 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:02:31,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 12:02:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:31,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:02:31,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:31,768 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2023-11-26 12:02:31,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:02:31,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:31,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119825050] [2023-11-26 12:02:31,769 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:02:31,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450508050] [2023-11-26 12:02:31,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450508050] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:31,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:31,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:02:31,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761051410] [2023-11-26 12:02:31,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:31,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:02:31,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:31,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:02:31,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:02:31,775 INFO L87 Difference]: Start difference. First operand 94 states and 131 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-26 12:02:31,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:31,938 INFO L93 Difference]: Finished difference Result 201 states and 282 transitions. [2023-11-26 12:02:31,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:02:31,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 108 [2023-11-26 12:02:31,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:31,944 INFO L225 Difference]: With dead ends: 201 [2023-11-26 12:02:31,944 INFO L226 Difference]: Without dead ends: 146 [2023-11-26 12:02:31,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:02:31,947 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 81 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:31,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 121 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:02:31,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-26 12:02:31,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 94. [2023-11-26 12:02:31,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 55 states have (on average 1.1454545454545455) internal successors, (63), 55 states have internal predecessors, (63), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-26 12:02:31,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 131 transitions. [2023-11-26 12:02:31,993 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 131 transitions. Word has length 108 [2023-11-26 12:02:31,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:31,994 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 131 transitions. [2023-11-26 12:02:31,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-26 12:02:31,995 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 131 transitions. [2023-11-26 12:02:31,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-26 12:02:31,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:31,997 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:32,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 12:02:32,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:32,206 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:32,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:32,207 INFO L85 PathProgramCache]: Analyzing trace with hash -380310625, now seen corresponding path program 1 times [2023-11-26 12:02:32,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:32,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244792963] [2023-11-26 12:02:32,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:32,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:32,246 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:02:32,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [710950716] [2023-11-26 12:02:32,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:32,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:32,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:32,255 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:02:32,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 12:02:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:32,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 12:02:32,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:32,615 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-26 12:02:32,615 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:02:32,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:32,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244792963] [2023-11-26 12:02:32,616 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:02:32,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710950716] [2023-11-26 12:02:32,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710950716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:32,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:32,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:02:32,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43555854] [2023-11-26 12:02:32,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:32,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:02:32,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:32,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:02:32,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:02:32,625 INFO L87 Difference]: Start difference. First operand 94 states and 131 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-26 12:02:32,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:32,786 INFO L93 Difference]: Finished difference Result 167 states and 231 transitions. [2023-11-26 12:02:32,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:02:32,788 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2023-11-26 12:02:32,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:32,790 INFO L225 Difference]: With dead ends: 167 [2023-11-26 12:02:32,790 INFO L226 Difference]: Without dead ends: 112 [2023-11-26 12:02:32,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:02:32,793 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 37 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:32,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 201 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:02:32,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-26 12:02:32,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 95. [2023-11-26 12:02:32,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 56 states have internal predecessors, (64), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-26 12:02:32,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 132 transitions. [2023-11-26 12:02:32,827 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 132 transitions. Word has length 109 [2023-11-26 12:02:32,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:32,828 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 132 transitions. [2023-11-26 12:02:32,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-26 12:02:32,829 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 132 transitions. [2023-11-26 12:02:32,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-26 12:02:32,832 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:32,832 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:32,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 12:02:33,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:33,040 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:33,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:33,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1949109216, now seen corresponding path program 1 times [2023-11-26 12:02:33,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:33,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121915014] [2023-11-26 12:02:33,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:33,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:33,097 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:02:33,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [230561533] [2023-11-26 12:02:33,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:33,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:33,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:33,099 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:02:33,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 12:02:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:33,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:02:33,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:33,441 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-26 12:02:33,442 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:02:33,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:33,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121915014] [2023-11-26 12:02:33,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:02:33,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230561533] [2023-11-26 12:02:33,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230561533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:33,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:33,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:02:33,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481689132] [2023-11-26 12:02:33,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:33,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:02:33,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:33,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:02:33,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:02:33,446 INFO L87 Difference]: Start difference. First operand 95 states and 132 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-26 12:02:33,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:33,572 INFO L93 Difference]: Finished difference Result 202 states and 282 transitions. [2023-11-26 12:02:33,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:02:33,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2023-11-26 12:02:33,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:33,575 INFO L225 Difference]: With dead ends: 202 [2023-11-26 12:02:33,575 INFO L226 Difference]: Without dead ends: 147 [2023-11-26 12:02:33,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:02:33,577 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 68 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:33,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 119 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:02:33,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-11-26 12:02:33,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 92. [2023-11-26 12:02:33,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 53 states have (on average 1.1320754716981132) internal successors, (60), 53 states have internal predecessors, (60), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-26 12:02:33,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 128 transitions. [2023-11-26 12:02:33,607 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 128 transitions. Word has length 109 [2023-11-26 12:02:33,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:33,608 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 128 transitions. [2023-11-26 12:02:33,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-26 12:02:33,608 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 128 transitions. [2023-11-26 12:02:33,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-26 12:02:33,610 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:33,610 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:33,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 12:02:33,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:33,817 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:33,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:33,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1434670923, now seen corresponding path program 1 times [2023-11-26 12:02:33,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:33,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626423511] [2023-11-26 12:02:33,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:33,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:33,865 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:02:33,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1121789471] [2023-11-26 12:02:33,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:33,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:33,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:33,867 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:02:33,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 12:02:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:34,110 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:02:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:34,339 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:02:34,339 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 12:02:34,340 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 12:02:34,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 12:02:34,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:34,553 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:34,558 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:02:34,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:02:34 BoogieIcfgContainer [2023-11-26 12:02:34,749 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:02:34,749 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:02:34,750 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:02:34,750 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:02:34,751 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:24" (3/4) ... [2023-11-26 12:02:34,753 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 12:02:34,755 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:02:34,756 INFO L158 Benchmark]: Toolchain (without parser) took 11550.87ms. Allocated memory was 159.4MB in the beginning and 205.5MB in the end (delta: 46.1MB). Free memory was 126.8MB in the beginning and 71.8MB in the end (delta: 55.0MB). Peak memory consumption was 102.7MB. Max. memory is 16.1GB. [2023-11-26 12:02:34,756 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 109.1MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:02:34,757 INFO L158 Benchmark]: CACSL2BoogieTranslator took 557.05ms. Allocated memory is still 159.4MB. Free memory was 126.8MB in the beginning and 113.2MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 12:02:34,757 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.87ms. Allocated memory is still 159.4MB. Free memory was 113.2MB in the beginning and 110.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:02:34,758 INFO L158 Benchmark]: Boogie Preprocessor took 98.42ms. Allocated memory is still 159.4MB. Free memory was 110.6MB in the beginning and 106.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:02:34,759 INFO L158 Benchmark]: RCFGBuilder took 786.29ms. Allocated memory is still 159.4MB. Free memory was 106.9MB in the beginning and 85.0MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-26 12:02:34,759 INFO L158 Benchmark]: TraceAbstraction took 9979.73ms. Allocated memory was 159.4MB in the beginning and 205.5MB in the end (delta: 46.1MB). Free memory was 84.5MB in the beginning and 72.9MB in the end (delta: 11.6MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2023-11-26 12:02:34,760 INFO L158 Benchmark]: Witness Printer took 5.51ms. Allocated memory is still 205.5MB. Free memory was 72.9MB in the beginning and 71.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:02:34,763 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 109.1MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 557.05ms. Allocated memory is still 159.4MB. Free memory was 126.8MB in the beginning and 113.2MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.87ms. Allocated memory is still 159.4MB. Free memory was 113.2MB in the beginning and 110.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.42ms. Allocated memory is still 159.4MB. Free memory was 110.6MB in the beginning and 106.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 786.29ms. Allocated memory is still 159.4MB. Free memory was 106.9MB in the beginning and 85.0MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 9979.73ms. Allocated memory was 159.4MB in the beginning and 205.5MB in the end (delta: 46.1MB). Free memory was 84.5MB in the beginning and 72.9MB in the end (delta: 11.6MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Witness Printer took 5.51ms. Allocated memory is still 205.5MB. Free memory was 72.9MB in the beginning and 71.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 94, overapproximation of someBinaryDOUBLEComparisonOperation at line 126. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 16; [L23] signed char var_1_10 = 2; [L24] signed char var_1_11 = 1; [L25] float var_1_14 = 64.3; [L26] signed char var_1_16 = 32; [L27] unsigned char var_1_17 = 1; [L28] unsigned char var_1_18 = 0; [L29] unsigned char var_1_19 = 0; [L30] double var_1_20 = 9.25; [L31] double var_1_21 = 255.05; [L32] double var_1_22 = 25.5; [L33] unsigned char var_1_23 = 2; [L34] unsigned char var_1_25 = 1; [L35] unsigned short int var_1_26 = 5; [L36] unsigned char var_1_27 = 128; [L37] unsigned char var_1_28 = 1; [L38] signed long int var_1_29 = 128; [L39] unsigned long int var_1_31 = 1; [L40] unsigned char last_1_var_1_17 = 1; [L41] double last_1_var_1_20 = 9.25; [L42] unsigned char last_1_var_1_23 = 2; [L43] unsigned short int last_1_var_1_26 = 5; [L44] signed long int last_1_var_1_29 = 128; [L130] isInitial = 1 [L131] FCALL initially() [L132] COND TRUE 1 [L133] CALL updateLastVariables() [L119] last_1_var_1_17 = var_1_17 [L120] last_1_var_1_20 = var_1_20 [L121] last_1_var_1_23 = var_1_23 [L122] last_1_var_1_26 = var_1_26 [L123] last_1_var_1_29 = var_1_29 [L133] RET updateLastVariables() [L134] CALL updateVariables() [L90] var_1_11 = __VERIFIER_nondet_char() [L91] CALL assume_abort_if_not(var_1_11 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_14=643/10, var_1_16=32, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_14=643/10, var_1_16=32, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L91] RET assume_abort_if_not(var_1_11 >= -63) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_14=643/10, var_1_16=32, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L92] CALL assume_abort_if_not(var_1_11 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_14=643/10, var_1_16=32, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_14=643/10, var_1_16=32, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L92] RET assume_abort_if_not(var_1_11 <= 63) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_14=643/10, var_1_16=32, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L93] var_1_14 = __VERIFIER_nondet_float() [L94] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=32, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=32, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L94] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=32, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L95] var_1_16 = __VERIFIER_nondet_char() [L96] CALL assume_abort_if_not(var_1_16 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L96] RET assume_abort_if_not(var_1_16 >= -63) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L97] CALL assume_abort_if_not(var_1_16 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L97] RET assume_abort_if_not(var_1_16 <= 63) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L98] var_1_18 = __VERIFIER_nondet_uchar() [L99] CALL assume_abort_if_not(var_1_18 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L99] RET assume_abort_if_not(var_1_18 >= 1) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L100] CALL assume_abort_if_not(var_1_18 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L100] RET assume_abort_if_not(var_1_18 <= 1) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L101] var_1_19 = __VERIFIER_nondet_uchar() [L102] CALL assume_abort_if_not(var_1_19 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L102] RET assume_abort_if_not(var_1_19 >= 1) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L103] CALL assume_abort_if_not(var_1_19 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L103] RET assume_abort_if_not(var_1_19 <= 1) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_21=5101/20, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L104] var_1_21 = __VERIFIER_nondet_double() [L105] CALL assume_abort_if_not((var_1_21 >= -922337.2036854765600e+13F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854765600e+12F && var_1_21 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L105] RET assume_abort_if_not((var_1_21 >= -922337.2036854765600e+13F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854765600e+12F && var_1_21 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_22=51/2, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L106] var_1_22 = __VERIFIER_nondet_double() [L107] CALL assume_abort_if_not((var_1_22 >= -922337.2036854765600e+13F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 9223372.036854765600e+12F && var_1_22 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L107] RET assume_abort_if_not((var_1_22 >= -922337.2036854765600e+13F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 9223372.036854765600e+12F && var_1_22 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=1, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L108] var_1_25 = __VERIFIER_nondet_uchar() [L109] CALL assume_abort_if_not(var_1_25 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L109] RET assume_abort_if_not(var_1_25 >= 0) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L110] CALL assume_abort_if_not(var_1_25 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L110] RET assume_abort_if_not(var_1_25 <= 254) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=128, var_1_28=1, var_1_29=128, var_1_31=1] [L111] var_1_27 = __VERIFIER_nondet_uchar() [L112] CALL assume_abort_if_not(var_1_27 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=127, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=127, var_1_28=1, var_1_29=128, var_1_31=1] [L112] RET assume_abort_if_not(var_1_27 >= 127) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=127, var_1_28=1, var_1_29=128, var_1_31=1] [L113] CALL assume_abort_if_not(var_1_27 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=127, var_1_28=1, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=127, var_1_28=1, var_1_29=128, var_1_31=1] [L113] RET assume_abort_if_not(var_1_27 <= 255) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=127, var_1_28=1, var_1_29=128, var_1_31=1] [L114] var_1_28 = __VERIFIER_nondet_uchar() [L115] CALL assume_abort_if_not(var_1_28 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=127, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=127, var_1_29=128, var_1_31=1] [L115] RET assume_abort_if_not(var_1_28 >= 0) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=127, var_1_29=128, var_1_31=1] [L116] CALL assume_abort_if_not(var_1_28 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=127, var_1_28=0, var_1_29=128, var_1_31=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=127, var_1_28=0, var_1_29=128, var_1_31=1] [L116] RET assume_abort_if_not(var_1_28 <= 127) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=2, var_1_25=0, var_1_26=5, var_1_27=127, var_1_28=0, var_1_29=128, var_1_31=1] [L134] RET updateVariables() [L135] CALL step() [L48] COND TRUE (last_1_var_1_29 + last_1_var_1_29) > last_1_var_1_26 [L49] var_1_23 = var_1_25 VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=0, var_1_25=0, var_1_26=5, var_1_27=127, var_1_28=0, var_1_29=128, var_1_31=1] [L51] COND FALSE !((last_1_var_1_29 * last_1_var_1_23) <= last_1_var_1_29) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=0, var_1_25=0, var_1_26=5, var_1_27=127, var_1_28=0, var_1_29=128, var_1_31=1] [L54] COND TRUE last_1_var_1_17 || last_1_var_1_17 VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=2, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=0, var_1_25=0, var_1_26=5, var_1_27=127, var_1_28=0, var_1_29=128, var_1_31=1] [L55] COND TRUE (((((last_1_var_1_20) < 0 ) ? -(last_1_var_1_20) : (last_1_var_1_20))) - var_1_14) == (last_1_var_1_20 + last_1_var_1_20) [L56] var_1_10 = (var_1_11 + var_1_16) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=64, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=0, var_1_25=0, var_1_26=5, var_1_27=127, var_1_28=0, var_1_29=128, var_1_31=1] [L64] var_1_17 = (var_1_18 && var_1_19) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=64, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=0, var_1_25=0, var_1_26=5, var_1_27=127, var_1_28=0, var_1_29=128, var_1_31=1] [L65] COND FALSE !(! var_1_18) VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=64, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=0, var_1_25=0, var_1_26=5, var_1_27=127, var_1_28=0, var_1_29=128, var_1_31=1] [L68] COND TRUE 256 >= var_1_10 VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=64, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=0, var_1_25=0, var_1_26=5, var_1_27=127, var_1_28=0, var_1_29=128, var_1_31=1] [L69] COND FALSE !(var_1_17 && (var_1_25 >= (var_1_27 - var_1_28))) [L72] var_1_26 = var_1_28 VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=64, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=0, var_1_25=0, var_1_26=0, var_1_27=127, var_1_28=0, var_1_29=128, var_1_31=1] [L77] var_1_31 = var_1_26 VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=64, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=16, var_1_20=37/4, var_1_23=0, var_1_25=0, var_1_26=0, var_1_27=127, var_1_28=0, var_1_29=128, var_1_31=0] [L78] COND FALSE !(((((var_1_20) < (63.5)) ? (var_1_20) : (63.5))) > (2.4 * var_1_20)) [L85] var_1_1 = -50 VAL [isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=64, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=-50, var_1_20=37/4, var_1_23=0, var_1_25=0, var_1_26=0, var_1_27=127, var_1_28=0, var_1_29=128, var_1_31=0] [L87] var_1_29 = var_1_1 [L135] RET step() [L136] CALL, EXPR property() [L126-L127] return ((((((((((((var_1_20) < (63.5)) ? (var_1_20) : (63.5))) > (2.4 * var_1_20)) ? (((var_1_23 * var_1_26) <= (~ var_1_26)) ? (var_1_1 == ((signed short int) (((((var_1_10) < (var_1_10)) ? (var_1_10) : (var_1_10))) + var_1_23))) : (var_1_1 == ((signed short int) var_1_10))) : (var_1_1 == ((signed short int) -50))) && (((last_1_var_1_29 * last_1_var_1_23) <= last_1_var_1_29) ? (var_1_10 == ((signed char) (var_1_11 + 10))) : ((last_1_var_1_17 || last_1_var_1_17) ? (((((((last_1_var_1_20) < 0 ) ? -(last_1_var_1_20) : (last_1_var_1_20))) - var_1_14) == (last_1_var_1_20 + last_1_var_1_20)) ? (var_1_10 == ((signed char) (var_1_11 + var_1_16))) : (var_1_10 == ((signed char) var_1_11))) : (var_1_10 == ((signed char) var_1_16))))) && (var_1_17 == ((unsigned char) (var_1_18 && var_1_19)))) && ((! var_1_18) ? (var_1_20 == ((double) ((((var_1_21) > (var_1_22)) ? (var_1_21) : (var_1_22))))) : 1)) && (((last_1_var_1_29 + last_1_var_1_29) > last_1_var_1_26) ? (var_1_23 == ((unsigned char) var_1_25)) : 1)) && ((256 >= var_1_10) ? ((var_1_17 && (var_1_25 >= (var_1_27 - var_1_28))) ? (var_1_26 == ((unsigned short int) 16)) : (var_1_26 == ((unsigned short int) var_1_28))) : (var_1_26 == ((unsigned short int) var_1_25)))) && (var_1_29 == ((signed long int) var_1_1))) && (var_1_31 == ((unsigned long int) var_1_26)) ; [L136] RET, EXPR property() [L136] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=64, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=-50, var_1_20=37/4, var_1_23=0, var_1_25=0, var_1_26=0, var_1_27=127, var_1_28=0, var_1_29=-50, var_1_31=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_17=1, last_1_var_1_20=37/4, last_1_var_1_23=2, last_1_var_1_26=5, last_1_var_1_29=128, var_1_10=64, var_1_11=63, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=1, var_1_1=-50, var_1_20=37/4, var_1_23=0, var_1_25=0, var_1_26=0, var_1_27=127, var_1_28=0, var_1_29=-50, var_1_31=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.7s, OverallIterations: 9, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 366 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 361 mSDsluCounter, 1171 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 650 mSDsCounter, 197 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 274 IncrementalHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 197 mSolverCounterUnsat, 521 mSDtfsCounter, 274 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 972 GetRequests, 946 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=3, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 221 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1080 NumberOfCodeBlocks, 1080 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 961 ConstructedInterpolants, 0 QuantifiedInterpolants, 3097 SizeOfPredicates, 9 NumberOfNonLiveVariables, 2223 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 4830/4896 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 12:02:34,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/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_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-72.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/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_53f53093-964b-4678-ad60-fd5d3f880289/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 b545584bd88f47093962ebc7c26b6e47720a32713ab794e33d897c38ad3103bb --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:02:37,998 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:02:38,147 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 12:02:38,156 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:02:38,157 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:02:38,209 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:02:38,210 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:02:38,211 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:02:38,212 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:02:38,217 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:02:38,218 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:02:38,218 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:02:38,219 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:02:38,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:02:38,222 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:02:38,223 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:02:38,223 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:02:38,223 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:02:38,224 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:02:38,224 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:02:38,225 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:02:38,225 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:02:38,226 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:02:38,226 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:02:38,227 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 12:02:38,227 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 12:02:38,228 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:02:38,228 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:02:38,228 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:02:38,229 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:02:38,231 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:02:38,231 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:02:38,231 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:02:38,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:38,232 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:02:38,232 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:02:38,233 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:02:38,233 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 12:02:38,234 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 12:02:38,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:02:38,234 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:02:38,234 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:02:38,235 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:02:38,235 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:02:38,235 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 12:02:38,236 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_53f53093-964b-4678-ad60-fd5d3f880289/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b545584bd88f47093962ebc7c26b6e47720a32713ab794e33d897c38ad3103bb [2023-11-26 12:02:38,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:02:38,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:02:38,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:02:38,745 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:02:38,746 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:02:38,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-72.i [2023-11-26 12:02:42,229 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:02:42,597 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:02:42,598 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-72.i [2023-11-26 12:02:42,614 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/data/4cbfa3501/bf8d56d4b97441baac97ed1fe66febd7/FLAGb5a01f9da [2023-11-26 12:02:42,634 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/data/4cbfa3501/bf8d56d4b97441baac97ed1fe66febd7 [2023-11-26 12:02:42,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:02:42,639 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:02:42,644 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:42,644 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:02:42,651 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:02:42,652 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:42" (1/1) ... [2023-11-26 12:02:42,653 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da4b7ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:42, skipping insertion in model container [2023-11-26 12:02:42,654 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:42" (1/1) ... [2023-11-26 12:02:42,692 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:02:42,880 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_53f53093-964b-4678-ad60-fd5d3f880289/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-72.i[919,932] [2023-11-26 12:02:42,948 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:42,982 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:02:43,008 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_53f53093-964b-4678-ad60-fd5d3f880289/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-72.i[919,932] [2023-11-26 12:02:43,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:43,123 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:02:43,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:43 WrapperNode [2023-11-26 12:02:43,124 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:43,126 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:43,126 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:02:43,127 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:02:43,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:43" (1/1) ... [2023-11-26 12:02:43,170 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:43" (1/1) ... [2023-11-26 12:02:43,215 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 133 [2023-11-26 12:02:43,216 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:43,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:02:43,217 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:02:43,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:02:43,233 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:43" (1/1) ... [2023-11-26 12:02:43,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:43" (1/1) ... [2023-11-26 12:02:43,247 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:43" (1/1) ... [2023-11-26 12:02:43,270 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 12:02:43,270 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:43" (1/1) ... [2023-11-26 12:02:43,270 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:43" (1/1) ... [2023-11-26 12:02:43,296 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:43" (1/1) ... [2023-11-26 12:02:43,301 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:43" (1/1) ... [2023-11-26 12:02:43,304 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:43" (1/1) ... [2023-11-26 12:02:43,309 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:43" (1/1) ... [2023-11-26 12:02:43,315 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:02:43,321 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:02:43,321 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:02:43,321 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:02:43,322 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:43" (1/1) ... [2023-11-26 12:02:43,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:43,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:43,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:43,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:02:43,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:02:43,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 12:02:43,440 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 12:02:43,440 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 12:02:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:02:43,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:02:43,620 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:02:43,625 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:02:52,890 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:02:52,957 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:02:52,957 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:02:52,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:52 BoogieIcfgContainer [2023-11-26 12:02:52,958 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:02:52,961 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:02:52,961 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:02:52,964 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:02:52,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:02:42" (1/3) ... [2023-11-26 12:02:52,965 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714f2d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:52, skipping insertion in model container [2023-11-26 12:02:52,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:43" (2/3) ... [2023-11-26 12:02:52,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714f2d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:52, skipping insertion in model container [2023-11-26 12:02:52,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:52" (3/3) ... [2023-11-26 12:02:52,967 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-72.i [2023-11-26 12:02:52,984 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:02:52,984 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:02:53,045 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:02:53,055 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;@7ab890c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:02:53,056 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:02:53,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 32 states have internal predecessors, (45), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-26 12:02:53,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-26 12:02:53,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:53,080 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:53,080 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:53,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:53,085 INFO L85 PathProgramCache]: Analyzing trace with hash 191248627, now seen corresponding path program 1 times [2023-11-26 12:02:53,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:02:53,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920531163] [2023-11-26 12:02:53,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:53,099 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 12:02:53,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:02:53,137 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/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 12:02:53,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/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 12:02:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:53,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 12:02:53,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:53,784 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2023-11-26 12:02:53,784 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:02:53,785 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:02:53,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920531163] [2023-11-26 12:02:53,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920531163] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:53,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:53,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:53,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615785746] [2023-11-26 12:02:53,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:53,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:02:53,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:02:53,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:02:53,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:02:53,828 INFO L87 Difference]: Start difference. First operand has 51 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 32 states have internal predecessors, (45), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-26 12:02:58,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 12:02:58,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:58,108 INFO L93 Difference]: Finished difference Result 99 states and 173 transitions. [2023-11-26 12:02:58,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:02:58,160 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 107 [2023-11-26 12:02:58,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:58,170 INFO L225 Difference]: With dead ends: 99 [2023-11-26 12:02:58,170 INFO L226 Difference]: Without dead ends: 49 [2023-11-26 12:02:58,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 106 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 12:02:58,178 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:58,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-11-26 12:02:58,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-26 12:02:58,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-26 12:02:58,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-26 12:02:58,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 72 transitions. [2023-11-26 12:02:58,228 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 72 transitions. Word has length 107 [2023-11-26 12:02:58,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:58,228 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 72 transitions. [2023-11-26 12:02:58,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-26 12:02:58,229 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 72 transitions. [2023-11-26 12:02:58,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-26 12:02:58,232 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:58,233 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:58,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/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 12:02:58,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/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 12:02:58,451 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:58,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:58,453 INFO L85 PathProgramCache]: Analyzing trace with hash -949489068, now seen corresponding path program 1 times [2023-11-26 12:02:58,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:02:58,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598551689] [2023-11-26 12:02:58,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:58,455 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 12:02:58,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:02:58,457 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/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 12:02:58,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/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 12:02:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:59,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 12:02:59,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:00,885 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-26 12:03:00,886 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:03:00,886 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:03:00,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598551689] [2023-11-26 12:03:00,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [598551689] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:00,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:00,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:03:00,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252107892] [2023-11-26 12:03:00,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:00,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:03:00,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:03:00,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:03:00,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:03:00,892 INFO L87 Difference]: Start difference. First operand 49 states and 72 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-26 12:03:04,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.68s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 12:03:09,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 12:03:09,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:09,309 INFO L93 Difference]: Finished difference Result 146 states and 215 transitions. [2023-11-26 12:03:09,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:03:09,361 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2023-11-26 12:03:09,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:03:09,365 INFO L225 Difference]: With dead ends: 146 [2023-11-26 12:03:09,365 INFO L226 Difference]: Without dead ends: 98 [2023-11-26 12:03:09,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:03:09,368 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 47 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 35 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-11-26 12:03:09,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 196 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2023-11-26 12:03:09,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-26 12:03:09,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 82. [2023-11-26 12:03:09,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 45 states have internal predecessors, (53), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-26 12:03:09,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 121 transitions. [2023-11-26 12:03:09,406 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 121 transitions. Word has length 108 [2023-11-26 12:03:09,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:03:09,408 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 121 transitions. [2023-11-26 12:03:09,408 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-26 12:03:09,408 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 121 transitions. [2023-11-26 12:03:09,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-26 12:03:09,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:09,412 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:09,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/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 12:03:09,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/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 12:03:09,625 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:09,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:09,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1650553646, now seen corresponding path program 1 times [2023-11-26 12:03:09,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:03:09,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120924517] [2023-11-26 12:03:09,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:09,628 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 12:03:09,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:03:09,629 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/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 12:03:09,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53f53093-964b-4678-ad60-fd5d3f880289/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 12:03:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:10,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 12:03:10,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:11,848 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-26 12:03:11,848 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:03:11,849 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:03:11,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120924517] [2023-11-26 12:03:11,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [120924517] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:11,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:11,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:03:11,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71951260] [2023-11-26 12:03:11,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:11,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:03:11,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:03:11,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:03:11,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:03:11,854 INFO L87 Difference]: Start difference. First operand 82 states and 121 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-26 12:03:16,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []