./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-11.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-11.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b73443b934cb8f13c6c3c0966f6912c28ac30fc0ad18f5f644522c4d2e3ecf6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:07:40,608 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:07:40,713 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 19:07:40,719 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:07:40,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:07:40,762 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:07:40,765 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:07:40,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:07:40,766 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:07:40,767 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:07:40,767 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:07:40,767 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:07:40,768 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:07:40,768 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:07:40,769 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:07:40,771 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:07:40,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:07:40,774 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:07:40,774 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:07:40,777 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:07:40,778 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:07:40,778 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:07:40,779 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:07:40,779 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:07:40,779 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:07:40,779 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:07:40,780 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:07:40,780 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:07:40,780 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:07:40,780 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:07:40,781 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:07:40,781 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:07:40,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:07:40,781 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:07:40,782 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:07:40,785 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:07:40,786 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:07:40,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:07:40,787 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:07:40,787 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:07:40,787 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:07:40,788 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:07:40,788 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_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b73443b934cb8f13c6c3c0966f6912c28ac30fc0ad18f5f644522c4d2e3ecf6 [2024-11-08 19:07:41,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:07:41,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:07:41,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:07:41,123 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:07:41,123 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:07:41,125 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-11.i Unable to find full path for "g++" [2024-11-08 19:07:43,299 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:07:43,498 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:07:43,500 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-11.i [2024-11-08 19:07:43,510 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/data/056c91d4a/b519a8182b1f47f69f8531578578a18b/FLAG7812df5b1 [2024-11-08 19:07:43,526 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/data/056c91d4a/b519a8182b1f47f69f8531578578a18b [2024-11-08 19:07:43,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:07:43,530 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:07:43,532 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:07:43,532 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:07:43,541 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:07:43,542 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:07:43" (1/1) ... [2024-11-08 19:07:43,543 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ef942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:43, skipping insertion in model container [2024-11-08 19:07:43,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:07:43" (1/1) ... [2024-11-08 19:07:43,577 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:07:43,775 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-11.i[915,928] [2024-11-08 19:07:43,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:07:43,854 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:07:43,869 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-11.i[915,928] [2024-11-08 19:07:43,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:07:43,925 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:07:43,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:43 WrapperNode [2024-11-08 19:07:43,926 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:07:43,927 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:07:43,927 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:07:43,927 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:07:43,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:43" (1/1) ... [2024-11-08 19:07:43,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:43" (1/1) ... [2024-11-08 19:07:43,980 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 134 [2024-11-08 19:07:43,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:07:43,985 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:07:43,985 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:07:43,985 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:07:43,996 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:43" (1/1) ... [2024-11-08 19:07:43,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:43" (1/1) ... [2024-11-08 19:07:43,999 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:43" (1/1) ... [2024-11-08 19:07:44,015 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 19:07:44,016 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:43" (1/1) ... [2024-11-08 19:07:44,016 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:43" (1/1) ... [2024-11-08 19:07:44,024 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:43" (1/1) ... [2024-11-08 19:07:44,029 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:43" (1/1) ... [2024-11-08 19:07:44,031 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:43" (1/1) ... [2024-11-08 19:07:44,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:43" (1/1) ... [2024-11-08 19:07:44,035 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:07:44,037 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:07:44,037 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:07:44,037 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:07:44,038 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:43" (1/1) ... [2024-11-08 19:07:44,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:07:44,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:07:44,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:07:44,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:07:44,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:07:44,112 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 19:07:44,112 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 19:07:44,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:07:44,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:07:44,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:07:44,197 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:07:44,200 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:07:44,546 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-08 19:07:44,546 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:07:44,562 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:07:44,562 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:07:44,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:07:44 BoogieIcfgContainer [2024-11-08 19:07:44,565 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:07:44,569 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:07:44,569 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:07:44,573 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:07:44,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:07:43" (1/3) ... [2024-11-08 19:07:44,575 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2701cd14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:07:44, skipping insertion in model container [2024-11-08 19:07:44,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:43" (2/3) ... [2024-11-08 19:07:44,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2701cd14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:07:44, skipping insertion in model container [2024-11-08 19:07:44,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:07:44" (3/3) ... [2024-11-08 19:07:44,579 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-11.i [2024-11-08 19:07:44,604 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:07:44,604 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 19:07:44,746 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:07:44,753 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@18aa02d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:07:44,753 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 19:07:44,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 38 states have (on average 1.394736842105263) internal successors, (53), 39 states have internal predecessors, (53), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:07:44,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 19:07:44,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:44,773 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:44,773 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:44,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:44,780 INFO L85 PathProgramCache]: Analyzing trace with hash -2115207085, now seen corresponding path program 1 times [2024-11-08 19:07:44,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:44,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704620636] [2024-11-08 19:07:44,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:44,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:45,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 19:07:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:45,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:07:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:45,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:07:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:45,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 19:07:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:45,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 19:07:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:45,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 19:07:45,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:45,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 19:07:45,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:45,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:07:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:45,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:07:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:45,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 19:07:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:45,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 19:07:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:45,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 19:07:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:45,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 19:07:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:45,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 19:07:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:45,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 19:07:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:45,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 19:07:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:45,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 19:07:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:45,290 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:07:45,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:45,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704620636] [2024-11-08 19:07:45,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704620636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:45,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:45,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:07:45,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478774640] [2024-11-08 19:07:45,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:45,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 19:07:45,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:45,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 19:07:45,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:07:45,334 INFO L87 Difference]: Start difference. First operand has 58 states, 38 states have (on average 1.394736842105263) internal successors, (53), 39 states have internal predecessors, (53), 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 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:07:45,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:45,368 INFO L93 Difference]: Finished difference Result 113 states and 188 transitions. [2024-11-08 19:07:45,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 19:07:45,371 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 111 [2024-11-08 19:07:45,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:45,381 INFO L225 Difference]: With dead ends: 113 [2024-11-08 19:07:45,381 INFO L226 Difference]: Without dead ends: 54 [2024-11-08 19:07:45,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:07:45,389 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:45,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:07:45,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-08 19:07:45,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-08 19:07:45,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 35 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) [2024-11-08 19:07:45,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 79 transitions. [2024-11-08 19:07:45,443 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 79 transitions. Word has length 111 [2024-11-08 19:07:45,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:45,444 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 79 transitions. [2024-11-08 19:07:45,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 19:07:45,445 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 79 transitions. [2024-11-08 19:07:45,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 19:07:45,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:45,449 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:45,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:07:45,449 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:45,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:45,451 INFO L85 PathProgramCache]: Analyzing trace with hash 2017940119, now seen corresponding path program 1 times [2024-11-08 19:07:45,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:45,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469474418] [2024-11-08 19:07:45,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:45,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:46,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 19:07:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:46,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:07:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:46,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:07:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:46,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 19:07:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:46,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 19:07:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:46,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 19:07:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:46,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 19:07:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:46,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:07:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:46,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:07:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:46,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 19:07:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:46,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 19:07:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:46,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 19:07:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:46,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 19:07:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:46,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 19:07:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:46,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 19:07:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:46,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 19:07:46,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:46,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 19:07:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:46,902 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:07:46,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:46,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469474418] [2024-11-08 19:07:46,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469474418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:46,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:46,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:07:46,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578775995] [2024-11-08 19:07:46,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:46,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:07:46,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:46,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:07:46,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:07:46,915 INFO L87 Difference]: Start difference. First operand 54 states and 79 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:07:47,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:47,058 INFO L93 Difference]: Finished difference Result 118 states and 171 transitions. [2024-11-08 19:07:47,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:07:47,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 111 [2024-11-08 19:07:47,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:47,064 INFO L225 Difference]: With dead ends: 118 [2024-11-08 19:07:47,064 INFO L226 Difference]: Without dead ends: 67 [2024-11-08 19:07:47,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:07:47,066 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 34 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:47,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 258 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:07:47,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-08 19:07:47,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 58. [2024-11-08 19:07:47,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 39 states have internal predecessors, (51), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:07:47,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 85 transitions. [2024-11-08 19:07:47,094 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 85 transitions. Word has length 111 [2024-11-08 19:07:47,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:47,096 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 85 transitions. [2024-11-08 19:07:47,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:07:47,097 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 85 transitions. [2024-11-08 19:07:47,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 19:07:47,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:47,102 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:47,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:07:47,103 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:47,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:47,103 INFO L85 PathProgramCache]: Analyzing trace with hash 2019787161, now seen corresponding path program 1 times [2024-11-08 19:07:47,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:47,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861302720] [2024-11-08 19:07:47,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:47,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:47,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 19:07:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:47,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:07:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:47,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:07:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:47,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 19:07:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:47,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 19:07:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:47,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 19:07:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:47,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 19:07:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:47,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:07:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:47,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:07:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:47,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 19:07:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:47,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 19:07:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:47,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 19:07:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:47,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 19:07:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:47,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 19:07:47,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:47,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 19:07:47,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:47,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 19:07:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:47,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 19:07:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:47,820 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:07:47,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:47,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861302720] [2024-11-08 19:07:47,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861302720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:47,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:47,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:07:47,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217797451] [2024-11-08 19:07:47,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:47,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:07:47,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:47,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:07:47,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:07:47,832 INFO L87 Difference]: Start difference. First operand 58 states and 85 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:07:48,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:48,151 INFO L93 Difference]: Finished difference Result 170 states and 251 transitions. [2024-11-08 19:07:48,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:07:48,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 111 [2024-11-08 19:07:48,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:48,156 INFO L225 Difference]: With dead ends: 170 [2024-11-08 19:07:48,156 INFO L226 Difference]: Without dead ends: 115 [2024-11-08 19:07:48,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:07:48,159 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 54 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:48,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 253 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:07:48,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-08 19:07:48,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 92. [2024-11-08 19:07:48,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 55 states have (on average 1.2181818181818183) internal successors, (67), 55 states have internal predecessors, (67), 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) [2024-11-08 19:07:48,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 135 transitions. [2024-11-08 19:07:48,199 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 135 transitions. Word has length 111 [2024-11-08 19:07:48,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:48,200 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 135 transitions. [2024-11-08 19:07:48,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:07:48,200 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 135 transitions. [2024-11-08 19:07:48,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 19:07:48,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:48,202 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:48,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:07:48,203 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:48,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:48,203 INFO L85 PathProgramCache]: Analyzing trace with hash -400459569, now seen corresponding path program 1 times [2024-11-08 19:07:48,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:48,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432253996] [2024-11-08 19:07:48,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:48,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:48,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 19:07:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:48,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:07:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:48,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:07:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:48,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 19:07:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:48,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 19:07:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:48,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 19:07:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:48,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 19:07:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:48,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:07:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:48,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:07:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:48,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 19:07:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:49,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 19:07:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:49,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 19:07:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:49,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 19:07:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:49,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 19:07:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:49,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 19:07:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:49,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 19:07:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:49,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 19:07:49,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:49,055 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 9 proven. 39 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 19:07:49,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:49,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432253996] [2024-11-08 19:07:49,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432253996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:07:49,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45955702] [2024-11-08 19:07:49,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:49,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:07:49,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:07:49,059 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:07:49,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 19:07:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:49,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 19:07:49,244 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:49,640 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 178 proven. 39 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-11-08 19:07:49,640 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:07:50,045 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 9 proven. 39 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 19:07:50,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45955702] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:07:50,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:07:50,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-08 19:07:50,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125726174] [2024-11-08 19:07:50,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:07:50,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:07:50,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:50,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:07:50,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:07:50,049 INFO L87 Difference]: Start difference. First operand 92 states and 135 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-08 19:07:50,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:50,328 INFO L93 Difference]: Finished difference Result 159 states and 225 transitions. [2024-11-08 19:07:50,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:07:50,329 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 112 [2024-11-08 19:07:50,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:50,331 INFO L225 Difference]: With dead ends: 159 [2024-11-08 19:07:50,331 INFO L226 Difference]: Without dead ends: 104 [2024-11-08 19:07:50,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 253 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:07:50,334 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 73 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:50,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 127 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:07:50,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-08 19:07:50,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 96. [2024-11-08 19:07:50,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 57 states have (on average 1.1403508771929824) internal successors, (65), 57 states have internal predecessors, (65), 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) [2024-11-08 19:07:50,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 133 transitions. [2024-11-08 19:07:50,374 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 133 transitions. Word has length 112 [2024-11-08 19:07:50,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:50,375 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 133 transitions. [2024-11-08 19:07:50,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-08 19:07:50,375 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 133 transitions. [2024-11-08 19:07:50,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 19:07:50,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:50,380 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:50,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 19:07:50,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:07:50,585 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:50,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:50,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1145942706, now seen corresponding path program 1 times [2024-11-08 19:07:50,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:50,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355035586] [2024-11-08 19:07:50,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:50,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:07:50,880 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:07:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:07:51,242 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:07:51,242 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 19:07:51,244 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 19:07:51,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 19:07:51,251 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-08 19:07:51,399 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 19:07:51,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 07:07:51 BoogieIcfgContainer [2024-11-08 19:07:51,404 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 19:07:51,405 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:07:51,405 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:07:51,405 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:07:51,406 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:07:44" (3/4) ... [2024-11-08 19:07:51,410 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 19:07:51,411 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:07:51,414 INFO L158 Benchmark]: Toolchain (without parser) took 7881.60ms. Allocated memory was 176.2MB in the beginning and 216.0MB in the end (delta: 39.8MB). Free memory was 137.5MB in the beginning and 168.9MB in the end (delta: -31.4MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2024-11-08 19:07:51,415 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 107.0MB. Free memory is still 54.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:07:51,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.11ms. Allocated memory is still 176.2MB. Free memory was 137.5MB in the beginning and 122.4MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 19:07:51,416 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.49ms. Allocated memory is still 176.2MB. Free memory was 122.1MB in the beginning and 120.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:07:51,419 INFO L158 Benchmark]: Boogie Preprocessor took 50.89ms. Allocated memory is still 176.2MB. Free memory was 120.1MB in the beginning and 116.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:07:51,420 INFO L158 Benchmark]: RCFGBuilder took 529.02ms. Allocated memory is still 176.2MB. Free memory was 116.9MB in the beginning and 99.1MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 19:07:51,420 INFO L158 Benchmark]: TraceAbstraction took 6835.40ms. Allocated memory was 176.2MB in the beginning and 216.0MB in the end (delta: 39.8MB). Free memory was 98.4MB in the beginning and 168.9MB in the end (delta: -70.5MB). Peak memory consumption was 77.4MB. Max. memory is 16.1GB. [2024-11-08 19:07:51,420 INFO L158 Benchmark]: Witness Printer took 6.35ms. Allocated memory is still 216.0MB. Free memory is still 168.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:07:51,426 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 107.0MB. Free memory is still 54.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.11ms. Allocated memory is still 176.2MB. Free memory was 137.5MB in the beginning and 122.4MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.49ms. Allocated memory is still 176.2MB. Free memory was 122.1MB in the beginning and 120.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.89ms. Allocated memory is still 176.2MB. Free memory was 120.1MB in the beginning and 116.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 529.02ms. Allocated memory is still 176.2MB. Free memory was 116.9MB in the beginning and 99.1MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6835.40ms. Allocated memory was 176.2MB in the beginning and 216.0MB in the end (delta: 39.8MB). Free memory was 98.4MB in the beginning and 168.9MB in the end (delta: -70.5MB). Peak memory consumption was 77.4MB. Max. memory is 16.1GB. * Witness Printer took 6.35ms. Allocated memory is still 216.0MB. Free memory is still 168.9MB. 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 someBinaryDOUBLEComparisonOperation at line 121, overapproximation of someUnaryDOUBLEoperation at line 61. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 0; [L25] signed char var_1_4 = 5; [L26] signed char var_1_7 = 0; [L27] signed char var_1_8 = 16; [L28] signed char var_1_9 = 4; [L29] unsigned long int var_1_10 = 128; [L30] unsigned long int var_1_11 = 1422462314; [L31] signed short int var_1_12 = 8; [L32] signed short int var_1_15 = -50; [L33] unsigned long int var_1_16 = 1; [L34] unsigned long int var_1_17 = 3609236770; [L35] unsigned long int var_1_18 = 2902762324; [L36] double var_1_19 = 3.8; [L37] double var_1_20 = 255.75; [L38] unsigned short int var_1_21 = 0; [L39] unsigned long int last_1_var_1_10 = 128; [L40] unsigned long int last_1_var_1_16 = 1; [L41] double last_1_var_1_19 = 3.8; VAL [isInitial=0, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=0, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L125] isInitial = 1 [L126] FCALL initially() [L127] int k_loop; [L128] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=0, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L128] COND FALSE !(k_loop < 1) VAL [isInitial=1, k_loop=0, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=0, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L128] COND TRUE k_loop < 1 [L129] CALL updateLastVariables() [L116] last_1_var_1_10 = var_1_10 [L117] last_1_var_1_16 = var_1_16 [L118] last_1_var_1_19 = var_1_19 VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=0, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L129] RET updateLastVariables() [L130] CALL updateVariables() [L88] var_1_2 = __VERIFIER_nondet_uchar() [L89] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L89] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L90] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L90] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L91] var_1_3 = __VERIFIER_nondet_uchar() [L92] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L92] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L93] CALL assume_abort_if_not(var_1_3 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L93] RET assume_abort_if_not(var_1_3 <= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L94] var_1_7 = __VERIFIER_nondet_char() [L95] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L95] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L96] CALL assume_abort_if_not(var_1_7 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L96] RET assume_abort_if_not(var_1_7 <= 63) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=16, var_1_9=4] [L97] var_1_8 = __VERIFIER_nondet_char() [L98] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=4] [L98] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=4] [L99] CALL assume_abort_if_not(var_1_8 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=4] [L99] RET assume_abort_if_not(var_1_8 <= 63) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=4] [L100] var_1_9 = __VERIFIER_nondet_char() [L101] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L101] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L102] CALL assume_abort_if_not(var_1_9 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L102] RET assume_abort_if_not(var_1_9 <= 126) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=1422462314, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L103] var_1_11 = __VERIFIER_nondet_ulong() [L104] CALL assume_abort_if_not(var_1_11 >= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L104] RET assume_abort_if_not(var_1_11 >= 1073741823) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L105] CALL assume_abort_if_not(var_1_11 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L105] RET assume_abort_if_not(var_1_11 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=3609236770, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L106] var_1_17 = __VERIFIER_nondet_ulong() [L107] CALL assume_abort_if_not(var_1_17 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L107] RET assume_abort_if_not(var_1_17 >= 2147483647) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L108] CALL assume_abort_if_not(var_1_17 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L108] RET assume_abort_if_not(var_1_17 <= 4294967294) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=2902762324, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L109] var_1_18 = __VERIFIER_nondet_ulong() [L110] CALL assume_abort_if_not(var_1_18 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L110] RET assume_abort_if_not(var_1_18 >= 2147483647) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L111] CALL assume_abort_if_not(var_1_18 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L111] RET assume_abort_if_not(var_1_18 <= 4294967294) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=19/5, var_1_1=1, var_1_20=1023/4, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L112] var_1_20 = __VERIFIER_nondet_double() [L113] CALL assume_abort_if_not((var_1_20 >= -922337.2036854765600e+13F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854765600e+12F && var_1_20 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=19/5, var_1_1=1, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=19/5, var_1_1=1, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L113] RET assume_abort_if_not((var_1_20 >= -922337.2036854765600e+13F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854765600e+12F && var_1_20 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=19/5, var_1_1=1, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L130] RET updateVariables() [L131] CALL step() [L45] unsigned long int stepLocal_1 = last_1_var_1_16; [L46] unsigned long int stepLocal_0 = last_1_var_1_16; VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, stepLocal_0=1, stepLocal_1=1, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=19/5, var_1_1=1, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L47] COND TRUE stepLocal_1 != last_1_var_1_10 VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, stepLocal_0=1, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=19/5, var_1_1=1, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L48] COND FALSE !(var_1_8 <= stepLocal_0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=19/5, var_1_1=1, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=5, var_1_7=0, var_1_8=2, var_1_9=0] [L56] COND TRUE var_1_12 == var_1_12 [L57] var_1_4 = ((8 + ((((var_1_7) > (var_1_8)) ? (var_1_7) : (var_1_8)))) - var_1_9) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=128, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=19/5, var_1_1=1, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=10, var_1_7=0, var_1_8=2, var_1_9=0] [L59] var_1_1 = (var_1_2 || (! var_1_3)) [L60] var_1_10 = (4027026809u - (((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))) - var_1_7)) [L61] var_1_19 = ((((((((var_1_20) < 0 ) ? -(var_1_20) : (var_1_20)))) < (1.4)) ? (((((var_1_20) < 0 ) ? -(var_1_20) : (var_1_20)))) : (1.4))) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=6174510459, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=7/5, var_1_1=1, var_1_20=7/5, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=10, var_1_7=0, var_1_8=2, var_1_9=0] [L62] COND TRUE \read(var_1_1) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=6174510459, var_1_11=-2147483650, var_1_12=8, var_1_15=-50, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=7/5, var_1_1=1, var_1_20=7/5, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=10, var_1_7=0, var_1_8=2, var_1_9=0] [L63] COND FALSE !(var_1_19 >= var_1_19) [L68] var_1_15 = var_1_7 VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=6174510459, var_1_11=-2147483650, var_1_12=8, var_1_15=0, var_1_16=1, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=7/5, var_1_1=1, var_1_20=7/5, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=10, var_1_7=0, var_1_8=2, var_1_9=0] [L73] COND TRUE var_1_19 != var_1_19 [L74] var_1_16 = (((((var_1_11) < (var_1_7)) ? (var_1_11) : (var_1_7))) + var_1_8) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=6174510459, var_1_11=-2147483650, var_1_12=8, var_1_15=0, var_1_16=2, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=7/5, var_1_1=1, var_1_20=7/5, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=10, var_1_7=0, var_1_8=2, var_1_9=0] [L82] unsigned char stepLocal_2 = var_1_1; VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, stepLocal_2=1, var_1_10=6174510459, var_1_11=-2147483650, var_1_12=8, var_1_15=0, var_1_16=2, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=7/5, var_1_1=1, var_1_20=7/5, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=10, var_1_7=0, var_1_8=2, var_1_9=0] [L83] COND TRUE (var_1_16 == (var_1_8 - var_1_9)) && stepLocal_2 [L84] var_1_21 = var_1_9 VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=6174510459, var_1_11=-2147483650, var_1_12=8, var_1_15=0, var_1_16=2, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=7/5, var_1_1=1, var_1_20=7/5, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=10, var_1_7=0, var_1_8=2, var_1_9=0] [L131] RET step() [L132] CALL, EXPR property() [L121-L122] return (((((((var_1_1 == ((unsigned char) (var_1_2 || (! var_1_3)))) && ((var_1_12 == var_1_12) ? (var_1_4 == ((signed char) ((8 + ((((var_1_7) > (var_1_8)) ? (var_1_7) : (var_1_8)))) - var_1_9))) : 1)) && (var_1_10 == ((unsigned long int) (4027026809u - (((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))) - var_1_7))))) && ((last_1_var_1_16 != last_1_var_1_10) ? ((var_1_8 <= last_1_var_1_16) ? (((- last_1_var_1_19) >= last_1_var_1_19) ? (var_1_12 == ((signed short int) var_1_8)) : 1) : 1) : (var_1_12 == ((signed short int) var_1_9)))) && (var_1_1 ? ((var_1_19 >= var_1_19) ? ((! var_1_3) ? (var_1_15 == ((signed short int) var_1_8)) : 1) : (var_1_15 == ((signed short int) var_1_7))) : (var_1_15 == ((signed short int) 5)))) && ((var_1_19 != var_1_19) ? (var_1_16 == ((unsigned long int) (((((var_1_11) < (var_1_7)) ? (var_1_11) : (var_1_7))) + var_1_8))) : ((var_1_4 > var_1_12) ? (var_1_16 == ((unsigned long int) (var_1_17 - (var_1_11 - var_1_8)))) : (var_1_16 == ((unsigned long int) (((((var_1_17) > (var_1_18)) ? (var_1_17) : (var_1_18))) - var_1_9)))))) && (var_1_19 == ((double) ((((((((var_1_20) < 0 ) ? -(var_1_20) : (var_1_20)))) < (1.4)) ? (((((var_1_20) < 0 ) ? -(var_1_20) : (var_1_20)))) : (1.4)))))) && (((var_1_16 == (var_1_8 - var_1_9)) && var_1_1) ? (var_1_21 == ((unsigned short int) var_1_9)) : 1) ; VAL [\result=0, isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=6174510459, var_1_11=-2147483650, var_1_12=8, var_1_15=0, var_1_16=2, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=7/5, var_1_1=1, var_1_20=7/5, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=10, var_1_7=0, var_1_8=2, var_1_9=0] [L132] RET, EXPR property() [L132] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=6174510459, var_1_11=-2147483650, var_1_12=8, var_1_15=0, var_1_16=2, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=7/5, var_1_1=1, var_1_20=7/5, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=10, var_1_7=0, var_1_8=2, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_16=1, last_1_var_1_19=19/5, var_1_10=6174510459, var_1_11=-2147483650, var_1_12=8, var_1_15=0, var_1_16=2, var_1_17=9223372043297226751U, var_1_18=9223372043297226751U, var_1_19=7/5, var_1_1=1, var_1_20=7/5, var_1_21=0, var_1_2=1, var_1_3=0, var_1_4=10, var_1_7=0, var_1_8=2, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.5s, OverallIterations: 5, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 177 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 161 mSDsluCounter, 722 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 435 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 214 IncrementalHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 287 mSDtfsCounter, 214 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 402 GetRequests, 379 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 40 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 670 NumberOfCodeBlocks, 670 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 663 ConstructedInterpolants, 0 QuantifiedInterpolants, 1504 SizeOfPredicates, 3 NumberOfNonLiveVariables, 277 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 3147/3264 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 19:07:51,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/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_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-11.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b73443b934cb8f13c6c3c0966f6912c28ac30fc0ad18f5f644522c4d2e3ecf6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:07:54,155 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:07:54,222 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 19:07:54,227 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:07:54,228 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:07:54,268 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:07:54,269 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:07:54,269 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:07:54,270 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:07:54,270 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:07:54,271 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:07:54,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:07:54,272 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:07:54,272 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:07:54,273 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:07:54,273 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:07:54,273 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:07:54,274 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:07:54,274 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:07:54,274 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:07:54,275 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:07:54,275 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:07:54,275 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:07:54,276 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 19:07:54,276 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 19:07:54,276 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:07:54,277 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 19:07:54,277 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:07:54,277 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:07:54,278 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:07:54,278 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:07:54,278 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:07:54,279 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:07:54,279 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:07:54,279 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:07:54,280 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:07:54,280 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:07:54,280 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:07:54,281 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 19:07:54,281 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 19:07:54,281 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:07:54,284 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:07:54,284 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:07:54,285 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:07:54,285 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_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b73443b934cb8f13c6c3c0966f6912c28ac30fc0ad18f5f644522c4d2e3ecf6 [2024-11-08 19:07:54,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:07:54,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:07:54,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:07:54,778 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:07:54,778 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:07:54,780 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-11.i Unable to find full path for "g++" [2024-11-08 19:07:56,923 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:07:57,180 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:07:57,180 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-11.i [2024-11-08 19:07:57,197 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/data/c1d783e2e/661bb7501aca477bad1d52a3d913a11e/FLAG563b572f8 [2024-11-08 19:07:57,221 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/data/c1d783e2e/661bb7501aca477bad1d52a3d913a11e [2024-11-08 19:07:57,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:07:57,226 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:07:57,229 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:07:57,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:07:57,238 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:07:57,239 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:07:57" (1/1) ... [2024-11-08 19:07:57,242 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c0f9b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:57, skipping insertion in model container [2024-11-08 19:07:57,243 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:07:57" (1/1) ... [2024-11-08 19:07:57,289 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:07:57,551 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-11.i[915,928] [2024-11-08 19:07:57,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:07:57,681 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:07:57,697 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-11.i[915,928] [2024-11-08 19:07:57,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:07:57,767 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:07:57,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:57 WrapperNode [2024-11-08 19:07:57,768 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:07:57,769 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:07:57,770 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:07:57,770 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:07:57,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:57" (1/1) ... [2024-11-08 19:07:57,796 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:57" (1/1) ... [2024-11-08 19:07:57,855 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 131 [2024-11-08 19:07:57,855 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:07:57,856 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:07:57,856 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:07:57,856 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:07:57,875 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:57" (1/1) ... [2024-11-08 19:07:57,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:57" (1/1) ... [2024-11-08 19:07:57,884 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:57" (1/1) ... [2024-11-08 19:07:57,917 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 19:07:57,917 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:57" (1/1) ... [2024-11-08 19:07:57,918 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:57" (1/1) ... [2024-11-08 19:07:57,937 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:57" (1/1) ... [2024-11-08 19:07:57,947 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:57" (1/1) ... [2024-11-08 19:07:57,949 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:57" (1/1) ... [2024-11-08 19:07:57,953 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:57" (1/1) ... [2024-11-08 19:07:57,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:07:57,964 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:07:57,964 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:07:57,964 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:07:57,965 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:57" (1/1) ... [2024-11-08 19:07:57,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:07:57,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:07:58,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:07:58,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:07:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:07:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 19:07:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 19:07:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 19:07:58,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:07:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:07:58,140 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:07:58,143 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:07:58,607 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-08 19:07:58,607 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:07:58,628 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:07:58,629 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:07:58,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:07:58 BoogieIcfgContainer [2024-11-08 19:07:58,629 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:07:58,632 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:07:58,632 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:07:58,636 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:07:58,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:07:57" (1/3) ... [2024-11-08 19:07:58,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42cebc02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:07:58, skipping insertion in model container [2024-11-08 19:07:58,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:57" (2/3) ... [2024-11-08 19:07:58,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42cebc02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:07:58, skipping insertion in model container [2024-11-08 19:07:58,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:07:58" (3/3) ... [2024-11-08 19:07:58,645 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-11.i [2024-11-08 19:07:58,665 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:07:58,665 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 19:07:58,766 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:07:58,773 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@112dac7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:07:58,774 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 19:07:58,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 38 states have (on average 1.394736842105263) internal successors, (53), 39 states have internal predecessors, (53), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 19:07:58,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 19:07:58,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:58,794 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:58,795 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:58,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:58,801 INFO L85 PathProgramCache]: Analyzing trace with hash -2115207085, now seen corresponding path program 1 times [2024-11-08 19:07:58,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:07:58,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181714935] [2024-11-08 19:07:58,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:58,818 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:58,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:07:58,822 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:07:58,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-08 19:07:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:59,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 19:07:59,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:59,136 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2024-11-08 19:07:59,139 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:07:59,140 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:07:59,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181714935] [2024-11-08 19:07:59,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181714935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:59,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:59,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:07:59,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763972538] [2024-11-08 19:07:59,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:59,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 19:07:59,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:07:59,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 19:07:59,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:07:59,190 INFO L87 Difference]: Start difference. First operand has 58 states, 38 states have (on average 1.394736842105263) internal successors, (53), 39 states have internal predecessors, (53), 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 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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) [2024-11-08 19:07:59,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:59,239 INFO L93 Difference]: Finished difference Result 113 states and 188 transitions. [2024-11-08 19:07:59,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 19:07:59,242 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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 111 [2024-11-08 19:07:59,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:59,253 INFO L225 Difference]: With dead ends: 113 [2024-11-08 19:07:59,253 INFO L226 Difference]: Without dead ends: 54 [2024-11-08 19:07:59,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:07:59,267 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:59,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:07:59,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-08 19:07:59,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-08 19:07:59,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 35 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) [2024-11-08 19:07:59,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 79 transitions. [2024-11-08 19:07:59,339 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 79 transitions. Word has length 111 [2024-11-08 19:07:59,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:59,341 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 79 transitions. [2024-11-08 19:07:59,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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) [2024-11-08 19:07:59,342 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 79 transitions. [2024-11-08 19:07:59,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 19:07:59,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:59,347 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:59,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-08 19:07:59,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:59,553 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:59,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:59,554 INFO L85 PathProgramCache]: Analyzing trace with hash 2017940119, now seen corresponding path program 1 times [2024-11-08 19:07:59,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:07:59,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464157391] [2024-11-08 19:07:59,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:59,557 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:07:59,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:07:59,560 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:07:59,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-08 19:07:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:59,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:07:59,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:08:00,774 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:08:00,775 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:08:00,775 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:08:00,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464157391] [2024-11-08 19:08:00,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [464157391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:00,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:00,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:08:00,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885586888] [2024-11-08 19:08:00,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:00,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:08:00,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:08:00,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:08:00,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:08:00,780 INFO L87 Difference]: Start difference. First operand 54 states and 79 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:08:01,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:01,161 INFO L93 Difference]: Finished difference Result 158 states and 233 transitions. [2024-11-08 19:08:01,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:08:01,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 111 [2024-11-08 19:08:01,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:01,166 INFO L225 Difference]: With dead ends: 158 [2024-11-08 19:08:01,166 INFO L226 Difference]: Without dead ends: 107 [2024-11-08 19:08:01,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:08:01,168 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 51 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:08:01,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 253 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:08:01,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-08 19:08:01,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 88. [2024-11-08 19:08:01,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 51 states have (on average 1.196078431372549) internal successors, (61), 51 states have internal predecessors, (61), 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) [2024-11-08 19:08:01,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 129 transitions. [2024-11-08 19:08:01,222 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 129 transitions. Word has length 111 [2024-11-08 19:08:01,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:01,225 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 129 transitions. [2024-11-08 19:08:01,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:08:01,226 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 129 transitions. [2024-11-08 19:08:01,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 19:08:01,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:01,232 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:01,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-08 19:08:01,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:01,434 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:01,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:01,435 INFO L85 PathProgramCache]: Analyzing trace with hash -402306611, now seen corresponding path program 1 times [2024-11-08 19:08:01,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:08:01,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682497007] [2024-11-08 19:08:01,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:01,437 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:01,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:08:01,441 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:08:01,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-08 19:08:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:01,643 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:08:01,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:08:01,972 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 178 proven. 39 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-11-08 19:08:01,972 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:08:02,303 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 9 proven. 39 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 19:08:02,306 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:08:02,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682497007] [2024-11-08 19:08:02,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682497007] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:08:02,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:08:02,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2024-11-08 19:08:02,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029121119] [2024-11-08 19:08:02,307 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:08:02,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:08:02,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:08:02,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:08:02,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:08:02,312 INFO L87 Difference]: Start difference. First operand 88 states and 129 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-08 19:08:02,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:02,838 INFO L93 Difference]: Finished difference Result 155 states and 219 transitions. [2024-11-08 19:08:02,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:08:02,843 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 112 [2024-11-08 19:08:02,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:02,845 INFO L225 Difference]: With dead ends: 155 [2024-11-08 19:08:02,845 INFO L226 Difference]: Without dead ends: 104 [2024-11-08 19:08:02,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 215 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:08:02,850 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 79 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:08:02,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 124 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:08:02,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-08 19:08:02,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 96. [2024-11-08 19:08:02,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 57 states have (on average 1.1403508771929824) internal successors, (65), 57 states have internal predecessors, (65), 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) [2024-11-08 19:08:02,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 133 transitions. [2024-11-08 19:08:02,894 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 133 transitions. Word has length 112 [2024-11-08 19:08:02,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:02,895 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 133 transitions. [2024-11-08 19:08:02,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-08 19:08:02,896 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 133 transitions. [2024-11-08 19:08:02,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 19:08:02,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:02,898 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:02,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-08 19:08:03,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:03,099 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:03,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:03,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1145942706, now seen corresponding path program 1 times [2024-11-08 19:08:03,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:08:03,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231028763] [2024-11-08 19:08:03,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:03,101 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:03,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:08:03,105 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:08:03,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-08 19:08:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:03,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 19:08:03,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:08:03,713 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 19:08:03,713 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:08:03,713 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:08:03,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231028763] [2024-11-08 19:08:03,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231028763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:03,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:03,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:08:03,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768821458] [2024-11-08 19:08:03,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:03,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:08:03,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:08:03,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:08:03,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:08:03,717 INFO L87 Difference]: Start difference. First operand 96 states and 133 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:08:04,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:04,053 INFO L93 Difference]: Finished difference Result 155 states and 216 transitions. [2024-11-08 19:08:04,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:08:04,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 113 [2024-11-08 19:08:04,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:04,056 INFO L225 Difference]: With dead ends: 155 [2024-11-08 19:08:04,056 INFO L226 Difference]: Without dead ends: 100 [2024-11-08 19:08:04,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:08:04,062 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 56 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:08:04,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 177 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:08:04,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-08 19:08:04,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96. [2024-11-08 19:08:04,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 57 states have (on average 1.105263157894737) internal successors, (63), 57 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) [2024-11-08 19:08:04,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 131 transitions. [2024-11-08 19:08:04,114 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 131 transitions. Word has length 113 [2024-11-08 19:08:04,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:04,117 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 131 transitions. [2024-11-08 19:08:04,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 19:08:04,117 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 131 transitions. [2024-11-08 19:08:04,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-08 19:08:04,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:04,119 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:04,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-08 19:08:04,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:04,320 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:04,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:04,321 INFO L85 PathProgramCache]: Analyzing trace with hash 2087613425, now seen corresponding path program 1 times [2024-11-08 19:08:04,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:08:04,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963745268] [2024-11-08 19:08:04,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:04,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 19:08:04,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 19:08:04,327 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 19:08:04,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d067b4a3-3981-4fa3-b72b-cbdc880a0a77/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-08 19:08:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:04,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 19:08:04,493 INFO L278 TraceCheckSpWp]: Computing forward predicates...