./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-11.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-11.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 97b1061e2cabddcb3093af5cecca71c7ed1fd9a404462e73f738c3d404d688bc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:01:46,881 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:01:47,013 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 12:01:47,020 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:01:47,021 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:01:47,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:01:47,070 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:01:47,071 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:01:47,072 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:01:47,077 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:01:47,078 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:01:47,079 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:01:47,080 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:01:47,082 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:01:47,082 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:01:47,083 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:01:47,083 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:01:47,084 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:01:47,084 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:01:47,085 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:01:47,085 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:01:47,086 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:01:47,086 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:01:47,087 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:01:47,087 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:01:47,088 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:01:47,088 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:01:47,089 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:01:47,089 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:01:47,090 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:01:47,091 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:01:47,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:01:47,092 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:01:47,092 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:01:47,092 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:01:47,093 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:01:47,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:01:47,093 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:01:47,093 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:01:47,094 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:01:47,094 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:01:47,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:01:47,094 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_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97b1061e2cabddcb3093af5cecca71c7ed1fd9a404462e73f738c3d404d688bc [2023-11-26 12:01:47,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:01:47,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:01:47,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:01:47,544 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:01:47,545 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:01:47,546 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-11.i [2023-11-26 12:01:50,619 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:01:50,886 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:01:50,887 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-11.i [2023-11-26 12:01:50,897 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/data/4d377f252/b8c0dcd470f049299b52b0a29adc8eb5/FLAGcb2b7d6c7 [2023-11-26 12:01:50,912 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/data/4d377f252/b8c0dcd470f049299b52b0a29adc8eb5 [2023-11-26 12:01:50,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:01:50,917 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:01:50,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:01:50,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:01:50,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:01:50,930 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:01:50" (1/1) ... [2023-11-26 12:01:50,931 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@274ca0f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:50, skipping insertion in model container [2023-11-26 12:01:50,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:01:50" (1/1) ... [2023-11-26 12:01:50,962 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:01:51,114 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-11.i[917,930] [2023-11-26 12:01:51,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:01:51,176 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:01:51,190 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-11.i[917,930] [2023-11-26 12:01:51,220 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:01:51,238 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:01:51,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:51 WrapperNode [2023-11-26 12:01:51,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:01:51,240 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:01:51,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:01:51,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:01:51,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:51" (1/1) ... [2023-11-26 12:01:51,259 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:51" (1/1) ... [2023-11-26 12:01:51,306 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 113 [2023-11-26 12:01:51,306 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:01:51,307 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:01:51,307 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:01:51,307 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:01:51,328 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:51" (1/1) ... [2023-11-26 12:01:51,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:51" (1/1) ... [2023-11-26 12:01:51,331 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:51" (1/1) ... [2023-11-26 12:01:51,363 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 12:01:51,364 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:51" (1/1) ... [2023-11-26 12:01:51,364 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:51" (1/1) ... [2023-11-26 12:01:51,374 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:51" (1/1) ... [2023-11-26 12:01:51,377 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:51" (1/1) ... [2023-11-26 12:01:51,379 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:51" (1/1) ... [2023-11-26 12:01:51,381 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:51" (1/1) ... [2023-11-26 12:01:51,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:01:51,386 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:01:51,386 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:01:51,386 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:01:51,387 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:51" (1/1) ... [2023-11-26 12:01:51,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:01:51,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:51,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:01:51,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:01:51,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:01:51,561 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 12:01:51,563 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 12:01:51,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:01:51,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:01:51,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:01:51,684 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:01:51,687 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:01:52,068 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:01:52,117 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:01:52,118 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:01:52,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:01:52 BoogieIcfgContainer [2023-11-26 12:01:52,118 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:01:52,120 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:01:52,121 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:01:52,124 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:01:52,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:01:50" (1/3) ... [2023-11-26 12:01:52,125 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140f2908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:01:52, skipping insertion in model container [2023-11-26 12:01:52,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:51" (2/3) ... [2023-11-26 12:01:52,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140f2908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:01:52, skipping insertion in model container [2023-11-26 12:01:52,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:01:52" (3/3) ... [2023-11-26 12:01:52,128 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-11.i [2023-11-26 12:01:52,148 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:01:52,148 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:01:52,200 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:01:52,207 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@392a4bfb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:01:52,207 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:01:52,211 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 30 states have internal predecessors, (42), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 12:01:52,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-26 12:01:52,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:52,228 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:52,230 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:01:52,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:52,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1788450943, now seen corresponding path program 1 times [2023-11-26 12:01:52,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:52,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486827107] [2023-11-26 12:01:52,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:52,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 12:01:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 12:01:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 12:01:52,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-26 12:01:52,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 12:01:52,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-26 12:01:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-26 12:01:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-26 12:01:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 12:01:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-26 12:01:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-26 12:01:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 12:01:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 12:01:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-26 12:01:52,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-26 12:01:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-26 12:01:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,676 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-26 12:01:52,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:52,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486827107] [2023-11-26 12:01:52,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486827107] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:52,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:52,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:52,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286374266] [2023-11-26 12:01:52,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:52,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:01:52,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:52,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:01:52,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:01:52,720 INFO L87 Difference]: Start difference. First operand has 48 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 30 states have internal predecessors, (42), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-26 12:01:52,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:52,768 INFO L93 Difference]: Finished difference Result 93 states and 162 transitions. [2023-11-26 12:01:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:01:52,770 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 100 [2023-11-26 12:01:52,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:52,779 INFO L225 Difference]: With dead ends: 93 [2023-11-26 12:01:52,779 INFO L226 Difference]: Without dead ends: 46 [2023-11-26 12:01:52,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:01:52,787 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:52,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:52,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-26 12:01:52,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-26 12:01:52,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 28 states have internal predecessors, (37), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 12:01:52,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 69 transitions. [2023-11-26 12:01:52,835 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 69 transitions. Word has length 100 [2023-11-26 12:01:52,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:52,836 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 69 transitions. [2023-11-26 12:01:52,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-26 12:01:52,836 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 69 transitions. [2023-11-26 12:01:52,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-26 12:01:52,841 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:52,841 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:52,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:01:52,842 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:01:52,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:52,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1112841215, now seen corresponding path program 1 times [2023-11-26 12:01:52,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:52,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360531765] [2023-11-26 12:01:52,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:52,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:53,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 12:01:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:53,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 12:01:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:53,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 12:01:53,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:53,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-26 12:01:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:53,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 12:01:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:53,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-26 12:01:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:53,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-26 12:01:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:53,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-26 12:01:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:53,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 12:01:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:53,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-26 12:01:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:53,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-26 12:01:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:53,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 12:01:53,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:53,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 12:01:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:53,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-26 12:01:53,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:53,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-26 12:01:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:53,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-26 12:01:53,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:53,511 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-26 12:01:53,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:53,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360531765] [2023-11-26 12:01:53,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360531765] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:53,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:53,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:01:53,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949102506] [2023-11-26 12:01:53,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:53,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:53,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:53,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:53,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:53,525 INFO L87 Difference]: Start difference. First operand 46 states and 69 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-26 12:01:53,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:53,612 INFO L93 Difference]: Finished difference Result 136 states and 205 transitions. [2023-11-26 12:01:53,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:53,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 100 [2023-11-26 12:01:53,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:53,619 INFO L225 Difference]: With dead ends: 136 [2023-11-26 12:01:53,620 INFO L226 Difference]: Without dead ends: 91 [2023-11-26 12:01:53,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:53,622 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 35 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:53,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 122 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:53,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-26 12:01:53,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 89. [2023-11-26 12:01:53,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 54 states have (on average 1.3148148148148149) internal successors, (71), 54 states have internal predecessors, (71), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-26 12:01:53,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 135 transitions. [2023-11-26 12:01:53,680 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 135 transitions. Word has length 100 [2023-11-26 12:01:53,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:53,683 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 135 transitions. [2023-11-26 12:01:53,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-26 12:01:53,683 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 135 transitions. [2023-11-26 12:01:53,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-26 12:01:53,691 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:53,691 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:53,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:01:53,692 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:01:53,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:53,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1112900797, now seen corresponding path program 1 times [2023-11-26 12:01:53,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:53,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159630033] [2023-11-26 12:01:53,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:53,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:01:53,856 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:01:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:01:54,006 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:01:54,006 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 12:01:54,008 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 12:01:54,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:01:54,014 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-26 12:01:54,020 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:01:54,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:01:54 BoogieIcfgContainer [2023-11-26 12:01:54,102 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:01:54,103 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:01:54,103 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:01:54,103 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:01:54,104 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:01:52" (3/4) ... [2023-11-26 12:01:54,107 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 12:01:54,108 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:01:54,109 INFO L158 Benchmark]: Toolchain (without parser) took 3192.13ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 133.2MB in the beginning and 112.9MB in the end (delta: 20.3MB). Peak memory consumption was 54.4MB. Max. memory is 16.1GB. [2023-11-26 12:01:54,109 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 119.5MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:01:54,110 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.85ms. Allocated memory is still 163.6MB. Free memory was 133.2MB in the beginning and 120.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 12:01:54,112 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.65ms. Allocated memory is still 163.6MB. Free memory was 120.1MB in the beginning and 117.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:01:54,114 INFO L158 Benchmark]: Boogie Preprocessor took 78.42ms. Allocated memory is still 163.6MB. Free memory was 117.3MB in the beginning and 112.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:01:54,115 INFO L158 Benchmark]: RCFGBuilder took 732.18ms. Allocated memory is still 163.6MB. Free memory was 112.1MB in the beginning and 116.7MB in the end (delta: -4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 12:01:54,116 INFO L158 Benchmark]: TraceAbstraction took 1982.09ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 115.4MB in the beginning and 112.9MB in the end (delta: 2.5MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2023-11-26 12:01:54,117 INFO L158 Benchmark]: Witness Printer took 4.98ms. Allocated memory is still 197.1MB. Free memory is still 112.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:01:54,120 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 119.5MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.85ms. Allocated memory is still 163.6MB. Free memory was 133.2MB in the beginning and 120.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.65ms. Allocated memory is still 163.6MB. Free memory was 120.1MB in the beginning and 117.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.42ms. Allocated memory is still 163.6MB. Free memory was 117.3MB in the beginning and 112.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 732.18ms. Allocated memory is still 163.6MB. Free memory was 112.1MB in the beginning and 116.7MB in the end (delta: -4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1982.09ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 115.4MB in the beginning and 112.9MB in the end (delta: 2.5MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. * Witness Printer took 4.98ms. Allocated memory is still 197.1MB. Free memory is still 112.9MB. 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 100, overapproximation of someBinaryFLOATComparisonOperation at line 100. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -16; [L23] double var_1_2 = 50.75; [L24] double var_1_3 = 7.675; [L25] signed char var_1_7 = 10; [L26] float var_1_8 = 32.5; [L27] float var_1_9 = 1000000.7; [L28] float var_1_10 = 2.4; [L29] unsigned char var_1_11 = 1; [L30] unsigned char var_1_12 = 1; [L31] unsigned char var_1_13 = 1; [L32] unsigned char var_1_14 = 5; [L33] unsigned char var_1_15 = 200; [L34] unsigned char var_1_16 = 10; [L35] unsigned char var_1_17 = 1; [L36] unsigned char last_1_var_1_11 = 1; [L104] isInitial = 1 [L105] FCALL initially() [L106] COND TRUE 1 [L107] CALL updateLastVariables() [L97] last_1_var_1_11 = var_1_11 [L107] RET updateLastVariables() [L108] CALL updateVariables() [L69] var_1_2 = __VERIFIER_nondet_double() [L70] CALL assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=12/5, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_3=307/40, var_1_7=10, var_1_8=65/2, var_1_9=10000007/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=12/5, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_3=307/40, var_1_7=10, var_1_8=65/2, var_1_9=10000007/10] [L70] RET assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=12/5, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_3=307/40, var_1_7=10, var_1_8=65/2, var_1_9=10000007/10] [L71] var_1_3 = __VERIFIER_nondet_double() [L72] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=12/5, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=10, var_1_8=65/2, var_1_9=10000007/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=12/5, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=10, var_1_8=65/2, var_1_9=10000007/10] [L72] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=12/5, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=10, var_1_8=65/2, var_1_9=10000007/10] [L73] var_1_7 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=12/5, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2, var_1_9=10000007/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=12/5, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2, var_1_9=10000007/10] [L74] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=12/5, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2, var_1_9=10000007/10] [L75] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=12/5, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2, var_1_9=10000007/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=12/5, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2, var_1_9=10000007/10] [L75] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=12/5, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2, var_1_9=10000007/10] [L76] var_1_9 = __VERIFIER_nondet_float() [L77] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=12/5, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=12/5, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L77] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=12/5, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L78] var_1_10 = __VERIFIER_nondet_float() [L79] CALL assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L79] RET assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L80] var_1_12 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L81] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L82] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L82] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L83] var_1_13 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_13 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L84] RET assume_abort_if_not(var_1_13 >= 1) VAL [isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L85] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L85] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L86] var_1_15 = __VERIFIER_nondet_uchar() [L87] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L87] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L88] CALL assume_abort_if_not(var_1_15 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=254, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=254, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L88] RET assume_abort_if_not(var_1_15 <= 254) VAL [isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=254, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L89] var_1_16 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=254, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=254, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L90] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=254, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L91] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=254, var_1_16=254, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=254, var_1_16=254, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L91] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=254, var_1_16=254, var_1_17=1, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L92] var_1_17 = __VERIFIER_nondet_uchar() [L93] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=254, var_1_16=254, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=254, var_1_16=254, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L93] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=254, var_1_16=254, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L94] CALL assume_abort_if_not(var_1_17 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=254, var_1_16=254, var_1_17=253, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=254, var_1_16=254, var_1_17=253, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L94] RET assume_abort_if_not(var_1_17 <= 254) VAL [isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=254, var_1_16=254, var_1_17=253, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L108] RET updateVariables() [L109] CALL step() [L40] COND FALSE !(var_1_3 >= var_1_2) VAL [isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=254, var_1_16=254, var_1_17=253, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L49] COND FALSE !(var_1_8 <= var_1_8) VAL [isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=254, var_1_16=254, var_1_17=253, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L52] unsigned char stepLocal_0 = var_1_11; VAL [isInitial=1, last_1_var_1_11=1, stepLocal_0=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=254, var_1_16=254, var_1_17=253, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L53] COND FALSE !((var_1_2 - 5.25) < (var_1_8 * (var_1_8 * 199.4))) VAL [isInitial=1, last_1_var_1_11=1, stepLocal_0=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=5, var_1_15=254, var_1_16=254, var_1_17=253, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L62] COND FALSE !(! var_1_11) [L65] var_1_14 = var_1_16 VAL [isInitial=1, last_1_var_1_11=1, stepLocal_0=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=254, var_1_15=254, var_1_16=254, var_1_17=253, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L109] RET step() [L110] CALL, EXPR property() [L100-L101] return (((((var_1_2 - 5.25) < (var_1_8 * (var_1_8 * 199.4))) ? ((var_1_11 && var_1_11) ? ((var_1_8 < var_1_8) ? (var_1_1 == ((signed char) var_1_7)) : (var_1_1 == ((signed char) var_1_7))) : 1) : 1) && ((var_1_3 >= var_1_2) ? (last_1_var_1_11 ? ((! last_1_var_1_11) ? (var_1_8 == ((float) ((((var_1_9) > ((10.25f + var_1_10))) ? (var_1_9) : ((10.25f + var_1_10)))))) : (var_1_8 == ((float) var_1_9))) : 1) : 1)) && ((var_1_8 <= var_1_8) ? (var_1_11 == ((unsigned char) (var_1_12 || var_1_13))) : 1)) && ((! var_1_11) ? (var_1_14 == ((unsigned char) ((((((((var_1_15) < (((((var_1_16) > (5)) ? (var_1_16) : (5))))) ? (var_1_15) : (((((var_1_16) > (5)) ? (var_1_16) : (5))))))) < (var_1_17)) ? (((((var_1_15) < (((((var_1_16) > (5)) ? (var_1_16) : (5))))) ? (var_1_15) : (((((var_1_16) > (5)) ? (var_1_16) : (5))))))) : (var_1_17))))) : (var_1_14 == ((unsigned char) var_1_16))) ; [L110] RET, EXPR property() [L110] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=254, var_1_15=254, var_1_16=254, var_1_17=253, var_1_1=-16, var_1_7=-127, var_1_8=65/2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=1, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=254, var_1_15=254, var_1_16=254, var_1_17=253, var_1_1=-16, var_1_7=-127, var_1_8=65/2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 188 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 128 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=2, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 300 NumberOfCodeBlocks, 300 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 262 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 960/960 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-26 12:01:54,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-11.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 97b1061e2cabddcb3093af5cecca71c7ed1fd9a404462e73f738c3d404d688bc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:01:56,957 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:01:57,066 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 12:01:57,077 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:01:57,077 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:01:57,123 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:01:57,124 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:01:57,124 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:01:57,125 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:01:57,130 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:01:57,131 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:01:57,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:01:57,132 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:01:57,134 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:01:57,134 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:01:57,135 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:01:57,135 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:01:57,136 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:01:57,136 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:01:57,137 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:01:57,138 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:01:57,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:01:57,139 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:01:57,139 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:01:57,139 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 12:01:57,140 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 12:01:57,140 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:01:57,141 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:01:57,141 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:01:57,141 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:01:57,143 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:01:57,143 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:01:57,143 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:01:57,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:01:57,144 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:01:57,144 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:01:57,145 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:01:57,145 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 12:01:57,146 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 12:01:57,146 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:01:57,146 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:01:57,146 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:01:57,146 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:01:57,147 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:01:57,147 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 12:01:57,147 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_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97b1061e2cabddcb3093af5cecca71c7ed1fd9a404462e73f738c3d404d688bc [2023-11-26 12:01:57,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:01:57,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:01:57,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:01:57,594 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:01:57,594 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:01:57,597 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-11.i [2023-11-26 12:02:01,043 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:02:01,329 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:02:01,330 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-11.i [2023-11-26 12:02:01,347 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/data/e373bfd3c/df9d478c8d8247439be4e0a3a1b04900/FLAG860107e99 [2023-11-26 12:02:01,365 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/data/e373bfd3c/df9d478c8d8247439be4e0a3a1b04900 [2023-11-26 12:02:01,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:02:01,369 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:02:01,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:01,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:02:01,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:02:01,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:01" (1/1) ... [2023-11-26 12:02:01,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a30e398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:01, skipping insertion in model container [2023-11-26 12:02:01,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:01" (1/1) ... [2023-11-26 12:02:01,419 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:02:01,577 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-11.i[917,930] [2023-11-26 12:02:01,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:01,658 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:02:01,681 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-11.i[917,930] [2023-11-26 12:02:01,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:01,777 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:02:01,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:01 WrapperNode [2023-11-26 12:02:01,778 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:01,779 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:01,780 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:02:01,780 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:02:01,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:01" (1/1) ... [2023-11-26 12:02:01,817 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:01" (1/1) ... [2023-11-26 12:02:01,864 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 112 [2023-11-26 12:02:01,868 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:01,869 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:02:01,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:02:01,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:02:01,883 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:01" (1/1) ... [2023-11-26 12:02:01,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:01" (1/1) ... [2023-11-26 12:02:01,910 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:01" (1/1) ... [2023-11-26 12:02:01,925 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 12:02:01,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:01" (1/1) ... [2023-11-26 12:02:01,934 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:01" (1/1) ... [2023-11-26 12:02:01,955 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:01" (1/1) ... [2023-11-26 12:02:01,962 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:01" (1/1) ... [2023-11-26 12:02:01,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:01" (1/1) ... [2023-11-26 12:02:01,979 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:01" (1/1) ... [2023-11-26 12:02:01,983 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:02:01,991 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:02:01,991 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:02:01,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:02:01,993 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:01" (1/1) ... [2023-11-26 12:02:02,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:02,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:02,030 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:02,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:02:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:02:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 12:02:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 12:02:02,182 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 12:02:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:02:02,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:02:02,323 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:02:02,326 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:02:15,011 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:02:15,068 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:02:15,068 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:02:15,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:15 BoogieIcfgContainer [2023-11-26 12:02:15,069 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:02:15,072 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:02:15,072 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:02:15,075 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:02:15,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:02:01" (1/3) ... [2023-11-26 12:02:15,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b547d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:15, skipping insertion in model container [2023-11-26 12:02:15,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:01" (2/3) ... [2023-11-26 12:02:15,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b547d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:15, skipping insertion in model container [2023-11-26 12:02:15,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:15" (3/3) ... [2023-11-26 12:02:15,082 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-11.i [2023-11-26 12:02:15,103 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:02:15,104 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:02:15,156 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:02:15,163 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@33c5450c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:02:15,163 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:02:15,168 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 30 states have internal predecessors, (42), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 12:02:15,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-26 12:02:15,185 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:15,185 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:15,186 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:15,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:15,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1788450943, now seen corresponding path program 1 times [2023-11-26 12:02:15,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:02:15,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [299537672] [2023-11-26 12:02:15,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:15,203 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:02:15,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:02:15,207 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:02:15,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-26 12:02:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:15,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 12:02:15,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:15,996 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-26 12:02:15,996 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:02:15,997 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:02:15,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [299537672] [2023-11-26 12:02:15,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [299537672] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:15,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:15,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:16,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891554886] [2023-11-26 12:02:16,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:16,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:02:16,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:02:16,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:02:16,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:02:16,046 INFO L87 Difference]: Start difference. First operand has 48 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 30 states have internal predecessors, (42), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-26 12:02:20,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 12:02:20,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:20,322 INFO L93 Difference]: Finished difference Result 93 states and 162 transitions. [2023-11-26 12:02:20,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:02:20,401 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 100 [2023-11-26 12:02:20,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:20,409 INFO L225 Difference]: With dead ends: 93 [2023-11-26 12:02:20,410 INFO L226 Difference]: Without dead ends: 46 [2023-11-26 12:02:20,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:02:20,418 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:20,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-11-26 12:02:20,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-26 12:02:20,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-26 12:02:20,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 12:02:20,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 68 transitions. [2023-11-26 12:02:20,475 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 68 transitions. Word has length 100 [2023-11-26 12:02:20,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:20,476 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 68 transitions. [2023-11-26 12:02:20,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-26 12:02:20,477 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 68 transitions. [2023-11-26 12:02:20,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-26 12:02:20,483 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:20,483 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:20,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-26 12:02:20,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:02:20,697 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:20,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:20,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1112841215, now seen corresponding path program 1 times [2023-11-26 12:02:20,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:02:20,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924900353] [2023-11-26 12:02:20,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:20,699 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:02:20,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:02:20,701 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:02:20,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-26 12:02:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:21,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:02:21,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:22,880 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-26 12:02:22,881 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:02:22,881 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:02:22,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924900353] [2023-11-26 12:02:22,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [924900353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:22,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:22,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:22,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656180890] [2023-11-26 12:02:22,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:22,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:22,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:02:22,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:22,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:22,886 INFO L87 Difference]: Start difference. First operand 46 states and 68 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-26 12:02:27,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 12:02:31,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 12:02:35,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 12:02:40,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 12:02:44,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 12:02:48,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 12:02:52,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 12:02:52,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:52,763 INFO L93 Difference]: Finished difference Result 136 states and 202 transitions. [2023-11-26 12:02:52,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:52,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 100 [2023-11-26 12:02:52,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:52,767 INFO L225 Difference]: With dead ends: 136 [2023-11-26 12:02:52,768 INFO L226 Difference]: Without dead ends: 91 [2023-11-26 12:02:52,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:52,770 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 17 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.9s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:52,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 121 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 7 Unknown, 0 Unchecked, 29.9s Time] [2023-11-26 12:02:52,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-26 12:02:52,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 88. [2023-11-26 12:02:52,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 53 states have internal predecessors, (67), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-26 12:02:52,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 131 transitions. [2023-11-26 12:02:52,798 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 131 transitions. Word has length 100 [2023-11-26 12:02:52,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:52,799 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 131 transitions. [2023-11-26 12:02:52,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-26 12:02:52,799 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 131 transitions. [2023-11-26 12:02:52,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-26 12:02:52,802 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:52,802 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:52,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-26 12:02:53,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:02:53,017 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:53,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:53,018 INFO L85 PathProgramCache]: Analyzing trace with hash -662166147, now seen corresponding path program 1 times [2023-11-26 12:02:53,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:02:53,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685528347] [2023-11-26 12:02:53,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:53,019 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:02:53,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:02:53,020 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:02:53,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_246ba937-13a1-437f-a619-1fd76a39d430/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-26 12:02:53,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:53,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 12:02:53,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:54,225 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 255 proven. 21 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-11-26 12:02:54,225 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:02:54,795 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 24 proven. 21 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-26 12:02:54,795 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:02:54,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685528347] [2023-11-26 12:02:54,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685528347] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:02:54,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:02:54,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-11-26 12:02:54,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583338098] [2023-11-26 12:02:54,797 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:02:54,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:02:54,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:02:54,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:02:54,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:02:54,800 INFO L87 Difference]: Start difference. First operand 88 states and 131 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)