./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.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_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya --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 fbb94f92326360d1b49e2127744a54ce104befba5614aa9d887afe6ba1b1edd0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:38:01,461 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:38:01,528 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-28 23:38:01,534 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:38:01,534 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:38:01,560 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:38:01,560 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:38:01,561 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:38:01,562 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:38:01,562 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:38:01,563 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:38:01,563 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:38:01,564 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:38:01,564 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:38:01,565 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:38:01,565 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:38:01,566 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:38:01,566 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:38:01,567 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:38:01,567 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:38:01,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:38:01,572 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:38:01,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:38:01,573 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:38:01,573 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:38:01,574 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:38:01,574 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:38:01,574 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:38:01,575 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:38:01,575 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 23:38:01,576 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:38:01,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:38:01,576 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:38:01,576 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:38:01,577 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 23:38:01,577 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:38:01,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 23:38:01,577 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:38:01,577 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:38:01,578 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 23:38:01,578 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:38:01,578 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:38:01,578 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_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbb94f92326360d1b49e2127744a54ce104befba5614aa9d887afe6ba1b1edd0 [2023-11-28 23:38:01,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:38:01,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:38:01,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:38:01,827 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:38:01,827 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:38:01,828 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i [2023-11-28 23:38:04,572 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:38:04,787 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:38:04,787 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i [2023-11-28 23:38:04,795 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/data/708e1ef0f/95547396b8794788a4db450d36329cec/FLAG23327fed2 [2023-11-28 23:38:04,810 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/data/708e1ef0f/95547396b8794788a4db450d36329cec [2023-11-28 23:38:04,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:38:04,813 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:38:04,814 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:38:04,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:38:04,818 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:38:04,819 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:38:04" (1/1) ... [2023-11-28 23:38:04,820 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3756b915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:04, skipping insertion in model container [2023-11-28 23:38:04,820 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:38:04" (1/1) ... [2023-11-28 23:38:04,849 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:38:04,979 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_279b3677-b888-4113-9b17-6db78dc2877b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i[916,929] [2023-11-28 23:38:05,031 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:38:05,042 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:38:05,054 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_279b3677-b888-4113-9b17-6db78dc2877b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i[916,929] [2023-11-28 23:38:05,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:38:05,093 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:38:05,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:05 WrapperNode [2023-11-28 23:38:05,094 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:38:05,095 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:38:05,095 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:38:05,095 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:38:05,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:05" (1/1) ... [2023-11-28 23:38:05,113 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:05" (1/1) ... [2023-11-28 23:38:05,150 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117 [2023-11-28 23:38:05,150 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:38:05,151 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:38:05,151 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:38:05,151 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:38:05,162 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:05" (1/1) ... [2023-11-28 23:38:05,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:05" (1/1) ... [2023-11-28 23:38:05,166 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:05" (1/1) ... [2023-11-28 23:38:05,184 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]. [2023-11-28 23:38:05,184 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:05" (1/1) ... [2023-11-28 23:38:05,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:05" (1/1) ... [2023-11-28 23:38:05,197 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:05" (1/1) ... [2023-11-28 23:38:05,201 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:05" (1/1) ... [2023-11-28 23:38:05,204 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:05" (1/1) ... [2023-11-28 23:38:05,207 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:05" (1/1) ... [2023-11-28 23:38:05,213 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:38:05,214 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:38:05,214 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:38:05,215 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:38:05,215 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:05" (1/1) ... [2023-11-28 23:38:05,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:38:05,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:38:05,250 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:38:05,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:38:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:38:05,283 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-28 23:38:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-28 23:38:05,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 23:38:05,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:38:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:38:05,353 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:38:05,354 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:38:05,608 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:38:05,640 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:38:05,640 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 23:38:05,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:38:05 BoogieIcfgContainer [2023-11-28 23:38:05,641 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:38:05,644 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:38:05,644 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:38:05,647 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:38:05,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:38:04" (1/3) ... [2023-11-28 23:38:05,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3abb31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:38:05, skipping insertion in model container [2023-11-28 23:38:05,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:05" (2/3) ... [2023-11-28 23:38:05,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3abb31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:38:05, skipping insertion in model container [2023-11-28 23:38:05,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:38:05" (3/3) ... [2023-11-28 23:38:05,649 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-49.i [2023-11-28 23:38:05,663 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:38:05,663 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 23:38:05,705 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:38:05,711 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;@3a98212d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:38:05,712 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 23:38:05,715 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 30 states have internal predecessors, (43), 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) [2023-11-28 23:38:05,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-28 23:38:05,726 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:05,726 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] [2023-11-28 23:38:05,727 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:38:05,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:05,731 INFO L85 PathProgramCache]: Analyzing trace with hash -187152588, now seen corresponding path program 1 times [2023-11-28 23:38:05,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:05,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383772232] [2023-11-28 23:38:05,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:05,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:05,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:38:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:05,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-28 23:38:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:05,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-28 23:38:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:05,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-28 23:38:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:05,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-28 23:38:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:05,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 23:38:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:05,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 23:38:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:05,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-28 23:38:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-28 23:38:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-28 23:38:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 23:38:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 23:38:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-28 23:38:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 23:38:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 23:38:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:38:06,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,048 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-28 23:38:06,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:06,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383772232] [2023-11-28 23:38:06,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383772232] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:06,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:38:06,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:38:06,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731708006] [2023-11-28 23:38:06,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:06,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 23:38:06,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:06,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 23:38:06,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:38:06,090 INFO L87 Difference]: Start difference. First operand has 48 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 30 states have internal predecessors, (43), 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 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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) [2023-11-28 23:38:06,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:06,127 INFO L93 Difference]: Finished difference Result 93 states and 164 transitions. [2023-11-28 23:38:06,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 23:38:06,130 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 99 [2023-11-28 23:38:06,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:06,138 INFO L225 Difference]: With dead ends: 93 [2023-11-28 23:38:06,139 INFO L226 Difference]: Without dead ends: 46 [2023-11-28 23:38:06,142 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 [2023-11-28 23:38:06,146 INFO L413 NwaCegarLoop]: 67 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, 67 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 [2023-11-28 23:38:06,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 23:38:06,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-28 23:38:06,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-28 23:38:06,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 28 states have internal predecessors, (38), 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) [2023-11-28 23:38:06,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 70 transitions. [2023-11-28 23:38:06,191 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 70 transitions. Word has length 99 [2023-11-28 23:38:06,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:06,192 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 70 transitions. [2023-11-28 23:38:06,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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) [2023-11-28 23:38:06,193 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 70 transitions. [2023-11-28 23:38:06,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-28 23:38:06,197 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:06,198 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] [2023-11-28 23:38:06,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 23:38:06,198 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:38:06,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:06,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1259395276, now seen corresponding path program 1 times [2023-11-28 23:38:06,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:06,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001192413] [2023-11-28 23:38:06,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:06,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 23:38:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-28 23:38:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-28 23:38:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-28 23:38:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-28 23:38:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 23:38:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 23:38:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-28 23:38:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-28 23:38:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-28 23:38:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 23:38:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 23:38:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-28 23:38:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 23:38:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 23:38:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 23:38:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:06,611 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-28 23:38:06,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:06,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001192413] [2023-11-28 23:38:06,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001192413] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:06,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:38:06,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:38:06,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721865652] [2023-11-28 23:38:06,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:06,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 23:38:06,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:06,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 23:38:06,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:38:06,616 INFO L87 Difference]: Start difference. First operand 46 states and 70 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-28 23:38:06,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:06,804 INFO L93 Difference]: Finished difference Result 99 states and 146 transitions. [2023-11-28 23:38:06,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:38:06,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2023-11-28 23:38:06,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:06,807 INFO L225 Difference]: With dead ends: 99 [2023-11-28 23:38:06,807 INFO L226 Difference]: Without dead ends: 54 [2023-11-28 23:38:06,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:38:06,809 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 53 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:06,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 104 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:38:06,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-28 23:38:06,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2023-11-28 23:38:06,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-28 23:38:06,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 72 transitions. [2023-11-28 23:38:06,827 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 72 transitions. Word has length 99 [2023-11-28 23:38:06,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:06,828 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 72 transitions. [2023-11-28 23:38:06,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-28 23:38:06,828 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 72 transitions. [2023-11-28 23:38:06,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-28 23:38:06,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:06,830 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] [2023-11-28 23:38:06,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 23:38:06,831 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:38:06,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:06,831 INFO L85 PathProgramCache]: Analyzing trace with hash 435347964, now seen corresponding path program 1 times [2023-11-28 23:38:06,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:06,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981833989] [2023-11-28 23:38:06,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:06,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:38:06,889 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:38:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:38:06,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:38:06,968 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-28 23:38:06,970 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-28 23:38:06,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-28 23:38:06,974 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-28 23:38:06,978 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 23:38:07,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-28 23:38:07,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated [2023-11-28 23:38:07,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:38:07 BoogieIcfgContainer [2023-11-28 23:38:07,063 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 23:38:07,063 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 23:38:07,064 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 23:38:07,064 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 23:38:07,064 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:38:05" (3/4) ... [2023-11-28 23:38:07,066 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-28 23:38:07,067 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 23:38:07,068 INFO L158 Benchmark]: Toolchain (without parser) took 2254.61ms. Allocated memory is still 163.6MB. Free memory was 132.7MB in the beginning and 129.9MB in the end (delta: 2.8MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-11-28 23:38:07,068 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 163.6MB. Free memory is still 130.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:38:07,069 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.52ms. Allocated memory is still 163.6MB. Free memory was 132.7MB in the beginning and 119.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-28 23:38:07,069 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.43ms. Allocated memory is still 163.6MB. Free memory was 118.9MB in the beginning and 115.4MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 23:38:07,070 INFO L158 Benchmark]: Boogie Preprocessor took 62.52ms. Allocated memory is still 163.6MB. Free memory was 115.4MB in the beginning and 107.1MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-28 23:38:07,070 INFO L158 Benchmark]: RCFGBuilder took 426.89ms. Allocated memory is still 163.6MB. Free memory was 107.1MB in the beginning and 85.4MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-28 23:38:07,071 INFO L158 Benchmark]: TraceAbstraction took 1419.33ms. Allocated memory is still 163.6MB. Free memory was 84.7MB in the beginning and 129.9MB in the end (delta: -45.2MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2023-11-28 23:38:07,071 INFO L158 Benchmark]: Witness Printer took 3.66ms. Allocated memory is still 163.6MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:38:07,074 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 163.6MB. Free memory is still 130.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.52ms. Allocated memory is still 163.6MB. Free memory was 132.7MB in the beginning and 119.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.43ms. Allocated memory is still 163.6MB. Free memory was 118.9MB in the beginning and 115.4MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.52ms. Allocated memory is still 163.6MB. Free memory was 115.4MB in the beginning and 107.1MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 426.89ms. Allocated memory is still 163.6MB. Free memory was 107.1MB in the beginning and 85.4MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1419.33ms. Allocated memory is still 163.6MB. Free memory was 84.7MB in the beginning and 129.9MB in the end (delta: -45.2MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. * Witness Printer took 3.66ms. Allocated memory is still 163.6MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 93. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 4; [L23] signed long int var_1_2 = 1000000000; [L24] signed long int var_1_3 = 1000; [L25] unsigned short int var_1_4 = 256; [L26] unsigned short int var_1_5 = 4; [L27] unsigned short int var_1_6 = 10; [L28] signed short int var_1_8 = 128; [L29] signed short int var_1_9 = -2; [L30] unsigned char var_1_10 = 0; [L31] unsigned char var_1_11 = 0; [L32] unsigned char var_1_12 = 0; [L33] unsigned char var_1_13 = 1; [L97] isInitial = 1 [L98] FCALL initially() [L99] COND TRUE 1 [L100] FCALL updateLastVariables() [L101] CALL updateVariables() [L65] var_1_2 = __VERIFIER_nondet_long() [L66] CALL assume_abort_if_not(var_1_2 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=1000, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=1000, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L66] RET assume_abort_if_not(var_1_2 >= -2147483648) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=1000, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L67] CALL assume_abort_if_not(var_1_2 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=1000, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=1000, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L67] RET assume_abort_if_not(var_1_2 <= 2147483647) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=1000, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L68] var_1_3 = __VERIFIER_nondet_long() [L69] CALL assume_abort_if_not(var_1_3 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L69] RET assume_abort_if_not(var_1_3 >= -2147483648) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L70] CALL assume_abort_if_not(var_1_3 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L70] RET assume_abort_if_not(var_1_3 <= 2147483647) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L71] var_1_4 = __VERIFIER_nondet_ushort() [L72] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L72] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L73] CALL assume_abort_if_not(var_1_4 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L73] RET assume_abort_if_not(var_1_4 <= 65534) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=4, var_1_6=10, var_1_8=128, var_1_9=-2] [L74] var_1_5 = __VERIFIER_nondet_ushort() [L75] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_6=10, var_1_8=128, var_1_9=-2] [L75] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_6=10, var_1_8=128, var_1_9=-2] [L76] CALL assume_abort_if_not(var_1_5 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_8=128, var_1_9=-2] [L76] RET assume_abort_if_not(var_1_5 <= 65534) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_8=128, var_1_9=-2] [L77] var_1_6 = __VERIFIER_nondet_ushort() [L78] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_8=128, var_1_9=-2] [L78] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_8=128, var_1_9=-2] [L79] CALL assume_abort_if_not(var_1_6 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-2] [L79] RET assume_abort_if_not(var_1_6 <= 65534) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-2] [L80] var_1_9 = __VERIFIER_nondet_short() [L81] CALL assume_abort_if_not(var_1_9 >= -32766) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-32766] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-32766] [L81] RET assume_abort_if_not(var_1_9 >= -32766) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-32766] [L82] CALL assume_abort_if_not(var_1_9 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-32766] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-32766] [L82] RET assume_abort_if_not(var_1_9 <= 32766) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-32766] [L83] var_1_11 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-32766] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-32766] [L84] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-32766] [L85] CALL assume_abort_if_not(var_1_11 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-32766] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-32766] [L85] RET assume_abort_if_not(var_1_11 <= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-32766] [L86] var_1_12 = __VERIFIER_nondet_uchar() [L87] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-32766] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-32766] [L87] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-32766] [L88] CALL assume_abort_if_not(var_1_12 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-32766] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-32766] [L88] RET assume_abort_if_not(var_1_12 <= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=128, var_1_9=-32766] [L101] RET updateVariables() [L102] CALL step() [L37] var_1_8 = ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=32766, var_1_9=-32766] [L38] EXPR 50 >> var_1_4 VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=32766, var_1_9=-32766] [L38] COND TRUE (50 >> var_1_4) <= var_1_8 [L39] var_1_10 = ((! (! var_1_11)) || var_1_12) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=32766, var_1_9=-32766] [L43] COND TRUE ! var_1_12 VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=32766, var_1_9=-32766] [L44] COND TRUE var_1_4 >= ((((var_1_6) < (var_1_8)) ? (var_1_6) : (var_1_8))) [L45] var_1_13 = (var_1_10 && var_1_11) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_1=4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=32766, var_1_9=-32766] [L50] COND FALSE !(var_1_2 >= 64.5f) [L61] var_1_1 = 50 VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_1=50, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=32766, var_1_9=-32766] [L102] RET step() [L103] CALL, EXPR property() [L93] EXPR (((var_1_2 >= 64.5f) ? ((var_1_2 >= var_1_3) ? (var_1_1 == ((unsigned short int) (((((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) < 0 ) ? -((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) : ((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))))))) : (var_1_13 ? (var_1_1 == ((unsigned short int) var_1_5)) : (var_1_1 == ((unsigned short int) var_1_6)))) : (var_1_1 == ((unsigned short int) 50))) && (var_1_8 == ((signed short int) ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9)))))) && (((50 >> var_1_4) <= var_1_8) ? (var_1_10 == ((unsigned char) ((! (! var_1_11)) || var_1_12))) : (var_1_10 == ((unsigned char) (! var_1_11)))) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_1=50, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=32766, var_1_9=-32766] [L93-L94] return ((((var_1_2 >= 64.5f) ? ((var_1_2 >= var_1_3) ? (var_1_1 == ((unsigned short int) (((((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) < 0 ) ? -((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) : ((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))))))) : (var_1_13 ? (var_1_1 == ((unsigned short int) var_1_5)) : (var_1_1 == ((unsigned short int) var_1_6)))) : (var_1_1 == ((unsigned short int) 50))) && (var_1_8 == ((signed short int) ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9)))))) && (((50 >> var_1_4) <= var_1_8) ? (var_1_10 == ((unsigned char) ((! (! var_1_11)) || var_1_12))) : (var_1_10 == ((unsigned char) (! var_1_11))))) && ((! var_1_12) ? ((var_1_4 >= ((((var_1_6) < (var_1_8)) ? (var_1_6) : (var_1_8)))) ? (var_1_13 == ((unsigned char) (var_1_10 && var_1_11))) : (var_1_13 == ((unsigned char) var_1_11))) : 1) ; [L103] RET, EXPR property() [L103] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_1=50, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=32766, var_1_9=-32766] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_1=50, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=32766, var_1_9=-32766] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 171 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 113 mSDtfsCounter, 105 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=2, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 298 NumberOfCodeBlocks, 298 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 228 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 [2023-11-28 23:38:07,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/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_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya --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 fbb94f92326360d1b49e2127744a54ce104befba5614aa9d887afe6ba1b1edd0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:38:09,043 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:38:09,110 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-28 23:38:09,124 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:38:09,125 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:38:09,152 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:38:09,153 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:38:09,153 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:38:09,154 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:38:09,154 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:38:09,155 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:38:09,155 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:38:09,156 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:38:09,157 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:38:09,157 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:38:09,158 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:38:09,158 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:38:09,159 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:38:09,159 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:38:09,160 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:38:09,160 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:38:09,161 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:38:09,161 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:38:09,162 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 23:38:09,162 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-28 23:38:09,163 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-28 23:38:09,163 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:38:09,163 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:38:09,164 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:38:09,164 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:38:09,164 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:38:09,165 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 23:38:09,165 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:38:09,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:38:09,166 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:38:09,166 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:38:09,166 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 23:38:09,166 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-28 23:38:09,167 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-28 23:38:09,167 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:38:09,167 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:38:09,167 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 23:38:09,168 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:38:09,168 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:38:09,168 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-28 23:38:09,168 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_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbb94f92326360d1b49e2127744a54ce104befba5614aa9d887afe6ba1b1edd0 [2023-11-28 23:38:09,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:38:09,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:38:09,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:38:09,482 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:38:09,483 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:38:09,484 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i [2023-11-28 23:38:12,302 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:38:12,527 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:38:12,528 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i [2023-11-28 23:38:12,538 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/data/cd35201be/781149dde892424e8c13e4a3fc8bf145/FLAGa9775639e [2023-11-28 23:38:12,553 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/data/cd35201be/781149dde892424e8c13e4a3fc8bf145 [2023-11-28 23:38:12,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:38:12,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:38:12,559 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:38:12,559 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:38:12,564 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:38:12,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:38:12" (1/1) ... [2023-11-28 23:38:12,566 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fb7da3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:12, skipping insertion in model container [2023-11-28 23:38:12,567 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:38:12" (1/1) ... [2023-11-28 23:38:12,596 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:38:12,745 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_279b3677-b888-4113-9b17-6db78dc2877b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i[916,929] [2023-11-28 23:38:12,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:38:12,806 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:38:12,819 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_279b3677-b888-4113-9b17-6db78dc2877b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-49.i[916,929] [2023-11-28 23:38:12,844 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:38:12,863 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:38:12,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:12 WrapperNode [2023-11-28 23:38:12,863 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:38:12,864 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:38:12,864 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:38:12,865 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:38:12,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:12" (1/1) ... [2023-11-28 23:38:12,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:12" (1/1) ... [2023-11-28 23:38:12,909 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2023-11-28 23:38:12,909 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:38:12,910 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:38:12,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:38:12,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:38:12,922 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:12" (1/1) ... [2023-11-28 23:38:12,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:12" (1/1) ... [2023-11-28 23:38:12,926 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:12" (1/1) ... [2023-11-28 23:38:12,939 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]. [2023-11-28 23:38:12,940 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:12" (1/1) ... [2023-11-28 23:38:12,940 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:12" (1/1) ... [2023-11-28 23:38:12,949 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:12" (1/1) ... [2023-11-28 23:38:12,960 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:12" (1/1) ... [2023-11-28 23:38:12,962 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:12" (1/1) ... [2023-11-28 23:38:12,964 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:12" (1/1) ... [2023-11-28 23:38:12,968 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:38:12,969 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:38:12,969 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:38:12,969 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:38:12,970 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:12" (1/1) ... [2023-11-28 23:38:12,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:38:12,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:38:13,001 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:38:13,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:38:13,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:38:13,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-28 23:38:13,031 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-28 23:38:13,031 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-28 23:38:13,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:38:13,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:38:13,105 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:38:13,106 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:38:13,821 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:38:13,869 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:38:13,869 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 23:38:13,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:38:13 BoogieIcfgContainer [2023-11-28 23:38:13,869 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:38:13,872 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:38:13,872 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:38:13,874 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:38:13,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:38:12" (1/3) ... [2023-11-28 23:38:13,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58987142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:38:13, skipping insertion in model container [2023-11-28 23:38:13,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:12" (2/3) ... [2023-11-28 23:38:13,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58987142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:38:13, skipping insertion in model container [2023-11-28 23:38:13,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:38:13" (3/3) ... [2023-11-28 23:38:13,877 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-49.i [2023-11-28 23:38:13,892 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:38:13,892 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 23:38:13,931 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:38:13,937 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;@5016185d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:38:13,937 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 23:38:13,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 25 states have internal predecessors, (35), 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) [2023-11-28 23:38:13,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-28 23:38:13,963 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:13,963 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] [2023-11-28 23:38:13,964 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:38:13,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:13,969 INFO L85 PathProgramCache]: Analyzing trace with hash 297792991, now seen corresponding path program 1 times [2023-11-28 23:38:13,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:38:13,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106178346] [2023-11-28 23:38:13,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:13,982 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 [2023-11-28 23:38:13,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:38:13,983 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:38:13,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:38:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:14,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-28 23:38:14,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:38:14,182 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2023-11-28 23:38:14,182 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:38:14,183 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:38:14,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106178346] [2023-11-28 23:38:14,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106178346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:14,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:38:14,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:38:14,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401972562] [2023-11-28 23:38:14,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:14,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 23:38:14,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:38:14,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 23:38:14,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:38:14,221 INFO L87 Difference]: Start difference. First operand has 43 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 25 states have internal predecessors, (35), 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 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-28 23:38:14,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:14,379 INFO L93 Difference]: Finished difference Result 83 states and 148 transitions. [2023-11-28 23:38:14,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 23:38:14,387 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 96 [2023-11-28 23:38:14,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:14,393 INFO L225 Difference]: With dead ends: 83 [2023-11-28 23:38:14,393 INFO L226 Difference]: Without dead ends: 41 [2023-11-28 23:38:14,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:38:14,399 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:14,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:38:14,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-28 23:38:14,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-28 23:38:14,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 23 states have internal predecessors, (30), 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) [2023-11-28 23:38:14,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 62 transitions. [2023-11-28 23:38:14,432 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 62 transitions. Word has length 96 [2023-11-28 23:38:14,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:14,432 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 62 transitions. [2023-11-28 23:38:14,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-28 23:38:14,433 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 62 transitions. [2023-11-28 23:38:14,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-28 23:38:14,436 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:14,436 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] [2023-11-28 23:38:14,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-28 23:38:14,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:38:14,637 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:38:14,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:14,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1005251105, now seen corresponding path program 1 times [2023-11-28 23:38:14,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:38:14,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882506635] [2023-11-28 23:38:14,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:14,639 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 [2023-11-28 23:38:14,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:38:14,641 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:38:14,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:38:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:14,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 23:38:14,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:38:14,869 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-28 23:38:14,869 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:38:14,870 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:38:14,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882506635] [2023-11-28 23:38:14,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [882506635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:14,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:38:14,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:38:14,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293351648] [2023-11-28 23:38:14,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:14,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 23:38:14,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:38:14,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 23:38:14,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:38:14,874 INFO L87 Difference]: Start difference. First operand 41 states and 62 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-28 23:38:15,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:15,230 INFO L93 Difference]: Finished difference Result 89 states and 130 transitions. [2023-11-28 23:38:15,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:38:15,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 96 [2023-11-28 23:38:15,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:15,238 INFO L225 Difference]: With dead ends: 89 [2023-11-28 23:38:15,238 INFO L226 Difference]: Without dead ends: 49 [2023-11-28 23:38:15,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:38:15,241 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 49 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:15,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 81 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 23:38:15,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-28 23:38:15,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2023-11-28 23:38:15,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-28 23:38:15,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2023-11-28 23:38:15,256 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 96 [2023-11-28 23:38:15,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:15,256 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2023-11-28 23:38:15,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-28 23:38:15,257 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2023-11-28 23:38:15,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-28 23:38:15,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:15,259 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] [2023-11-28 23:38:15,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-28 23:38:15,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:38:15,464 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:38:15,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:15,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1349302169, now seen corresponding path program 1 times [2023-11-28 23:38:15,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:38:15,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944345897] [2023-11-28 23:38:15,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:15,465 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 [2023-11-28 23:38:15,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:38:15,467 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:38:15,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279b3677-b888-4113-9b17-6db78dc2877b/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:38:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:15,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-28 23:38:15,611 INFO L285 TraceCheckSpWp]: Computing forward predicates...