./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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 cf8b375ecaf5e7f492500087304bb604d88ab477e5c68263b7ad030500238492 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:11:28,829 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:11:28,901 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 06:11:28,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:11:28,906 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:11:28,941 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:11:28,941 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:11:28,942 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:11:28,942 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:11:28,943 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:11:28,943 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:11:28,944 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:11:28,945 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:11:28,945 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:11:28,946 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:11:28,946 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:11:28,947 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:11:28,947 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:11:28,948 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:11:28,948 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:11:28,949 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:11:28,949 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:11:28,950 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:11:28,950 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:11:28,951 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:11:28,951 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:11:28,951 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:11:28,952 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:11:28,952 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:11:28,952 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:11:28,953 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:11:28,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:11:28,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:11:28,954 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:11:28,954 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:11:28,954 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:11:28,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:11:28,954 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:11:28,955 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:11:28,955 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:11:28,955 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:11:28,955 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:11:28,955 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_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf8b375ecaf5e7f492500087304bb604d88ab477e5c68263b7ad030500238492 [2023-11-29 06:11:29,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:11:29,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:11:29,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:11:29,195 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:11:29,195 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:11:29,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i [2023-11-29 06:11:31,930 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:11:32,133 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:11:32,133 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i [2023-11-29 06:11:32,142 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/data/53c56df34/ad6ca24b2d72494585013dd4c602feff/FLAG8283558f1 [2023-11-29 06:11:32,156 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/data/53c56df34/ad6ca24b2d72494585013dd4c602feff [2023-11-29 06:11:32,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:11:32,160 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:11:32,162 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:11:32,162 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:11:32,166 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:11:32,167 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:11:32" (1/1) ... [2023-11-29 06:11:32,168 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2412a5e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:32, skipping insertion in model container [2023-11-29 06:11:32,168 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:11:32" (1/1) ... [2023-11-29 06:11:32,195 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:11:32,339 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_70fbd41a-ee41-4435-a320-2d0ae5d9853a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i[914,927] [2023-11-29 06:11:32,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:11:32,390 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:11:32,402 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_70fbd41a-ee41-4435-a320-2d0ae5d9853a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i[914,927] [2023-11-29 06:11:32,424 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:11:32,440 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:11:32,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:32 WrapperNode [2023-11-29 06:11:32,441 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:11:32,442 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:11:32,442 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:11:32,442 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:11:32,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:32" (1/1) ... [2023-11-29 06:11:32,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:32" (1/1) ... [2023-11-29 06:11:32,490 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118 [2023-11-29 06:11:32,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:11:32,491 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:11:32,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:11:32,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:11:32,500 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:32" (1/1) ... [2023-11-29 06:11:32,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:32" (1/1) ... [2023-11-29 06:11:32,504 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:32" (1/1) ... [2023-11-29 06:11:32,518 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]. [2023-11-29 06:11:32,518 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:32" (1/1) ... [2023-11-29 06:11:32,518 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:32" (1/1) ... [2023-11-29 06:11:32,525 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:32" (1/1) ... [2023-11-29 06:11:32,528 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:32" (1/1) ... [2023-11-29 06:11:32,530 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:32" (1/1) ... [2023-11-29 06:11:32,532 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:32" (1/1) ... [2023-11-29 06:11:32,535 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:11:32,536 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:11:32,536 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:11:32,536 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:11:32,537 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:32" (1/1) ... [2023-11-29 06:11:32,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:11:32,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:11:32,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:11:32,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:11:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:11:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 06:11:32,606 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 06:11:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:11:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:11:32,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:11:32,687 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:11:32,690 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:11:32,959 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:11:32,999 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:11:32,999 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 06:11:32,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:11:32 BoogieIcfgContainer [2023-11-29 06:11:33,000 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:11:33,002 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:11:33,002 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:11:33,005 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:11:33,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:11:32" (1/3) ... [2023-11-29 06:11:33,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3548167a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:11:33, skipping insertion in model container [2023-11-29 06:11:33,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:32" (2/3) ... [2023-11-29 06:11:33,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3548167a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:11:33, skipping insertion in model container [2023-11-29 06:11:33,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:11:32" (3/3) ... [2023-11-29 06:11:33,008 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-8.i [2023-11-29 06:11:33,027 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:11:33,027 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 06:11:33,067 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:11:33,072 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;@5ceea961, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:11:33,073 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 06:11:33,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 27 states have internal predecessors, (35), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:11:33,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:11:33,091 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:11:33,091 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:11:33,092 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:11:33,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:11:33,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1163524560, now seen corresponding path program 1 times [2023-11-29 06:11:33,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:11:33,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729932463] [2023-11-29 06:11:33,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:11:33,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:11:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:11:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 06:11:33,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 06:11:33,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 06:11:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 06:11:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 06:11:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 06:11:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 06:11:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 06:11:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 06:11:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 06:11:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 06:11:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 06:11:33,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 06:11:33,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-29 06:11:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 06:11:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-29 06:11:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 06:11:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 06:11:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 06:11:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,425 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-29 06:11:33,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:11:33,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729932463] [2023-11-29 06:11:33,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729932463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:11:33,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:11:33,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:11:33,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301985279] [2023-11-29 06:11:33,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:11:33,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:11:33,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:11:33,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:11:33,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:11:33,467 INFO L87 Difference]: Start difference. First operand has 49 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 27 states have internal predecessors, (35), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-29 06:11:33,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:11:33,509 INFO L93 Difference]: Finished difference Result 95 states and 168 transitions. [2023-11-29 06:11:33,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:11:33,512 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 121 [2023-11-29 06:11:33,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:11:33,520 INFO L225 Difference]: With dead ends: 95 [2023-11-29 06:11:33,521 INFO L226 Difference]: Without dead ends: 47 [2023-11-29 06:11:33,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:11:33,529 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 [2023-11-29 06:11:33,530 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] [2023-11-29 06:11:33,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-29 06:11:33,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-29 06:11:33,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:11:33,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 70 transitions. [2023-11-29 06:11:33,579 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 70 transitions. Word has length 121 [2023-11-29 06:11:33,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:11:33,579 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 70 transitions. [2023-11-29 06:11:33,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-29 06:11:33,580 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 70 transitions. [2023-11-29 06:11:33,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:11:33,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:11:33,584 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:11:33,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:11:33,585 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:11:33,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:11:33,585 INFO L85 PathProgramCache]: Analyzing trace with hash -2051560076, now seen corresponding path program 1 times [2023-11-29 06:11:33,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:11:33,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386238911] [2023-11-29 06:11:33,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:11:33,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:11:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:11:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 06:11:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 06:11:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 06:11:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 06:11:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 06:11:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 06:11:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 06:11:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 06:11:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 06:11:33,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 06:11:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 06:11:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 06:11:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 06:11:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-29 06:11:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 06:11:33,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-29 06:11:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 06:11:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 06:11:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 06:11:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:33,939 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-29 06:11:33,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:11:33,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386238911] [2023-11-29 06:11:33,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386238911] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:11:33,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:11:33,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:11:33,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83076545] [2023-11-29 06:11:33,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:11:33,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:11:33,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:11:33,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:11:33,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:11:33,943 INFO L87 Difference]: Start difference. First operand 47 states and 70 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 06:11:34,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:11:34,060 INFO L93 Difference]: Finished difference Result 93 states and 139 transitions. [2023-11-29 06:11:34,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:11:34,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 121 [2023-11-29 06:11:34,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:11:34,063 INFO L225 Difference]: With dead ends: 93 [2023-11-29 06:11:34,063 INFO L226 Difference]: Without dead ends: 47 [2023-11-29 06:11:34,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:11:34,066 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 44 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:11:34,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 64 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:11:34,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-29 06:11:34,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-29 06:11:34,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:11:34,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 69 transitions. [2023-11-29 06:11:34,080 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 69 transitions. Word has length 121 [2023-11-29 06:11:34,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:11:34,082 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 69 transitions. [2023-11-29 06:11:34,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 06:11:34,083 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 69 transitions. [2023-11-29 06:11:34,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:11:34,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:11:34,085 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:11:34,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:11:34,086 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:11:34,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:11:34,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1434060594, now seen corresponding path program 1 times [2023-11-29 06:11:34,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:11:34,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529043766] [2023-11-29 06:11:34,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:11:34,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:11:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:11:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 06:11:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 06:11:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 06:11:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 06:11:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 06:11:34,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 06:11:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 06:11:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 06:11:34,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 06:11:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 06:11:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 06:11:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 06:11:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 06:11:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-29 06:11:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 06:11:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-29 06:11:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 06:11:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 06:11:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 06:11:34,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,447 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 9 proven. 48 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-29 06:11:34,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:11:34,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529043766] [2023-11-29 06:11:34,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529043766] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:11:34,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817803268] [2023-11-29 06:11:34,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:11:34,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:11:34,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:11:34,456 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:11:34,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:11:34,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:34,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:11:34,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:11:34,879 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 217 proven. 48 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2023-11-29 06:11:34,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:11:35,109 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 9 proven. 48 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-29 06:11:35,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817803268] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:11:35,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:11:35,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2023-11-29 06:11:35,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5648981] [2023-11-29 06:11:35,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:11:35,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:11:35,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:11:35,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:11:35,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:11:35,113 INFO L87 Difference]: Start difference. First operand 47 states and 69 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-11-29 06:11:35,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:11:35,297 INFO L93 Difference]: Finished difference Result 101 states and 144 transitions. [2023-11-29 06:11:35,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:11:35,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 121 [2023-11-29 06:11:35,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:11:35,302 INFO L225 Difference]: With dead ends: 101 [2023-11-29 06:11:35,303 INFO L226 Difference]: Without dead ends: 55 [2023-11-29 06:11:35,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 277 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:11:35,305 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 37 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:11:35,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 82 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:11:35,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-29 06:11:35,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2023-11-29 06:11:35,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 28 states have internal predecessors, (31), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:11:35,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 71 transitions. [2023-11-29 06:11:35,320 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 71 transitions. Word has length 121 [2023-11-29 06:11:35,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:11:35,321 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 71 transitions. [2023-11-29 06:11:35,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-11-29 06:11:35,321 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 71 transitions. [2023-11-29 06:11:35,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:11:35,324 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:11:35,324 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:11:35,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:11:35,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:11:35,528 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:11:35,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:11:35,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1434120176, now seen corresponding path program 1 times [2023-11-29 06:11:35,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:11:35,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198462389] [2023-11-29 06:11:35,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:11:35,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:11:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:11:35,590 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:11:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:11:35,677 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:11:35,677 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 06:11:35,678 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 06:11:35,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 06:11:35,683 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-29 06:11:35,687 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:11:35,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:11:35 BoogieIcfgContainer [2023-11-29 06:11:35,758 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:11:35,759 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:11:35,759 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:11:35,759 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:11:35,760 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:11:32" (3/4) ... [2023-11-29 06:11:35,761 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 06:11:35,762 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:11:35,763 INFO L158 Benchmark]: Toolchain (without parser) took 3602.65ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 154.5MB in the beginning and 104.1MB in the end (delta: 50.4MB). Peak memory consumption was 88.9MB. Max. memory is 16.1GB. [2023-11-29 06:11:35,763 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 115.3MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:11:35,764 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.39ms. Allocated memory is still 184.5MB. Free memory was 154.5MB in the beginning and 142.0MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 06:11:35,764 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.48ms. Allocated memory is still 184.5MB. Free memory was 142.0MB in the beginning and 139.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:11:35,765 INFO L158 Benchmark]: Boogie Preprocessor took 44.63ms. Allocated memory is still 184.5MB. Free memory was 139.8MB in the beginning and 136.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 06:11:35,765 INFO L158 Benchmark]: RCFGBuilder took 463.69ms. Allocated memory is still 184.5MB. Free memory was 136.6MB in the beginning and 144.6MB in the end (delta: -8.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 06:11:35,765 INFO L158 Benchmark]: TraceAbstraction took 2756.54ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 143.7MB in the beginning and 105.1MB in the end (delta: 38.6MB). Peak memory consumption was 78.1MB. Max. memory is 16.1GB. [2023-11-29 06:11:35,766 INFO L158 Benchmark]: Witness Printer took 3.69ms. Allocated memory is still 222.3MB. Free memory was 105.1MB in the beginning and 104.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:11:35,768 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 115.3MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.39ms. Allocated memory is still 184.5MB. Free memory was 154.5MB in the beginning and 142.0MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.48ms. Allocated memory is still 184.5MB. Free memory was 142.0MB in the beginning and 139.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.63ms. Allocated memory is still 184.5MB. Free memory was 139.8MB in the beginning and 136.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 463.69ms. Allocated memory is still 184.5MB. Free memory was 136.6MB in the beginning and 144.6MB in the end (delta: -8.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2756.54ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 143.7MB in the beginning and 105.1MB in the end (delta: 38.6MB). Peak memory consumption was 78.1MB. Max. memory is 16.1GB. * Witness Printer took 3.69ms. Allocated memory is still 222.3MB. Free memory was 105.1MB in the beginning and 104.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 97, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] unsigned char var_1_4 = 0; [L24] unsigned char var_1_5 = 0; [L25] unsigned char var_1_6 = 0; [L26] unsigned char var_1_7 = 0; [L27] signed long int var_1_8 = 64; [L28] signed char var_1_11 = 2; [L29] signed char var_1_12 = 32; [L30] signed char var_1_13 = 2; [L31] float var_1_14 = 31.325; [L32] float var_1_15 = 7.4; [L33] float var_1_16 = 7.375; [L34] unsigned short int var_1_17 = 256; [L35] unsigned short int var_1_19 = 24509; [L36] unsigned short int var_1_20 = 32; [L37] unsigned short int var_1_21 = 4; [L38] signed char last_1_var_1_11 = 2; [L101] isInitial = 1 [L102] FCALL initially() [L103] COND TRUE 1 [L104] CALL updateLastVariables() [L94] last_1_var_1_11 = var_1_11 [L104] RET updateLastVariables() [L105] CALL updateVariables() [L61] var_1_4 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L62] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L63] CALL assume_abort_if_not(var_1_4 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L63] RET assume_abort_if_not(var_1_4 <= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L64] var_1_5 = __VERIFIER_nondet_uchar() [L65] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_6=0, var_1_7=0, var_1_8=64] [L65] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_6=0, var_1_7=0, var_1_8=64] [L66] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L66] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L67] var_1_6 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_7=0, var_1_8=64] [L68] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_7=0, var_1_8=64] [L69] CALL assume_abort_if_not(var_1_6 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L69] RET assume_abort_if_not(var_1_6 <= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L70] var_1_7 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_7 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L71] RET assume_abort_if_not(var_1_7 >= 1) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L72] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L72] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L73] var_1_12 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_12 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L74] RET assume_abort_if_not(var_1_12 >= -63) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L75] CALL assume_abort_if_not(var_1_12 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L75] RET assume_abort_if_not(var_1_12 <= 63) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L76] var_1_13 = __VERIFIER_nondet_char() [L77] CALL assume_abort_if_not(var_1_13 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L77] RET assume_abort_if_not(var_1_13 >= -63) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L78] CALL assume_abort_if_not(var_1_13 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L78] RET assume_abort_if_not(var_1_13 <= 63) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L79] var_1_15 = __VERIFIER_nondet_float() [L80] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L80] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L81] var_1_16 = __VERIFIER_nondet_float() [L82] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L82] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L83] var_1_19 = __VERIFIER_nondet_ushort() [L84] CALL assume_abort_if_not(var_1_19 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=32767, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=32767, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L84] RET assume_abort_if_not(var_1_19 >= 16383) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=32767, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L85] CALL assume_abort_if_not(var_1_19 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=32767, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=32767, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L85] RET assume_abort_if_not(var_1_19 <= 32767) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=32767, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L86] var_1_20 = __VERIFIER_nondet_ushort() [L87] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=32767, var_1_1=0, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=32767, var_1_1=0, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L87] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=32767, var_1_1=0, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L88] CALL assume_abort_if_not(var_1_20 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=32767, var_1_1=0, var_1_20=16383, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=32767, var_1_1=0, var_1_20=16383, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L88] RET assume_abort_if_not(var_1_20 <= 16383) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=32767, var_1_1=0, var_1_20=16383, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L89] var_1_21 = __VERIFIER_nondet_ushort() [L90] CALL assume_abort_if_not(var_1_21 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=32767, var_1_1=0, var_1_20=16383, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=32767, var_1_1=0, var_1_20=16383, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L90] RET assume_abort_if_not(var_1_21 >= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=32767, var_1_1=0, var_1_20=16383, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L91] CALL assume_abort_if_not(var_1_21 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=32767, var_1_1=0, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=32767, var_1_1=0, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L91] RET assume_abort_if_not(var_1_21 <= 32767) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=32767, var_1_1=0, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L105] RET updateVariables() [L106] CALL step() [L42] COND FALSE !(((((16) < 0 ) ? -(16) : (16))) < last_1_var_1_11) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_14=1253/40, var_1_17=256, var_1_19=32767, var_1_1=0, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L45] var_1_14 = (var_1_15 - var_1_16) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_17=256, var_1_19=32767, var_1_1=0, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L46] COND TRUE var_1_14 <= ((var_1_15 - var_1_16) * var_1_14) [L47] var_1_17 = ((var_1_19 - var_1_20) + var_1_21) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_17=16384, var_1_19=32767, var_1_1=0, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L51] COND FALSE !(var_1_17 >= (8u * var_1_17)) [L54] var_1_1 = var_1_7 VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_17=16384, var_1_19=32767, var_1_1=1, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L56] COND FALSE !(\read(var_1_5)) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_17=16384, var_1_19=32767, var_1_1=1, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L106] RET step() [L107] CALL, EXPR property() [L97-L98] return (((((var_1_17 >= (8u * var_1_17)) ? (var_1_1 == ((unsigned char) (! (var_1_4 || (var_1_5 || var_1_6))))) : (var_1_1 == ((unsigned char) var_1_7))) && (var_1_5 ? (var_1_8 == ((signed long int) (var_1_17 + var_1_11))) : 1)) && ((((((16) < 0 ) ? -(16) : (16))) < last_1_var_1_11) ? (var_1_11 == ((signed char) (var_1_12 + var_1_13))) : 1)) && (var_1_14 == ((float) (var_1_15 - var_1_16)))) && ((var_1_14 <= ((var_1_15 - var_1_16) * var_1_14)) ? (var_1_17 == ((unsigned short int) ((var_1_19 - var_1_20) + var_1_21))) : (var_1_17 == ((unsigned short int) var_1_20))) ; [L107] RET, EXPR property() [L107] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_17=16384, var_1_19=32767, var_1_1=1, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=-63, var_1_13=-63, var_1_17=16384, var_1_19=32767, var_1_1=1, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 81 mSDsluCounter, 213 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 125 IncrementalHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 172 mSDtfsCounter, 125 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 395 GetRequests, 381 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=3, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 605 NumberOfCodeBlocks, 605 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 600 ConstructedInterpolants, 0 QuantifiedInterpolants, 1660 SizeOfPredicates, 3 NumberOfNonLiveVariables, 276 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 3656/3800 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 [2023-11-29 06:11:35,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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 cf8b375ecaf5e7f492500087304bb604d88ab477e5c68263b7ad030500238492 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:11:37,671 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:11:37,736 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 06:11:37,741 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:11:37,741 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:11:37,767 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:11:37,768 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:11:37,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:11:37,769 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:11:37,769 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:11:37,770 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:11:37,770 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:11:37,771 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:11:37,772 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:11:37,772 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:11:37,773 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:11:37,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:11:37,774 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:11:37,774 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:11:37,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:11:37,775 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:11:37,780 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:11:37,780 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:11:37,780 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 06:11:37,781 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 06:11:37,781 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 06:11:37,781 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:11:37,782 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:11:37,782 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:11:37,782 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:11:37,783 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:11:37,783 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:11:37,783 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:11:37,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:11:37,784 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:11:37,784 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:11:37,784 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:11:37,784 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 06:11:37,785 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 06:11:37,785 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:11:37,785 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:11:37,785 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:11:37,786 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:11:37,786 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:11:37,786 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 06:11:37,786 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_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf8b375ecaf5e7f492500087304bb604d88ab477e5c68263b7ad030500238492 [2023-11-29 06:11:38,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:11:38,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:11:38,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:11:38,100 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:11:38,101 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:11:38,102 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i [2023-11-29 06:11:40,870 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:11:41,050 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:11:41,051 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i [2023-11-29 06:11:41,059 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/data/bd00da432/42d79ac298554620b75005abfd10afc0/FLAGdbbda7900 [2023-11-29 06:11:41,071 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/data/bd00da432/42d79ac298554620b75005abfd10afc0 [2023-11-29 06:11:41,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:11:41,075 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:11:41,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:11:41,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:11:41,080 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:11:41,081 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:11:41" (1/1) ... [2023-11-29 06:11:41,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10b5fc4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:41, skipping insertion in model container [2023-11-29 06:11:41,082 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:11:41" (1/1) ... [2023-11-29 06:11:41,104 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:11:41,234 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_70fbd41a-ee41-4435-a320-2d0ae5d9853a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i[914,927] [2023-11-29 06:11:41,272 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:11:41,288 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:11:41,300 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_70fbd41a-ee41-4435-a320-2d0ae5d9853a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i[914,927] [2023-11-29 06:11:41,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:11:41,338 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:11:41,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:41 WrapperNode [2023-11-29 06:11:41,338 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:11:41,340 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:11:41,340 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:11:41,340 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:11:41,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:41" (1/1) ... [2023-11-29 06:11:41,359 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:41" (1/1) ... [2023-11-29 06:11:41,385 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2023-11-29 06:11:41,385 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:11:41,386 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:11:41,386 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:11:41,387 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:11:41,398 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:41" (1/1) ... [2023-11-29 06:11:41,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:41" (1/1) ... [2023-11-29 06:11:41,402 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:41" (1/1) ... [2023-11-29 06:11:41,415 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]. [2023-11-29 06:11:41,415 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:41" (1/1) ... [2023-11-29 06:11:41,416 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:41" (1/1) ... [2023-11-29 06:11:41,424 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:41" (1/1) ... [2023-11-29 06:11:41,428 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:41" (1/1) ... [2023-11-29 06:11:41,431 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:41" (1/1) ... [2023-11-29 06:11:41,432 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:41" (1/1) ... [2023-11-29 06:11:41,436 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:11:41,437 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:11:41,437 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:11:41,437 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:11:41,438 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:41" (1/1) ... [2023-11-29 06:11:41,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:11:41,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:11:41,465 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:11:41,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:11:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:11:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 06:11:41,508 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 06:11:41,508 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 06:11:41,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:11:41,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:11:41,595 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:11:41,598 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:11:43,261 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:11:43,315 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:11:43,315 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 06:11:43,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:11:43 BoogieIcfgContainer [2023-11-29 06:11:43,316 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:11:43,318 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:11:43,318 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:11:43,321 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:11:43,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:11:41" (1/3) ... [2023-11-29 06:11:43,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@636ba600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:11:43, skipping insertion in model container [2023-11-29 06:11:43,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:41" (2/3) ... [2023-11-29 06:11:43,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@636ba600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:11:43, skipping insertion in model container [2023-11-29 06:11:43,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:11:43" (3/3) ... [2023-11-29 06:11:43,324 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-8.i [2023-11-29 06:11:43,339 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:11:43,339 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 06:11:43,379 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:11:43,384 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;@10540a33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:11:43,384 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 06:11:43,387 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 27 states have internal predecessors, (35), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:11:43,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:11:43,400 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:11:43,401 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:11:43,401 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:11:43,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:11:43,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1163524560, now seen corresponding path program 1 times [2023-11-29 06:11:43,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:11:43,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1024326303] [2023-11-29 06:11:43,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:11:43,419 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 [2023-11-29 06:11:43,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:11:43,422 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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) [2023-11-29 06:11:43,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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 [2023-11-29 06:11:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:43,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 06:11:43,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:11:43,752 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2023-11-29 06:11:43,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:11:43,753 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:11:43,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1024326303] [2023-11-29 06:11:43,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1024326303] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:11:43,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:11:43,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:11:43,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437159617] [2023-11-29 06:11:43,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:11:43,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:11:43,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:11:43,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:11:43,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:11:43,791 INFO L87 Difference]: Start difference. First operand has 49 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 27 states have internal predecessors, (35), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 06:11:44,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:11:44,232 INFO L93 Difference]: Finished difference Result 95 states and 168 transitions. [2023-11-29 06:11:44,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:11:44,244 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 121 [2023-11-29 06:11:44,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:11:44,250 INFO L225 Difference]: With dead ends: 95 [2023-11-29 06:11:44,250 INFO L226 Difference]: Without dead ends: 47 [2023-11-29 06:11:44,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:11:44,256 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:11:44,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:11:44,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-29 06:11:44,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-29 06:11:44,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:11:44,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 70 transitions. [2023-11-29 06:11:44,293 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 70 transitions. Word has length 121 [2023-11-29 06:11:44,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:11:44,293 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 70 transitions. [2023-11-29 06:11:44,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 06:11:44,294 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 70 transitions. [2023-11-29 06:11:44,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:11:44,297 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:11:44,297 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:11:44,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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 [2023-11-29 06:11:44,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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 [2023-11-29 06:11:44,498 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:11:44,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:11:44,499 INFO L85 PathProgramCache]: Analyzing trace with hash -2051560076, now seen corresponding path program 1 times [2023-11-29 06:11:44,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:11:44,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178809381] [2023-11-29 06:11:44,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:11:44,501 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 [2023-11-29 06:11:44,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:11:44,502 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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) [2023-11-29 06:11:44,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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 [2023-11-29 06:11:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:44,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:11:44,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:11:45,121 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-29 06:11:45,121 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:11:45,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:11:45,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178809381] [2023-11-29 06:11:45,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1178809381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:11:45,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:11:45,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:11:45,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523827577] [2023-11-29 06:11:45,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:11:45,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:11:45,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:11:45,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:11:45,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:11:45,128 INFO L87 Difference]: Start difference. First operand 47 states and 70 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 06:11:45,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:11:45,881 INFO L93 Difference]: Finished difference Result 93 states and 139 transitions. [2023-11-29 06:11:45,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:11:45,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 121 [2023-11-29 06:11:45,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:11:45,894 INFO L225 Difference]: With dead ends: 93 [2023-11-29 06:11:45,894 INFO L226 Difference]: Without dead ends: 47 [2023-11-29 06:11:45,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:11:45,897 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 41 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:11:45,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 64 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:11:45,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-29 06:11:45,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-29 06:11:45,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:11:45,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 69 transitions. [2023-11-29 06:11:45,913 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 69 transitions. Word has length 121 [2023-11-29 06:11:45,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:11:45,915 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 69 transitions. [2023-11-29 06:11:45,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 06:11:45,915 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 69 transitions. [2023-11-29 06:11:45,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:11:45,918 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:11:45,918 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:11:45,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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)] Forceful destruction successful, exit code 0 [2023-11-29 06:11:46,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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 [2023-11-29 06:11:46,120 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:11:46,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:11:46,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1434060594, now seen corresponding path program 1 times [2023-11-29 06:11:46,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:11:46,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977835909] [2023-11-29 06:11:46,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:11:46,122 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 [2023-11-29 06:11:46,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:11:46,123 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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) [2023-11-29 06:11:46,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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 [2023-11-29 06:11:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:46,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:11:46,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:11:46,623 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 217 proven. 48 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2023-11-29 06:11:46,624 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:11:46,861 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 9 proven. 48 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-29 06:11:46,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:11:46,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977835909] [2023-11-29 06:11:46,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977835909] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:11:46,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:11:46,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-29 06:11:46,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248496149] [2023-11-29 06:11:46,863 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:11:46,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:11:46,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:11:46,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:11:46,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:11:46,866 INFO L87 Difference]: Start difference. First operand 47 states and 69 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-11-29 06:11:47,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:11:47,613 INFO L93 Difference]: Finished difference Result 101 states and 144 transitions. [2023-11-29 06:11:47,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:11:47,623 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 121 [2023-11-29 06:11:47,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:11:47,625 INFO L225 Difference]: With dead ends: 101 [2023-11-29 06:11:47,625 INFO L226 Difference]: Without dead ends: 55 [2023-11-29 06:11:47,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 234 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:11:47,627 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 28 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:11:47,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 81 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:11:47,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-29 06:11:47,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2023-11-29 06:11:47,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 28 states have internal predecessors, (31), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:11:47,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 71 transitions. [2023-11-29 06:11:47,642 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 71 transitions. Word has length 121 [2023-11-29 06:11:47,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:11:47,643 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 71 transitions. [2023-11-29 06:11:47,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-11-29 06:11:47,643 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 71 transitions. [2023-11-29 06:11:47,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:11:47,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:11:47,646 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:11:47,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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)] Ended with exit code 0 [2023-11-29 06:11:47,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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 [2023-11-29 06:11:47,848 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:11:47,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:11:47,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1434120176, now seen corresponding path program 1 times [2023-11-29 06:11:47,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:11:47,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [235347560] [2023-11-29 06:11:47,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:11:47,850 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 [2023-11-29 06:11:47,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:11:47,851 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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) [2023-11-29 06:11:47,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/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 (5)] Waiting until timeout for monitored process [2023-11-29 06:11:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:48,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 06:11:48,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:12:17,187 WARN L293 SmtUtils]: Spent 5.76s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:12:41,644 WARN L293 SmtUtils]: Spent 6.94s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:14:01,164 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 304 proven. 189 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-11-29 06:14:01,164 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:18:30,026 WARN L293 SmtUtils]: Spent 16.60s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:25:20,932 WARN L293 SmtUtils]: Spent 12.69s on a formula simplification that was a NOOP. DAG size: 111 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:26:35,502 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:26:35,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [235347560] [2023-11-29 06:26:35,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [235347560] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:26:35,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1319639825] [2023-11-29 06:26:35,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:35,503 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 06:26:35,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 06:26:35,504 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 06:26:35,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70fbd41a-ee41-4435-a320-2d0ae5d9853a/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process