./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-3.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_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7653fcc22bc6223490ab137d2e71462c760555325edac4f323356ac25b70c1e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:49:30,353 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:49:30,424 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:49:30,430 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:49:30,430 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:49:30,456 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:49:30,457 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:49:30,458 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:49:30,458 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:49:30,459 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:49:30,460 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:49:30,460 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:49:30,461 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:49:30,462 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:49:30,462 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:49:30,463 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:49:30,464 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:49:30,464 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:49:30,465 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:49:30,465 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:49:30,466 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:49:30,467 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:49:30,467 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:49:30,468 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:49:30,468 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:49:30,469 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:49:30,469 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:49:30,469 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:49:30,470 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:49:30,470 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:49:30,471 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:49:30,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:49:30,472 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:49:30,472 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:49:30,473 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:49:30,473 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:49:30,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:49:30,474 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:49:30,474 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:49:30,475 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:49:30,475 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:49:30,476 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:49:30,476 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_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7653fcc22bc6223490ab137d2e71462c760555325edac4f323356ac25b70c1e [2023-11-26 11:49:30,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:49:30,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:49:30,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:49:30,774 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:49:30,774 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:49:30,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-3.i [2023-11-26 11:49:33,894 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:49:34,125 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:49:34,126 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-3.i [2023-11-26 11:49:34,136 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/data/e06d977eb/a4376ee4aa4546fb8f3af75e2a0814ea/FLAG718717046 [2023-11-26 11:49:34,476 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/data/e06d977eb/a4376ee4aa4546fb8f3af75e2a0814ea [2023-11-26 11:49:34,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:49:34,480 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:49:34,482 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:49:34,482 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:49:34,489 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:49:34,490 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:49:34" (1/1) ... [2023-11-26 11:49:34,491 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71f0e2e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:34, skipping insertion in model container [2023-11-26 11:49:34,492 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:49:34" (1/1) ... [2023-11-26 11:49:34,524 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:49:34,683 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_b0e88279-b1d8-4db3-8d6e-965b39ac9760/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-3.i[916,929] [2023-11-26 11:49:34,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:49:34,762 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:49:34,784 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_b0e88279-b1d8-4db3-8d6e-965b39ac9760/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-3.i[916,929] [2023-11-26 11:49:34,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:49:34,838 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:49:34,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:34 WrapperNode [2023-11-26 11:49:34,839 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:49:34,840 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:49:34,840 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:49:34,841 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:49:34,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:34" (1/1) ... [2023-11-26 11:49:34,859 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:34" (1/1) ... [2023-11-26 11:49:34,894 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2023-11-26 11:49:34,904 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:49:34,905 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:49:34,905 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:49:34,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:49:34,919 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:34" (1/1) ... [2023-11-26 11:49:34,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:34" (1/1) ... [2023-11-26 11:49:34,923 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:34" (1/1) ... [2023-11-26 11:49:34,941 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:49:34,942 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:34" (1/1) ... [2023-11-26 11:49:34,942 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:34" (1/1) ... [2023-11-26 11:49:34,951 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:34" (1/1) ... [2023-11-26 11:49:34,956 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:34" (1/1) ... [2023-11-26 11:49:34,958 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:34" (1/1) ... [2023-11-26 11:49:34,960 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:34" (1/1) ... [2023-11-26 11:49:34,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:49:34,964 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:49:34,965 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:49:34,965 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:49:34,966 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:34" (1/1) ... [2023-11-26 11:49:34,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:49:35,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:49:35,038 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:49:35,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:49:35,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:49:35,095 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:49:35,097 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:49:35,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:49:35,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:49:35,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:49:35,235 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:49:35,237 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:49:35,589 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:49:35,638 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:49:35,639 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:49:35,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:49:35 BoogieIcfgContainer [2023-11-26 11:49:35,639 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:49:35,642 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:49:35,642 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:49:35,646 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:49:35,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:49:34" (1/3) ... [2023-11-26 11:49:35,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba2b67c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:49:35, skipping insertion in model container [2023-11-26 11:49:35,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:34" (2/3) ... [2023-11-26 11:49:35,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba2b67c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:49:35, skipping insertion in model container [2023-11-26 11:49:35,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:49:35" (3/3) ... [2023-11-26 11:49:35,650 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-3.i [2023-11-26 11:49:35,673 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:49:35,673 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:49:35,726 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:49:35,734 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;@1fb706a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:49:35,734 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:49:35,739 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 28 states have internal predecessors, (38), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 11:49:35,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-26 11:49:35,753 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:35,754 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:35,754 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:35,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:35,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1892712653, now seen corresponding path program 1 times [2023-11-26 11:49:35,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:35,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843611766] [2023-11-26 11:49:35,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:35,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:35,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:49:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:49:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 11:49:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-26 11:49:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 11:49:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 11:49:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-26 11:49:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-26 11:49:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-26 11:49:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-26 11:49:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-26 11:49:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-26 11:49:36,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-26 11:49:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-26 11:49:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-26 11:49:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,269 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-26 11:49:36,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:36,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843611766] [2023-11-26 11:49:36,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843611766] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:36,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:36,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:49:36,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811415025] [2023-11-26 11:49:36,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:36,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:49:36,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:36,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:49:36,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:49:36,353 INFO L87 Difference]: Start difference. First operand has 46 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 28 states have internal predecessors, (38), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-26 11:49:36,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:36,395 INFO L93 Difference]: Finished difference Result 89 states and 154 transitions. [2023-11-26 11:49:36,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:49:36,399 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 100 [2023-11-26 11:49:36,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:36,407 INFO L225 Difference]: With dead ends: 89 [2023-11-26 11:49:36,408 INFO L226 Difference]: Without dead ends: 44 [2023-11-26 11:49:36,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:49:36,417 INFO L413 NwaCegarLoop]: 62 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, 62 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:36,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:49:36,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-26 11:49:36,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-26 11:49:36,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 11:49:36,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 65 transitions. [2023-11-26 11:49:36,501 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 65 transitions. Word has length 100 [2023-11-26 11:49:36,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:36,503 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 65 transitions. [2023-11-26 11:49:36,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-26 11:49:36,505 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 65 transitions. [2023-11-26 11:49:36,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-26 11:49:36,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:36,515 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:36,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:49:36,516 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:36,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:36,518 INFO L85 PathProgramCache]: Analyzing trace with hash -592519995, now seen corresponding path program 1 times [2023-11-26 11:49:36,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:36,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411134033] [2023-11-26 11:49:36,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:36,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:49:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:49:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 11:49:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-26 11:49:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 11:49:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 11:49:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-26 11:49:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-26 11:49:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-26 11:49:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-26 11:49:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-26 11:49:37,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-26 11:49:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-26 11:49:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-26 11:49:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-26 11:49:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,088 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-26 11:49:37,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:37,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411134033] [2023-11-26 11:49:37,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411134033] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:37,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:37,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:49:37,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586011221] [2023-11-26 11:49:37,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:37,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:49:37,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:37,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:49:37,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:49:37,094 INFO L87 Difference]: Start difference. First operand 44 states and 65 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-26 11:49:37,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:37,157 INFO L93 Difference]: Finished difference Result 130 states and 193 transitions. [2023-11-26 11:49:37,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:49:37,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 100 [2023-11-26 11:49:37,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:37,169 INFO L225 Difference]: With dead ends: 130 [2023-11-26 11:49:37,169 INFO L226 Difference]: Without dead ends: 87 [2023-11-26 11:49:37,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:49:37,173 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 31 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:37,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 119 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:49:37,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-26 11:49:37,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 84. [2023-11-26 11:49:37,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 49 states have internal predecessors, (61), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-26 11:49:37,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 125 transitions. [2023-11-26 11:49:37,231 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 125 transitions. Word has length 100 [2023-11-26 11:49:37,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:37,232 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 125 transitions. [2023-11-26 11:49:37,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-26 11:49:37,233 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 125 transitions. [2023-11-26 11:49:37,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-26 11:49:37,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:37,235 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:37,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:49:37,236 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:37,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:37,237 INFO L85 PathProgramCache]: Analyzing trace with hash -590672953, now seen corresponding path program 1 times [2023-11-26 11:49:37,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:37,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333901975] [2023-11-26 11:49:37,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:37,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:37,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:49:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:49:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 11:49:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-26 11:49:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 11:49:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 11:49:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-26 11:49:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-26 11:49:37,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-26 11:49:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-26 11:49:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-26 11:49:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-26 11:49:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-26 11:49:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-26 11:49:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-26 11:49:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,823 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 3 proven. 42 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-26 11:49:37,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:37,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333901975] [2023-11-26 11:49:37,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333901975] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:49:37,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965824638] [2023-11-26 11:49:37,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:37,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:49:37,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:49:37,832 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:49:37,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:49:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:49:38,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:49:38,407 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 73 proven. 42 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2023-11-26 11:49:38,413 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:49:38,699 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 3 proven. 42 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-26 11:49:38,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965824638] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:49:38,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:49:38,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2023-11-26 11:49:38,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866233024] [2023-11-26 11:49:38,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:49:38,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:49:38,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:38,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:49:38,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:49:38,708 INFO L87 Difference]: Start difference. First operand 84 states and 125 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-26 11:49:38,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:38,956 INFO L93 Difference]: Finished difference Result 183 states and 263 transitions. [2023-11-26 11:49:38,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:49:38,957 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 100 [2023-11-26 11:49:38,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:38,963 INFO L225 Difference]: With dead ends: 183 [2023-11-26 11:49:38,963 INFO L226 Difference]: Without dead ends: 100 [2023-11-26 11:49:38,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 227 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:49:38,969 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 31 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:38,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 92 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:49:38,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-26 11:49:39,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 92. [2023-11-26 11:49:39,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 55 states have (on average 1.1818181818181819) internal successors, (65), 55 states have internal predecessors, (65), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-26 11:49:39,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 129 transitions. [2023-11-26 11:49:39,012 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 129 transitions. Word has length 100 [2023-11-26 11:49:39,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:39,014 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 129 transitions. [2023-11-26 11:49:39,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-26 11:49:39,015 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 129 transitions. [2023-11-26 11:49:39,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-26 11:49:39,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:39,025 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:39,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:49:39,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:49:39,248 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:39,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:39,248 INFO L85 PathProgramCache]: Analyzing trace with hash -590613371, now seen corresponding path program 1 times [2023-11-26 11:49:39,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:39,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678264041] [2023-11-26 11:49:39,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:39,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:49:39,311 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:49:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:49:39,414 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:49:39,414 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:49:39,416 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:49:39,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:49:39,422 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-26 11:49:39,426 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:49:39,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:49:39 BoogieIcfgContainer [2023-11-26 11:49:39,501 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:49:39,502 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:49:39,502 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:49:39,502 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:49:39,503 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:49:35" (3/4) ... [2023-11-26 11:49:39,506 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:49:39,507 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:49:39,508 INFO L158 Benchmark]: Toolchain (without parser) took 5027.62ms. Allocated memory was 163.6MB in the beginning and 201.3MB in the end (delta: 37.7MB). Free memory was 117.1MB in the beginning and 161.0MB in the end (delta: -43.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:49:39,508 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 163.6MB. Free memory is still 107.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:49:39,509 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.73ms. Allocated memory is still 163.6MB. Free memory was 117.1MB in the beginning and 104.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 11:49:39,509 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.19ms. Allocated memory is still 163.6MB. Free memory was 104.5MB in the beginning and 102.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:49:39,510 INFO L158 Benchmark]: Boogie Preprocessor took 58.40ms. Allocated memory is still 163.6MB. Free memory was 102.4MB in the beginning and 99.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:49:39,510 INFO L158 Benchmark]: RCFGBuilder took 675.18ms. Allocated memory is still 163.6MB. Free memory was 99.6MB in the beginning and 82.2MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 11:49:39,511 INFO L158 Benchmark]: TraceAbstraction took 3859.30ms. Allocated memory was 163.6MB in the beginning and 201.3MB in the end (delta: 37.7MB). Free memory was 81.4MB in the beginning and 162.0MB in the end (delta: -80.6MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. [2023-11-26 11:49:39,511 INFO L158 Benchmark]: Witness Printer took 5.10ms. Allocated memory is still 201.3MB. Free memory was 162.0MB in the beginning and 161.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:49:39,514 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 163.6MB. Free memory is still 107.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.73ms. Allocated memory is still 163.6MB. Free memory was 117.1MB in the beginning and 104.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.19ms. Allocated memory is still 163.6MB. Free memory was 104.5MB in the beginning and 102.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.40ms. Allocated memory is still 163.6MB. Free memory was 102.4MB in the beginning and 99.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 675.18ms. Allocated memory is still 163.6MB. Free memory was 99.6MB in the beginning and 82.2MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3859.30ms. Allocated memory was 163.6MB in the beginning and 201.3MB in the end (delta: 37.7MB). Free memory was 81.4MB in the beginning and 162.0MB in the end (delta: -80.6MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. * Witness Printer took 5.10ms. Allocated memory is still 201.3MB. Free memory was 162.0MB in the beginning and 161.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 98, overapproximation of someUnaryDOUBLEoperation at line 33. 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] signed long int var_1_6 = -64; [L26] signed long int var_1_7 = -5; [L27] signed long int var_1_8 = 500; [L28] signed long int var_1_9 = -5; [L29] signed long int var_1_10 = -100; [L30] unsigned char var_1_11 = 1; [L31] double var_1_12 = 127.5; [L32] double var_1_13 = 15.75; [L33] double var_1_14 = -0.5; [L34] double var_1_15 = 5.25; [L35] double var_1_16 = 8.5; [L36] unsigned char last_1_var_1_11 = 1; [L102] isInitial = 1 [L103] FCALL initially() [L104] COND TRUE 1 [L105] CALL updateLastVariables() [L95] last_1_var_1_11 = var_1_11 [L105] RET updateLastVariables() [L106] CALL updateVariables() [L67] var_1_4 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L68] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L69] CALL assume_abort_if_not(var_1_4 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L69] RET assume_abort_if_not(var_1_4 <= 0) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L70] var_1_5 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L71] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L72] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L72] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L73] var_1_7 = __VERIFIER_nondet_long() [L74] CALL assume_abort_if_not(var_1_7 >= -1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=500, var_1_9=-5] [L74] RET assume_abort_if_not(var_1_7 >= -1073741823) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=500, var_1_9=-5] [L75] CALL assume_abort_if_not(var_1_7 <= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=500, var_1_9=-5] [L75] RET assume_abort_if_not(var_1_7 <= 1073741823) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=500, var_1_9=-5] [L76] var_1_8 = __VERIFIER_nondet_long() [L77] CALL assume_abort_if_not(var_1_8 >= -1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-5] [L77] RET assume_abort_if_not(var_1_8 >= -1073741823) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-5] [L78] CALL assume_abort_if_not(var_1_8 <= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-5] [L78] RET assume_abort_if_not(var_1_8 <= 1073741823) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-5] [L79] var_1_9 = __VERIFIER_nondet_long() [L80] CALL assume_abort_if_not(var_1_9 >= -536870912) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L80] RET assume_abort_if_not(var_1_9 >= -536870912) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L81] CALL assume_abort_if_not(var_1_9 <= 536870912) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L81] RET assume_abort_if_not(var_1_9 <= 536870912) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L82] var_1_10 = __VERIFIER_nondet_long() [L83] CALL assume_abort_if_not(var_1_10 >= -536870911) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L83] RET assume_abort_if_not(var_1_10 >= -536870911) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L84] CALL assume_abort_if_not(var_1_10 <= 536870911) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L84] RET assume_abort_if_not(var_1_10 <= 536870911) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_13=63/4, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L85] var_1_13 = __VERIFIER_nondet_double() [L86] CALL assume_abort_if_not((var_1_13 >= -461168.6018427382800e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L86] RET assume_abort_if_not((var_1_13 >= -461168.6018427382800e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L87] var_1_14 = __VERIFIER_nondet_double() [L88] CALL assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L88] RET assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_15=21/4, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L89] var_1_15 = __VERIFIER_nondet_double() [L90] CALL assume_abort_if_not((var_1_15 >= -461168.6018427382800e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L90] RET assume_abort_if_not((var_1_15 >= -461168.6018427382800e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_16=17/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L91] var_1_16 = __VERIFIER_nondet_double() [L92] CALL assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && 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=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L92] RET assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && 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=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L106] RET updateVariables() [L107] CALL step() [L40] unsigned char stepLocal_0 = last_1_var_1_11; VAL [isInitial=1, last_1_var_1_11=1, stepLocal_0=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L41] COND FALSE !(! last_1_var_1_11) VAL [isInitial=1, last_1_var_1_11=1, stepLocal_0=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L46] signed long int stepLocal_2 = var_1_7; [L47] signed long int stepLocal_1 = var_1_10; VAL [isInitial=1, last_1_var_1_11=1, stepLocal_0=1, stepLocal_1=536870911, stepLocal_2=-536870912, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L48] COND FALSE !(var_1_8 <= stepLocal_2) VAL [isInitial=1, last_1_var_1_11=1, stepLocal_0=1, stepLocal_1=536870911, stepLocal_2=-536870912, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L55] COND FALSE !(! var_1_11) [L58] var_1_6 = ((((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))) + var_1_10) + var_1_7) VAL [isInitial=1, last_1_var_1_11=1, stepLocal_0=1, stepLocal_1=536870911, stepLocal_2=-536870912, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L60] COND FALSE !(\read(var_1_4)) [L63] var_1_12 = var_1_15 VAL [isInitial=1, last_1_var_1_11=1, stepLocal_0=1, stepLocal_1=536870911, stepLocal_2=-536870912, var_1_10=536870911, var_1_11=1, var_1_12=536870916, var_1_15=536870916, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L107] RET step() [L108] CALL, EXPR property() [L98-L99] return ((((! last_1_var_1_11) ? ((last_1_var_1_11 && last_1_var_1_11) ? (var_1_1 == ((unsigned char) (var_1_4 || var_1_5))) : 1) : 1) && ((! var_1_11) ? (var_1_6 == ((signed long int) (var_1_7 + var_1_8))) : (var_1_6 == ((signed long int) ((((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))) + var_1_10) + var_1_7))))) && ((var_1_8 <= var_1_7) ? ((var_1_10 >= var_1_9) ? (var_1_11 == ((unsigned char) (! var_1_5))) : (var_1_11 == ((unsigned char) (var_1_1 || (! var_1_5))))) : 1)) && (var_1_4 ? (var_1_12 == ((double) (((((((((var_1_13) > (var_1_14)) ? (var_1_13) : (var_1_14))) + var_1_15)) < ((((((((3.5) < (var_1_16)) ? (3.5) : (var_1_16))) < 0 ) ? -((((3.5) < (var_1_16)) ? (3.5) : (var_1_16))) : ((((3.5) < (var_1_16)) ? (3.5) : (var_1_16))))))) ? ((((((var_1_13) > (var_1_14)) ? (var_1_13) : (var_1_14))) + var_1_15)) : ((((((((3.5) < (var_1_16)) ? (3.5) : (var_1_16))) < 0 ) ? -((((3.5) < (var_1_16)) ? (3.5) : (var_1_16))) : ((((3.5) < (var_1_16)) ? (3.5) : (var_1_16)))))))))) : (var_1_12 == ((double) var_1_15))) ; [L108] RET, EXPR property() [L108] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=1, var_1_10=536870911, var_1_11=1, var_1_12=536870916, var_1_15=536870916, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=1, var_1_10=536870911, var_1_11=1, var_1_12=536870916, var_1_15=536870916, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-536870912, var_1_8=-536870911, var_1_9=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 4, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 273 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 108 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 114 IncrementalHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 165 mSDtfsCounter, 114 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 323 GetRequests, 311 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred 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: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 500 NumberOfCodeBlocks, 500 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 495 ConstructedInterpolants, 0 QuantifiedInterpolants, 1467 SizeOfPredicates, 3 NumberOfNonLiveVariables, 237 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 2274/2400 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-26 11:49:39,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7653fcc22bc6223490ab137d2e71462c760555325edac4f323356ac25b70c1e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:49:42,288 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:49:42,430 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 11:49:42,441 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:49:42,442 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:49:42,490 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:49:42,490 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:49:42,491 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:49:42,492 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:49:42,497 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:49:42,498 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:49:42,499 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:49:42,499 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:49:42,501 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:49:42,502 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:49:42,503 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:49:42,503 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:49:42,504 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:49:42,504 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:49:42,506 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:49:42,506 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:49:42,507 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:49:42,507 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:49:42,508 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:49:42,508 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 11:49:42,509 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 11:49:42,509 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:49:42,510 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:49:42,510 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:49:42,511 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:49:42,512 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:49:42,513 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:49:42,513 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:49:42,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:49:42,514 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:49:42,514 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:49:42,515 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:49:42,515 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 11:49:42,516 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 11:49:42,516 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:49:42,516 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:49:42,517 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:49:42,517 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:49:42,517 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:49:42,518 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 11:49:42,518 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_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7653fcc22bc6223490ab137d2e71462c760555325edac4f323356ac25b70c1e [2023-11-26 11:49:42,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:49:42,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:49:42,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:49:42,952 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:49:42,952 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:49:42,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-3.i [2023-11-26 11:49:46,223 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:49:46,535 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:49:46,544 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-3.i [2023-11-26 11:49:46,554 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/data/096b54f0d/0e51f7edb0ab476b84be9cbb76b5fcf2/FLAGc0625e0d1 [2023-11-26 11:49:46,568 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/data/096b54f0d/0e51f7edb0ab476b84be9cbb76b5fcf2 [2023-11-26 11:49:46,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:49:46,572 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:49:46,574 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:49:46,574 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:49:46,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:49:46,583 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:49:46" (1/1) ... [2023-11-26 11:49:46,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68f32a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:46, skipping insertion in model container [2023-11-26 11:49:46,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:49:46" (1/1) ... [2023-11-26 11:49:46,628 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:49:46,841 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_b0e88279-b1d8-4db3-8d6e-965b39ac9760/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-3.i[916,929] [2023-11-26 11:49:46,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:49:46,924 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:49:46,950 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_b0e88279-b1d8-4db3-8d6e-965b39ac9760/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-3.i[916,929] [2023-11-26 11:49:46,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:49:46,992 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:49:46,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:46 WrapperNode [2023-11-26 11:49:46,993 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:49:46,994 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:49:46,995 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:49:46,995 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:49:47,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:46" (1/1) ... [2023-11-26 11:49:47,028 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:46" (1/1) ... [2023-11-26 11:49:47,072 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 112 [2023-11-26 11:49:47,081 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:49:47,082 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:49:47,083 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:49:47,083 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:49:47,095 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:46" (1/1) ... [2023-11-26 11:49:47,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:46" (1/1) ... [2023-11-26 11:49:47,113 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:46" (1/1) ... [2023-11-26 11:49:47,144 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:49:47,145 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:46" (1/1) ... [2023-11-26 11:49:47,145 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:46" (1/1) ... [2023-11-26 11:49:47,157 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:46" (1/1) ... [2023-11-26 11:49:47,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:46" (1/1) ... [2023-11-26 11:49:47,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:46" (1/1) ... [2023-11-26 11:49:47,168 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:46" (1/1) ... [2023-11-26 11:49:47,173 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:49:47,174 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:49:47,175 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:49:47,175 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:49:47,176 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:46" (1/1) ... [2023-11-26 11:49:47,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:49:47,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:49:47,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:49:47,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:49:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:49:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 11:49:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:49:47,294 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:49:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:49:47,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:49:47,433 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:49:47,436 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:49:48,703 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:49:48,752 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:49:48,753 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:49:48,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:49:48 BoogieIcfgContainer [2023-11-26 11:49:48,753 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:49:48,756 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:49:48,756 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:49:48,759 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:49:48,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:49:46" (1/3) ... [2023-11-26 11:49:48,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ef66ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:49:48, skipping insertion in model container [2023-11-26 11:49:48,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:46" (2/3) ... [2023-11-26 11:49:48,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ef66ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:49:48, skipping insertion in model container [2023-11-26 11:49:48,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:49:48" (3/3) ... [2023-11-26 11:49:48,763 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-3.i [2023-11-26 11:49:48,782 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:49:48,783 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:49:48,835 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:49:48,842 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;@54769a5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:49:48,843 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:49:48,847 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 28 states have internal predecessors, (38), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 11:49:48,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-26 11:49:48,862 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:48,863 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:48,864 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:48,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:48,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1892712653, now seen corresponding path program 1 times [2023-11-26 11:49:48,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:49:48,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [76519246] [2023-11-26 11:49:48,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:48,891 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:49:48,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:49:48,896 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 11:49:48,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-26 11:49:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:49,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:49:49,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:49:49,287 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 206 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2023-11-26 11:49:49,288 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:49:49,289 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:49:49,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [76519246] [2023-11-26 11:49:49,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [76519246] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:49,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:49,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:49:49,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269177367] [2023-11-26 11:49:49,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:49,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:49:49,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:49:49,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:49:49,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:49:49,340 INFO L87 Difference]: Start difference. First operand has 46 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 28 states have internal predecessors, (38), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-26 11:49:49,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:49,551 INFO L93 Difference]: Finished difference Result 89 states and 154 transitions. [2023-11-26 11:49:49,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:49:49,561 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 100 [2023-11-26 11:49:49,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:49,569 INFO L225 Difference]: With dead ends: 89 [2023-11-26 11:49:49,569 INFO L226 Difference]: Without dead ends: 44 [2023-11-26 11:49:49,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:49:49,577 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:49,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:49:49,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-26 11:49:49,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-26 11:49:49,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 11:49:49,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 65 transitions. [2023-11-26 11:49:49,625 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 65 transitions. Word has length 100 [2023-11-26 11:49:49,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:49,626 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 65 transitions. [2023-11-26 11:49:49,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-26 11:49:49,626 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 65 transitions. [2023-11-26 11:49:49,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-26 11:49:49,631 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:49,632 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:49,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:49:49,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:49:49,838 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:49,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:49,839 INFO L85 PathProgramCache]: Analyzing trace with hash -592519995, now seen corresponding path program 1 times [2023-11-26 11:49:49,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:49:49,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969177347] [2023-11-26 11:49:49,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:49,841 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:49:49,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:49:49,843 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 11:49:49,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-26 11:49:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:50,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:49:50,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:49:50,528 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-26 11:49:50,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:49:50,529 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:49:50,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969177347] [2023-11-26 11:49:50,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969177347] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:50,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:50,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:49:50,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561822462] [2023-11-26 11:49:50,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:50,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:49:50,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:49:50,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:49:50,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:49:50,534 INFO L87 Difference]: Start difference. First operand 44 states and 65 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-26 11:49:50,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:50,824 INFO L93 Difference]: Finished difference Result 130 states and 193 transitions. [2023-11-26 11:49:50,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:49:50,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 100 [2023-11-26 11:49:50,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:50,829 INFO L225 Difference]: With dead ends: 130 [2023-11-26 11:49:50,829 INFO L226 Difference]: Without dead ends: 87 [2023-11-26 11:49:50,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:49:50,832 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 12 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:50,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 119 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:49:50,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-26 11:49:50,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 84. [2023-11-26 11:49:50,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 49 states have internal predecessors, (61), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-26 11:49:50,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 125 transitions. [2023-11-26 11:49:50,863 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 125 transitions. Word has length 100 [2023-11-26 11:49:50,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:50,864 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 125 transitions. [2023-11-26 11:49:50,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-26 11:49:50,864 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 125 transitions. [2023-11-26 11:49:50,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-26 11:49:50,867 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:50,867 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:50,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:49:51,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:49:51,075 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:51,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:51,075 INFO L85 PathProgramCache]: Analyzing trace with hash -590672953, now seen corresponding path program 1 times [2023-11-26 11:49:51,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:49:51,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113504518] [2023-11-26 11:49:51,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:51,077 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:49:51,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:49:51,078 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 11:49:51,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-26 11:49:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:51,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:49:51,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:49:51,692 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 73 proven. 42 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2023-11-26 11:49:51,693 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:49:51,997 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 3 proven. 42 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-26 11:49:51,998 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:49:52,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113504518] [2023-11-26 11:49:52,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113504518] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:49:52,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:49:52,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-26 11:49:52,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391578865] [2023-11-26 11:49:52,011 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:49:52,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:49:52,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:49:52,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:49:52,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:49:52,018 INFO L87 Difference]: Start difference. First operand 84 states and 125 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-26 11:49:53,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:53,033 INFO L93 Difference]: Finished difference Result 183 states and 263 transitions. [2023-11-26 11:49:53,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:49:53,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 100 [2023-11-26 11:49:53,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:53,047 INFO L225 Difference]: With dead ends: 183 [2023-11-26 11:49:53,047 INFO L226 Difference]: Without dead ends: 100 [2023-11-26 11:49:53,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:49:53,050 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 30 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:53,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 91 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:49:53,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-26 11:49:53,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 92. [2023-11-26 11:49:53,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 55 states have (on average 1.1818181818181819) internal successors, (65), 55 states have internal predecessors, (65), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-26 11:49:53,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 129 transitions. [2023-11-26 11:49:53,096 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 129 transitions. Word has length 100 [2023-11-26 11:49:53,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:53,097 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 129 transitions. [2023-11-26 11:49:53,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-26 11:49:53,098 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 129 transitions. [2023-11-26 11:49:53,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-26 11:49:53,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:53,100 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:53,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-26 11:49:53,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:49:53,308 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:53,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:53,309 INFO L85 PathProgramCache]: Analyzing trace with hash -590613371, now seen corresponding path program 1 times [2023-11-26 11:49:53,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:49:53,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140153076] [2023-11-26 11:49:53,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:53,310 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:49:53,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:49:53,311 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 11:49:53,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e88279-b1d8-4db3-8d6e-965b39ac9760/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-26 11:49:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:53,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-26 11:49:53,680 INFO L285 TraceCheckSpWp]: Computing forward predicates...