./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-89.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/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_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-89.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/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_362fdd9a-7832-4d9b-935e-24c07d495c7c/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 0e5b25db77af6087a8d68144f29b6dbfffc93c4c0b7ce6d33c40c5bcadf93148 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:50:07,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:50:08,073 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 10:50:08,082 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:50:08,083 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:50:08,123 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:50:08,124 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:50:08,125 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:50:08,126 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:50:08,131 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:50:08,131 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:50:08,132 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:50:08,133 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:50:08,135 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:50:08,135 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:50:08,136 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:50:08,136 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:50:08,137 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:50:08,137 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:50:08,138 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:50:08,138 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:50:08,139 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:50:08,139 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:50:08,140 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:50:08,140 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:50:08,141 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:50:08,141 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:50:08,142 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:50:08,142 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:50:08,143 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:50:08,144 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:50:08,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:50:08,145 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:50:08,145 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:50:08,145 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:50:08,146 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:50:08,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:50:08,146 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:50:08,146 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:50:08,147 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:50:08,147 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:50:08,147 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:50:08,147 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e5b25db77af6087a8d68144f29b6dbfffc93c4c0b7ce6d33c40c5bcadf93148 [2023-11-26 10:50:08,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:50:08,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:50:08,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:50:08,492 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:50:08,493 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:50:08,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-89.i [2023-11-26 10:50:11,658 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:50:11,927 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:50:11,928 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-89.i [2023-11-26 10:50:11,938 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/data/13e6a76ce/d6bc012e2edd4eea9c7bfc67015e7896/FLAGa13012c80 [2023-11-26 10:50:11,954 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/data/13e6a76ce/d6bc012e2edd4eea9c7bfc67015e7896 [2023-11-26 10:50:11,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:50:11,958 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:50:11,960 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:50:11,960 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:50:11,972 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:50:11,973 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:50:11" (1/1) ... [2023-11-26 10:50:11,975 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d3c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:11, skipping insertion in model container [2023-11-26 10:50:11,975 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:50:11" (1/1) ... [2023-11-26 10:50:12,028 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:50:12,215 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_362fdd9a-7832-4d9b-935e-24c07d495c7c/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-89.i[917,930] [2023-11-26 10:50:12,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:50:12,288 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:50:12,302 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_362fdd9a-7832-4d9b-935e-24c07d495c7c/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-89.i[917,930] [2023-11-26 10:50:12,338 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:50:12,358 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:50:12,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:12 WrapperNode [2023-11-26 10:50:12,359 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:50:12,360 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:50:12,360 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:50:12,360 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:50:12,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:12" (1/1) ... [2023-11-26 10:50:12,379 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:12" (1/1) ... [2023-11-26 10:50:12,428 INFO L138 Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 149 [2023-11-26 10:50:12,434 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:50:12,437 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:50:12,438 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:50:12,438 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:50:12,449 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:12" (1/1) ... [2023-11-26 10:50:12,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:12" (1/1) ... [2023-11-26 10:50:12,453 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:12" (1/1) ... [2023-11-26 10:50:12,470 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 10:50:12,470 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:12" (1/1) ... [2023-11-26 10:50:12,470 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:12" (1/1) ... [2023-11-26 10:50:12,480 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:12" (1/1) ... [2023-11-26 10:50:12,484 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:12" (1/1) ... [2023-11-26 10:50:12,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:12" (1/1) ... [2023-11-26 10:50:12,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:12" (1/1) ... [2023-11-26 10:50:12,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:50:12,494 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:50:12,494 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:50:12,494 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:50:12,495 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:12" (1/1) ... [2023-11-26 10:50:12,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:50:12,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:50:12,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:50:12,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:50:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:50:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 10:50:12,579 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 10:50:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:50:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:50:12,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:50:12,695 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:50:12,698 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:50:13,129 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:50:13,189 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:50:13,189 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:50:13,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:50:13 BoogieIcfgContainer [2023-11-26 10:50:13,204 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:50:13,206 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:50:13,206 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:50:13,210 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:50:13,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:50:11" (1/3) ... [2023-11-26 10:50:13,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d78df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:50:13, skipping insertion in model container [2023-11-26 10:50:13,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:12" (2/3) ... [2023-11-26 10:50:13,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d78df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:50:13, skipping insertion in model container [2023-11-26 10:50:13,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:50:13" (3/3) ... [2023-11-26 10:50:13,220 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-89.i [2023-11-26 10:50:13,255 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:50:13,255 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:50:13,303 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:50:13,311 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;@2ce147d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:50:13,311 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:50:13,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 37 states have (on average 1.4864864864864864) internal successors, (55), 38 states have internal predecessors, (55), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 10:50:13,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-26 10:50:13,332 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:50:13,332 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:50:13,333 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:50:13,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:13,338 INFO L85 PathProgramCache]: Analyzing trace with hash 749126443, now seen corresponding path program 1 times [2023-11-26 10:50:13,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:13,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394959801] [2023-11-26 10:50:13,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:13,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:13,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:50:13,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394959801] [2023-11-26 10:50:13,655 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-26 10:50:13,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291031235] [2023-11-26 10:50:13,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:13,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:50:13,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:50:13,667 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:50:13,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:50:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:13,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 10:50:13,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:50:14,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2023-11-26 10:50:14,023 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:50:14,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291031235] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:14,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:14,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:50:14,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758254214] [2023-11-26 10:50:14,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:14,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:50:14,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:14,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:50:14,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:50:14,066 INFO L87 Difference]: Start difference. First operand has 64 states, 37 states have (on average 1.4864864864864864) internal successors, (55), 38 states have internal predecessors, (55), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-26 10:50:14,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:50:14,110 INFO L93 Difference]: Finished difference Result 125 states and 228 transitions. [2023-11-26 10:50:14,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:50:14,113 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) Word has length 145 [2023-11-26 10:50:14,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:50:14,122 INFO L225 Difference]: With dead ends: 125 [2023-11-26 10:50:14,122 INFO L226 Difference]: Without dead ends: 62 [2023-11-26 10:50:14,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 144 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 10:50:14,130 INFO L413 NwaCegarLoop]: 95 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, 95 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 10:50:14,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:50:14,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-26 10:50:14,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-11-26 10:50:14,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 36 states have internal predecessors, (50), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 10:50:14,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 98 transitions. [2023-11-26 10:50:14,183 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 98 transitions. Word has length 145 [2023-11-26 10:50:14,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:50:14,184 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 98 transitions. [2023-11-26 10:50:14,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-26 10:50:14,185 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 98 transitions. [2023-11-26 10:50:14,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-26 10:50:14,189 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:50:14,189 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:50:14,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-26 10:50:14,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-26 10:50:14,396 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:50:14,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:14,397 INFO L85 PathProgramCache]: Analyzing trace with hash 822949487, now seen corresponding path program 1 times [2023-11-26 10:50:14,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:14,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032282366] [2023-11-26 10:50:14,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:14,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:14,510 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:50:14,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1560074549] [2023-11-26 10:50:14,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:14,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:50:14,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:50:14,524 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:50:14,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 10:50:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:14,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 10:50:14,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:50:14,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 155 proven. 3 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-26 10:50:14,874 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:50:15,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-11-26 10:50:15,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:50:15,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032282366] [2023-11-26 10:50:15,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:50:15,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560074549] [2023-11-26 10:50:15,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560074549] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:50:15,136 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 10:50:15,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-26 10:50:15,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137775495] [2023-11-26 10:50:15,138 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 10:50:15,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:50:15,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:15,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:50:15,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:50:15,144 INFO L87 Difference]: Start difference. First operand 62 states and 98 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-26 10:50:15,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:50:15,424 INFO L93 Difference]: Finished difference Result 131 states and 202 transitions. [2023-11-26 10:50:15,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 10:50:15,425 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 145 [2023-11-26 10:50:15,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:50:15,430 INFO L225 Difference]: With dead ends: 131 [2023-11-26 10:50:15,432 INFO L226 Difference]: Without dead ends: 70 [2023-11-26 10:50:15,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 282 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-26 10:50:15,436 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 98 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:50:15,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 147 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 10:50:15,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-26 10:50:15,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2023-11-26 10:50:15,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 39 states have internal predecessors, (52), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 10:50:15,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 100 transitions. [2023-11-26 10:50:15,480 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 100 transitions. Word has length 145 [2023-11-26 10:50:15,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:50:15,482 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 100 transitions. [2023-11-26 10:50:15,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-26 10:50:15,483 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 100 transitions. [2023-11-26 10:50:15,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-26 10:50:15,493 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:50:15,494 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:50:15,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:50:15,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:50:15,709 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:50:15,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:15,712 INFO L85 PathProgramCache]: Analyzing trace with hash 823009069, now seen corresponding path program 1 times [2023-11-26 10:50:15,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:15,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114479364] [2023-11-26 10:50:15,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:15,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:15,783 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:50:15,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1557330232] [2023-11-26 10:50:15,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:15,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:50:15,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:50:15,795 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:50:15,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 10:50:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:15,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:50:15,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:50:16,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-26 10:50:16,201 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:50:16,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:50:16,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114479364] [2023-11-26 10:50:16,202 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:50:16,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557330232] [2023-11-26 10:50:16,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557330232] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:16,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:16,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:50:16,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285533242] [2023-11-26 10:50:16,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:16,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:50:16,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:16,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:50:16,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:50:16,207 INFO L87 Difference]: Start difference. First operand 66 states and 100 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-26 10:50:16,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:50:16,269 INFO L93 Difference]: Finished difference Result 195 states and 297 transitions. [2023-11-26 10:50:16,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:50:16,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 145 [2023-11-26 10:50:16,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:50:16,279 INFO L225 Difference]: With dead ends: 195 [2023-11-26 10:50:16,279 INFO L226 Difference]: Without dead ends: 130 [2023-11-26 10:50:16,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 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 10:50:16,287 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 21 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:50:16,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 182 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:50:16,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-26 10:50:16,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2023-11-26 10:50:16,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 73 states have (on average 1.3150684931506849) internal successors, (96), 73 states have internal predecessors, (96), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-26 10:50:16,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 192 transitions. [2023-11-26 10:50:16,338 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 192 transitions. Word has length 145 [2023-11-26 10:50:16,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:50:16,339 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 192 transitions. [2023-11-26 10:50:16,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-26 10:50:16,341 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 192 transitions. [2023-11-26 10:50:16,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-26 10:50:16,344 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:50:16,344 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:50:16,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 10:50:16,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:50:16,551 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:50:16,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:16,552 INFO L85 PathProgramCache]: Analyzing trace with hash 830635565, now seen corresponding path program 1 times [2023-11-26 10:50:16,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:16,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450161482] [2023-11-26 10:50:16,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:16,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:16,588 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:50:16,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [384220470] [2023-11-26 10:50:16,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:16,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:50:16,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:50:16,590 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:50:16,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 10:50:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:50:16,718 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:50:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:50:16,890 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:50:16,891 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:50:16,892 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 10:50:16,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 10:50:17,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:50:17,108 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-26 10:50:17,112 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:50:17,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:50:17 BoogieIcfgContainer [2023-11-26 10:50:17,286 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:50:17,287 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:50:17,287 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:50:17,287 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:50:17,289 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:50:13" (3/4) ... [2023-11-26 10:50:17,291 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:50:17,292 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:50:17,293 INFO L158 Benchmark]: Toolchain (without parser) took 5335.07ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 113.8MB in the beginning and 150.6MB in the end (delta: -36.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:50:17,294 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:50:17,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.58ms. Allocated memory is still 155.2MB. Free memory was 113.8MB in the beginning and 99.9MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 10:50:17,295 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.76ms. Allocated memory is still 155.2MB. Free memory was 99.9MB in the beginning and 96.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:50:17,295 INFO L158 Benchmark]: Boogie Preprocessor took 55.78ms. Allocated memory is still 155.2MB. Free memory was 96.8MB in the beginning and 92.2MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 10:50:17,299 INFO L158 Benchmark]: RCFGBuilder took 710.10ms. Allocated memory is still 155.2MB. Free memory was 92.2MB in the beginning and 124.5MB in the end (delta: -32.2MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2023-11-26 10:50:17,303 INFO L158 Benchmark]: TraceAbstraction took 4080.11ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 123.8MB in the beginning and 151.7MB in the end (delta: -27.9MB). Peak memory consumption was 108.2MB. Max. memory is 16.1GB. [2023-11-26 10:50:17,303 INFO L158 Benchmark]: Witness Printer took 5.82ms. Allocated memory is still 186.6MB. Free memory was 151.7MB in the beginning and 150.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:50:17,306 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.58ms. Allocated memory is still 155.2MB. Free memory was 113.8MB in the beginning and 99.9MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.76ms. Allocated memory is still 155.2MB. Free memory was 99.9MB in the beginning and 96.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.78ms. Allocated memory is still 155.2MB. Free memory was 96.8MB in the beginning and 92.2MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 710.10ms. Allocated memory is still 155.2MB. Free memory was 92.2MB in the beginning and 124.5MB in the end (delta: -32.2MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4080.11ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 123.8MB in the beginning and 151.7MB in the end (delta: -27.9MB). Peak memory consumption was 108.2MB. Max. memory is 16.1GB. * Witness Printer took 5.82ms. Allocated memory is still 186.6MB. Free memory was 151.7MB in the beginning and 150.6MB 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 138. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 32; [L23] signed long int var_1_2 = 16; [L24] signed long int var_1_3 = 4; [L25] unsigned char var_1_4 = 0; [L26] signed long int var_1_5 = 4; [L27] signed long int var_1_6 = 256; [L28] signed long int var_1_7 = -1; [L29] unsigned short int var_1_8 = 32; [L30] signed long int var_1_9 = -16; [L31] unsigned short int var_1_10 = 5; [L32] unsigned short int var_1_11 = 128; [L33] unsigned char var_1_12 = 32; [L34] unsigned char var_1_13 = 1; [L35] unsigned char var_1_14 = 0; [L36] unsigned char var_1_15 = 0; [L37] double var_1_16 = 63.75; [L38] double var_1_17 = 8.5; [L39] signed short int var_1_18 = -64; [L142] isInitial = 1 [L143] FCALL initially() [L144] COND TRUE 1 [L145] FCALL updateLastVariables() [L146] CALL updateVariables() [L98] var_1_2 = __VERIFIER_nondet_long() [L99] CALL assume_abort_if_not(var_1_2 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=4, var_1_4=0, var_1_5=4, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=4, var_1_4=0, var_1_5=4, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L99] RET assume_abort_if_not(var_1_2 >= -2147483648) VAL [isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=4, var_1_4=0, var_1_5=4, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L100] CALL assume_abort_if_not(var_1_2 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=4, var_1_4=0, var_1_5=4, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=4, var_1_4=0, var_1_5=4, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L100] RET assume_abort_if_not(var_1_2 <= 2147483647) VAL [isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=4, var_1_4=0, var_1_5=4, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L101] var_1_3 = __VERIFIER_nondet_long() [L102] CALL assume_abort_if_not(var_1_3 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=4, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=4, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L102] RET assume_abort_if_not(var_1_3 >= -2147483648) VAL [isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=4, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L103] CALL assume_abort_if_not(var_1_3 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=4, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=4, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L103] RET assume_abort_if_not(var_1_3 <= 2147483647) VAL [isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=4, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L104] var_1_4 = __VERIFIER_nondet_uchar() [L105] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_5=4, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_5=4, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L105] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_5=4, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L106] CALL assume_abort_if_not(var_1_4 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=4, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=4, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L106] RET assume_abort_if_not(var_1_4 <= 1) VAL [isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=4, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L107] var_1_5 = __VERIFIER_nondet_long() [L108] CALL assume_abort_if_not(var_1_5 >= -2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L108] RET assume_abort_if_not(var_1_5 >= -2147483647) VAL [isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L109] CALL assume_abort_if_not(var_1_5 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L109] RET assume_abort_if_not(var_1_5 <= 2147483646) VAL [isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=256, var_1_7=-1, var_1_8=32, var_1_9=-16] [L110] var_1_6 = __VERIFIER_nondet_long() [L111] CALL assume_abort_if_not(var_1_6 >= -2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-1, var_1_8=32, var_1_9=-16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-1, var_1_8=32, var_1_9=-16] [L111] RET assume_abort_if_not(var_1_6 >= -2147483647) VAL [isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-1, var_1_8=32, var_1_9=-16] [L112] CALL assume_abort_if_not(var_1_6 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-1, var_1_8=32, var_1_9=-16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-1, var_1_8=32, var_1_9=-16] [L112] RET assume_abort_if_not(var_1_6 <= 2147483646) VAL [isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-1, var_1_8=32, var_1_9=-16] [L113] var_1_7 = __VERIFIER_nondet_long() [L114] CALL assume_abort_if_not(var_1_7 >= -2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=-16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=-16] [L114] RET assume_abort_if_not(var_1_7 >= -2147483647) VAL [isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=-16] [L115] CALL assume_abort_if_not(var_1_7 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=-16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=-16] [L115] RET assume_abort_if_not(var_1_7 <= 2147483646) VAL [isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=-16] [L116] var_1_9 = __VERIFIER_nondet_long() [L117] CALL assume_abort_if_not(var_1_9 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L117] RET assume_abort_if_not(var_1_9 >= -2147483648) VAL [isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L118] CALL assume_abort_if_not(var_1_9 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L118] RET assume_abort_if_not(var_1_9 <= 2147483647) VAL [isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L119] CALL assume_abort_if_not(var_1_9 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L119] RET assume_abort_if_not(var_1_9 != 0) VAL [isInitial=1, var_1_10=5, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L120] var_1_10 = __VERIFIER_nondet_ushort() [L121] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L121] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L122] CALL assume_abort_if_not(var_1_10 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L122] RET assume_abort_if_not(var_1_10 <= 65534) VAL [isInitial=1, var_1_10=32, var_1_11=128, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L123] var_1_11 = __VERIFIER_nondet_ushort() [L124] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L124] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=32, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L125] CALL assume_abort_if_not(var_1_11 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L125] RET assume_abort_if_not(var_1_11 <= 65534) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L126] var_1_13 = __VERIFIER_nondet_uchar() [L127] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L127] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L128] CALL assume_abort_if_not(var_1_13 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L128] RET assume_abort_if_not(var_1_13 <= 254) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L129] var_1_15 = __VERIFIER_nondet_uchar() [L130] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L130] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L131] CALL assume_abort_if_not(var_1_15 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L131] RET assume_abort_if_not(var_1_15 <= 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_17=17/2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L132] var_1_17 = __VERIFIER_nondet_double() [L133] CALL assume_abort_if_not((var_1_17 >= -922337.2036854765600e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L133] RET assume_abort_if_not((var_1_17 >= -922337.2036854765600e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L146] RET updateVariables() [L147] CALL step() [L43] COND FALSE !(var_1_2 != var_1_3) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L48] signed long int stepLocal_1 = var_1_5 / var_1_9; [L49] signed long int stepLocal_0 = var_1_2 * 256; VAL [isInitial=1, stepLocal_0=8192, stepLocal_1=0, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L50] COND FALSE !(var_1_6 >= stepLocal_1) [L57] var_1_8 = var_1_10 VAL [isInitial=1, stepLocal_0=8192, stepLocal_1=0, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L59] COND FALSE !(var_1_10 < var_1_1) VAL [isInitial=1, stepLocal_0=8192, stepLocal_1=0, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L70] unsigned char stepLocal_2 = var_1_12; VAL [isInitial=1, stepLocal_0=8192, stepLocal_1=0, stepLocal_2=32, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L71] COND FALSE !(stepLocal_2 > (((((var_1_3) < (var_1_8)) ? (var_1_3) : (var_1_8))) + var_1_10)) VAL [isInitial=1, stepLocal_0=8192, stepLocal_1=0, stepLocal_2=32, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L82] COND FALSE !(\read(var_1_14)) VAL [isInitial=1, stepLocal_0=8192, stepLocal_1=0, stepLocal_2=32, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=255/4, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L89] COND FALSE !(\read(var_1_4)) [L92] var_1_16 = var_1_17 VAL [isInitial=1, stepLocal_0=8192, stepLocal_1=0, stepLocal_2=32, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2, var_1_17=2, var_1_18=-64, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L95] var_1_18 = var_1_12 [L147] RET step() [L148] CALL, EXPR property() [L138-L139] return ((((((var_1_2 != var_1_3) ? (var_1_4 ? (var_1_1 == ((signed long int) ((((((((-5) > (var_1_5)) ? (-5) : (var_1_5)))) < (((((var_1_6) < (var_1_7)) ? (var_1_6) : (var_1_7))))) ? (((((-5) > (var_1_5)) ? (-5) : (var_1_5)))) : (((((var_1_6) < (var_1_7)) ? (var_1_6) : (var_1_7)))))))) : 1) : 1) && ((var_1_6 >= (var_1_5 / var_1_9)) ? ((var_1_3 < (var_1_2 * 256)) ? (var_1_8 == ((unsigned short int) ((((var_1_10) < (((((128) < (var_1_11)) ? (128) : (var_1_11))))) ? (var_1_10) : (((((128) < (var_1_11)) ? (128) : (var_1_11)))))))) : (var_1_8 == ((unsigned short int) var_1_11))) : (var_1_8 == ((unsigned short int) var_1_10)))) && ((var_1_10 < var_1_1) ? ((var_1_3 <= (5 - var_1_8)) ? (var_1_12 == ((unsigned char) var_1_13)) : ((var_1_3 == var_1_6) ? (var_1_12 == ((unsigned char) var_1_13)) : (var_1_12 == ((unsigned char) var_1_13)))) : 1)) && ((var_1_12 > (((((var_1_3) < (var_1_8)) ? (var_1_3) : (var_1_8))) + var_1_10)) ? ((! (var_1_8 >= var_1_5)) ? (var_1_4 ? (var_1_14 == ((unsigned char) 0)) : (var_1_14 == ((unsigned char) var_1_15))) : (var_1_14 == ((unsigned char) var_1_15))) : 1)) && (var_1_14 ? (var_1_15 ? (var_1_16 == ((double) var_1_17)) : (var_1_16 == ((double) (((((((((25.8) > (7.5)) ? (25.8) : (7.5))) - 50.25)) > (var_1_17)) ? ((((((25.8) > (7.5)) ? (25.8) : (7.5))) - 50.25)) : (var_1_17)))))) : (var_1_4 ? (var_1_16 == ((double) 5.2)) : (var_1_16 == ((double) var_1_17))))) && (var_1_18 == ((signed short int) var_1_12)) ; [L148] RET, EXPR property() [L148] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2, var_1_17=2, var_1_18=32, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2, var_1_17=2, var_1_18=32, var_1_1=32, var_1_2=32, var_1_3=32, var_1_4=0, var_1_5=-1, var_1_6=-1, var_1_7=-2147483647, var_1_8=32, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 4, TraceHistogramMax: 24, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 140 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 119 mSDsluCounter, 424 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 170 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 154 IncrementalHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 254 mSDtfsCounter, 154 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 580 GetRequests, 569 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=3, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 725 NumberOfCodeBlocks, 725 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 576 ConstructedInterpolants, 0 QuantifiedInterpolants, 998 SizeOfPredicates, 2 NumberOfNonLiveVariables, 979 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 4410/4416 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 10:50:17,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/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_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-89.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/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_362fdd9a-7832-4d9b-935e-24c07d495c7c/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 0e5b25db77af6087a8d68144f29b6dbfffc93c4c0b7ce6d33c40c5bcadf93148 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:50:20,150 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:50:20,296 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 10:50:20,305 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:50:20,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:50:20,359 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:50:20,360 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:50:20,361 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:50:20,362 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:50:20,367 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:50:20,367 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:50:20,368 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:50:20,369 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:50:20,369 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:50:20,370 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:50:20,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:50:20,371 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:50:20,371 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:50:20,372 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:50:20,373 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:50:20,373 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:50:20,374 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:50:20,374 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:50:20,375 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 10:50:20,375 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 10:50:20,376 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 10:50:20,376 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:50:20,377 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:50:20,377 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:50:20,378 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:50:20,379 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:50:20,380 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:50:20,380 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:50:20,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:50:20,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:50:20,381 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:50:20,382 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:50:20,383 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 10:50:20,383 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 10:50:20,383 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:50:20,383 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:50:20,384 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:50:20,384 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:50:20,384 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:50:20,385 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 10:50:20,385 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_362fdd9a-7832-4d9b-935e-24c07d495c7c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e5b25db77af6087a8d68144f29b6dbfffc93c4c0b7ce6d33c40c5bcadf93148 [2023-11-26 10:50:20,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:50:20,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:50:20,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:50:20,838 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:50:20,838 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:50:20,841 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-89.i [2023-11-26 10:50:24,023 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:50:24,397 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:50:24,398 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-89.i [2023-11-26 10:50:24,409 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/data/480c2f231/91d9cb323e0d43e0b5dc5ee29d8ba20a/FLAG7f0a49dc3 [2023-11-26 10:50:24,441 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/data/480c2f231/91d9cb323e0d43e0b5dc5ee29d8ba20a [2023-11-26 10:50:24,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:50:24,449 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:50:24,452 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:50:24,452 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:50:24,459 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:50:24,460 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:50:24" (1/1) ... [2023-11-26 10:50:24,462 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b3bc73a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:24, skipping insertion in model container [2023-11-26 10:50:24,462 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:50:24" (1/1) ... [2023-11-26 10:50:24,516 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:50:24,737 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_362fdd9a-7832-4d9b-935e-24c07d495c7c/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-89.i[917,930] [2023-11-26 10:50:24,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:50:24,866 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:50:24,884 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_362fdd9a-7832-4d9b-935e-24c07d495c7c/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-89.i[917,930] [2023-11-26 10:50:24,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:50:24,938 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:50:24,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:24 WrapperNode [2023-11-26 10:50:24,939 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:50:24,940 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:50:24,941 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:50:24,941 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:50:24,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:24" (1/1) ... [2023-11-26 10:50:24,978 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:24" (1/1) ... [2023-11-26 10:50:25,023 INFO L138 Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 143 [2023-11-26 10:50:25,024 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:50:25,024 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:50:25,024 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:50:25,025 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:50:25,037 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:24" (1/1) ... [2023-11-26 10:50:25,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:24" (1/1) ... [2023-11-26 10:50:25,045 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:24" (1/1) ... [2023-11-26 10:50:25,064 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 10:50:25,070 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:24" (1/1) ... [2023-11-26 10:50:25,070 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:24" (1/1) ... [2023-11-26 10:50:25,093 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:24" (1/1) ... [2023-11-26 10:50:25,108 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:24" (1/1) ... [2023-11-26 10:50:25,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:24" (1/1) ... [2023-11-26 10:50:25,113 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:24" (1/1) ... [2023-11-26 10:50:25,117 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:50:25,122 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:50:25,123 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:50:25,123 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:50:25,124 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:24" (1/1) ... [2023-11-26 10:50:25,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:50:25,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:50:25,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:50:25,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:50:25,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:50:25,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 10:50:25,198 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 10:50:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 10:50:25,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:50:25,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:50:25,294 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:50:25,297 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:50:26,236 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:50:26,291 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:50:26,291 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:50:26,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:50:26 BoogieIcfgContainer [2023-11-26 10:50:26,292 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:50:26,294 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:50:26,294 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:50:26,298 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:50:26,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:50:24" (1/3) ... [2023-11-26 10:50:26,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aaeca66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:50:26, skipping insertion in model container [2023-11-26 10:50:26,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:24" (2/3) ... [2023-11-26 10:50:26,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aaeca66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:50:26, skipping insertion in model container [2023-11-26 10:50:26,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:50:26" (3/3) ... [2023-11-26 10:50:26,301 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-89.i [2023-11-26 10:50:26,324 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:50:26,324 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:50:26,377 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:50:26,385 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;@26289f41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:50:26,386 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:50:26,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 37 states have (on average 1.4864864864864864) internal successors, (55), 38 states have internal predecessors, (55), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 10:50:26,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-26 10:50:26,414 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:50:26,415 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:50:26,415 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:50:26,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:26,423 INFO L85 PathProgramCache]: Analyzing trace with hash 749126443, now seen corresponding path program 1 times [2023-11-26 10:50:26,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:50:26,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362976246] [2023-11-26 10:50:26,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:26,448 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 10:50:26,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:50:26,455 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/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 10:50:26,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/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 10:50:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:26,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 10:50:26,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:50:26,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 574 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2023-11-26 10:50:26,977 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:50:26,978 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:50:26,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362976246] [2023-11-26 10:50:26,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362976246] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:26,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:26,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:50:26,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870479144] [2023-11-26 10:50:26,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:26,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:50:26,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:50:27,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:50:27,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:50:27,034 INFO L87 Difference]: Start difference. First operand has 64 states, 37 states have (on average 1.4864864864864864) internal successors, (55), 38 states have internal predecessors, (55), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-26 10:50:27,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:50:27,237 INFO L93 Difference]: Finished difference Result 125 states and 228 transitions. [2023-11-26 10:50:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:50:27,248 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 145 [2023-11-26 10:50:27,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:50:27,257 INFO L225 Difference]: With dead ends: 125 [2023-11-26 10:50:27,257 INFO L226 Difference]: Without dead ends: 62 [2023-11-26 10:50:27,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 144 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 10:50:27,289 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:50:27,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:50:27,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-26 10:50:27,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-11-26 10:50:27,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 36 states have internal predecessors, (50), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 10:50:27,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 98 transitions. [2023-11-26 10:50:27,366 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 98 transitions. Word has length 145 [2023-11-26 10:50:27,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:50:27,367 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 98 transitions. [2023-11-26 10:50:27,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-26 10:50:27,368 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 98 transitions. [2023-11-26 10:50:27,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-26 10:50:27,383 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:50:27,384 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:50:27,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-26 10:50:27,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/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 10:50:27,592 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:50:27,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:27,593 INFO L85 PathProgramCache]: Analyzing trace with hash 822949487, now seen corresponding path program 1 times [2023-11-26 10:50:27,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:50:27,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2089474175] [2023-11-26 10:50:27,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:27,594 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 10:50:27,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:50:27,624 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/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 10:50:27,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/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 10:50:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:27,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:50:27,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:50:28,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-26 10:50:28,443 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:50:28,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:50:28,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2089474175] [2023-11-26 10:50:28,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2089474175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:28,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:28,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:50:28,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100605852] [2023-11-26 10:50:28,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:28,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:50:28,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:50:28,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:50:28,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:50:28,448 INFO L87 Difference]: Start difference. First operand 62 states and 98 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-26 10:50:28,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:50:28,726 INFO L93 Difference]: Finished difference Result 182 states and 288 transitions. [2023-11-26 10:50:28,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:50:28,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 145 [2023-11-26 10:50:28,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:50:28,731 INFO L225 Difference]: With dead ends: 182 [2023-11-26 10:50:28,731 INFO L226 Difference]: Without dead ends: 121 [2023-11-26 10:50:28,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 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 10:50:28,734 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 21 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:50:28,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 182 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 10:50:28,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-26 10:50:28,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 117. [2023-11-26 10:50:28,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 66 states have (on average 1.3484848484848484) internal successors, (89), 66 states have internal predecessors, (89), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-26 10:50:28,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 185 transitions. [2023-11-26 10:50:28,773 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 185 transitions. Word has length 145 [2023-11-26 10:50:28,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:50:28,774 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 185 transitions. [2023-11-26 10:50:28,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-26 10:50:28,775 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 185 transitions. [2023-11-26 10:50:28,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-26 10:50:28,777 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:50:28,777 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:50:28,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/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 10:50:28,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/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 10:50:28,986 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:50:28,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:28,986 INFO L85 PathProgramCache]: Analyzing trace with hash 830635565, now seen corresponding path program 1 times [2023-11-26 10:50:28,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:50:28,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487568749] [2023-11-26 10:50:28,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:28,988 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 10:50:28,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:50:28,990 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/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 10:50:28,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362fdd9a-7832-4d9b-935e-24c07d495c7c/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 10:50:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:29,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-26 10:50:29,510 INFO L285 TraceCheckSpWp]: Computing forward predicates...