./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-90.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/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_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-90.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/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_51c75e37-2c0c-4d83-b285-30cc2452d856/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 ea7df308032d06b1304a4a33893d142fbc642677e172fa30f17dc86e231db193 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:42:51,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:42:51,599 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 10:42:51,614 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:42:51,616 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:42:51,663 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:42:51,664 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:42:51,664 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:42:51,665 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:42:51,671 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:42:51,671 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:42:51,672 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:42:51,673 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:42:51,675 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:42:51,675 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:42:51,676 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:42:51,685 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:42:51,685 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:42:51,686 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:42:51,686 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:42:51,687 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:42:51,687 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:42:51,688 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:42:51,688 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:42:51,689 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:42:51,689 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:42:51,690 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:42:51,702 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:42:51,703 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:42:51,703 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:42:51,705 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:42:51,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:42:51,706 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:42:51,706 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:42:51,706 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:42:51,707 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:42:51,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:42:51,707 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:42:51,707 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:42:51,708 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:42:51,708 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:42:51,708 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:42:51,709 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_51c75e37-2c0c-4d83-b285-30cc2452d856/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea7df308032d06b1304a4a33893d142fbc642677e172fa30f17dc86e231db193 [2023-11-26 10:42:52,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:42:52,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:42:52,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:42:52,136 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:42:52,136 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:42:52,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-90.i [2023-11-26 10:42:55,319 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:42:55,595 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:42:55,597 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-90.i [2023-11-26 10:42:55,611 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/data/36352a378/7b4360aa34274295bd4e2c2a766f70a6/FLAG068623707 [2023-11-26 10:42:55,627 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/data/36352a378/7b4360aa34274295bd4e2c2a766f70a6 [2023-11-26 10:42:55,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:42:55,632 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:42:55,633 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:55,633 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:42:55,640 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:42:55,640 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:55" (1/1) ... [2023-11-26 10:42:55,642 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65d228b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:55, skipping insertion in model container [2023-11-26 10:42:55,642 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:55" (1/1) ... [2023-11-26 10:42:55,686 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:42:55,841 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-90.i[915,928] [2023-11-26 10:42:55,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:55,911 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:42:55,924 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_51c75e37-2c0c-4d83-b285-30cc2452d856/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-90.i[915,928] [2023-11-26 10:42:55,955 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:55,974 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:42:55,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:55 WrapperNode [2023-11-26 10:42:55,975 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:55,976 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:55,976 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:42:55,976 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:42:55,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:55" (1/1) ... [2023-11-26 10:42:55,995 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:55" (1/1) ... [2023-11-26 10:42:56,034 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 149 [2023-11-26 10:42:56,044 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:56,045 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:42:56,046 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:42:56,046 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:42:56,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:55" (1/1) ... [2023-11-26 10:42:56,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:55" (1/1) ... [2023-11-26 10:42:56,063 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:55" (1/1) ... [2023-11-26 10:42:56,113 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 10:42:56,113 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:55" (1/1) ... [2023-11-26 10:42:56,113 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:55" (1/1) ... [2023-11-26 10:42:56,166 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:55" (1/1) ... [2023-11-26 10:42:56,170 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:55" (1/1) ... [2023-11-26 10:42:56,172 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:55" (1/1) ... [2023-11-26 10:42:56,175 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:55" (1/1) ... [2023-11-26 10:42:56,178 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:42:56,180 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:42:56,180 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:42:56,180 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:42:56,181 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:55" (1/1) ... [2023-11-26 10:42:56,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:42:56,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:56,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:56,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:42:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:42:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 10:42:56,294 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 10:42:56,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:42:56,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:42:56,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:42:56,389 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:42:56,392 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:42:56,803 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:42:56,899 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:42:56,899 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:42:56,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:56 BoogieIcfgContainer [2023-11-26 10:42:56,900 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:42:56,904 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:42:56,904 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:42:56,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:42:56,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:42:55" (1/3) ... [2023-11-26 10:42:56,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44667255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:42:56, skipping insertion in model container [2023-11-26 10:42:56,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:55" (2/3) ... [2023-11-26 10:42:56,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44667255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:42:56, skipping insertion in model container [2023-11-26 10:42:56,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:56" (3/3) ... [2023-11-26 10:42:56,913 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-90.i [2023-11-26 10:42:56,947 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:42:56,947 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:42:57,016 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:42:57,024 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;@2bd42635, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:42:57,024 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:42:57,029 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 36 states have (on average 1.5555555555555556) internal successors, (56), 37 states have internal predecessors, (56), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-26 10:42:57,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-26 10:42:57,045 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:57,046 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:42:57,047 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:42:57,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:57,053 INFO L85 PathProgramCache]: Analyzing trace with hash 645358691, now seen corresponding path program 1 times [2023-11-26 10:42:57,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:57,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438039514] [2023-11-26 10:42:57,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:57,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:57,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:57,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438039514] [2023-11-26 10:42:57,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-26 10:42:57,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510773015] [2023-11-26 10:42:57,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:57,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:57,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:57,393 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:57,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:42:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:57,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 10:42:57,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:57,695 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2023-11-26 10:42:57,696 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:42:57,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510773015] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:57,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:57,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:42:57,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055667312] [2023-11-26 10:42:57,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:57,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:42:57,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:57,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:42:57,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:42:57,737 INFO L87 Difference]: Start difference. First operand has 57 states, 36 states have (on average 1.5555555555555556) internal successors, (56), 37 states have internal predecessors, (56), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-26 10:42:57,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:57,789 INFO L93 Difference]: Finished difference Result 111 states and 200 transitions. [2023-11-26 10:42:57,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:42:57,792 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 114 [2023-11-26 10:42:57,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:57,803 INFO L225 Difference]: With dead ends: 111 [2023-11-26 10:42:57,803 INFO L226 Difference]: Without dead ends: 55 [2023-11-26 10:42:57,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 113 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 10:42:57,814 INFO L413 NwaCegarLoop]: 84 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, 84 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 10:42:57,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:57,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-26 10:42:57,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-11-26 10:42:57,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 35 states have (on average 1.457142857142857) internal successors, (51), 35 states have internal predecessors, (51), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-26 10:42:57,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 87 transitions. [2023-11-26 10:42:57,878 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 87 transitions. Word has length 114 [2023-11-26 10:42:57,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:57,878 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 87 transitions. [2023-11-26 10:42:57,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-26 10:42:57,879 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 87 transitions. [2023-11-26 10:42:57,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-26 10:42:57,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:57,883 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:42:57,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:58,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:58,093 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:42:58,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:58,094 INFO L85 PathProgramCache]: Analyzing trace with hash 947936411, now seen corresponding path program 1 times [2023-11-26 10:42:58,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:58,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735996193] [2023-11-26 10:42:58,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:58,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:58,159 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:42:58,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [739200942] [2023-11-26 10:42:58,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:58,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:58,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:58,161 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:58,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 10:42:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:58,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-26 10:42:58,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:58,994 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 383 proven. 48 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2023-11-26 10:42:58,994 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:59,441 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 48 proven. 51 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2023-11-26 10:42:59,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:59,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735996193] [2023-11-26 10:42:59,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:42:59,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739200942] [2023-11-26 10:42:59,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739200942] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:59,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 10:42:59,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-26 10:42:59,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171346057] [2023-11-26 10:42:59,445 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:59,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 10:42:59,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:59,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 10:42:59,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2023-11-26 10:42:59,454 INFO L87 Difference]: Start difference. First operand 55 states and 87 transitions. Second operand has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 5 states have call successors, (28), 3 states have call predecessors, (28), 7 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-26 10:42:59,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:59,841 INFO L93 Difference]: Finished difference Result 123 states and 185 transitions. [2023-11-26 10:42:59,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 10:42:59,842 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 5 states have call successors, (28), 3 states have call predecessors, (28), 7 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 114 [2023-11-26 10:42:59,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:59,845 INFO L225 Difference]: With dead ends: 123 [2023-11-26 10:42:59,845 INFO L226 Difference]: Without dead ends: 69 [2023-11-26 10:42:59,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=243, Unknown=0, NotChecked=0, Total=380 [2023-11-26 10:42:59,848 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 87 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:59,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 182 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 10:42:59,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-26 10:42:59,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 63. [2023-11-26 10:42:59,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 41 states have internal predecessors, (56), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-26 10:42:59,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 92 transitions. [2023-11-26 10:42:59,868 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 92 transitions. Word has length 114 [2023-11-26 10:42:59,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:59,869 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 92 transitions. [2023-11-26 10:42:59,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 5 states have call successors, (28), 3 states have call predecessors, (28), 7 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-26 10:42:59,870 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 92 transitions. [2023-11-26 10:42:59,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-26 10:42:59,873 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:59,873 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:42:59,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:43:00,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-26 10:43:00,079 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:43:00,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:00,080 INFO L85 PathProgramCache]: Analyzing trace with hash 554909401, now seen corresponding path program 1 times [2023-11-26 10:43:00,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:00,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086524718] [2023-11-26 10:43:00,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:00,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:00,156 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:43:00,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [939823558] [2023-11-26 10:43:00,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:00,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:43:00,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:43:00,175 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:43:00,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 10:43:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:00,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 10:43:00,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:43:00,860 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-26 10:43:00,861 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:43:00,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:00,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086524718] [2023-11-26 10:43:00,862 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:43:00,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939823558] [2023-11-26 10:43:00,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939823558] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:00,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:00,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:43:00,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146360938] [2023-11-26 10:43:00,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:00,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:43:00,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:00,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:43:00,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:43:00,868 INFO L87 Difference]: Start difference. First operand 63 states and 92 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-26 10:43:01,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:01,082 INFO L93 Difference]: Finished difference Result 188 states and 275 transitions. [2023-11-26 10:43:01,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:43:01,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114 [2023-11-26 10:43:01,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:01,087 INFO L225 Difference]: With dead ends: 188 [2023-11-26 10:43:01,087 INFO L226 Difference]: Without dead ends: 126 [2023-11-26 10:43:01,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:43:01,090 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 48 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:01,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 228 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:43:01,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-26 10:43:01,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 120. [2023-11-26 10:43:01,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 77 states have (on average 1.3246753246753247) internal successors, (102), 77 states have internal predecessors, (102), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-26 10:43:01,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 174 transitions. [2023-11-26 10:43:01,132 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 174 transitions. Word has length 114 [2023-11-26 10:43:01,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:01,133 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 174 transitions. [2023-11-26 10:43:01,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-26 10:43:01,134 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 174 transitions. [2023-11-26 10:43:01,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-26 10:43:01,136 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:01,137 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:43:01,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 10:43:01,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-26 10:43:01,343 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:43:01,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:01,344 INFO L85 PathProgramCache]: Analyzing trace with hash 157501557, now seen corresponding path program 1 times [2023-11-26 10:43:01,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:01,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810488754] [2023-11-26 10:43:01,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:01,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:01,421 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:43:01,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124513721] [2023-11-26 10:43:01,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:01,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:43:01,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:43:01,431 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:43:01,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 10:43:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:03,885 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:43:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:04,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:43:04,002 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:43:04,003 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 10:43:04,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 10:43:04,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:43:04,210 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-26 10:43:04,214 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:43:04,298 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-26 10:43:04,302 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-26 10:43:04,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:43:04 BoogieIcfgContainer [2023-11-26 10:43:04,324 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:43:04,325 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:43:04,325 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:43:04,325 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:43:04,326 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:56" (3/4) ... [2023-11-26 10:43:04,328 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:43:04,329 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:43:04,330 INFO L158 Benchmark]: Toolchain (without parser) took 8698.41ms. Allocated memory was 130.0MB in the beginning and 209.7MB in the end (delta: 79.7MB). Free memory was 100.3MB in the beginning and 117.7MB in the end (delta: -17.5MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. [2023-11-26 10:43:04,330 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory is still 102.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:43:04,331 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.03ms. Allocated memory was 130.0MB in the beginning and 174.1MB in the end (delta: 44.0MB). Free memory was 100.1MB in the beginning and 135.7MB in the end (delta: -35.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 10:43:04,331 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.86ms. Allocated memory is still 174.1MB. Free memory was 135.7MB in the beginning and 132.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:43:04,332 INFO L158 Benchmark]: Boogie Preprocessor took 133.42ms. Allocated memory is still 174.1MB. Free memory was 132.7MB in the beginning and 144.4MB in the end (delta: -11.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:43:04,332 INFO L158 Benchmark]: RCFGBuilder took 720.36ms. Allocated memory is still 174.1MB. Free memory was 144.4MB in the beginning and 122.5MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-26 10:43:04,333 INFO L158 Benchmark]: TraceAbstraction took 7420.21ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 122.3MB in the beginning and 117.7MB in the end (delta: 4.5MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2023-11-26 10:43:04,333 INFO L158 Benchmark]: Witness Printer took 4.47ms. Allocated memory is still 209.7MB. Free memory was 117.7MB in the beginning and 117.7MB in the end (delta: 2.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:43:04,336 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory is still 102.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.03ms. Allocated memory was 130.0MB in the beginning and 174.1MB in the end (delta: 44.0MB). Free memory was 100.1MB in the beginning and 135.7MB in the end (delta: -35.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.86ms. Allocated memory is still 174.1MB. Free memory was 135.7MB in the beginning and 132.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 133.42ms. Allocated memory is still 174.1MB. Free memory was 132.7MB in the beginning and 144.4MB in the end (delta: -11.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 720.36ms. Allocated memory is still 174.1MB. Free memory was 144.4MB in the beginning and 122.5MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 7420.21ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 122.3MB in the beginning and 117.7MB in the end (delta: 4.5MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. * Witness Printer took 4.47ms. Allocated memory is still 209.7MB. Free memory was 117.7MB in the beginning and 117.7MB in the end (delta: 2.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 128, overapproximation of bitwiseOr at line 128. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -32; [L23] signed long int var_1_3 = 10; [L24] signed long int var_1_4 = 64; [L25] unsigned short int var_1_11 = 64; [L26] unsigned short int var_1_12 = 8; [L27] unsigned short int var_1_13 = 5; [L28] signed short int var_1_14 = 8; [L29] unsigned short int var_1_15 = 62763; [L30] unsigned long int var_1_16 = 25; [L31] float var_1_18 = 63.25; [L32] unsigned char var_1_20 = 0; [L33] float var_1_21 = 7.8; [L34] float var_1_22 = 32.1; [L35] unsigned char var_1_23 = 0; [L36] signed long int var_1_24 = -16; [L37] signed long int last_1_var_1_1 = -32; [L38] unsigned short int last_1_var_1_11 = 64; [L39] signed short int last_1_var_1_14 = 8; [L40] unsigned long int last_1_var_1_16 = 25; [L41] float last_1_var_1_18 = 63.25; [L132] isInitial = 1 [L133] FCALL initially() [L134] COND TRUE 1 [L135] CALL updateLastVariables() [L121] last_1_var_1_1 = var_1_1 [L122] last_1_var_1_11 = var_1_11 [L123] last_1_var_1_14 = var_1_14 [L124] last_1_var_1_16 = var_1_16 [L125] last_1_var_1_18 = var_1_18 [L135] RET updateLastVariables() [L136] CALL updateVariables() [L92] var_1_3 = __VERIFIER_nondet_long() [L93] CALL assume_abort_if_not(var_1_3 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=64] [L93] RET assume_abort_if_not(var_1_3 >= -2147483648) VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=64] [L94] CALL assume_abort_if_not(var_1_3 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=64] [L94] RET assume_abort_if_not(var_1_3 <= 2147483647) VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=64] [L95] CALL assume_abort_if_not(var_1_3 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=64] [L95] RET assume_abort_if_not(var_1_3 != 0) VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=64] [L96] var_1_4 = __VERIFIER_nondet_long() [L97] CALL assume_abort_if_not(var_1_4 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L97] RET assume_abort_if_not(var_1_4 >= -2147483648) VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L98] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L98] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L99] CALL assume_abort_if_not(var_1_4 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L99] RET assume_abort_if_not(var_1_4 != 0) VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L100] var_1_12 = __VERIFIER_nondet_ushort() [L101] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L101] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L102] CALL assume_abort_if_not(var_1_12 <= 16384) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L102] RET assume_abort_if_not(var_1_12 <= 16384) VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=5, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L103] var_1_13 = __VERIFIER_nondet_ushort() [L104] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L104] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L105] CALL assume_abort_if_not(var_1_13 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L105] RET assume_abort_if_not(var_1_13 <= 16383) VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=62763, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L106] var_1_15 = __VERIFIER_nondet_ushort() [L107] CALL assume_abort_if_not(var_1_15 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L107] RET assume_abort_if_not(var_1_15 >= 32767) VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L108] CALL assume_abort_if_not(var_1_15 <= 65535) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L108] RET assume_abort_if_not(var_1_15 <= 65535) VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=0, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L109] var_1_20 = __VERIFIER_nondet_uchar() [L110] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L110] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L111] CALL assume_abort_if_not(var_1_20 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=1, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=1, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L111] RET assume_abort_if_not(var_1_20 <= 1) VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=1, var_1_21=39/5, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L112] var_1_21 = __VERIFIER_nondet_float() [L113] CALL assume_abort_if_not((var_1_21 >= -461168.6018427382800e+13F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 4611686.018427382800e+12F && var_1_21 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=1, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=1, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L113] RET assume_abort_if_not((var_1_21 >= -461168.6018427382800e+13F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 4611686.018427382800e+12F && var_1_21 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=1, var_1_22=321/10, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L114] var_1_22 = __VERIFIER_nondet_float() [L115] CALL assume_abort_if_not((var_1_22 >= -461168.6018427382800e+13F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 4611686.018427382800e+12F && var_1_22 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=1, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=1, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L115] RET assume_abort_if_not((var_1_22 >= -461168.6018427382800e+13F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 4611686.018427382800e+12F && var_1_22 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=1, var_1_23=0, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L116] var_1_23 = __VERIFIER_nondet_uchar() [L117] CALL assume_abort_if_not(var_1_23 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=1, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=1, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L117] RET assume_abort_if_not(var_1_23 >= 0) VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=1, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L118] CALL assume_abort_if_not(var_1_23 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=1, var_1_23=1, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=1, var_1_23=1, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L118] RET assume_abort_if_not(var_1_23 <= 1) VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=1, var_1_23=1, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L136] RET updateVariables() [L137] CALL step() [L45] EXPR last_1_var_1_1 | last_1_var_1_16 VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=-32, var_1_20=1, var_1_23=1, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L45] COND FALSE !((last_1_var_1_14 / ((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) <= (last_1_var_1_1 | last_1_var_1_16)) [L52] var_1_1 = last_1_var_1_11 VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=64, var_1_20=1, var_1_23=1, var_1_24=-16, var_1_3=-3, var_1_4=-2] [L54] COND FALSE !((- (- last_1_var_1_18)) != last_1_var_1_18) [L61] var_1_24 = last_1_var_1_14 VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=64, var_1_20=1, var_1_23=1, var_1_24=8, var_1_3=-3, var_1_4=-2] [L63] COND FALSE !(((var_1_15 - var_1_12) + var_1_24) < var_1_24) VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=64, var_1_20=1, var_1_23=1, var_1_24=8, var_1_3=-3, var_1_4=-2] [L66] unsigned short int stepLocal_0 = var_1_13; VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, stepLocal_0=8, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=253/4, var_1_1=64, var_1_20=1, var_1_23=1, var_1_24=8, var_1_3=-3, var_1_4=-2] [L67] COND FALSE !(var_1_24 < stepLocal_0) [L78] var_1_18 = var_1_21 VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, stepLocal_0=8, var_1_11=64, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=2, var_1_1=64, var_1_20=1, var_1_21=2, var_1_23=1, var_1_24=8, var_1_3=-3, var_1_4=-2] [L80] COND TRUE var_1_18 != (var_1_18 + var_1_18) [L81] var_1_11 = ((var_1_12 + var_1_13) + 32) VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, stepLocal_0=8, var_1_11=48, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=25, var_1_18=2, var_1_1=64, var_1_20=1, var_1_21=2, var_1_23=1, var_1_24=8, var_1_3=-3, var_1_4=-2] [L83] COND FALSE !(((var_1_1 * var_1_4) + var_1_1) > var_1_1) [L88] var_1_16 = 0u VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, stepLocal_0=8, var_1_11=48, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=0, var_1_18=2, var_1_1=64, var_1_20=1, var_1_21=2, var_1_23=1, var_1_24=8, var_1_3=-3, var_1_4=-2] [L137] RET step() [L138] CALL, EXPR property() [L128] EXPR last_1_var_1_1 | last_1_var_1_16 VAL [isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=48, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=0, var_1_18=2, var_1_1=64, var_1_20=1, var_1_21=2, var_1_23=1, var_1_24=8, var_1_3=-3, var_1_4=-2] [L128-L129] return (((((((last_1_var_1_14 / ((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) <= (last_1_var_1_1 | last_1_var_1_16)) ? (((last_1_var_1_18 * last_1_var_1_18) < last_1_var_1_18) ? (var_1_1 == ((signed long int) last_1_var_1_11)) : (var_1_1 == ((signed long int) last_1_var_1_11))) : (var_1_1 == ((signed long int) last_1_var_1_11))) && ((var_1_18 != (var_1_18 + var_1_18)) ? (var_1_11 == ((unsigned short int) ((var_1_12 + var_1_13) + 32))) : 1)) && ((((var_1_15 - var_1_12) + var_1_24) < var_1_24) ? (var_1_14 == ((signed short int) var_1_12)) : 1)) && ((((var_1_1 * var_1_4) + var_1_1) > var_1_1) ? ((var_1_14 < var_1_1) ? (var_1_16 == ((unsigned long int) var_1_12)) : 1) : (var_1_16 == ((unsigned long int) 0u)))) && ((var_1_24 < var_1_13) ? (var_1_20 ? (var_1_18 == ((float) (((((var_1_21) < 0 ) ? -(var_1_21) : (var_1_21))) + var_1_22))) : (var_1_23 ? (var_1_18 == ((float) (var_1_22 + var_1_21))) : (var_1_18 == ((float) -0.75f)))) : (var_1_18 == ((float) var_1_21)))) && (((- (- last_1_var_1_18)) != last_1_var_1_18) ? ((var_1_12 <= ((((last_1_var_1_14) > ((- last_1_var_1_14))) ? (last_1_var_1_14) : ((- last_1_var_1_14))))) ? (var_1_24 == ((signed long int) -50)) : (var_1_24 == ((signed long int) last_1_var_1_14))) : (var_1_24 == ((signed long int) last_1_var_1_14))) ; [L138] RET, EXPR property() [L138] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=48, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=0, var_1_18=2, var_1_1=64, var_1_20=1, var_1_21=2, var_1_23=1, var_1_24=8, var_1_3=-3, var_1_4=-2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=64, last_1_var_1_14=8, last_1_var_1_16=25, last_1_var_1_18=253/4, last_1_var_1_1=-32, var_1_11=48, var_1_12=8, var_1_13=8, var_1_14=8, var_1_15=32767, var_1_16=0, var_1_18=2, var_1_1=64, var_1_20=1, var_1_21=2, var_1_23=1, var_1_24=8, var_1_3=-3, var_1_4=-2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.2s, OverallIterations: 4, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 143 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 135 mSDsluCounter, 494 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 272 mSDsCounter, 67 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 235 IncrementalHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 67 mSolverCounterUnsat, 222 mSDtfsCounter, 235 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 459 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=3, InterpolantAutomatonStates: 21, 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, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 572 NumberOfCodeBlocks, 572 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 452 ConstructedInterpolants, 0 QuantifiedInterpolants, 1993 SizeOfPredicates, 7 NumberOfNonLiveVariables, 859 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2349/2448 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 10:43:04,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/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_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-90.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/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_51c75e37-2c0c-4d83-b285-30cc2452d856/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 ea7df308032d06b1304a4a33893d142fbc642677e172fa30f17dc86e231db193 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:43:07,211 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:43:07,332 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 10:43:07,339 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:43:07,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:43:07,390 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:43:07,390 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:43:07,391 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:43:07,392 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:43:07,397 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:43:07,398 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:43:07,398 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:43:07,399 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:43:07,401 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:43:07,401 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:43:07,402 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:43:07,402 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:43:07,403 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:43:07,403 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:43:07,404 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:43:07,405 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:43:07,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:43:07,406 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:43:07,406 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 10:43:07,406 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 10:43:07,407 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 10:43:07,407 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:43:07,408 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:43:07,408 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:43:07,408 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:43:07,410 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:43:07,410 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:43:07,410 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:43:07,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:43:07,411 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:43:07,411 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:43:07,412 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:43:07,412 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 10:43:07,412 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 10:43:07,413 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:43:07,413 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:43:07,413 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:43:07,413 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:43:07,413 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:43:07,414 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 10:43:07,414 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_51c75e37-2c0c-4d83-b285-30cc2452d856/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea7df308032d06b1304a4a33893d142fbc642677e172fa30f17dc86e231db193 [2023-11-26 10:43:07,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:43:07,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:43:07,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:43:07,920 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:43:07,921 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:43:07,923 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-90.i [2023-11-26 10:43:11,135 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:43:11,458 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:43:11,458 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-90.i [2023-11-26 10:43:11,472 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/data/e517c8ca1/f6c5f555484642cdb1bdf16e184d67f8/FLAGca67fdf0f [2023-11-26 10:43:11,493 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/data/e517c8ca1/f6c5f555484642cdb1bdf16e184d67f8 [2023-11-26 10:43:11,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:43:11,500 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:43:11,505 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:43:11,505 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:43:11,511 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:43:11,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:43:11" (1/1) ... [2023-11-26 10:43:11,513 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2502c2ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:11, skipping insertion in model container [2023-11-26 10:43:11,513 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:43:11" (1/1) ... [2023-11-26 10:43:11,565 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:43:11,780 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_51c75e37-2c0c-4d83-b285-30cc2452d856/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-90.i[915,928] [2023-11-26 10:43:11,857 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:43:11,877 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:43:11,897 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_51c75e37-2c0c-4d83-b285-30cc2452d856/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-90.i[915,928] [2023-11-26 10:43:11,931 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:43:11,958 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:43:11,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:11 WrapperNode [2023-11-26 10:43:11,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:43:11,962 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:43:11,963 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:43:11,963 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:43:11,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:11" (1/1) ... [2023-11-26 10:43:12,000 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:11" (1/1) ... [2023-11-26 10:43:12,049 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 130 [2023-11-26 10:43:12,049 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:43:12,050 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:43:12,050 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:43:12,050 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:43:12,065 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:11" (1/1) ... [2023-11-26 10:43:12,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:11" (1/1) ... [2023-11-26 10:43:12,080 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:11" (1/1) ... [2023-11-26 10:43:12,132 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 10:43:12,133 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:11" (1/1) ... [2023-11-26 10:43:12,133 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:11" (1/1) ... [2023-11-26 10:43:12,144 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:11" (1/1) ... [2023-11-26 10:43:12,159 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:11" (1/1) ... [2023-11-26 10:43:12,168 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:11" (1/1) ... [2023-11-26 10:43:12,170 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:11" (1/1) ... [2023-11-26 10:43:12,175 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:43:12,176 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:43:12,176 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:43:12,176 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:43:12,177 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:11" (1/1) ... [2023-11-26 10:43:12,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:43:12,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:43:12,225 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:43:12,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:43:12,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:43:12,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 10:43:12,268 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 10:43:12,269 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 10:43:12,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:43:12,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:43:12,404 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:43:12,407 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:43:13,755 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:43:13,820 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:43:13,820 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:43:13,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:43:13 BoogieIcfgContainer [2023-11-26 10:43:13,821 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:43:13,823 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:43:13,824 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:43:13,828 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:43:13,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:43:11" (1/3) ... [2023-11-26 10:43:13,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba59662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:43:13, skipping insertion in model container [2023-11-26 10:43:13,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:11" (2/3) ... [2023-11-26 10:43:13,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba59662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:43:13, skipping insertion in model container [2023-11-26 10:43:13,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:43:13" (3/3) ... [2023-11-26 10:43:13,831 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-90.i [2023-11-26 10:43:13,851 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:43:13,852 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:43:13,899 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:43:13,905 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;@33c080bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:43:13,905 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:43:13,910 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 32 states have internal predecessors, (47), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-26 10:43:13,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-26 10:43:13,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:13,926 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:43:13,926 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:43:13,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:13,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1549808716, now seen corresponding path program 1 times [2023-11-26 10:43:13,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:43:13,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549358944] [2023-11-26 10:43:13,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:13,947 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 10:43:13,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:43:13,953 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/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 10:43:13,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/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 10:43:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:14,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 10:43:14,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:43:14,415 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-11-26 10:43:14,415 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:43:14,416 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:43:14,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549358944] [2023-11-26 10:43:14,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549358944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:14,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:14,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:43:14,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819321497] [2023-11-26 10:43:14,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:14,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:43:14,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:43:14,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:43:14,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:43:14,461 INFO L87 Difference]: Start difference. First operand has 52 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 32 states have internal predecessors, (47), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-26 10:43:15,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:15,162 INFO L93 Difference]: Finished difference Result 101 states and 182 transitions. [2023-11-26 10:43:15,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:43:15,178 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 111 [2023-11-26 10:43:15,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:15,188 INFO L225 Difference]: With dead ends: 101 [2023-11-26 10:43:15,188 INFO L226 Difference]: Without dead ends: 50 [2023-11-26 10:43:15,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 110 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 10:43:15,198 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:15,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 10:43:15,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-26 10:43:15,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-11-26 10:43:15,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 30 states have (on average 1.4) internal successors, (42), 30 states have internal predecessors, (42), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-26 10:43:15,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 78 transitions. [2023-11-26 10:43:15,252 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 78 transitions. Word has length 111 [2023-11-26 10:43:15,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:15,253 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 78 transitions. [2023-11-26 10:43:15,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-26 10:43:15,253 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 78 transitions. [2023-11-26 10:43:15,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-26 10:43:15,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:15,258 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:43:15,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:43:15,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/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 10:43:15,461 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:43:15,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:15,462 INFO L85 PathProgramCache]: Analyzing trace with hash 962363004, now seen corresponding path program 1 times [2023-11-26 10:43:15,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:43:15,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157673589] [2023-11-26 10:43:15,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:15,464 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 10:43:15,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:43:15,469 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/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 10:43:15,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/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 10:43:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:15,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 10:43:15,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:43:17,307 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 383 proven. 48 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2023-11-26 10:43:17,308 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:43:17,898 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:43:17,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157673589] [2023-11-26 10:43:17,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157673589] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:43:17,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [290670501] [2023-11-26 10:43:17,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:17,899 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-26 10:43:17,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/cvc4 [2023-11-26 10:43:17,905 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-26 10:43:17,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51c75e37-2c0c-4d83-b285-30cc2452d856/bin/uautomizer-verify-VRDe98Ueme/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-26 10:43:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:18,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-26 10:43:18,986 INFO L285 TraceCheckSpWp]: Computing forward predicates...