./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx --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 bd18df5335c166ad57722e76e66445ba6bc9802d8c865b1ba91e68124487e889 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:24:57,628 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:24:57,698 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:24:57,704 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:24:57,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:24:57,736 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:24:57,739 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:24:57,741 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:24:57,742 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:24:57,743 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:24:57,744 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:24:57,744 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:24:57,745 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:24:57,750 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:24:57,751 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:24:57,751 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:24:57,753 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:24:57,753 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:24:57,754 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:24:57,754 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:24:57,755 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:24:57,755 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:24:57,756 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:24:57,756 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:24:57,756 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:24:57,757 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:24:57,757 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:24:57,758 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:24:57,759 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:24:57,759 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:24:57,760 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:24:57,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:24:57,761 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:24:57,761 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:24:57,761 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:24:57,762 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:24:57,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:24:57,762 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:24:57,762 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:24:57,763 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:24:57,763 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:24:57,763 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:24:57,764 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_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd18df5335c166ad57722e76e66445ba6bc9802d8c865b1ba91e68124487e889 [2023-11-21 22:24:58,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:24:58,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:24:58,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:24:58,162 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:24:58,163 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:24:58,164 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i [2023-11-21 22:25:01,357 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:25:01,590 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:25:01,591 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i [2023-11-21 22:25:01,601 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/data/5aa1c5a00/80c88ffe9584478299c6849c3415db3c/FLAG3580e67d8 [2023-11-21 22:25:01,617 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/data/5aa1c5a00/80c88ffe9584478299c6849c3415db3c [2023-11-21 22:25:01,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:25:01,622 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:25:01,623 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:01,624 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:25:01,633 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:25:01,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:01" (1/1) ... [2023-11-21 22:25:01,639 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc8849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:01, skipping insertion in model container [2023-11-21 22:25:01,639 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:01" (1/1) ... [2023-11-21 22:25:01,685 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:25:01,882 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_fef7e918-34a6-4f56-baa1-eba2d71a37b0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i[915,928] [2023-11-21 22:25:01,957 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:01,981 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:25:01,999 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_fef7e918-34a6-4f56-baa1-eba2d71a37b0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i[915,928] [2023-11-21 22:25:02,042 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:02,074 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:25:02,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:02 WrapperNode [2023-11-21 22:25:02,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:02,077 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:02,077 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:25:02,078 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:25:02,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:02" (1/1) ... [2023-11-21 22:25:02,109 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:02" (1/1) ... [2023-11-21 22:25:02,166 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 135 [2023-11-21 22:25:02,167 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:02,168 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:25:02,168 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:25:02,168 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:25:02,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:02" (1/1) ... [2023-11-21 22:25:02,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:02" (1/1) ... [2023-11-21 22:25:02,195 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:02" (1/1) ... [2023-11-21 22:25:02,210 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:25:02,211 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:02" (1/1) ... [2023-11-21 22:25:02,211 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:02" (1/1) ... [2023-11-21 22:25:02,219 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:02" (1/1) ... [2023-11-21 22:25:02,223 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:02" (1/1) ... [2023-11-21 22:25:02,225 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:02" (1/1) ... [2023-11-21 22:25:02,228 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:02" (1/1) ... [2023-11-21 22:25:02,232 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:25:02,233 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:25:02,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:25:02,234 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:25:02,235 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:02" (1/1) ... [2023-11-21 22:25:02,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:02,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:02,267 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:02,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:25:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:25:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:25:02,331 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:25:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:25:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:25:02,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:25:02,423 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:25:02,425 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:25:02,905 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:25:03,108 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:25:03,108 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:25:03,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:03 BoogieIcfgContainer [2023-11-21 22:25:03,111 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:25:03,118 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:25:03,119 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:25:03,122 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:25:03,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:25:01" (1/3) ... [2023-11-21 22:25:03,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42f03ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:03, skipping insertion in model container [2023-11-21 22:25:03,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:02" (2/3) ... [2023-11-21 22:25:03,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42f03ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:03, skipping insertion in model container [2023-11-21 22:25:03,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:03" (3/3) ... [2023-11-21 22:25:03,129 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-44.i [2023-11-21 22:25:03,153 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:25:03,154 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:25:03,203 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:25:03,210 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;@1058dd02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:25:03,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:25:03,215 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-21 22:25:03,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-21 22:25:03,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:03,227 INFO L195 NwaCegarLoop]: trace histogram [21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:03,227 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:25:03,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:03,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1519458727, now seen corresponding path program 1 times [2023-11-21 22:25:03,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:03,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752654849] [2023-11-21 22:25:03,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:03,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:03,457 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:25:03,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1827525484] [2023-11-21 22:25:03,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:03,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:25:03,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:03,465 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:25:03,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:25:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:25:03,698 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:25:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:25:03,899 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:25:03,901 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:25:03,903 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:25:03,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:04,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-21 22:25:04,116 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:25:04,119 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:25:04,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:25:04 BoogieIcfgContainer [2023-11-21 22:25:04,200 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:25:04,201 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:25:04,201 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:25:04,201 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:25:04,202 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:03" (3/4) ... [2023-11-21 22:25:04,204 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:25:04,205 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:25:04,207 INFO L158 Benchmark]: Toolchain (without parser) took 2584.83ms. Allocated memory was 140.5MB in the beginning and 195.0MB in the end (delta: 54.5MB). Free memory was 92.4MB in the beginning and 111.0MB in the end (delta: -18.6MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2023-11-21 22:25:04,207 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 140.5MB. Free memory is still 111.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:25:04,208 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.12ms. Allocated memory is still 140.5MB. Free memory was 91.9MB in the beginning and 79.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:25:04,209 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.53ms. Allocated memory is still 140.5MB. Free memory was 79.3MB in the beginning and 76.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:25:04,209 INFO L158 Benchmark]: Boogie Preprocessor took 64.60ms. Allocated memory is still 140.5MB. Free memory was 76.2MB in the beginning and 71.4MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:25:04,210 INFO L158 Benchmark]: RCFGBuilder took 878.58ms. Allocated memory was 140.5MB in the beginning and 195.0MB in the end (delta: 54.5MB). Free memory was 71.4MB in the beginning and 148.7MB in the end (delta: -77.3MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2023-11-21 22:25:04,211 INFO L158 Benchmark]: TraceAbstraction took 1082.14ms. Allocated memory is still 195.0MB. Free memory was 148.7MB in the beginning and 112.0MB in the end (delta: 36.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-21 22:25:04,212 INFO L158 Benchmark]: Witness Printer took 4.89ms. Allocated memory is still 195.0MB. Free memory was 112.0MB in the beginning and 111.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:25:04,215 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 140.5MB. Free memory is still 111.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 452.12ms. Allocated memory is still 140.5MB. Free memory was 91.9MB in the beginning and 79.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.53ms. Allocated memory is still 140.5MB. Free memory was 79.3MB in the beginning and 76.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.60ms. Allocated memory is still 140.5MB. Free memory was 76.2MB in the beginning and 71.4MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 878.58ms. Allocated memory was 140.5MB in the beginning and 195.0MB in the end (delta: 54.5MB). Free memory was 71.4MB in the beginning and 148.7MB in the end (delta: -77.3MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1082.14ms. Allocated memory is still 195.0MB. Free memory was 148.7MB in the beginning and 112.0MB in the end (delta: 36.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 4.89ms. Allocated memory is still 195.0MB. Free memory was 112.0MB in the beginning and 111.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of shiftRight at line 54. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 32; [L23] signed char var_1_5 = -1; [L24] signed char var_1_6 = 50; [L25] unsigned char var_1_7 = 50; [L26] unsigned char var_1_8 = 10; [L27] unsigned char var_1_9 = 128; [L28] unsigned char var_1_10 = 32; [L29] unsigned char var_1_11 = 0; [L30] signed char var_1_12 = 8; [L31] unsigned char var_1_13 = 1; [L32] signed char var_1_14 = 64; [L33] signed char var_1_15 = 16; [L34] signed char var_1_16 = 16; [L35] unsigned long int var_1_17 = 4; [L101] isInitial = 1 [L102] FCALL initially() [L103] int k_loop; [L104] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=50, var_1_7=50, var_1_8=10, var_1_9=128] [L104] COND TRUE k_loop < 1 [L105] FCALL updateLastVariables() [L106] CALL updateVariables() [L62] var_1_5 = __VERIFIER_nondet_char() [L63] CALL assume_abort_if_not(var_1_5 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=50, var_1_7=50, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_5 >= -1) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=50, var_1_7=50, var_1_8=10, var_1_9=128] [L64] CALL assume_abort_if_not(var_1_5 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=50, var_1_7=50, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_5 <= 127) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=50, var_1_7=50, var_1_8=10, var_1_9=128] [L65] var_1_6 = __VERIFIER_nondet_char() [L66] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=50, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=50, var_1_8=10, var_1_9=128] [L67] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=50, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=50, var_1_8=10, var_1_9=128] [L68] var_1_7 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L70] CALL assume_abort_if_not(var_1_7 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_7 <= 255) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L71] CALL assume_abort_if_not(var_1_7 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_7 != 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L72] var_1_9 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_9 >= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_9 >= 127) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L74] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L75] var_1_10 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L77] CALL assume_abort_if_not(var_1_10 <= 64) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_10 <= 64) VAL [isInitial=1, var_1_10=64, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L78] var_1_11 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L80] CALL assume_abort_if_not(var_1_11 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_11 <= 63) VAL [isInitial=1, var_1_10=64, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L81] var_1_13 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=63, var_1_12=8, var_1_13=0, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=63, var_1_12=8, var_1_13=0, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L83] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=63, var_1_12=8, var_1_13=0, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, var_1_10=64, var_1_11=63, var_1_12=8, var_1_13=0, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L84] var_1_14 = __VERIFIER_nondet_char() [L85] CALL assume_abort_if_not(var_1_14 >= 62) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=63, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_14 >= 62) VAL [isInitial=1, var_1_10=64, var_1_11=63, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L86] CALL assume_abort_if_not(var_1_14 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=63, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_14 <= 126) VAL [isInitial=1, var_1_10=64, var_1_11=63, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L87] var_1_15 = __VERIFIER_nondet_char() [L88] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=63, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=124, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=63, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=124, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L89] CALL assume_abort_if_not(var_1_15 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=63, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=124, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_15 <= 126) VAL [isInitial=1, var_1_10=64, var_1_11=63, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=124, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L90] var_1_16 = __VERIFIER_nondet_char() [L91] CALL assume_abort_if_not(var_1_16 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=63, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=124, var_1_16=4, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_16 >= -127) VAL [isInitial=1, var_1_10=64, var_1_11=63, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=124, var_1_16=4, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L92] CALL assume_abort_if_not(var_1_16 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=63, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=124, var_1_16=4, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_16 <= 126) VAL [isInitial=1, var_1_10=64, var_1_11=63, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=124, var_1_16=4, var_1_17=4, var_1_1=32, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=10, var_1_9=128] [L106] RET updateVariables() [L107] CALL step() [L39] var_1_8 = (var_1_9 - (var_1_10 + var_1_11)) [L40] COND TRUE ! var_1_13 [L41] var_1_12 = ((((((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) > (var_1_16)) ? (((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) : (var_1_16))) [L45] signed long int stepLocal_1 = var_1_5 - var_1_6; [L46] signed char stepLocal_0 = var_1_5; [L47] COND FALSE !(var_1_12 > stepLocal_1) [L52] var_1_1 = var_1_7 [L54] EXPR var_1_1 >> var_1_11 [L54] signed long int stepLocal_2 = var_1_1 >> var_1_11; [L55] COND TRUE stepLocal_2 != ((var_1_1 * var_1_8) / ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14)))) [L56] var_1_17 = var_1_11 [L107] RET step() [L108] CALL, EXPR property() [L97] EXPR ((((var_1_12 > (var_1_5 - var_1_6)) ? (((var_1_8 / var_1_7) <= var_1_5) ? (var_1_1 == ((signed long int) var_1_12)) : 1) : (var_1_1 == ((signed long int) var_1_7))) && (var_1_8 == ((unsigned char) (var_1_9 - (var_1_10 + var_1_11))))) && ((! var_1_13) ? (var_1_12 == ((signed char) ((((((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) > (var_1_16)) ? (((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) : (var_1_16))))) : (var_1_12 == ((signed char) 2)))) && (((var_1_1 >> var_1_11) != ((var_1_1 * var_1_8) / ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14))))) ? (var_1_17 == ((unsigned long int) var_1_11)) : (var_1_17 == ((unsigned long int) var_1_7))) [L97] EXPR var_1_1 >> var_1_11 [L97] EXPR ((((var_1_12 > (var_1_5 - var_1_6)) ? (((var_1_8 / var_1_7) <= var_1_5) ? (var_1_1 == ((signed long int) var_1_12)) : 1) : (var_1_1 == ((signed long int) var_1_7))) && (var_1_8 == ((unsigned char) (var_1_9 - (var_1_10 + var_1_11))))) && ((! var_1_13) ? (var_1_12 == ((signed char) ((((((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) > (var_1_16)) ? (((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) : (var_1_16))))) : (var_1_12 == ((signed char) 2)))) && (((var_1_1 >> var_1_11) != ((var_1_1 * var_1_8) / ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14))))) ? (var_1_17 == ((unsigned long int) var_1_11)) : (var_1_17 == ((unsigned long int) var_1_7))) [L97-L98] return ((((var_1_12 > (var_1_5 - var_1_6)) ? (((var_1_8 / var_1_7) <= var_1_5) ? (var_1_1 == ((signed long int) var_1_12)) : 1) : (var_1_1 == ((signed long int) var_1_7))) && (var_1_8 == ((unsigned char) (var_1_9 - (var_1_10 + var_1_11))))) && ((! var_1_13) ? (var_1_12 == ((signed char) ((((((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) > (var_1_16)) ? (((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) : (var_1_16))))) : (var_1_12 == ((signed char) 2)))) && (((var_1_1 >> var_1_11) != ((var_1_1 * var_1_8) / ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14))))) ? (var_1_17 == ((unsigned long int) var_1_11)) : (var_1_17 == ((unsigned long int) var_1_7))) ; [L108] RET, EXPR property() [L108] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=64, var_1_11=63, var_1_12=4, var_1_13=0, var_1_14=62, var_1_15=124, var_1_16=4, var_1_17=63, var_1_1=3, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=1, var_1_9=128] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=64, var_1_11=63, var_1_12=4, var_1_13=0, var_1_14=62, var_1_15=124, var_1_16=4, var_1_17=63, var_1_1=3, var_1_5=127, var_1_6=0, var_1_7=3, var_1_8=1, var_1_9=128] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 21, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 [2023-11-21 22:25:04,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx --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 bd18df5335c166ad57722e76e66445ba6bc9802d8c865b1ba91e68124487e889 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:25:06,927 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:25:07,038 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 22:25:07,056 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:25:07,057 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:25:07,107 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:25:07,108 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:25:07,109 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:25:07,110 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:25:07,115 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:25:07,116 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:25:07,116 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:25:07,117 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:25:07,119 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:25:07,119 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:25:07,120 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:25:07,121 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:25:07,121 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:25:07,122 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:25:07,122 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:25:07,122 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:25:07,123 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:25:07,123 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:25:07,124 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:25:07,124 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:25:07,125 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:25:07,125 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:25:07,126 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:25:07,126 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:25:07,126 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:25:07,127 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:25:07,127 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:25:07,128 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:25:07,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:07,128 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:25:07,129 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:25:07,129 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:25:07,129 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:25:07,129 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:25:07,130 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:25:07,130 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:25:07,130 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:25:07,130 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:25:07,131 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:25:07,131 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:25:07,131 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_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd18df5335c166ad57722e76e66445ba6bc9802d8c865b1ba91e68124487e889 [2023-11-21 22:25:07,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:25:07,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:25:07,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:25:07,611 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:25:07,613 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:25:07,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i [2023-11-21 22:25:10,912 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:25:11,193 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:25:11,193 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i [2023-11-21 22:25:11,210 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/data/b03c74e6d/37406caa5862447d90d716a94ece3d02/FLAG17cce1d7e [2023-11-21 22:25:11,232 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/data/b03c74e6d/37406caa5862447d90d716a94ece3d02 [2023-11-21 22:25:11,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:25:11,239 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:25:11,242 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:11,242 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:25:11,247 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:25:11,248 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:11" (1/1) ... [2023-11-21 22:25:11,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35afd6cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:11, skipping insertion in model container [2023-11-21 22:25:11,250 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:11" (1/1) ... [2023-11-21 22:25:11,292 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:25:11,487 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_fef7e918-34a6-4f56-baa1-eba2d71a37b0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i[915,928] [2023-11-21 22:25:11,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:11,589 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:25:11,603 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_fef7e918-34a6-4f56-baa1-eba2d71a37b0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i[915,928] [2023-11-21 22:25:11,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:11,647 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:25:11,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:11 WrapperNode [2023-11-21 22:25:11,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:11,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:11,649 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:25:11,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:25:11,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:11" (1/1) ... [2023-11-21 22:25:11,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:11" (1/1) ... [2023-11-21 22:25:11,752 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118 [2023-11-21 22:25:11,752 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:11,753 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:25:11,753 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:25:11,753 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:25:11,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:11" (1/1) ... [2023-11-21 22:25:11,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:11" (1/1) ... [2023-11-21 22:25:11,788 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:11" (1/1) ... [2023-11-21 22:25:11,799 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:25:11,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:11" (1/1) ... [2023-11-21 22:25:11,800 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:11" (1/1) ... [2023-11-21 22:25:11,819 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:11" (1/1) ... [2023-11-21 22:25:11,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:11" (1/1) ... [2023-11-21 22:25:11,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:11" (1/1) ... [2023-11-21 22:25:11,838 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:11" (1/1) ... [2023-11-21 22:25:11,841 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:25:11,842 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:25:11,842 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:25:11,843 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:25:11,844 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:11" (1/1) ... [2023-11-21 22:25:11,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:11,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:11,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:11,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:25:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:25:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:25:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:25:11,918 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:25:11,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:25:11,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:25:12,004 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:25:12,007 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:25:12,443 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:25:12,606 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:25:12,606 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:25:12,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:12 BoogieIcfgContainer [2023-11-21 22:25:12,608 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:25:12,611 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:25:12,611 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:25:12,615 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:25:12,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:25:11" (1/3) ... [2023-11-21 22:25:12,631 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793e42e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:12, skipping insertion in model container [2023-11-21 22:25:12,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:11" (2/3) ... [2023-11-21 22:25:12,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793e42e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:12, skipping insertion in model container [2023-11-21 22:25:12,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:12" (3/3) ... [2023-11-21 22:25:12,636 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-44.i [2023-11-21 22:25:12,659 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:25:12,660 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:25:12,729 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:25:12,739 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;@61aa17cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:25:12,742 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:25:12,746 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-21 22:25:12,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-21 22:25:12,760 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:12,761 INFO L195 NwaCegarLoop]: trace histogram [21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:12,762 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:25:12,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:12,771 INFO L85 PathProgramCache]: Analyzing trace with hash 2083429802, now seen corresponding path program 1 times [2023-11-21 22:25:12,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:25:12,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2129986037] [2023-11-21 22:25:12,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:12,788 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 [2023-11-21 22:25:12,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:25:12,789 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:25:12,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef7e918-34a6-4f56-baa1-eba2d71a37b0/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:25:13,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:13,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 22:25:13,122 INFO L285 TraceCheckSpWp]: Computing forward predicates...