./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ncompf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea1ff09-f0f1-4799-b71e-5e0853a2731d/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea1ff09-f0f1-4799-b71e-5e0853a2731d/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_fea1ff09-f0f1-4799-b71e-5e0853a2731d/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea1ff09-f0f1-4799-b71e-5e0853a2731d/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/ncompf.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea1ff09-f0f1-4799-b71e-5e0853a2731d/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_fea1ff09-f0f1-4799-b71e-5e0853a2731d/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 9828ae97bd89bb8bc9e03b825846d0b3720f0cca297df36eda8ff823667b1534 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:12:36,448 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:12:36,586 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea1ff09-f0f1-4799-b71e-5e0853a2731d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:12:36,598 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:12:36,599 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:12:36,644 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:12:36,646 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:12:36,647 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:12:36,649 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:12:36,654 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:12:36,655 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:12:36,656 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:12:36,657 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:12:36,659 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:12:36,659 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:12:36,660 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:12:36,661 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:12:36,661 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:12:36,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:12:36,662 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:12:36,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:12:36,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:12:36,664 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:12:36,665 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:12:36,666 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:12:36,666 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:12:36,667 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:12:36,668 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:12:36,668 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:12:36,669 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:12:36,671 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:12:36,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:12:36,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:12:36,672 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:12:36,672 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:12:36,673 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:12:36,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:12:36,673 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:12:36,674 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:12:36,674 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:12:36,675 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:12:36,675 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:12:36,676 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_fea1ff09-f0f1-4799-b71e-5e0853a2731d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea1ff09-f0f1-4799-b71e-5e0853a2731d/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9828ae97bd89bb8bc9e03b825846d0b3720f0cca297df36eda8ff823667b1534 [2023-11-21 22:12:37,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:12:37,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:12:37,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:12:37,117 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:12:37,117 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:12:37,119 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea1ff09-f0f1-4799-b71e-5e0853a2731d/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/array-fpi/ncompf.c [2023-11-21 22:12:40,409 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:12:40,656 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:12:40,656 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea1ff09-f0f1-4799-b71e-5e0853a2731d/sv-benchmarks/c/array-fpi/ncompf.c [2023-11-21 22:12:40,666 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea1ff09-f0f1-4799-b71e-5e0853a2731d/bin/uautomizer-verify-bycVGegfSx/data/82bec1d40/33a980fee4164756a565d7fc016dc925/FLAG292e63057 [2023-11-21 22:12:40,683 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea1ff09-f0f1-4799-b71e-5e0853a2731d/bin/uautomizer-verify-bycVGegfSx/data/82bec1d40/33a980fee4164756a565d7fc016dc925 [2023-11-21 22:12:40,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:12:40,689 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:12:40,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:12:40,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:12:40,698 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:12:40,699 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:12:40" (1/1) ... [2023-11-21 22:12:40,700 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f4faa91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:40, skipping insertion in model container [2023-11-21 22:12:40,701 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:12:40" (1/1) ... [2023-11-21 22:12:40,727 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:12:40,912 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_fea1ff09-f0f1-4799-b71e-5e0853a2731d/sv-benchmarks/c/array-fpi/ncompf.c[589,602] [2023-11-21 22:12:40,970 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:12:40,983 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:12:41,002 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_fea1ff09-f0f1-4799-b71e-5e0853a2731d/sv-benchmarks/c/array-fpi/ncompf.c[589,602] [2023-11-21 22:12:41,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:12:41,066 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:12:41,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:41 WrapperNode [2023-11-21 22:12:41,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:12:41,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:12:41,069 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:12:41,069 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:12:41,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:41" (1/1) ... [2023-11-21 22:12:41,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:41" (1/1) ... [2023-11-21 22:12:41,119 INFO L138 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2023-11-21 22:12:41,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:12:41,121 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:12:41,121 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:12:41,121 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:12:41,134 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:41" (1/1) ... [2023-11-21 22:12:41,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:41" (1/1) ... [2023-11-21 22:12:41,137 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:41" (1/1) ... [2023-11-21 22:12:41,153 INFO L187 HeapSplitter]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4] [2023-11-21 22:12:41,154 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:41" (1/1) ... [2023-11-21 22:12:41,154 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:41" (1/1) ... [2023-11-21 22:12:41,163 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:41" (1/1) ... [2023-11-21 22:12:41,168 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:41" (1/1) ... [2023-11-21 22:12:41,171 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:41" (1/1) ... [2023-11-21 22:12:41,172 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:41" (1/1) ... [2023-11-21 22:12:41,176 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:12:41,178 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:12:41,178 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:12:41,178 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:12:41,179 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:41" (1/1) ... [2023-11-21 22:12:41,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:12:41,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea1ff09-f0f1-4799-b71e-5e0853a2731d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:12:41,219 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea1ff09-f0f1-4799-b71e-5e0853a2731d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:12:41,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea1ff09-f0f1-4799-b71e-5e0853a2731d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:12:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:12:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:12:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:12:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 22:12:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 22:12:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 22:12:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 22:12:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 22:12:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 22:12:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:12:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:12:41,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:12:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 22:12:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 22:12:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 22:12:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 22:12:41,444 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:12:41,447 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:12:41,770 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:12:41,838 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:12:41,838 INFO L308 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-21 22:12:41,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:12:41 BoogieIcfgContainer [2023-11-21 22:12:41,841 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:12:41,844 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:12:41,844 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:12:41,848 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:12:41,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:12:40" (1/3) ... [2023-11-21 22:12:41,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465a49f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:12:41, skipping insertion in model container [2023-11-21 22:12:41,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:41" (2/3) ... [2023-11-21 22:12:41,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465a49f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:12:41, skipping insertion in model container [2023-11-21 22:12:41,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:12:41" (3/3) ... [2023-11-21 22:12:41,852 INFO L112 eAbstractionObserver]: Analyzing ICFG ncompf.c [2023-11-21 22:12:41,896 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:12:41,897 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:12:41,953 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:12:41,962 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;@28a8fe86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:12:41,962 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:12:41,967 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:41,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 22:12:41,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:41,976 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:41,976 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:12:41,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:41,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1831000124, now seen corresponding path program 1 times [2023-11-21 22:12:41,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:41,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597249889] [2023-11-21 22:12:41,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:41,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:42,198 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:12:42,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [558548897] [2023-11-21 22:12:42,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:42,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:12:42,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea1ff09-f0f1-4799-b71e-5e0853a2731d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:12:42,202 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea1ff09-f0f1-4799-b71e-5e0853a2731d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:12:42,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea1ff09-f0f1-4799-b71e-5e0853a2731d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:12:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:12:42,346 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:12:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:12:42,389 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:12:42,392 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:12:42,393 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:12:42,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea1ff09-f0f1-4799-b71e-5e0853a2731d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:12:42,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea1ff09-f0f1-4799-b71e-5e0853a2731d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-21 22:12:42,622 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:12:42,626 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:12:42,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:12:42 BoogieIcfgContainer [2023-11-21 22:12:42,649 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:12:42,650 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:12:42,650 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:12:42,650 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:12:42,651 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:12:41" (3/4) ... [2023-11-21 22:12:42,652 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 22:12:42,707 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea1ff09-f0f1-4799-b71e-5e0853a2731d/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:12:42,707 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:12:42,709 INFO L158 Benchmark]: Toolchain (without parser) took 2019.73ms. Allocated memory is still 186.6MB. Free memory was 140.1MB in the beginning and 134.2MB in the end (delta: 5.8MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2023-11-21 22:12:42,709 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 123.7MB. Free memory was 90.7MB in the beginning and 90.6MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:12:42,710 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.78ms. Allocated memory is still 186.6MB. Free memory was 140.1MB in the beginning and 129.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:12:42,711 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.03ms. Allocated memory is still 186.6MB. Free memory was 129.1MB in the beginning and 127.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:12:42,712 INFO L158 Benchmark]: Boogie Preprocessor took 55.71ms. Allocated memory is still 186.6MB. Free memory was 127.0MB in the beginning and 124.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:12:42,713 INFO L158 Benchmark]: RCFGBuilder took 663.30ms. Allocated memory is still 186.6MB. Free memory was 124.9MB in the beginning and 108.6MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 22:12:42,714 INFO L158 Benchmark]: TraceAbstraction took 805.04ms. Allocated memory is still 186.6MB. Free memory was 107.6MB in the beginning and 136.3MB in the end (delta: -28.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:12:42,715 INFO L158 Benchmark]: Witness Printer took 57.45ms. Allocated memory is still 186.6MB. Free memory was 136.3MB in the beginning and 134.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:12:42,719 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 123.7MB. Free memory was 90.7MB in the beginning and 90.6MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.78ms. Allocated memory is still 186.6MB. Free memory was 140.1MB in the beginning and 129.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.03ms. Allocated memory is still 186.6MB. Free memory was 129.1MB in the beginning and 127.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.71ms. Allocated memory is still 186.6MB. Free memory was 127.0MB in the beginning and 124.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 663.30ms. Allocated memory is still 186.6MB. Free memory was 124.9MB in the beginning and 108.6MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 805.04ms. Allocated memory is still 186.6MB. Free memory was 107.6MB in the beginning and 136.3MB in the end (delta: -28.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 57.45ms. Allocated memory is still 186.6MB. Free memory was 136.3MB in the beginning and 134.2MB in the end (delta: 2.1MB). 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 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L30] long long *c = malloc(sizeof(long long)*N); [L32] a[0] = 6 [L33] b[0] = 1 [L34] c[0] = 0 [L35] i=1 VAL [N=1, a={-1:0}, b={-3:0}, c={-2:0}, i=1] [L35] COND FALSE !(i