./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_vardep_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_vardep_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya --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 3d10641017a78060218b50f4d70d792898ed2d8ba6a3470f582f96f045a08878 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:39:07,527 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:39:07,588 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-28 20:39:07,592 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:39:07,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:39:07,615 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:39:07,616 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:39:07,616 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:39:07,617 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:39:07,617 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:39:07,618 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:39:07,618 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:39:07,619 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:39:07,620 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:39:07,620 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:39:07,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:39:07,621 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:39:07,622 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:39:07,622 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:39:07,623 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:39:07,623 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:39:07,624 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:39:07,624 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:39:07,625 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:39:07,625 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:39:07,625 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:39:07,626 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:39:07,626 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:39:07,627 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:39:07,627 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:39:07,628 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:39:07,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:39:07,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:39:07,629 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:39:07,629 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:39:07,629 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:39:07,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:39:07,629 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:39:07,629 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:39:07,629 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:39:07,630 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:39:07,630 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:39:07,630 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_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d10641017a78060218b50f4d70d792898ed2d8ba6a3470f582f96f045a08878 [2023-11-28 20:39:07,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:39:07,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:39:07,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:39:07,850 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:39:07,850 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:39:07,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_vardep_1.c [2023-11-28 20:39:10,626 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:39:10,786 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:39:10,787 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_vardep_1.c [2023-11-28 20:39:10,793 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/data/811c3f3d9/27828d42400648deb8be6c86c35971c3/FLAGb1a0fb520 [2023-11-28 20:39:10,805 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/data/811c3f3d9/27828d42400648deb8be6c86c35971c3 [2023-11-28 20:39:10,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:39:10,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:39:10,810 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:39:10,810 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:39:10,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:39:10,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:39:10" (1/1) ... [2023-11-28 20:39:10,817 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a01f0b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:10, skipping insertion in model container [2023-11-28 20:39:10,817 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:39:10" (1/1) ... [2023-11-28 20:39:10,838 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:39:10,973 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_7ea3c6f7-0414-4295-952a-abeaec9b2134/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_vardep_1.c[1113,1126] [2023-11-28 20:39:10,984 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:39:10,995 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:39:11,007 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_7ea3c6f7-0414-4295-952a-abeaec9b2134/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_vardep_1.c[1113,1126] [2023-11-28 20:39:11,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:39:11,028 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:39:11,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:11 WrapperNode [2023-11-28 20:39:11,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:39:11,030 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:39:11,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:39:11,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:39:11,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:11" (1/1) ... [2023-11-28 20:39:11,045 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:11" (1/1) ... [2023-11-28 20:39:11,065 INFO L138 Inliner]: procedures = 14, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52 [2023-11-28 20:39:11,065 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:39:11,066 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:39:11,066 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:39:11,066 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:39:11,077 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:11" (1/1) ... [2023-11-28 20:39:11,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:11" (1/1) ... [2023-11-28 20:39:11,080 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:11" (1/1) ... [2023-11-28 20:39:11,095 INFO L175 MemorySlicer]: Split 15 memory accesses to 4 slices as follows [2, 5, 4, 4]. 33 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [2, 1, 1, 1]. The 3 writes are split as follows [0, 1, 1, 1]. [2023-11-28 20:39:11,095 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:11" (1/1) ... [2023-11-28 20:39:11,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:11" (1/1) ... [2023-11-28 20:39:11,100 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:11" (1/1) ... [2023-11-28 20:39:11,102 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:11" (1/1) ... [2023-11-28 20:39:11,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:11" (1/1) ... [2023-11-28 20:39:11,105 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:11" (1/1) ... [2023-11-28 20:39:11,107 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:39:11,108 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:39:11,108 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:39:11,108 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:39:11,109 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:11" (1/1) ... [2023-11-28 20:39:11,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:39:11,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:39:11,141 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:39:11,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:39:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:39:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 20:39:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-28 20:39:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-28 20:39:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-28 20:39:11,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 20:39:11,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-28 20:39:11,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-28 20:39:11,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-28 20:39:11,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-28 20:39:11,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:39:11,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:39:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-28 20:39:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-28 20:39:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-28 20:39:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-28 20:39:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_20_to_25_0 [2023-11-28 20:39:11,179 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_20_to_25_0 [2023-11-28 20:39:11,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 20:39:11,263 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:39:11,266 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:39:11,388 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:39:11,413 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:39:11,413 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-28 20:39:11,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:39:11 BoogieIcfgContainer [2023-11-28 20:39:11,413 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:39:11,416 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:39:11,416 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:39:11,419 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:39:11,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:39:10" (1/3) ... [2023-11-28 20:39:11,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212d5fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:39:11, skipping insertion in model container [2023-11-28 20:39:11,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:39:11" (2/3) ... [2023-11-28 20:39:11,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212d5fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:39:11, skipping insertion in model container [2023-11-28 20:39:11,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:39:11" (3/3) ... [2023-11-28 20:39:11,422 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_simple_vardep_1.c [2023-11-28 20:39:11,438 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:39:11,438 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 20:39:11,474 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:39:11,480 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;@26c6d979, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:39:11,480 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 20:39:11,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:39:11,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-28 20:39:11,489 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:11,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-28 20:39:11,490 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_20_to_25_0Err0ASSERT_VIOLATIONERROR_FUNCTION === [func_to_recursive_line_20_to_25_0Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:39:11,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:11,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1829744450, now seen corresponding path program 1 times [2023-11-28 20:39:11,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:39:11,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169626695] [2023-11-28 20:39:11,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:11,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:39:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:12,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:12,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:39:12,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169626695] [2023-11-28 20:39:12,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169626695] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:39:12,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:39:12,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:39:12,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694993149] [2023-11-28 20:39:12,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:39:12,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:39:12,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:39:12,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:39:12,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:39:12,383 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:12,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:12,489 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2023-11-28 20:39:12,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:39:12,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.0) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-28 20:39:12,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:12,497 INFO L225 Difference]: With dead ends: 27 [2023-11-28 20:39:12,498 INFO L226 Difference]: Without dead ends: 12 [2023-11-28 20:39:12,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:39:12,504 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:39:12,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 37 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:39:12,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-28 20:39:12,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-28 20:39:12,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:12,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-28 20:39:12,538 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 6 [2023-11-28 20:39:12,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:12,538 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2023-11-28 20:39:12,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.0) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:12,539 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-28 20:39:12,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-28 20:39:12,539 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:12,539 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:39:12,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 20:39:12,540 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_20_to_25_0Err0ASSERT_VIOLATIONERROR_FUNCTION === [func_to_recursive_line_20_to_25_0Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:39:12,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:12,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1989389024, now seen corresponding path program 1 times [2023-11-28 20:39:12,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:39:12,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419236410] [2023-11-28 20:39:12,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:12,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:39:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:13,575 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:13,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:39:13,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419236410] [2023-11-28 20:39:13,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419236410] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:39:13,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777447502] [2023-11-28 20:39:13,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:13,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:39:13,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:39:13,580 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:39:13,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 20:39:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:13,781 WARN L260 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 105 conjunts are in the unsatisfiable core [2023-11-28 20:39:13,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:39:14,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-11-28 20:39:14,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-11-28 20:39:14,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-11-28 20:39:14,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:14,376 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:39:14,592 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-28 20:39:14,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777447502] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:39:14,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:39:14,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 6] total 19 [2023-11-28 20:39:14,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800827144] [2023-11-28 20:39:14,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:39:14,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-28 20:39:14,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:39:14,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-28 20:39:14,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2023-11-28 20:39:14,598 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 20 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 14 states have internal predecessors, (23), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:14,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:14,890 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2023-11-28 20:39:14,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-28 20:39:14,891 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 14 states have internal predecessors, (23), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-28 20:39:14,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:14,891 INFO L225 Difference]: With dead ends: 16 [2023-11-28 20:39:14,891 INFO L226 Difference]: Without dead ends: 0 [2023-11-28 20:39:14,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2023-11-28 20:39:14,894 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 14 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:39:14,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 12 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:39:14,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-28 20:39:14,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-28 20:39:14,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-11-28 20:39:14,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-28 20:39:14,896 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2023-11-28 20:39:14,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:14,897 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 20:39:14,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 14 states have internal predecessors, (23), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:14,897 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-28 20:39:14,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-28 20:39:14,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_20_to_25_0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-28 20:39:14,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-28 20:39:15,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:39:15,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-28 20:39:15,322 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-28 20:39:15,323 INFO L895 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: (and (= |ULTIMATE.start_main_~#k~0#1.offset| 0) (= (select (select |#memory_int#1| |ULTIMATE.start_main_~#k~0#1.base|) 0) 0) (= (select (select |#memory_int#3| |ULTIMATE.start_main_~#i~0#1.base|) 0) 0) (= |ULTIMATE.start_main_~#j~0#1.offset| 0) (= (select (select |#memory_int#2| |ULTIMATE.start_main_~#j~0#1.base|) 0) 0) (= |ULTIMATE.start_main_~#i~0#1.offset| 0)) [2023-11-28 20:39:15,323 INFO L899 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed. [2023-11-28 20:39:15,323 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-28 20:39:15,323 INFO L899 garLoopResultBuilder]: For program point func_to_recursive_line_20_to_25_0Err0ASSERT_VIOLATIONERROR_FUNCTION(line 26) no Hoare annotation was computed. [2023-11-28 20:39:15,323 INFO L899 garLoopResultBuilder]: For program point func_to_recursive_line_20_to_25_0EXIT(lines 37 52) no Hoare annotation was computed. [2023-11-28 20:39:15,323 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 28) no Hoare annotation was computed. [2023-11-28 20:39:15,324 INFO L899 garLoopResultBuilder]: For program point L22(lines 22 33) no Hoare annotation was computed. [2023-11-28 20:39:15,324 INFO L899 garLoopResultBuilder]: For program point L22-2(lines 20 35) no Hoare annotation was computed. [2023-11-28 20:39:15,324 INFO L895 garLoopResultBuilder]: At program point L47(line 47) the Hoare annotation is: (let ((.cse3 (select |old(#memory_int#3)| |func_to_recursive_line_20_to_25_0_#in~i#1.base|)) (.cse2 (select |old(#memory_int#2)| |func_to_recursive_line_20_to_25_0_#in~j#1.base|)) (.cse4 (select (select |old(#memory_int#1)| |func_to_recursive_line_20_to_25_0_#in~k#1.base|) |func_to_recursive_line_20_to_25_0_#in~k#1.offset|)) (.cse1 (select |#memory_int#1| |func_to_recursive_line_20_to_25_0_~k#1.base|)) (.cse0 (select |#memory_int#3| |func_to_recursive_line_20_to_25_0_~i#1.base|))) (and (or (not (= |func_to_recursive_line_20_to_25_0_#in~j#1.offset| 0)) (not (= |func_to_recursive_line_20_to_25_0_#in~i#1.offset| 0)) (not (= |func_to_recursive_line_20_to_25_0_#in~k#1.offset| 0)) (and (= |func_to_recursive_line_20_to_25_0_~j#1.offset| 0) (= (select .cse0 0) 1) (= |func_to_recursive_line_20_to_25_0_~i#1.offset| 0) (= |func_to_recursive_line_20_to_25_0_~k#1.offset| 0) (= (select .cse1 0) 3)) (not (= (select .cse2 0) 0)) (not (= (select .cse3 0) 0)) (not (= .cse4 0))) (or (not (= (+ (select .cse3 |func_to_recursive_line_20_to_25_0_#in~i#1.offset|) (select .cse2 |func_to_recursive_line_20_to_25_0_#in~j#1.offset|)) .cse4)) (= (select .cse1 |func_to_recursive_line_20_to_25_0_~k#1.offset|) (+ (select .cse0 |func_to_recursive_line_20_to_25_0_~i#1.offset|) (select (select |#memory_int#2| |func_to_recursive_line_20_to_25_0_~j#1.base|) |func_to_recursive_line_20_to_25_0_~j#1.offset|)))))) [2023-11-28 20:39:15,325 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 37 52) the Hoare annotation is: (let ((.cse7 (select |old(#memory_int#1)| |func_to_recursive_line_20_to_25_0_#in~k#1.base|)) (.cse8 (select |old(#memory_int#3)| |func_to_recursive_line_20_to_25_0_#in~i#1.base|)) (.cse9 (select |old(#memory_int#2)| |func_to_recursive_line_20_to_25_0_#in~j#1.base|)) (.cse11 (select |#memory_int#3| |func_to_recursive_line_20_to_25_0_#in~i#1.base|)) (.cse12 (select |#memory_int#1| |func_to_recursive_line_20_to_25_0_#in~k#1.base|))) (let ((.cse2 (not (= |func_to_recursive_line_20_to_25_0_#in~j#1.offset| 0))) (.cse5 (not (= |func_to_recursive_line_20_to_25_0_#in~i#1.offset| 0))) (.cse6 (not (= |func_to_recursive_line_20_to_25_0_#in~k#1.offset| 0))) (.cse0 (select .cse12 0)) (.cse1 (select .cse11 0)) (.cse4 (select .cse9 0)) (.cse3 (select .cse8 0)) (.cse10 (select .cse7 |func_to_recursive_line_20_to_25_0_#in~k#1.offset|))) (and (or (and (= .cse0 3) (= .cse1 1)) .cse2 (not (= .cse3 1)) (not (= .cse4 2)) .cse5 .cse6 (not (= (select .cse7 0) 3))) (or (not (= (+ (select .cse8 |func_to_recursive_line_20_to_25_0_#in~i#1.offset|) (select .cse9 |func_to_recursive_line_20_to_25_0_#in~j#1.offset|)) .cse10)) (= (+ (select (select |#memory_int#2| |func_to_recursive_line_20_to_25_0_#in~j#1.base|) |func_to_recursive_line_20_to_25_0_#in~j#1.offset|) (select .cse11 |func_to_recursive_line_20_to_25_0_#in~i#1.offset|)) (select .cse12 |func_to_recursive_line_20_to_25_0_#in~k#1.offset|))) (or .cse2 .cse5 .cse6 (and (= .cse0 0) (= .cse1 0)) (not (= .cse4 0)) (not (= .cse3 0)) (not (= .cse10 0)))))) [2023-11-28 20:39:15,325 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 51) no Hoare annotation was computed. [2023-11-28 20:39:15,325 INFO L899 garLoopResultBuilder]: For program point L39-1(lines 37 52) no Hoare annotation was computed. [2023-11-28 20:39:15,328 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-28 20:39:15,330 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 20:39:15,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:39:15 BoogieIcfgContainer [2023-11-28 20:39:15,334 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 20:39:15,335 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:39:15,335 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:39:15,335 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:39:15,336 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:39:11" (3/4) ... [2023-11-28 20:39:15,337 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-28 20:39:15,340 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure func_to_recursive_line_20_to_25_0 [2023-11-28 20:39:15,343 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-28 20:39:15,344 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-28 20:39:15,344 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-28 20:39:15,344 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-28 20:39:15,410 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-28 20:39:15,411 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-28 20:39:15,411 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:39:15,412 INFO L158 Benchmark]: Toolchain (without parser) took 4602.86ms. Allocated memory was 157.3MB in the beginning and 203.4MB in the end (delta: 46.1MB). Free memory was 119.6MB in the beginning and 150.6MB in the end (delta: -31.0MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2023-11-28 20:39:15,412 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 109.1MB. Free memory is still 59.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:39:15,413 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.18ms. Allocated memory is still 157.3MB. Free memory was 119.6MB in the beginning and 108.3MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-28 20:39:15,413 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.52ms. Allocated memory is still 157.3MB. Free memory was 108.3MB in the beginning and 107.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 20:39:15,413 INFO L158 Benchmark]: Boogie Preprocessor took 41.04ms. Allocated memory is still 157.3MB. Free memory was 107.0MB in the beginning and 104.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 20:39:15,414 INFO L158 Benchmark]: RCFGBuilder took 305.47ms. Allocated memory is still 157.3MB. Free memory was 104.9MB in the beginning and 92.8MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-28 20:39:15,414 INFO L158 Benchmark]: TraceAbstraction took 3918.53ms. Allocated memory was 157.3MB in the beginning and 203.4MB in the end (delta: 46.1MB). Free memory was 91.9MB in the beginning and 155.9MB in the end (delta: -64.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:39:15,415 INFO L158 Benchmark]: Witness Printer took 76.11ms. Allocated memory is still 203.4MB. Free memory was 155.9MB in the beginning and 150.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-28 20:39:15,417 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 109.1MB. Free memory is still 59.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 219.18ms. Allocated memory is still 157.3MB. Free memory was 119.6MB in the beginning and 108.3MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.52ms. Allocated memory is still 157.3MB. Free memory was 108.3MB in the beginning and 107.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.04ms. Allocated memory is still 157.3MB. Free memory was 107.0MB in the beginning and 104.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 305.47ms. Allocated memory is still 157.3MB. Free memory was 104.9MB in the beginning and 92.8MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3918.53ms. Allocated memory was 157.3MB in the beginning and 203.4MB in the end (delta: 46.1MB). Free memory was 91.9MB in the beginning and 155.9MB in the end (delta: -64.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 76.11ms. Allocated memory is still 203.4MB. Free memory was 155.9MB in the beginning and 150.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 26]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 103 IncrementalHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 12 mSDtfsCounter, 103 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 9 PreInvPairs, 12 NumberOfFragments, 270 HoareAnnotationTreeSize, 9 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 141 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 697 SizeOfPredicates, 36 NumberOfNonLiveVariables, 174 ConjunctsInSsa, 105 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 2/9 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-28 20:39:15,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea3c6f7-0414-4295-952a-abeaec9b2134/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE