./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/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_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fe305249fd372aa93f06f96f19c9f980fcfbf950606534816ffa9c7d79f22fc1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:55:37,347 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:55:37,408 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 05:55:37,412 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:55:37,412 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:55:37,433 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:55:37,434 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:55:37,434 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:55:37,435 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:55:37,435 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:55:37,436 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:55:37,436 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:55:37,437 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:55:37,438 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:55:37,438 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:55:37,439 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:55:37,439 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:55:37,440 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:55:37,440 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:55:37,441 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:55:37,441 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:55:37,442 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:55:37,442 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:55:37,442 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:55:37,443 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:55:37,443 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:55:37,444 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:55:37,444 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:55:37,444 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:55:37,445 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:55:37,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:55:37,445 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:55:37,446 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:55:37,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:55:37,446 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:55:37,446 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:55:37,447 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:55:37,447 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:55:37,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:55:37,447 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:55:37,447 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:55:37,448 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:55:37,448 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:55:37,448 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:55:37,448 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_b60fec6f-d16b-44b5-a754-389779f7fe0d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe305249fd372aa93f06f96f19c9f980fcfbf950606534816ffa9c7d79f22fc1 [2023-11-29 05:55:37,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:55:37,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:55:37,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:55:37,689 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:55:37,689 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:55:37,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c [2023-11-29 05:55:40,477 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:55:40,657 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:55:40,658 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c [2023-11-29 05:55:40,666 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/data/982af6857/cabeb33f58ea4ae78ebd7fcc095ba221/FLAGff84199a0 [2023-11-29 05:55:40,680 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/data/982af6857/cabeb33f58ea4ae78ebd7fcc095ba221 [2023-11-29 05:55:40,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:55:40,685 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:55:40,686 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:55:40,686 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:55:40,691 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:55:40,692 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:55:40" (1/1) ... [2023-11-29 05:55:40,693 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@307d8436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:40, skipping insertion in model container [2023-11-29 05:55:40,693 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:55:40" (1/1) ... [2023-11-29 05:55:40,717 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:55:40,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:55:40,902 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:55:40,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:55:40,944 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:55:40,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:40 WrapperNode [2023-11-29 05:55:40,945 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:55:40,946 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:55:40,946 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:55:40,947 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:55:40,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:40" (1/1) ... [2023-11-29 05:55:40,963 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:40" (1/1) ... [2023-11-29 05:55:40,987 INFO L138 Inliner]: procedures = 18, calls = 77, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 111 [2023-11-29 05:55:40,988 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:55:40,988 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:55:40,989 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:55:40,989 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:55:41,000 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:40" (1/1) ... [2023-11-29 05:55:41,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:40" (1/1) ... [2023-11-29 05:55:41,005 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:40" (1/1) ... [2023-11-29 05:55:41,023 INFO L175 MemorySlicer]: Split 51 memory accesses to 5 slices as follows [2, 11, 24, 6, 8]. 47 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 7 writes are split as follows [0, 2, 2, 1, 2]. [2023-11-29 05:55:41,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:40" (1/1) ... [2023-11-29 05:55:41,024 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:40" (1/1) ... [2023-11-29 05:55:41,035 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:40" (1/1) ... [2023-11-29 05:55:41,037 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:40" (1/1) ... [2023-11-29 05:55:41,039 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:40" (1/1) ... [2023-11-29 05:55:41,041 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:40" (1/1) ... [2023-11-29 05:55:41,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:55:41,047 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:55:41,047 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:55:41,047 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:55:41,048 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:40" (1/1) ... [2023-11-29 05:55:41,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:55:41,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:55:41,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:55:41,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:55:41,114 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_0_to_36_0 [2023-11-29 05:55:41,114 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_0_to_36_0 [2023-11-29 05:55:41,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:55:41,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:55:41,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 05:55:41,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 05:55:41,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 05:55:41,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 05:55:41,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:55:41,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 05:55:41,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 05:55:41,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 05:55:41,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 05:55:41,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 05:55:41,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-29 05:55:41,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-29 05:55:41,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-29 05:55:41,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-29 05:55:41,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-11-29 05:55:41,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-29 05:55:41,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-29 05:55:41,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-29 05:55:41,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-11-29 05:55:41,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2023-11-29 05:55:41,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:55:41,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:55:41,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 05:55:41,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 05:55:41,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 05:55:41,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 05:55:41,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 05:55:41,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 05:55:41,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 05:55:41,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:55:41,226 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:55:41,228 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:55:41,627 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:55:41,657 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:55:41,658 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 05:55:41,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:55:41 BoogieIcfgContainer [2023-11-29 05:55:41,658 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:55:41,661 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:55:41,662 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:55:41,664 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:55:41,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:55:40" (1/3) ... [2023-11-29 05:55:41,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135c0cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:55:41, skipping insertion in model container [2023-11-29 05:55:41,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:40" (2/3) ... [2023-11-29 05:55:41,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135c0cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:55:41, skipping insertion in model container [2023-11-29 05:55:41,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:55:41" (3/3) ... [2023-11-29 05:55:41,667 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_freire2.c [2023-11-29 05:55:41,682 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:55:41,682 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2023-11-29 05:55:41,747 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:55:41,753 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;@186dfb87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:55:41,753 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-11-29 05:55:41,757 INFO L276 IsEmpty]: Start isEmpty. Operand has 146 states, 75 states have (on average 1.84) internal successors, (138), 136 states have internal predecessors, (138), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 05:55:41,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 05:55:41,763 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:55:41,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 05:55:41,764 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_0_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2023-11-29 05:55:41,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:55:41,768 INFO L85 PathProgramCache]: Analyzing trace with hash 201863913, now seen corresponding path program 1 times [2023-11-29 05:55:41,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:55:41,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244627494] [2023-11-29 05:55:41,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:55:41,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:55:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:55:42,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:55:42,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:55:42,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244627494] [2023-11-29 05:55:42,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244627494] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:55:42,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:55:42,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:55:42,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194017907] [2023-11-29 05:55:42,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:55:42,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:55:42,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:55:42,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:55:42,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:55:42,234 INFO L87 Difference]: Start difference. First operand has 146 states, 75 states have (on average 1.84) internal successors, (138), 136 states have internal predecessors, (138), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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) [2023-11-29 05:55:42,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:55:42,544 INFO L93 Difference]: Finished difference Result 426 states and 465 transitions. [2023-11-29 05:55:42,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:55:42,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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 5 [2023-11-29 05:55:42,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:55:42,557 INFO L225 Difference]: With dead ends: 426 [2023-11-29 05:55:42,557 INFO L226 Difference]: Without dead ends: 277 [2023-11-29 05:55:42,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:55:42,566 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 206 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:55:42,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 565 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:55:42,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2023-11-29 05:55:42,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 182. [2023-11-29 05:55:42,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 109 states have (on average 1.798165137614679) internal successors, (196), 169 states have internal predecessors, (196), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2023-11-29 05:55:42,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 217 transitions. [2023-11-29 05:55:42,624 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 217 transitions. Word has length 5 [2023-11-29 05:55:42,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:55:42,625 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 217 transitions. [2023-11-29 05:55:42,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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) [2023-11-29 05:55:42,625 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 217 transitions. [2023-11-29 05:55:42,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 05:55:42,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:55:42,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:55:42,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:55:42,626 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_0_to_36_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2023-11-29 05:55:42,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:55:42,627 INFO L85 PathProgramCache]: Analyzing trace with hash 717693259, now seen corresponding path program 1 times [2023-11-29 05:55:42,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:55:42,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979968285] [2023-11-29 05:55:42,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:55:42,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:55:42,653 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:55:42,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1688108320] [2023-11-29 05:55:42,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:55:42,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:55:42,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:55:42,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:55:42,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 05:55:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:55:42,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 05:55:42,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:55:42,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 05:55:42,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:55:42,964 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:55:42,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:55:42,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979968285] [2023-11-29 05:55:42,964 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:55:42,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688108320] [2023-11-29 05:55:42,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688108320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:55:42,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:55:42,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:55:42,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551738262] [2023-11-29 05:55:42,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:55:42,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:55:42,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:55:42,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:55:42,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:55:42,968 INFO L87 Difference]: Start difference. First operand 182 states and 217 transitions. Second operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2023-11-29 05:55:43,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:55:43,278 INFO L93 Difference]: Finished difference Result 277 states and 287 transitions. [2023-11-29 05:55:43,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:55:43,279 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 7 [2023-11-29 05:55:43,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:55:43,282 INFO L225 Difference]: With dead ends: 277 [2023-11-29 05:55:43,282 INFO L226 Difference]: Without dead ends: 276 [2023-11-29 05:55:43,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:55:43,284 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 198 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:55:43,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 658 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:55:43,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2023-11-29 05:55:43,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 182. [2023-11-29 05:55:43,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 109 states have (on average 1.7889908256880733) internal successors, (195), 169 states have internal predecessors, (195), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2023-11-29 05:55:43,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 216 transitions. [2023-11-29 05:55:43,303 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 216 transitions. Word has length 7 [2023-11-29 05:55:43,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:55:43,303 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 216 transitions. [2023-11-29 05:55:43,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2023-11-29 05:55:43,304 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 216 transitions. [2023-11-29 05:55:43,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 05:55:43,304 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:55:43,304 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:55:43,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:55:43,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:55:43,509 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_0_to_36_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2023-11-29 05:55:43,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:55:43,510 INFO L85 PathProgramCache]: Analyzing trace with hash 773654590, now seen corresponding path program 1 times [2023-11-29 05:55:43,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:55:43,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272808155] [2023-11-29 05:55:43,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:55:43,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:55:43,531 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:55:43,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [96036601] [2023-11-29 05:55:43,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:55:43,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:55:43,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:55:43,533 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:55:43,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 05:55:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:55:43,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 05:55:43,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:55:43,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 05:55:43,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:55:43,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:55:43,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:55:43,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272808155] [2023-11-29 05:55:43,732 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:55:43,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96036601] [2023-11-29 05:55:43,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96036601] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:55:43,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:55:43,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:55:43,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025174163] [2023-11-29 05:55:43,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:55:43,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:55:43,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:55:43,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:55:43,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:55:43,734 INFO L87 Difference]: Start difference. First operand 182 states and 216 transitions. Second operand has 7 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2023-11-29 05:55:44,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:55:44,004 INFO L93 Difference]: Finished difference Result 276 states and 286 transitions. [2023-11-29 05:55:44,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:55:44,005 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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 8 [2023-11-29 05:55:44,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:55:44,007 INFO L225 Difference]: With dead ends: 276 [2023-11-29 05:55:44,007 INFO L226 Difference]: Without dead ends: 275 [2023-11-29 05:55:44,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:55:44,009 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 194 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:55:44,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 660 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:55:44,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-11-29 05:55:44,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 182. [2023-11-29 05:55:44,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 109 states have (on average 1.7798165137614679) internal successors, (194), 169 states have internal predecessors, (194), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2023-11-29 05:55:44,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 215 transitions. [2023-11-29 05:55:44,025 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 215 transitions. Word has length 8 [2023-11-29 05:55:44,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:55:44,025 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 215 transitions. [2023-11-29 05:55:44,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2023-11-29 05:55:44,026 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 215 transitions. [2023-11-29 05:55:44,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 05:55:44,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:55:44,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:55:44,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 05:55:44,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:55:44,229 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_0_to_36_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2023-11-29 05:55:44,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:55:44,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1786511443, now seen corresponding path program 1 times [2023-11-29 05:55:44,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:55:44,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643600753] [2023-11-29 05:55:44,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:55:44,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:55:44,250 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:55:44,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1407729433] [2023-11-29 05:55:44,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:55:44,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:55:44,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:55:44,252 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:55:44,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 05:55:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:55:44,371 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:55:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:55:44,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:55:44,412 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 05:55:44,413 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location func_to_recursive_line_0_to_36_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 60 remaining) [2023-11-29 05:55:44,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 60 remaining) [2023-11-29 05:55:44,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 60 remaining) [2023-11-29 05:55:44,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 60 remaining) [2023-11-29 05:55:44,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 60 remaining) [2023-11-29 05:55:44,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 60 remaining) [2023-11-29 05:55:44,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 60 remaining) [2023-11-29 05:55:44,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 60 remaining) [2023-11-29 05:55:44,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 60 remaining) [2023-11-29 05:55:44,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 60 remaining) [2023-11-29 05:55:44,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 60 remaining) [2023-11-29 05:55:44,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 60 remaining) [2023-11-29 05:55:44,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 60 remaining) [2023-11-29 05:55:44,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 60 remaining) [2023-11-29 05:55:44,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 60 remaining) [2023-11-29 05:55:44,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 60 remaining) [2023-11-29 05:55:44,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 60 remaining) [2023-11-29 05:55:44,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 60 remaining) [2023-11-29 05:55:44,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 60 remaining) [2023-11-29 05:55:44,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 60 remaining) [2023-11-29 05:55:44,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 60 remaining) [2023-11-29 05:55:44,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 60 remaining) [2023-11-29 05:55:44,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 60 remaining) [2023-11-29 05:55:44,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 60 remaining) [2023-11-29 05:55:44,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err24ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 60 remaining) [2023-11-29 05:55:44,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err25ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 60 remaining) [2023-11-29 05:55:44,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err26ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 60 remaining) [2023-11-29 05:55:44,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err27ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 60 remaining) [2023-11-29 05:55:44,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err28ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 60 remaining) [2023-11-29 05:55:44,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err29ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 60 remaining) [2023-11-29 05:55:44,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err30ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 60 remaining) [2023-11-29 05:55:44,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_0_to_36_0Err31ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 60 remaining) [2023-11-29 05:55:44,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 60 remaining) [2023-11-29 05:55:44,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 60 remaining) [2023-11-29 05:55:44,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 60 remaining) [2023-11-29 05:55:44,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 60 remaining) [2023-11-29 05:55:44,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 60 remaining) [2023-11-29 05:55:44,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 60 remaining) [2023-11-29 05:55:44,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 60 remaining) [2023-11-29 05:55:44,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 60 remaining) [2023-11-29 05:55:44,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 60 remaining) [2023-11-29 05:55:44,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 60 remaining) [2023-11-29 05:55:44,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 60 remaining) [2023-11-29 05:55:44,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 60 remaining) [2023-11-29 05:55:44,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 60 remaining) [2023-11-29 05:55:44,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 60 remaining) [2023-11-29 05:55:44,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 60 remaining) [2023-11-29 05:55:44,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 60 remaining) [2023-11-29 05:55:44,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 60 remaining) [2023-11-29 05:55:44,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 60 remaining) [2023-11-29 05:55:44,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 60 remaining) [2023-11-29 05:55:44,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 60 remaining) [2023-11-29 05:55:44,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 60 remaining) [2023-11-29 05:55:44,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 60 remaining) [2023-11-29 05:55:44,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 60 remaining) [2023-11-29 05:55:44,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 60 remaining) [2023-11-29 05:55:44,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 60 remaining) [2023-11-29 05:55:44,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 60 remaining) [2023-11-29 05:55:44,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 60 remaining) [2023-11-29 05:55:44,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 60 remaining) [2023-11-29 05:55:44,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 05:55:44,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:55:44,636 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-29 05:55:44,640 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:55:44,659 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-29 05:55:44,660 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-29 05:55:44,660 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-29 05:55:44,661 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-29 05:55:44,661 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-29 05:55:44,661 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-29 05:55:44,661 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-29 05:55:44,662 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-29 05:55:44,662 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-29 05:55:44,662 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-29 05:55:44,662 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-29 05:55:44,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:55:44 BoogieIcfgContainer [2023-11-29 05:55:44,672 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:55:44,673 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:55:44,673 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:55:44,673 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:55:44,674 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:55:41" (3/4) ... [2023-11-29 05:55:44,675 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 05:55:44,676 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:55:44,677 INFO L158 Benchmark]: Toolchain (without parser) took 3992.30ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 111.0MB in the beginning and 132.8MB in the end (delta: -21.8MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2023-11-29 05:55:44,677 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 104.9MB. Free memory is still 57.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:55:44,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.58ms. Allocated memory is still 142.6MB. Free memory was 111.0MB in the beginning and 99.6MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 05:55:44,678 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.58ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 97.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:55:44,679 INFO L158 Benchmark]: Boogie Preprocessor took 57.65ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 94.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 05:55:44,679 INFO L158 Benchmark]: RCFGBuilder took 611.69ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 65.0MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-29 05:55:44,680 INFO L158 Benchmark]: TraceAbstraction took 3010.87ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 64.5MB in the beginning and 132.8MB in the end (delta: -68.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:55:44,680 INFO L158 Benchmark]: Witness Printer took 3.36ms. Allocated memory is still 180.4MB. Free memory is still 132.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:55:44,682 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 104.9MB. Free memory is still 57.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.58ms. Allocated memory is still 142.6MB. Free memory was 111.0MB in the beginning and 99.6MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.58ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 97.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.65ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 94.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 611.69ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 65.0MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3010.87ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 64.5MB in the beginning and 132.8MB in the end (delta: -68.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.36ms. Allocated memory is still 180.4MB. Free memory is still 132.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 58]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of to_int at line 58. Possible FailurePath: [L81] int r; [L82] double a; [L83] double x; [L84] double s; [L85] a = __VERIFIER_nondet_double() [L86] EXPR \read(a) [L86] x = a [L87] s = 3.25 [L88] r = 1 [L89] CALL func_to_recursive_line_0_to_36_0(&s, &a, &x, &r) VAL [a={8:0}, r={9:0}, s={10:0}, x={4:0}] [L58] EXPR \read(*s) [L58] EXPR \read(*r) VAL [a={8:0}, a={8:0}, r={9:0}, r={9:0}, s={10:0}, s={10:0}, x={4:0}, x={4:0}] [L58] EXPR 12 * (*r) [L58] EXPR \read(*r) VAL [a={8:0}, a={8:0}, r={9:0}, r={9:0}, s={10:0}, s={10:0}, x={4:0}, x={4:0}] [L58] EXPR (12 * (*r)) * (*r) VAL [a={8:0}, a={8:0}, r={9:0}, r={9:0}, s={10:0}, s={10:0}, x={4:0}, x={4:0}] [L58] ((int) (4 * (*s))) - ((12 * (*r)) * (*r)) VAL [a={8:0}, a={8:0}, r={9:0}, r={9:0}, s={10:0}, s={10:0}, x={4:0}, x={4:0}] - UnprovableResult [Line: 58]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 146 locations, 60 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 605 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 598 mSDsluCounter, 1883 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1538 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 647 IncrementalHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 345 mSDtfsCounter, 647 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=182occurred in iteration=1, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 282 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 167 SizeOfPredicates, 12 NumberOfNonLiveVariables, 297 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 [2023-11-29 05:55:44,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/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_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fe305249fd372aa93f06f96f19c9f980fcfbf950606534816ffa9c7d79f22fc1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:55:46,622 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:55:46,696 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2023-11-29 05:55:46,701 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:55:46,702 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:55:46,731 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:55:46,731 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:55:46,732 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:55:46,732 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:55:46,733 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:55:46,734 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:55:46,734 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:55:46,735 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:55:46,735 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:55:46,736 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:55:46,737 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:55:46,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:55:46,738 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:55:46,738 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:55:46,739 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:55:46,739 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:55:46,740 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:55:46,740 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:55:46,741 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 05:55:46,741 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 05:55:46,742 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:55:46,742 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 05:55:46,743 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:55:46,743 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:55:46,743 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:55:46,744 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:55:46,745 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:55:46,745 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:55:46,745 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:55:46,746 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:55:46,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:55:46,746 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:55:46,747 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:55:46,747 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:55:46,747 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 05:55:46,747 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 05:55:46,748 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:55:46,748 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:55:46,748 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:55:46,748 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:55:46,748 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:55:46,748 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 05:55:46,749 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_b60fec6f-d16b-44b5-a754-389779f7fe0d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe305249fd372aa93f06f96f19c9f980fcfbf950606534816ffa9c7d79f22fc1 [2023-11-29 05:55:47,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:55:47,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:55:47,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:55:47,102 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:55:47,102 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:55:47,104 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c [2023-11-29 05:55:49,944 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:55:50,136 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:55:50,137 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/sv-benchmarks/c/recursified_nla-digbench/recursified_freire2.c [2023-11-29 05:55:50,147 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/data/142f06911/cbe47c9744f84c64a9f011337c17455d/FLAG89f454b03 [2023-11-29 05:55:50,162 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/data/142f06911/cbe47c9744f84c64a9f011337c17455d [2023-11-29 05:55:50,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:55:50,166 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:55:50,168 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:55:50,168 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:55:50,173 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:55:50,174 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:55:50" (1/1) ... [2023-11-29 05:55:50,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60d10bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:50, skipping insertion in model container [2023-11-29 05:55:50,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:55:50" (1/1) ... [2023-11-29 05:55:50,198 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:55:50,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:55:50,407 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:55:50,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:55:50,458 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:55:50,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:50 WrapperNode [2023-11-29 05:55:50,459 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:55:50,460 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:55:50,460 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:55:50,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:55:50,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:50" (1/1) ... [2023-11-29 05:55:50,482 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:50" (1/1) ... [2023-11-29 05:55:50,508 INFO L138 Inliner]: procedures = 21, calls = 77, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 112 [2023-11-29 05:55:50,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:55:50,509 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:55:50,509 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:55:50,509 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:55:50,520 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:50" (1/1) ... [2023-11-29 05:55:50,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:50" (1/1) ... [2023-11-29 05:55:50,526 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:50" (1/1) ... [2023-11-29 05:55:50,545 INFO L175 MemorySlicer]: Split 51 memory accesses to 5 slices as follows [2, 8, 11, 6, 24]. 47 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 7 writes are split as follows [0, 2, 2, 1, 2]. [2023-11-29 05:55:50,545 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:50" (1/1) ... [2023-11-29 05:55:50,545 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:50" (1/1) ... [2023-11-29 05:55:50,560 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:50" (1/1) ... [2023-11-29 05:55:50,562 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:50" (1/1) ... [2023-11-29 05:55:50,565 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:50" (1/1) ... [2023-11-29 05:55:50,568 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:50" (1/1) ... [2023-11-29 05:55:50,573 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:55:50,574 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:55:50,575 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:55:50,575 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:55:50,575 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:55:50" (1/1) ... [2023-11-29 05:55:50,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:55:50,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:55:50,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:55:50,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:55:50,645 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_0_to_36_0 [2023-11-29 05:55:50,645 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_0_to_36_0 [2023-11-29 05:55:50,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:55:50,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2023-11-29 05:55:50,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2023-11-29 05:55:50,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2023-11-29 05:55:50,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2023-11-29 05:55:50,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2023-11-29 05:55:50,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2023-11-29 05:55:50,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2023-11-29 05:55:50,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2023-11-29 05:55:50,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2023-11-29 05:55:50,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2023-11-29 05:55:50,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 05:55:50,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 05:55:50,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 05:55:50,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 05:55:50,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-29 05:55:50,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:55:50,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 05:55:50,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 05:55:50,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 05:55:50,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 05:55:50,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-29 05:55:50,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:55:50,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:55:50,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 05:55:50,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 05:55:50,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:55:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 05:55:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 05:55:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 05:55:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 05:55:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-29 05:55:50,767 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:55:50,769 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:56:00,009 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2023-11-29 05:56:00,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2023-11-29 05:56:00,010 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.constructTransFormula(Statements2TransFormula.java:221) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.getTransFormula(Statements2TransFormula.java:175) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.statementSequence(Statements2TransFormula.java:735) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.util.TransFormulaAdder.addTransitionFormulas(TransFormulaAdder.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:742) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 25 more [2023-11-29 05:56:00,015 INFO L158 Benchmark]: Toolchain (without parser) took 9847.89ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 35.4MB in the beginning and 62.9MB in the end (delta: -27.5MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2023-11-29 05:56:00,015 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 69.2MB. Free memory is still 45.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:56:00,016 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.65ms. Allocated memory is still 69.2MB. Free memory was 35.2MB in the beginning and 40.2MB in the end (delta: -5.0MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2023-11-29 05:56:00,017 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.31ms. Allocated memory is still 69.2MB. Free memory was 40.0MB in the beginning and 38.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:56:00,017 INFO L158 Benchmark]: Boogie Preprocessor took 64.73ms. Allocated memory is still 69.2MB. Free memory was 38.0MB in the beginning and 34.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 05:56:00,018 INFO L158 Benchmark]: RCFGBuilder took 9438.83ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 34.5MB in the beginning and 62.9MB in the end (delta: -28.4MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2023-11-29 05:56:00,021 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 69.2MB. Free memory is still 45.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.65ms. Allocated memory is still 69.2MB. Free memory was 35.2MB in the beginning and 40.2MB in the end (delta: -5.0MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.31ms. Allocated memory is still 69.2MB. Free memory was 40.0MB in the beginning and 38.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.73ms. Allocated memory is still 69.2MB. Free memory was 38.0MB in the beginning and 34.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 9438.83ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 34.5MB in the beginning and 62.9MB in the end (delta: -28.4MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60fec6f-d16b-44b5-a754-389779f7fe0d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")