./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d611551bdd81171138955e09eec2c35a3c053022d643f86b25023a5ba282a01a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:04:52,882 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:04:53,017 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:04:53,024 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:04:53,025 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:04:53,065 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:04:53,066 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:04:53,067 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:04:53,068 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:04:53,073 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:04:53,074 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:04:53,075 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:04:53,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:04:53,077 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:04:53,078 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:04:53,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:04:53,079 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:04:53,079 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:04:53,080 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:04:53,080 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:04:53,080 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:04:53,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:04:53,082 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:04:53,082 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:04:53,082 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:04:53,083 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:04:53,083 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:04:53,084 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:04:53,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:04:53,085 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:04:53,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:04:53,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:04:53,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:04:53,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:04:53,087 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:04:53,088 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:04:53,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:04:53,088 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:04:53,088 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:04:53,089 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:04:53,089 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:04:53,089 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:04:53,090 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_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d611551bdd81171138955e09eec2c35a3c053022d643f86b25023a5ba282a01a [2023-11-21 22:04:53,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:04:53,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:04:53,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:04:53,412 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:04:53,413 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:04:53,416 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c [2023-11-21 22:04:56,445 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:04:56,623 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:04:56,624 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c [2023-11-21 22:04:56,637 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/data/c1112f5e1/dcd0943d0cbf430088d0240696e3551a/FLAG6cb77c0fe [2023-11-21 22:04:56,661 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/data/c1112f5e1/dcd0943d0cbf430088d0240696e3551a [2023-11-21 22:04:56,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:04:56,666 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:04:56,667 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:04:56,667 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:04:56,686 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:04:56,686 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:04:56" (1/1) ... [2023-11-21 22:04:56,687 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1969d96f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:56, skipping insertion in model container [2023-11-21 22:04:56,688 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:04:56" (1/1) ... [2023-11-21 22:04:56,733 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:04:56,886 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c[1055,1068] [2023-11-21 22:04:56,904 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:04:56,919 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:04:56,931 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c[1055,1068] [2023-11-21 22:04:56,947 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:04:56,962 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:04:56,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:56 WrapperNode [2023-11-21 22:04:56,963 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:04:56,965 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:04:56,965 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:04:56,965 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:04:56,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:56" (1/1) ... [2023-11-21 22:04:56,985 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:56" (1/1) ... [2023-11-21 22:04:57,008 INFO L138 Inliner]: procedures = 16, calls = 66, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 84 [2023-11-21 22:04:57,009 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:04:57,010 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:04:57,010 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:04:57,010 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:04:57,022 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:56" (1/1) ... [2023-11-21 22:04:57,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:56" (1/1) ... [2023-11-21 22:04:57,025 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:56" (1/1) ... [2023-11-21 22:04:57,039 INFO L187 HeapSplitter]: Split 36 memory accesses to 8 slices as follows [2, 6, 4, 8, 5, 6, 3, 2] [2023-11-21 22:04:57,039 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:56" (1/1) ... [2023-11-21 22:04:57,039 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:56" (1/1) ... [2023-11-21 22:04:57,049 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:56" (1/1) ... [2023-11-21 22:04:57,051 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:56" (1/1) ... [2023-11-21 22:04:57,054 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:56" (1/1) ... [2023-11-21 22:04:57,055 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:56" (1/1) ... [2023-11-21 22:04:57,060 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:04:57,061 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:04:57,061 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:04:57,061 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:04:57,062 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:56" (1/1) ... [2023-11-21 22:04:57,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:04:57,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:04:57,103 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:04:57,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:04:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:04:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:04:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:04:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 22:04:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 22:04:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 22:04:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-21 22:04:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-21 22:04:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-21 22:04:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:04:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 22:04:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 22:04:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 22:04:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 22:04:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-21 22:04:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-21 22:04:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-21 22:04:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-21 22:04:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_38_0 [2023-11-21 22:04:57,152 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_38_0 [2023-11-21 22:04:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:04:57,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:04:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 22:04:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 22:04:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 22:04:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 22:04:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-21 22:04:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-21 22:04:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-21 22:04:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-21 22:04:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 22:04:57,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 22:04:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:04:57,287 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:04:57,289 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:04:57,568 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:04:57,609 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:04:57,610 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:04:57,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:04:57 BoogieIcfgContainer [2023-11-21 22:04:57,612 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:04:57,615 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:04:57,615 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:04:57,618 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:04:57,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:04:56" (1/3) ... [2023-11-21 22:04:57,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b35e292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:04:57, skipping insertion in model container [2023-11-21 22:04:57,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:56" (2/3) ... [2023-11-21 22:04:57,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b35e292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:04:57, skipping insertion in model container [2023-11-21 22:04:57,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:04:57" (3/3) ... [2023-11-21 22:04:57,622 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_geo3-ll.c [2023-11-21 22:04:57,644 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:04:57,644 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:04:57,698 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:04:57,705 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;@7325e4c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:04:57,706 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:04:57,710 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:04:57,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 22:04:57,718 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:04:57,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:04:57,719 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:04:57,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:04:57,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1288934217, now seen corresponding path program 1 times [2023-11-21 22:04:57,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:04:57,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308394307] [2023-11-21 22:04:57,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:04:57,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:04:57,858 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:04:57,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1383843653] [2023-11-21 22:04:57,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:04:57,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:04:57,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:04:57,861 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:04:57,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:04:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:04:58,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 81 conjunts are in the unsatisfiable core [2023-11-21 22:04:58,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:04:58,241 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 [2023-11-21 22:04:58,254 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 15 treesize of output 1 [2023-11-21 22:04:58,263 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 15 treesize of output 11 [2023-11-21 22:04:58,274 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 15 treesize of output 1 [2023-11-21 22:04:58,282 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 21 treesize of output 17 [2023-11-21 22:04:58,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2023-11-21 22:04:58,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-21 22:04:58,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-21 22:04:58,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-21 22:04:58,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:04:58,776 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:04:58,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:04:58,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308394307] [2023-11-21 22:04:58,778 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:04:58,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383843653] [2023-11-21 22:04:58,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383843653] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:04:58,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:04:58,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:04:58,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727659608] [2023-11-21 22:04:58,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:04:58,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:04:58,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:04:58,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:04:58,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:04:58,830 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:04:59,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:04:59,367 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2023-11-21 22:04:59,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:04:59,370 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-21 22:04:59,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:04:59,378 INFO L225 Difference]: With dead ends: 52 [2023-11-21 22:04:59,378 INFO L226 Difference]: Without dead ends: 31 [2023-11-21 22:04:59,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:04:59,385 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 15 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:04:59,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 72 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-21 22:04:59,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-21 22:04:59,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2023-11-21 22:04:59,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 21 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-21 22:04:59,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2023-11-21 22:04:59,430 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 8 [2023-11-21 22:04:59,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:04:59,430 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2023-11-21 22:04:59,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:04:59,431 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2023-11-21 22:04:59,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-21 22:04:59,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:04:59,432 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:04:59,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:04:59,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-21 22:04:59,648 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:04:59,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:04:59,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1531368910, now seen corresponding path program 1 times [2023-11-21 22:04:59,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:04:59,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648860636] [2023-11-21 22:04:59,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:04:59,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:04:59,709 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:04:59,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [905997198] [2023-11-21 22:04:59,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:04:59,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:04:59,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:04:59,715 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:04:59,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:05:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:00,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 139 conjunts are in the unsatisfiable core [2023-11-21 22:05:00,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:05:00,111 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 15 treesize of output 1 [2023-11-21 22:05:00,114 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 15 treesize of output 11 [2023-11-21 22:05:00,121 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 21 treesize of output 17 [2023-11-21 22:05:00,131 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 15 treesize of output 1 [2023-11-21 22:05:00,138 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 [2023-11-21 22:05:00,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2023-11-21 22:05:00,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-11-21 22:05:00,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2023-11-21 22:05:00,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2023-11-21 22:05:00,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 27 [2023-11-21 22:05:00,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-21 22:05:00,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-21 22:05:00,875 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:00,875 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:05:02,394 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:02,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:02,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648860636] [2023-11-21 22:05:02,394 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:05:02,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905997198] [2023-11-21 22:05:02,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905997198] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:05:02,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:05:02,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2023-11-21 22:05:02,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291559775] [2023-11-21 22:05:02,395 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:05:02,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-21 22:05:02,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:02,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-21 22:05:02,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2023-11-21 22:05:02,398 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 17 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 8 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:05:06,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:05:06,689 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2023-11-21 22:05:06,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-21 22:05:06,694 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 8 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2023-11-21 22:05:06,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:05:06,697 INFO L225 Difference]: With dead ends: 57 [2023-11-21 22:05:06,697 INFO L226 Difference]: Without dead ends: 51 [2023-11-21 22:05:06,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=120, Invalid=530, Unknown=0, NotChecked=0, Total=650 [2023-11-21 22:05:06,699 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 67 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:05:06,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 104 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-21 22:05:06,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-21 22:05:06,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 43. [2023-11-21 22:05:06,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 30 states have internal predecessors, (31), 7 states have call successors, (7), 6 states have call predecessors, (7), 7 states have return successors, (11), 7 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-21 22:05:06,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2023-11-21 22:05:06,725 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 18 [2023-11-21 22:05:06,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:05:06,726 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2023-11-21 22:05:06,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 8 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:05:06,726 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2023-11-21 22:05:06,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-21 22:05:06,728 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:06,728 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:06,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:05:06,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:05:06,941 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:05:06,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:06,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1152056984, now seen corresponding path program 1 times [2023-11-21 22:05:06,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:06,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82363153] [2023-11-21 22:05:06,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:06,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:06,969 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:05:06,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139184139] [2023-11-21 22:05:06,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:06,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:05:06,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:05:06,971 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:05:06,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:05:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:07,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 100 conjunts are in the unsatisfiable core [2023-11-21 22:05:07,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:05:07,179 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 15 treesize of output 11 [2023-11-21 22:05:07,184 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 15 treesize of output 1 [2023-11-21 22:05:07,188 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 21 treesize of output 17 [2023-11-21 22:05:07,197 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 [2023-11-21 22:05:07,206 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 15 treesize of output 1 [2023-11-21 22:05:07,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2023-11-21 22:05:07,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-21 22:05:07,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-21 22:05:07,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-21 22:05:07,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:07,828 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:05:08,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:08,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:08,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82363153] [2023-11-21 22:05:08,773 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:05:08,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139184139] [2023-11-21 22:05:08,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139184139] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:05:08,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:05:08,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 19 [2023-11-21 22:05:08,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983831742] [2023-11-21 22:05:08,775 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:05:08,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-21 22:05:08,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:08,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-21 22:05:08,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2023-11-21 22:05:08,777 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 19 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:05:10,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:05:10,394 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2023-11-21 22:05:10,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-21 22:05:10,395 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 18 [2023-11-21 22:05:10,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:05:10,396 INFO L225 Difference]: With dead ends: 53 [2023-11-21 22:05:10,396 INFO L226 Difference]: Without dead ends: 39 [2023-11-21 22:05:10,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=123, Invalid=633, Unknown=0, NotChecked=0, Total=756 [2023-11-21 22:05:10,398 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 30 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:05:10,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 48 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-21 22:05:10,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-21 22:05:10,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-21 22:05:10,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2023-11-21 22:05:10,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2023-11-21 22:05:10,421 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 18 [2023-11-21 22:05:10,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:05:10,422 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2023-11-21 22:05:10,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:05:10,422 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2023-11-21 22:05:10,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-21 22:05:10,424 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:10,425 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:10,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:05:10,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:05:10,641 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:05:10,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:10,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1534841428, now seen corresponding path program 1 times [2023-11-21 22:05:10,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:10,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632486030] [2023-11-21 22:05:10,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:10,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:10,668 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:05:10,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [921332920] [2023-11-21 22:05:10,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:10,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:05:10,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:05:10,670 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:05:10,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 22:05:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:11,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 184 conjunts are in the unsatisfiable core [2023-11-21 22:05:11,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:05:11,182 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 15 treesize of output 1 [2023-11-21 22:05:11,185 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 15 treesize of output 1 [2023-11-21 22:05:11,188 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 15 treesize of output 1 [2023-11-21 22:05:12,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2023-11-21 22:05:12,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2023-11-21 22:05:12,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2023-11-21 22:05:12,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2023-11-21 22:05:12,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-11-21 22:05:12,377 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-21 22:05:12,377 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:05:15,186 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:05:15,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 75 [2023-11-21 22:05:15,207 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:05:15,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 59 [2023-11-21 22:05:18,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:18,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632486030] [2023-11-21 22:05:18,939 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:05:18,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921332920] [2023-11-21 22:05:18,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921332920] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:05:18,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:05:18,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-21 22:05:18,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290361713] [2023-11-21 22:05:18,940 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-21 22:05:18,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-21 22:05:18,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:18,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-21 22:05:18,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-11-21 22:05:18,942 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 12 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-21 22:05:20,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:05:20,346 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2023-11-21 22:05:20,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:05:20,346 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 42 [2023-11-21 22:05:20,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:05:20,347 INFO L225 Difference]: With dead ends: 39 [2023-11-21 22:05:20,347 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 22:05:20,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2023-11-21 22:05:20,349 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 16 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:05:20,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 32 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-21 22:05:20,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 22:05:20,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 22:05:20,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:20,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 22:05:20,353 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2023-11-21 22:05:20,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:05:20,353 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:05:20,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-21 22:05:20,353 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 22:05:20,353 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 22:05:20,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:05:20,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:05:20,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:05:20,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 22:05:26,774 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 63) no Hoare annotation was computed. [2023-11-21 22:05:26,775 INFO L895 garLoopResultBuilder]: At program point L56(line 56) the Hoare annotation is: (or (let ((.cse0 (select (select |#memory_int#3| |func_to_recursive_line_30_to_38_0_#in~x.base|) |func_to_recursive_line_30_to_38_0_#in~x.offset|))) (and (= func_to_recursive_line_30_to_38_0_~x.base |func_to_recursive_line_30_to_38_0_#in~x.base|) (= |func_to_recursive_line_30_to_38_0_#t~mem9| (select (select |#memory_int#4| |func_to_recursive_line_30_to_38_0_#in~y.base|) |func_to_recursive_line_30_to_38_0_#in~y.offset|)) (= |func_to_recursive_line_30_to_38_0_#in~az.base| func_to_recursive_line_30_to_38_0_~az.base) (= func_to_recursive_line_30_to_38_0_~z.offset |func_to_recursive_line_30_to_38_0_#in~z.offset|) (= |#memory_int#4| |old(#memory_int#4)|) (= func_to_recursive_line_30_to_38_0_~z.base |func_to_recursive_line_30_to_38_0_#in~z.base|) (= (+ |func_to_recursive_line_30_to_38_0_#t~mem6| (* |func_to_recursive_line_30_to_38_0_#t~mem9| |func_to_recursive_line_30_to_38_0_#t~mem8|)) (+ |func_to_recursive_line_30_to_38_0_#t~mem7| (* |func_to_recursive_line_30_to_38_0_#t~mem5| |func_to_recursive_line_30_to_38_0_#t~mem4|))) (= |#memory_int#5| |old(#memory_int#5)|) (= func_to_recursive_line_30_to_38_0_~y.base |func_to_recursive_line_30_to_38_0_#in~y.base|) (= |#memory_int#1| |old(#memory_int#1)|) (= |func_to_recursive_line_30_to_38_0_#t~mem6| .cse0) (= |func_to_recursive_line_30_to_38_0_#in~az.offset| func_to_recursive_line_30_to_38_0_~az.offset) (= |func_to_recursive_line_30_to_38_0_#t~mem5| .cse0) (= func_to_recursive_line_30_to_38_0_~a.offset |func_to_recursive_line_30_to_38_0_#in~a.offset|) (= func_to_recursive_line_30_to_38_0_~x.offset |func_to_recursive_line_30_to_38_0_#in~x.offset|) (= |#memory_int#6| |old(#memory_int#6)|) (= |func_to_recursive_line_30_to_38_0_#t~mem4| (select (select |#memory_int#5| |func_to_recursive_line_30_to_38_0_#in~z.base|) |func_to_recursive_line_30_to_38_0_#in~z.offset|)) (= func_to_recursive_line_30_to_38_0_~y.offset |func_to_recursive_line_30_to_38_0_#in~y.offset|) (= |#memory_int#3| |old(#memory_int#3)|) (= |func_to_recursive_line_30_to_38_0_#t~mem8| (select (select |#memory_int#6| |func_to_recursive_line_30_to_38_0_#in~az.base|) |func_to_recursive_line_30_to_38_0_#in~az.offset|)) (= |func_to_recursive_line_30_to_38_0_#in~a.base| func_to_recursive_line_30_to_38_0_~a.base))) (not (let ((.cse1 (select (select |old(#memory_int#3)| |func_to_recursive_line_30_to_38_0_#in~x.base|) |func_to_recursive_line_30_to_38_0_#in~x.offset|))) (= (+ .cse1 (* (select (select |old(#memory_int#6)| |func_to_recursive_line_30_to_38_0_#in~az.base|) |func_to_recursive_line_30_to_38_0_#in~az.offset|) (select (select |old(#memory_int#4)| |func_to_recursive_line_30_to_38_0_#in~y.base|) |func_to_recursive_line_30_to_38_0_#in~y.offset|))) (+ (select (select |old(#memory_int#1)| |func_to_recursive_line_30_to_38_0_#in~a.base|) |func_to_recursive_line_30_to_38_0_#in~a.offset|) (* (select (select |old(#memory_int#5)| |func_to_recursive_line_30_to_38_0_#in~z.base|) |func_to_recursive_line_30_to_38_0_#in~z.offset|) .cse1)))))) [2023-11-21 22:05:26,775 INFO L899 garLoopResultBuilder]: For program point L56-1(line 56) no Hoare annotation was computed. [2023-11-21 22:05:26,775 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 72) no Hoare annotation was computed. [2023-11-21 22:05:26,776 INFO L899 garLoopResultBuilder]: For program point L53-1(lines 51 73) no Hoare annotation was computed. [2023-11-21 22:05:26,776 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 51 73) the Hoare annotation is: (or (not (let ((.cse0 (select (select |old(#memory_int#3)| |func_to_recursive_line_30_to_38_0_#in~x.base|) |func_to_recursive_line_30_to_38_0_#in~x.offset|))) (= (+ .cse0 (* (select (select |old(#memory_int#6)| |func_to_recursive_line_30_to_38_0_#in~az.base|) |func_to_recursive_line_30_to_38_0_#in~az.offset|) (select (select |old(#memory_int#4)| |func_to_recursive_line_30_to_38_0_#in~y.base|) |func_to_recursive_line_30_to_38_0_#in~y.offset|))) (+ (select (select |old(#memory_int#1)| |func_to_recursive_line_30_to_38_0_#in~a.base|) |func_to_recursive_line_30_to_38_0_#in~a.offset|) (* (select (select |old(#memory_int#5)| |func_to_recursive_line_30_to_38_0_#in~z.base|) |func_to_recursive_line_30_to_38_0_#in~z.offset|) .cse0))))) (and (= |#memory_int#4| |old(#memory_int#4)|) (= |#memory_int#5| |old(#memory_int#5)|) (= |#memory_int#1| |old(#memory_int#1)|) (= |#memory_int#6| |old(#memory_int#6)|) (= |#memory_int#3| |old(#memory_int#3)|))) [2023-11-21 22:05:26,776 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (let ((.cse0 (select (select |old(#memory_int#4)| |func_to_recursive_line_30_to_38_0_#in~y.base|) |func_to_recursive_line_30_to_38_0_#in~y.offset|)) (.cse5 (select (select |old(#memory_int#1)| |func_to_recursive_line_30_to_38_0_#in~a.base|) |func_to_recursive_line_30_to_38_0_#in~a.offset|)) (.cse6 (select (select |old(#memory_int#3)| |func_to_recursive_line_30_to_38_0_#in~x.base|) |func_to_recursive_line_30_to_38_0_#in~x.offset|))) (let ((.cse2 (select (select |#memory_int#4| func_to_recursive_line_30_to_38_0_~y.base) func_to_recursive_line_30_to_38_0_~y.offset)) (.cse1 (select (select |#memory_int#5| func_to_recursive_line_30_to_38_0_~z.base) func_to_recursive_line_30_to_38_0_~z.offset)) (.cse4 (select (select |#memory_int#3| func_to_recursive_line_30_to_38_0_~x.base) func_to_recursive_line_30_to_38_0_~x.offset)) (.cse3 (select (select |#memory_int#1| func_to_recursive_line_30_to_38_0_~a.base) func_to_recursive_line_30_to_38_0_~a.offset)) (.cse7 (not (= (+ .cse6 (* (select (select |old(#memory_int#6)| |func_to_recursive_line_30_to_38_0_#in~az.base|) |func_to_recursive_line_30_to_38_0_#in~az.offset|) .cse0)) (+ .cse5 (* (select (select |old(#memory_int#5)| |func_to_recursive_line_30_to_38_0_#in~z.base|) |func_to_recursive_line_30_to_38_0_#in~z.offset|) .cse6)))))) (and (or (not (= 1 .cse0)) (and (= .cse1 .cse2) (= (+ .cse3 (* .cse3 .cse1)) .cse4)) (not (= .cse5 .cse6)) .cse7) (or (and (= func_to_recursive_line_30_to_38_0_~x.base |func_to_recursive_line_30_to_38_0_#in~x.base|) (= |func_to_recursive_line_30_to_38_0_#in~az.base| func_to_recursive_line_30_to_38_0_~az.base) (= func_to_recursive_line_30_to_38_0_~z.offset |func_to_recursive_line_30_to_38_0_#in~z.offset|) (= (+ (* .cse2 (select (select |#memory_int#6| func_to_recursive_line_30_to_38_0_~az.base) func_to_recursive_line_30_to_38_0_~az.offset)) .cse4) (+ (* .cse1 .cse4) .cse3)) (= func_to_recursive_line_30_to_38_0_~z.base |func_to_recursive_line_30_to_38_0_#in~z.base|) (= |#memory_int#5| |old(#memory_int#5)|) (= func_to_recursive_line_30_to_38_0_~y.base |func_to_recursive_line_30_to_38_0_#in~y.base|) (= |#memory_int#1| |old(#memory_int#1)|) (= |func_to_recursive_line_30_to_38_0_#in~az.offset| func_to_recursive_line_30_to_38_0_~az.offset) (= func_to_recursive_line_30_to_38_0_~a.offset |func_to_recursive_line_30_to_38_0_#in~a.offset|) (= func_to_recursive_line_30_to_38_0_~x.offset |func_to_recursive_line_30_to_38_0_#in~x.offset|) (= |#memory_int#6| |old(#memory_int#6)|) (= func_to_recursive_line_30_to_38_0_~y.offset |func_to_recursive_line_30_to_38_0_#in~y.offset|) (= |func_to_recursive_line_30_to_38_0_#in~a.base| func_to_recursive_line_30_to_38_0_~a.base)) .cse7)))) [2023-11-21 22:05:26,777 INFO L899 garLoopResultBuilder]: For program point func_to_recursive_line_30_to_38_0EXIT(lines 51 73) no Hoare annotation was computed. [2023-11-21 22:05:26,777 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 22:05:26,777 INFO L895 garLoopResultBuilder]: At program point L92(line 92) the Hoare annotation is: (and (= (+ |ULTIMATE.start_main_#t~mem26#1| (* |ULTIMATE.start_main_#t~mem29#1| |ULTIMATE.start_main_#t~mem28#1|)) (+ |ULTIMATE.start_main_#t~mem27#1| (* |ULTIMATE.start_main_#t~mem25#1| |ULTIMATE.start_main_#t~mem24#1|))) (let ((.cse0 (select (select |#memory_int#3| |ULTIMATE.start_main_~#x~0#1.base|) |ULTIMATE.start_main_~#x~0#1.offset|))) (= (+ (* .cse0 (select (select |#memory_int#5| |ULTIMATE.start_main_~#z~0#1.base|) |ULTIMATE.start_main_~#z~0#1.offset|)) (select (select |#memory_int#1| |ULTIMATE.start_main_~#a~0#1.base|) |ULTIMATE.start_main_~#a~0#1.offset|)) (+ (* (select (select |#memory_int#6| |ULTIMATE.start_main_~#az~0#1.base|) |ULTIMATE.start_main_~#az~0#1.offset|) (select (select |#memory_int#4| |ULTIMATE.start_main_~#y~0#1.base|) |ULTIMATE.start_main_~#y~0#1.offset|)) .cse0)))) [2023-11-21 22:05:26,777 INFO L895 garLoopResultBuilder]: At program point L91(line 91) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int#1| |ULTIMATE.start_main_~#a~0#1.base|) |ULTIMATE.start_main_~#a~0#1.offset|))) (and (= 1 (select (select |#memory_int#4| |ULTIMATE.start_main_~#y~0#1.base|) |ULTIMATE.start_main_~#y~0#1.offset|)) (= .cse0 (select (select |#memory_int#3| |ULTIMATE.start_main_~#x~0#1.base|) |ULTIMATE.start_main_~#x~0#1.offset|)) (= (* .cse0 (select (select |#memory_int#5| |ULTIMATE.start_main_~#z~0#1.base|) |ULTIMATE.start_main_~#z~0#1.offset|)) (select (select |#memory_int#6| |ULTIMATE.start_main_~#az~0#1.base|) |ULTIMATE.start_main_~#az~0#1.offset|)))) [2023-11-21 22:05:26,778 INFO L899 garLoopResultBuilder]: For program point L92-1(line 92) no Hoare annotation was computed. [2023-11-21 22:05:26,778 INFO L899 garLoopResultBuilder]: For program point L91-1(line 91) no Hoare annotation was computed. [2023-11-21 22:05:26,778 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 22:05:26,778 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 35 49) no Hoare annotation was computed. [2023-11-21 22:05:26,778 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 35 49) the Hoare annotation is: true [2023-11-21 22:05:26,778 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 42) no Hoare annotation was computed. [2023-11-21 22:05:26,778 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 47) no Hoare annotation was computed. [2023-11-21 22:05:26,779 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 41) no Hoare annotation was computed. [2023-11-21 22:05:26,779 INFO L899 garLoopResultBuilder]: For program point L37-2(lines 35 49) no Hoare annotation was computed. [2023-11-21 22:05:26,782 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-21 22:05:26,784 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:05:26,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:05:26 BoogieIcfgContainer [2023-11-21 22:05:26,789 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:05:26,790 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:05:26,790 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:05:26,790 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:05:26,791 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:04:57" (3/4) ... [2023-11-21 22:05:26,793 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 22:05:26,797 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure func_to_recursive_line_30_to_38_0 [2023-11-21 22:05:26,797 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-21 22:05:26,802 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-11-21 22:05:26,803 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-21 22:05:26,803 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-21 22:05:26,804 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 22:05:26,895 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:05:26,895 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 22:05:26,895 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:05:26,896 INFO L158 Benchmark]: Toolchain (without parser) took 30230.62ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 144.4MB in the beginning and 136.3MB in the end (delta: 8.1MB). Peak memory consumption was 85.7MB. Max. memory is 16.1GB. [2023-11-21 22:05:26,897 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 125.8MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:05:26,897 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.60ms. Allocated memory is still 172.0MB. Free memory was 144.4MB in the beginning and 132.9MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:05:26,897 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.40ms. Allocated memory is still 172.0MB. Free memory was 132.9MB in the beginning and 130.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:05:26,898 INFO L158 Benchmark]: Boogie Preprocessor took 50.32ms. Allocated memory is still 172.0MB. Free memory was 130.8MB in the beginning and 128.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:05:26,898 INFO L158 Benchmark]: RCFGBuilder took 551.13ms. Allocated memory is still 172.0MB. Free memory was 128.7MB in the beginning and 107.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 22:05:26,899 INFO L158 Benchmark]: TraceAbstraction took 29174.40ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 107.0MB in the beginning and 141.5MB in the end (delta: -34.5MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. [2023-11-21 22:05:26,899 INFO L158 Benchmark]: Witness Printer took 106.00ms. Allocated memory is still 249.6MB. Free memory was 141.5MB in the beginning and 136.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 22:05:26,901 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 125.8MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.60ms. Allocated memory is still 172.0MB. Free memory was 144.4MB in the beginning and 132.9MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.40ms. Allocated memory is still 172.0MB. Free memory was 132.9MB in the beginning and 130.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.32ms. Allocated memory is still 172.0MB. Free memory was 130.8MB in the beginning and 128.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 551.13ms. Allocated memory is still 172.0MB. Free memory was 128.7MB in the beginning and 107.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 29174.40ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 107.0MB in the beginning and 141.5MB in the end (delta: -34.5MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. * Witness Printer took 106.00ms. Allocated memory is still 249.6MB. Free memory was 141.5MB in the beginning and 136.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 41]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 29.1s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 5.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 128 mSDsluCounter, 256 SdHoareTripleChecker+Invalid, 5.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 215 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 523 IncrementalHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 41 mSDtfsCounter, 523 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 70 SyntacticMatches, 5 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 7.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=2, InterpolantAutomatonStates: 53, 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, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 22 PreInvPairs, 28 NumberOfFragments, 471 HoareAnnotationTreeSize, 22 FomulaSimplifications, 36 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 1651 FormulaSimplificationTreeSizeReductionInter, 6.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 12.4s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 116 ConstructedInterpolants, 7 QuantifiedInterpolants, 2997 SizeOfPredicates, 172 NumberOfNonLiveVariables, 1270 ConjunctsInSsa, 504 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 35/54 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-21 22:05:26,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_100af792-902e-4379-9180-fd5ad2adc918/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE