./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/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_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d611551bdd81171138955e09eec2c35a3c053022d643f86b25023a5ba282a01a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:23:40,471 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:23:40,551 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 00:23:40,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:23:40,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:23:40,586 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:23:40,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:23:40,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:23:40,587 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:23:40,588 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:23:40,588 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:23:40,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:23:40,590 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:23:40,590 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:23:40,591 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:23:40,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:23:40,592 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:23:40,592 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:23:40,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:23:40,593 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:23:40,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:23:40,594 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:23:40,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:23:40,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:23:40,595 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:23:40,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:23:40,596 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:23:40,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:23:40,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:23:40,598 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:23:40,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:23:40,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:23:40,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:23:40,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:23:40,599 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:23:40,600 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:23:40,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:23:40,600 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:23:40,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:23:40,600 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:23:40,601 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:23:40,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:23:40,601 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_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d611551bdd81171138955e09eec2c35a3c053022d643f86b25023a5ba282a01a [2023-11-29 00:23:40,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:23:40,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:23:40,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:23:40,871 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:23:40,871 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:23:40,872 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c [2023-11-29 00:23:43,592 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:23:43,763 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:23:43,764 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c [2023-11-29 00:23:43,770 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/data/6a7486a87/ea9203c9380b4c6bba22ea3749b031d8/FLAG51b9554d7 [2023-11-29 00:23:43,781 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/data/6a7486a87/ea9203c9380b4c6bba22ea3749b031d8 [2023-11-29 00:23:43,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:23:43,784 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:23:43,785 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:23:43,785 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:23:43,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:23:43,791 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:23:43" (1/1) ... [2023-11-29 00:23:43,792 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4887a23c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:43, skipping insertion in model container [2023-11-29 00:23:43,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:23:43" (1/1) ... [2023-11-29 00:23:43,816 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:23:43,943 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_7ea5e105-2e2c-4658-85ad-bcde504db5cd/sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c[1055,1068] [2023-11-29 00:23:43,959 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:23:43,967 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:23:43,980 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_7ea5e105-2e2c-4658-85ad-bcde504db5cd/sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c[1055,1068] [2023-11-29 00:23:43,991 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:23:44,006 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:23:44,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44 WrapperNode [2023-11-29 00:23:44,007 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:23:44,008 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:23:44,008 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:23:44,009 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:23:44,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,025 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,045 INFO L138 Inliner]: procedures = 16, calls = 66, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 84 [2023-11-29 00:23:44,046 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:23:44,047 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:23:44,047 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:23:44,047 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:23:44,055 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,058 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,076 INFO L175 MemorySlicer]: Split 36 memory accesses to 8 slices as follows [2, 3, 2, 6, 6, 4, 5, 8]. 22 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0]. The 10 writes are split as follows [0, 1, 1, 1, 1, 2, 2, 2]. [2023-11-29 00:23:44,077 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,077 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,090 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,094 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:23:44,095 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:23:44,095 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:23:44,096 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:23:44,096 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:23:44,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:44,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:23:44,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:23:44,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:23:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:23:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 00:23:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 00:23:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 00:23:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 00:23:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 00:23:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 00:23:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-29 00:23:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:23:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 00:23:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 00:23:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 00:23:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 00:23:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 00:23:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 00:23:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 00:23:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-29 00:23:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_38_0 [2023-11-29 00:23:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_38_0 [2023-11-29 00:23:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:23:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:23:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 00:23:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 00:23:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 00:23:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 00:23:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 00:23:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 00:23:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 00:23:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-29 00:23:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 00:23:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 00:23:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:23:44,270 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:23:44,273 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:23:44,475 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:23:44,512 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:23:44,512 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 00:23:44,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:23:44 BoogieIcfgContainer [2023-11-29 00:23:44,513 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:23:44,515 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:23:44,515 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:23:44,518 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:23:44,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:23:43" (1/3) ... [2023-11-29 00:23:44,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac84888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:23:44, skipping insertion in model container [2023-11-29 00:23:44,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (2/3) ... [2023-11-29 00:23:44,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac84888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:23:44, skipping insertion in model container [2023-11-29 00:23:44,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:23:44" (3/3) ... [2023-11-29 00:23:44,521 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_geo3-ll.c [2023-11-29 00:23:44,536 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:23:44,536 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 00:23:44,575 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:23:44,582 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;@8d4d078, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:23:44,582 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 00:23:44,585 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) [2023-11-29 00:23:44,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 00:23:44,593 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:44,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:44,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:23:44,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:44,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1288934217, now seen corresponding path program 1 times [2023-11-29 00:23:44,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:44,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907358046] [2023-11-29 00:23:44,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:44,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:44,702 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:44,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [378316466] [2023-11-29 00:23:44,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:44,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:44,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:44,705 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:44,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 00:23:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:44,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 88 conjunts are in the unsatisfiable core [2023-11-29 00:23:44,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:44,984 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 [2023-11-29 00:23:45,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 00:23:45,020 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 [2023-11-29 00:23:45,041 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 [2023-11-29 00:23:45,049 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 [2023-11-29 00:23:45,355 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 [2023-11-29 00:23:45,365 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 39 treesize of output 23 [2023-11-29 00:23:45,373 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 [2023-11-29 00:23:45,379 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 [2023-11-29 00:23:45,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:23:45,440 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:23:45,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:45,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907358046] [2023-11-29 00:23:45,441 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:45,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378316466] [2023-11-29 00:23:45,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378316466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:45,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:45,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 00:23:45,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148387538] [2023-11-29 00:23:45,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:45,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:23:45,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:45,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:23:45,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:23:45,479 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) [2023-11-29 00:23:45,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:45,959 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2023-11-29 00:23:45,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:23:45,961 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 [2023-11-29 00:23:45,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:45,967 INFO L225 Difference]: With dead ends: 52 [2023-11-29 00:23:45,967 INFO L226 Difference]: Without dead ends: 31 [2023-11-29 00:23:45,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:23:45,973 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 15 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:45,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 72 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:23:45,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-29 00:23:46,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2023-11-29 00:23:46,005 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) [2023-11-29 00:23:46,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2023-11-29 00:23:46,007 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 8 [2023-11-29 00:23:46,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:46,007 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2023-11-29 00:23:46,008 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) [2023-11-29 00:23:46,008 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2023-11-29 00:23:46,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 00:23:46,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:46,009 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:46,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:23:46,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:46,210 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:23:46,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:46,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1531368910, now seen corresponding path program 1 times [2023-11-29 00:23:46,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:46,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890377806] [2023-11-29 00:23:46,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:46,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:46,238 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:46,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [424512585] [2023-11-29 00:23:46,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:46,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:46,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:46,240 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:46,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 00:23:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:46,559 WARN L260 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 163 conjunts are in the unsatisfiable core [2023-11-29 00:23:46,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:46,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 00:23:46,607 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 [2023-11-29 00:23:46,616 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 [2023-11-29 00:23:46,626 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 [2023-11-29 00:23:46,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 00:23:46,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 00:23:47,432 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 [2023-11-29 00:23:47,462 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 [2023-11-29 00:23:47,689 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 [2023-11-29 00:23:47,698 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 [2023-11-29 00:23:47,704 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 [2023-11-29 00:23:47,709 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 [2023-11-29 00:23:47,716 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 [2023-11-29 00:23:47,800 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:23:47,800 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:49,184 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:23:49,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:49,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890377806] [2023-11-29 00:23:49,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:49,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424512585] [2023-11-29 00:23:49,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424512585] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:23:49,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:23:49,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 22 [2023-11-29 00:23:49,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005130473] [2023-11-29 00:23:49,186 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:49,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 00:23:49,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:49,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 00:23:49,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2023-11-29 00:23:49,189 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 22 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 15 states have internal predecessors, (25), 8 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:23:57,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:23:57,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:57,741 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2023-11-29 00:23:57,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 00:23:57,742 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 15 states have internal predecessors, (25), 8 states have call successors, (8), 8 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 [2023-11-29 00:23:57,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:57,744 INFO L225 Difference]: With dead ends: 57 [2023-11-29 00:23:57,745 INFO L226 Difference]: Without dead ends: 51 [2023-11-29 00:23:57,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=156, Invalid=836, Unknown=0, NotChecked=0, Total=992 [2023-11-29 00:23:57,747 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 57 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:57,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 114 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-11-29 00:23:57,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-29 00:23:57,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 43. [2023-11-29 00:23:57,760 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) [2023-11-29 00:23:57,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2023-11-29 00:23:57,762 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 18 [2023-11-29 00:23:57,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:57,762 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2023-11-29 00:23:57,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 15 states have internal predecessors, (25), 8 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:23:57,763 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2023-11-29 00:23:57,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 00:23:57,764 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:57,764 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:57,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 00:23:57,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:57,964 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:23:57,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:57,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1152056984, now seen corresponding path program 1 times [2023-11-29 00:23:57,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:57,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348928544] [2023-11-29 00:23:57,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:57,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:57,981 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:57,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1720595783] [2023-11-29 00:23:57,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:57,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:57,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:57,982 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:57,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 00:23:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:58,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 103 conjunts are in the unsatisfiable core [2023-11-29 00:23:58,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:58,137 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 [2023-11-29 00:23:58,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 00:23:58,149 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 [2023-11-29 00:23:58,155 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 [2023-11-29 00:23:58,162 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 [2023-11-29 00:23:58,225 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 11 treesize of output 7 [2023-11-29 00:23:58,743 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 25 treesize of output 17 [2023-11-29 00:23:58,749 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 32 treesize of output 20 [2023-11-29 00:23:58,754 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 19 [2023-11-29 00:23:58,761 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 [2023-11-29 00:24:05,330 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:24:05,330 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:24:15,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:24:15,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:15,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348928544] [2023-11-29 00:24:15,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:24:15,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720595783] [2023-11-29 00:24:15,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720595783] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:24:15,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:24:15,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 22 [2023-11-29 00:24:15,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022679404] [2023-11-29 00:24:15,497 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:24:15,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 00:24:15,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:15,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 00:24:15,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=389, Unknown=2, NotChecked=0, Total=462 [2023-11-29 00:24:15,498 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 22 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 17 states have internal predecessors, (25), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 00:24:18,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:24:20,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:24:25,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:25,076 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2023-11-29 00:24:25,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 00:24:25,076 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 17 states have internal predecessors, (25), 6 states have call successors, (6), 5 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 [2023-11-29 00:24:25,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:25,077 INFO L225 Difference]: With dead ends: 53 [2023-11-29 00:24:25,077 INFO L226 Difference]: Without dead ends: 39 [2023-11-29 00:24:25,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=170, Invalid=883, Unknown=3, NotChecked=0, Total=1056 [2023-11-29 00:24:25,079 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 47 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:25,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 40 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-29 00:24:25,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-29 00:24:25,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-29 00:24:25,092 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) [2023-11-29 00:24:25,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2023-11-29 00:24:25,094 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 18 [2023-11-29 00:24:25,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:25,094 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2023-11-29 00:24:25,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 17 states have internal predecessors, (25), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 00:24:25,094 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2023-11-29 00:24:25,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 00:24:25,096 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:24:25,096 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] [2023-11-29 00:24:25,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 00:24:25,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:25,297 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:24:25,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:25,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1534841428, now seen corresponding path program 1 times [2023-11-29 00:24:25,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:25,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972223643] [2023-11-29 00:24:25,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:25,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:25,317 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:24:25,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [301710491] [2023-11-29 00:24:25,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:25,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:25,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:25,319 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:25,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 00:24:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:25,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 172 conjunts are in the unsatisfiable core [2023-11-29 00:24:25,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:24:25,497 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 [2023-11-29 00:24:25,502 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 [2023-11-29 00:24:25,510 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 [2023-11-29 00:24:27,342 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 00:24:27,342 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 77 treesize of output 73 [2023-11-29 00:24:27,359 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 00:24:27,359 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 93 treesize of output 81 [2023-11-29 00:24:27,375 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 00:24:27,375 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 73 treesize of output 57 [2023-11-29 00:24:27,384 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 32 treesize of output 24 [2023-11-29 00:24:27,388 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 19 [2023-11-29 00:24:32,662 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 9 refuted. 3 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-29 00:24:32,662 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:24:36,591 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 00:24:36,591 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 67 [2023-11-29 00:24:36,604 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 00:24:36,604 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 56 treesize of output 59 [2023-11-29 00:24:51,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:51,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972223643] [2023-11-29 00:24:51,569 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:24:51,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301710491] [2023-11-29 00:24:51,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301710491] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:24:51,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:24:51,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 00:24:51,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549834945] [2023-11-29 00:24:51,569 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:24:51,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 00:24:51,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:51,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 00:24:51,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=289, Unknown=3, NotChecked=0, Total=342 [2023-11-29 00:24:51,571 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 13 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 00:24:56,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:24:57,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:57,030 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2023-11-29 00:24:57,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 00:24:57,031 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 4 states have call successors, (5), 2 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 [2023-11-29 00:24:57,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:57,031 INFO L225 Difference]: With dead ends: 39 [2023-11-29 00:24:57,032 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 00:24:57,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 23.8s TimeCoverageRelationStatistics Valid=105, Invalid=542, Unknown=3, NotChecked=0, Total=650 [2023-11-29 00:24:57,033 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 16 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:57,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 42 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 110 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2023-11-29 00:24:57,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 00:24:57,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 00:24:57,034 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) [2023-11-29 00:24:57,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 00:24:57,035 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2023-11-29 00:24:57,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:57,035 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 00:24:57,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 00:24:57,035 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 00:24:57,035 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 00:24:57,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 00:24:57,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 00:24:57,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:57,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 00:25:26,825 WARN L293 SmtUtils]: Spent 23.60s on a formula simplification. DAG size of input: 173 DAG size of output: 122 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-11-29 00:25:35,723 WARN L293 SmtUtils]: Spent 8.89s on a formula simplification. DAG size of input: 229 DAG size of output: 127 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-11-29 00:25:44,078 WARN L293 SmtUtils]: Spent 8.35s on a formula simplification. DAG size of input: 134 DAG size of output: 84 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-11-29 00:25:44,128 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 63) no Hoare annotation was computed. [2023-11-29 00:25:44,129 INFO L895 garLoopResultBuilder]: At program point L56(line 56) the Hoare annotation is: (let ((.cse6 (select |#memory_int#4| |func_to_recursive_line_30_to_38_0_#in~a.base|))) (let ((.cse7 (select |old(#memory_int#6)| |func_to_recursive_line_30_to_38_0_#in~y.base|)) (.cse3 (select (select |#memory_int#1| |func_to_recursive_line_30_to_38_0_#in~az.base|) |func_to_recursive_line_30_to_38_0_#in~az.offset|)) (.cse1 (select (select |#memory_int#3| |func_to_recursive_line_30_to_38_0_#in~z.base|) |func_to_recursive_line_30_to_38_0_#in~z.offset|)) (.cse2 (select .cse6 |func_to_recursive_line_30_to_38_0_#in~a.offset|)) (.cse5 (select |old(#memory_int#7)| |func_to_recursive_line_30_to_38_0_#in~x.base|))) (let ((.cse4 (not (let ((.cse8 (select .cse5 |func_to_recursive_line_30_to_38_0_#in~x.offset|))) (= (+ .cse8 (* (select .cse7 |func_to_recursive_line_30_to_38_0_#in~y.offset|) .cse3)) (+ (* .cse8 .cse1) .cse2)))))) (and (or (forall ((|v_ULTIMATE.start_main_~#az~0#1.base_BEFORE_CALL_3| Int) (|v_ULTIMATE.start_main_~#a~0#1.base_BEFORE_CALL_3| Int) (|v_ULTIMATE.start_main_~#z~0#1.base_BEFORE_CALL_3| Int)) (not (= (select (select |#memory_int#1| |v_ULTIMATE.start_main_~#az~0#1.base_BEFORE_CALL_3|) 0) (* (select (select |#memory_int#4| |v_ULTIMATE.start_main_~#a~0#1.base_BEFORE_CALL_3|) 0) (select (select |#memory_int#3| |v_ULTIMATE.start_main_~#z~0#1.base_BEFORE_CALL_3|) 0))))) (let ((.cse0 (select (select |#memory_int#7| |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~mem5| .cse0) (= |func_to_recursive_line_30_to_38_0_#t~mem9| (select (select |#memory_int#6| |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|) (= |func_to_recursive_line_30_to_38_0_#t~mem4| .cse1) (= 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_~y.base |func_to_recursive_line_30_to_38_0_#in~y.base|) (= |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|) (= .cse2 |func_to_recursive_line_30_to_38_0_#t~mem7|) (= |func_to_recursive_line_30_to_38_0_#t~mem8| .cse3) (= |func_to_recursive_line_30_to_38_0_#in~a.base| func_to_recursive_line_30_to_38_0_~a.base) (= |#memory_int#7| |old(#memory_int#7)|) (= |func_to_recursive_line_30_to_38_0_#t~mem6| .cse0))) .cse4) (or (and (= func_to_recursive_line_30_to_38_0_~c.offset 0) (= (select (select |#memory_int#5| |func_to_recursive_line_30_to_38_0_#in~c.base|) 0) 1) (= (select (select |#memory_int#5| func_to_recursive_line_30_to_38_0_~c.base) 0) 1)) (not (= |func_to_recursive_line_30_to_38_0_#in~x.offset| 0)) (not (= |func_to_recursive_line_30_to_38_0_#in~y.offset| 0)) (not (= 0 |func_to_recursive_line_30_to_38_0_#in~z.offset|)) (not (= 1 (select (select |old(#memory_int#5)| |func_to_recursive_line_30_to_38_0_#in~c.base|) 0))) .cse4 (not (= |func_to_recursive_line_30_to_38_0_#in~c.offset| 0)) (not (= |func_to_recursive_line_30_to_38_0_#in~a.offset| 0)) (not (= |func_to_recursive_line_30_to_38_0_#in~az.offset| 0)) (not (= (select .cse5 0) (select .cse6 0))) (not (= (select .cse7 0) 1))))))) [2023-11-29 00:25:44,129 INFO L899 garLoopResultBuilder]: For program point L56-1(line 56) no Hoare annotation was computed. [2023-11-29 00:25:44,129 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 72) no Hoare annotation was computed. [2023-11-29 00:25:44,129 INFO L899 garLoopResultBuilder]: For program point L53-1(lines 51 73) no Hoare annotation was computed. [2023-11-29 00:25:44,130 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 51 73) the Hoare annotation is: (let ((.cse3 (select |old(#memory_int#6)| |func_to_recursive_line_30_to_38_0_#in~y.base|)) (.cse2 (select |#memory_int#4| |func_to_recursive_line_30_to_38_0_#in~a.base|)) (.cse1 (select |old(#memory_int#7)| |func_to_recursive_line_30_to_38_0_#in~x.base|))) (let ((.cse0 (not (let ((.cse4 (select .cse1 |func_to_recursive_line_30_to_38_0_#in~x.offset|))) (= (+ .cse4 (* (select .cse3 |func_to_recursive_line_30_to_38_0_#in~y.offset|) (select (select |#memory_int#1| |func_to_recursive_line_30_to_38_0_#in~az.base|) |func_to_recursive_line_30_to_38_0_#in~az.offset|))) (+ (* .cse4 (select (select |#memory_int#3| |func_to_recursive_line_30_to_38_0_#in~z.base|) |func_to_recursive_line_30_to_38_0_#in~z.offset|)) (select .cse2 |func_to_recursive_line_30_to_38_0_#in~a.offset|))))))) (and (or (not (= |func_to_recursive_line_30_to_38_0_#in~x.offset| 0)) (not (= |func_to_recursive_line_30_to_38_0_#in~y.offset| 0)) (not (= 0 |func_to_recursive_line_30_to_38_0_#in~z.offset|)) (not (= 1 (select (select |old(#memory_int#5)| |func_to_recursive_line_30_to_38_0_#in~c.base|) 0))) .cse0 (not (= |func_to_recursive_line_30_to_38_0_#in~c.offset| 0)) (= (select (select |#memory_int#5| |func_to_recursive_line_30_to_38_0_#in~c.base|) 0) 1) (not (= |func_to_recursive_line_30_to_38_0_#in~a.offset| 0)) (not (= |func_to_recursive_line_30_to_38_0_#in~az.offset| 0)) (not (= (select .cse1 0) (select .cse2 0))) (not (= (select .cse3 0) 1))) (or (forall ((|v_ULTIMATE.start_main_~#az~0#1.base_BEFORE_CALL_3| Int) (|v_ULTIMATE.start_main_~#a~0#1.base_BEFORE_CALL_3| Int) (|v_ULTIMATE.start_main_~#z~0#1.base_BEFORE_CALL_3| Int)) (not (= (select (select |#memory_int#1| |v_ULTIMATE.start_main_~#az~0#1.base_BEFORE_CALL_3|) 0) (* (select (select |#memory_int#4| |v_ULTIMATE.start_main_~#a~0#1.base_BEFORE_CALL_3|) 0) (select (select |#memory_int#3| |v_ULTIMATE.start_main_~#z~0#1.base_BEFORE_CALL_3|) 0))))) .cse0 (and (= |#memory_int#6| |old(#memory_int#6)|) (= |#memory_int#7| |old(#memory_int#7)|)))))) [2023-11-29 00:25:44,130 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (let ((.cse9 (select |old(#memory_int#6)| |func_to_recursive_line_30_to_38_0_#in~y.base|)) (.cse8 (select |#memory_int#4| |func_to_recursive_line_30_to_38_0_#in~a.base|)) (.cse7 (select |old(#memory_int#7)| |func_to_recursive_line_30_to_38_0_#in~x.base|))) (let ((.cse2 (select |#memory_int#4| func_to_recursive_line_30_to_38_0_~a.base)) (.cse5 (select |#memory_int#3| func_to_recursive_line_30_to_38_0_~z.base)) (.cse4 (select |#memory_int#6| func_to_recursive_line_30_to_38_0_~y.base)) (.cse3 (select |#memory_int#7| func_to_recursive_line_30_to_38_0_~x.base)) (.cse6 (not (let ((.cse11 (select .cse7 |func_to_recursive_line_30_to_38_0_#in~x.offset|))) (= (+ .cse11 (* (select .cse9 |func_to_recursive_line_30_to_38_0_#in~y.offset|) (select (select |#memory_int#1| |func_to_recursive_line_30_to_38_0_#in~az.base|) |func_to_recursive_line_30_to_38_0_#in~az.offset|))) (+ (* .cse11 (select (select |#memory_int#3| |func_to_recursive_line_30_to_38_0_#in~z.base|) |func_to_recursive_line_30_to_38_0_#in~z.offset|)) (select .cse8 |func_to_recursive_line_30_to_38_0_#in~a.offset|))))))) (and (or (not (= |func_to_recursive_line_30_to_38_0_#in~x.offset| 0)) (not (= |func_to_recursive_line_30_to_38_0_#in~y.offset| 0)) (not (= 0 |func_to_recursive_line_30_to_38_0_#in~z.offset|)) (let ((.cse1 (select .cse5 0))) (and (= (let ((.cse0 (select .cse2 0))) (+ .cse0 (* .cse0 .cse1))) (select .cse3 0)) (= (select .cse4 0) .cse1))) (not (= 1 (select (select |old(#memory_int#5)| |func_to_recursive_line_30_to_38_0_#in~c.base|) 0))) .cse6 (not (= |func_to_recursive_line_30_to_38_0_#in~c.offset| 0)) (not (= |func_to_recursive_line_30_to_38_0_#in~a.offset| 0)) (not (= |func_to_recursive_line_30_to_38_0_#in~az.offset| 0)) (not (= (select .cse7 0) (select .cse8 0))) (not (= (select .cse9 0) 1))) (or (forall ((|v_ULTIMATE.start_main_~#az~0#1.base_BEFORE_CALL_3| Int) (|v_ULTIMATE.start_main_~#a~0#1.base_BEFORE_CALL_3| Int) (|v_ULTIMATE.start_main_~#z~0#1.base_BEFORE_CALL_3| Int)) (not (= (select (select |#memory_int#1| |v_ULTIMATE.start_main_~#az~0#1.base_BEFORE_CALL_3|) 0) (* (select (select |#memory_int#4| |v_ULTIMATE.start_main_~#a~0#1.base_BEFORE_CALL_3|) 0) (select (select |#memory_int#3| |v_ULTIMATE.start_main_~#z~0#1.base_BEFORE_CALL_3|) 0))))) (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|) (let ((.cse10 (select .cse3 func_to_recursive_line_30_to_38_0_~x.offset))) (= (+ (select .cse2 func_to_recursive_line_30_to_38_0_~a.offset) (* .cse10 (select .cse5 func_to_recursive_line_30_to_38_0_~z.offset))) (+ .cse10 (* (select .cse4 func_to_recursive_line_30_to_38_0_~y.offset) (select (select |#memory_int#1| func_to_recursive_line_30_to_38_0_~az.base) func_to_recursive_line_30_to_38_0_~az.offset))))) (= 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_~y.base |func_to_recursive_line_30_to_38_0_#in~y.base|) (= |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|) (= 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)) .cse6)))) [2023-11-29 00:25:44,130 INFO L899 garLoopResultBuilder]: For program point func_to_recursive_line_30_to_38_0EXIT(lines 51 73) no Hoare annotation was computed. [2023-11-29 00:25:44,130 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 00:25:44,130 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#7| |ULTIMATE.start_main_~#x~0#1.base|) |ULTIMATE.start_main_~#x~0#1.offset|))) (= (+ .cse0 (* (select (select |#memory_int#6| |ULTIMATE.start_main_~#y~0#1.base|) |ULTIMATE.start_main_~#y~0#1.offset|) (select (select |#memory_int#1| |ULTIMATE.start_main_~#az~0#1.base|) |ULTIMATE.start_main_~#az~0#1.offset|))) (+ (* .cse0 (select (select |#memory_int#3| |ULTIMATE.start_main_~#z~0#1.base|) |ULTIMATE.start_main_~#z~0#1.offset|)) (select (select |#memory_int#4| |ULTIMATE.start_main_~#a~0#1.base|) |ULTIMATE.start_main_~#a~0#1.offset|)))) (exists ((|v_ULTIMATE.start_main_~#az~0#1.base_BEFORE_CALL_3| Int) (|v_ULTIMATE.start_main_~#a~0#1.base_BEFORE_CALL_3| Int) (|v_ULTIMATE.start_main_~#z~0#1.base_BEFORE_CALL_3| Int)) (= (select (select |#memory_int#1| |v_ULTIMATE.start_main_~#az~0#1.base_BEFORE_CALL_3|) 0) (* (select (select |#memory_int#4| |v_ULTIMATE.start_main_~#a~0#1.base_BEFORE_CALL_3|) 0) (select (select |#memory_int#3| |v_ULTIMATE.start_main_~#z~0#1.base_BEFORE_CALL_3|) 0))))) [2023-11-29 00:25:44,131 INFO L895 garLoopResultBuilder]: At program point L91(line 91) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int#4| |ULTIMATE.start_main_~#a~0#1.base|) 0))) (and (= |ULTIMATE.start_main_~#z~0#1.offset| 0) (= (select (select |#memory_int#6| |ULTIMATE.start_main_~#y~0#1.base|) 0) 1) (= |ULTIMATE.start_main_~#y~0#1.offset| 0) (= (select (select |#memory_int#5| |ULTIMATE.start_main_~#c~0#1.base|) 0) 1) (= |ULTIMATE.start_main_~#az~0#1.offset| 0) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (= (select (select |#memory_int#1| |ULTIMATE.start_main_~#az~0#1.base|) 0) (* (select (select |#memory_int#3| |ULTIMATE.start_main_~#z~0#1.base|) 0) .cse0)) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= (select (select |#memory_int#7| |ULTIMATE.start_main_~#x~0#1.base|) 0) .cse0) (= |ULTIMATE.start_main_~#c~0#1.offset| 0))) [2023-11-29 00:25:44,131 INFO L899 garLoopResultBuilder]: For program point L92-1(line 92) no Hoare annotation was computed. [2023-11-29 00:25:44,131 INFO L899 garLoopResultBuilder]: For program point L91-1(line 91) no Hoare annotation was computed. [2023-11-29 00:25:44,131 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 00:25:44,131 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 35 49) no Hoare annotation was computed. [2023-11-29 00:25:44,131 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 35 49) the Hoare annotation is: true [2023-11-29 00:25:44,131 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 42) no Hoare annotation was computed. [2023-11-29 00:25:44,131 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 47) no Hoare annotation was computed. [2023-11-29 00:25:44,132 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 41) no Hoare annotation was computed. [2023-11-29 00:25:44,132 INFO L899 garLoopResultBuilder]: For program point L37-2(lines 35 49) no Hoare annotation was computed. [2023-11-29 00:25:44,134 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-29 00:25:44,136 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 00:25:44,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 12:25:44 BoogieIcfgContainer [2023-11-29 00:25:44,139 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 00:25:44,140 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 00:25:44,140 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 00:25:44,140 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 00:25:44,140 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:23:44" (3/4) ... [2023-11-29 00:25:44,142 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 00:25:44,145 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure func_to_recursive_line_30_to_38_0 [2023-11-29 00:25:44,145 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-29 00:25:44,150 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-11-29 00:25:44,150 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-29 00:25:44,150 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 00:25:44,150 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 00:25:44,252 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 00:25:44,252 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 00:25:44,252 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 00:25:44,253 INFO L158 Benchmark]: Toolchain (without parser) took 120469.13ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 159.6MB in the beginning and 118.5MB in the end (delta: 41.1MB). Peak memory consumption was 78.5MB. Max. memory is 16.1GB. [2023-11-29 00:25:44,253 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 123.7MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:25:44,254 INFO L158 Benchmark]: CACSL2BoogieTranslator took 222.48ms. Allocated memory is still 188.7MB. Free memory was 159.4MB in the beginning and 152.0MB in the end (delta: 7.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 00:25:44,254 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.92ms. Allocated memory is still 188.7MB. Free memory was 152.0MB in the beginning and 150.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:25:44,255 INFO L158 Benchmark]: Boogie Preprocessor took 47.71ms. Allocated memory is still 188.7MB. Free memory was 150.8MB in the beginning and 147.8MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 00:25:44,255 INFO L158 Benchmark]: RCFGBuilder took 417.76ms. Allocated memory is still 188.7MB. Free memory was 147.8MB in the beginning and 151.0MB in the end (delta: -3.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 00:25:44,255 INFO L158 Benchmark]: TraceAbstraction took 119624.28ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 149.9MB in the beginning and 122.7MB in the end (delta: 27.2MB). Peak memory consumption was 124.7MB. Max. memory is 16.1GB. [2023-11-29 00:25:44,256 INFO L158 Benchmark]: Witness Printer took 112.68ms. Allocated memory is still 226.5MB. Free memory was 122.7MB in the beginning and 118.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 00:25:44,258 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 123.7MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 222.48ms. Allocated memory is still 188.7MB. Free memory was 159.4MB in the beginning and 152.0MB in the end (delta: 7.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.92ms. Allocated memory is still 188.7MB. Free memory was 152.0MB in the beginning and 150.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.71ms. Allocated memory is still 188.7MB. Free memory was 150.8MB in the beginning and 147.8MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 417.76ms. Allocated memory is still 188.7MB. Free memory was 147.8MB in the beginning and 151.0MB in the end (delta: -3.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 119624.28ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 149.9MB in the beginning and 122.7MB in the end (delta: 27.2MB). Peak memory consumption was 124.7MB. Max. memory is 16.1GB. * Witness Printer took 112.68ms. Allocated memory is still 226.5MB. Free memory was 122.7MB in the beginning and 118.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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: 119.6s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 24.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 46.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 137 SdHoareTripleChecker+Valid, 16.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 135 mSDsluCounter, 268 SdHoareTripleChecker+Invalid, 16.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 229 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 627 IncrementalHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 39 mSDtfsCounter, 627 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 49.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=2, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 22 PreInvPairs, 28 NumberOfFragments, 777 HoareAnnotationTreeSize, 22 FomulaSimplifications, 68 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 2387 FormulaSimplificationTreeSizeReductionInter, 46.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 46.7s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 116 ConstructedInterpolants, 54 QuantifiedInterpolants, 3962 SizeOfPredicates, 177 NumberOfNonLiveVariables, 1200 ConjunctsInSsa, 526 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 33/54 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! [2023-11-29 00:25:44,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea5e105-2e2c-4658-85ad-bcde504db5cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE