./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-1.i --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_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fdc85b042221b41aa26e62667e19ce1f6c246be9a2cb4f81fe8b15c8429db160 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:42:29,844 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:42:29,937 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 12:42:29,943 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:42:29,944 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:42:29,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:42:29,975 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:42:29,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:42:29,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:42:29,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:42:29,978 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:42:29,979 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:42:29,979 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:42:29,980 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:42:29,981 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:42:29,981 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:42:29,982 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:42:29,982 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:42:29,983 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:42:29,983 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:42:29,984 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:42:29,985 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:42:29,986 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:42:29,987 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:42:29,987 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:42:29,988 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:42:29,988 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:42:29,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:42:29,989 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:42:29,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:42:29,990 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:42:29,990 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:42:29,991 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:42:29,991 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:42:29,992 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:42:29,992 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:42:29,992 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:42:29,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:42:29,993 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:42:29,993 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:42:29,994 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:42:29,994 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:42:29,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:42:29,994 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:42:29,995 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:42:29,995 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:42:29,995 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:42:29,995 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdc85b042221b41aa26e62667e19ce1f6c246be9a2cb4f81fe8b15c8429db160 [2023-12-02 12:42:30,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:42:30,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:42:30,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:42:30,281 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:42:30,281 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:42:30,283 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-1.i [2023-12-02 12:42:33,631 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:42:33,940 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:42:33,941 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-1.i [2023-12-02 12:42:33,963 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/data/d5044c4e0/2e859aa0b57a4445a98eb3a06eff00dd/FLAGcd7b6a212 [2023-12-02 12:42:33,980 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/data/d5044c4e0/2e859aa0b57a4445a98eb3a06eff00dd [2023-12-02 12:42:33,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:42:33,984 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:42:33,986 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:42:33,986 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:42:33,991 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:42:33,992 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:42:33" (1/1) ... [2023-12-02 12:42:33,993 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7f6748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:33, skipping insertion in model container [2023-12-02 12:42:33,994 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:42:33" (1/1) ... [2023-12-02 12:42:34,058 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:42:34,484 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_de739a54-2a37-47a0-8896-47730775f74f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-1.i[33519,33532] [2023-12-02 12:42:34,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:42:34,580 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:42:34,618 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_de739a54-2a37-47a0-8896-47730775f74f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-1.i[33519,33532] [2023-12-02 12:42:34,660 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:42:34,705 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:42:34,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:34 WrapperNode [2023-12-02 12:42:34,706 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:42:34,707 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:42:34,707 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:42:34,707 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:42:34,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:34" (1/1) ... [2023-12-02 12:42:34,747 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:34" (1/1) ... [2023-12-02 12:42:34,803 INFO L138 Inliner]: procedures = 177, calls = 176, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 751 [2023-12-02 12:42:34,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:42:34,804 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:42:34,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:42:34,805 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:42:34,817 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:34" (1/1) ... [2023-12-02 12:42:34,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:34" (1/1) ... [2023-12-02 12:42:34,829 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:34" (1/1) ... [2023-12-02 12:42:34,829 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:34" (1/1) ... [2023-12-02 12:42:34,870 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:34" (1/1) ... [2023-12-02 12:42:34,880 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:34" (1/1) ... [2023-12-02 12:42:34,885 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:34" (1/1) ... [2023-12-02 12:42:34,890 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:34" (1/1) ... [2023-12-02 12:42:34,900 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:42:34,901 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:42:34,901 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:42:34,901 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:42:34,902 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:34" (1/1) ... [2023-12-02 12:42:34,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:42:34,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:42:34,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:42:34,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:42:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 12:42:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 12:42:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 12:42:34,971 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 12:42:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 12:42:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:42:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 12:42:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 12:42:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 12:42:34,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 12:42:34,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:42:34,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:42:34,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:42:35,157 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:42:35,159 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:42:36,205 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:42:37,069 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:42:37,070 INFO L309 CfgBuilder]: Removed 31 assume(true) statements. [2023-12-02 12:42:37,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:42:37 BoogieIcfgContainer [2023-12-02 12:42:37,072 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:42:37,074 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:42:37,074 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:42:37,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:42:37,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:42:33" (1/3) ... [2023-12-02 12:42:37,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ebd7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:42:37, skipping insertion in model container [2023-12-02 12:42:37,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:34" (2/3) ... [2023-12-02 12:42:37,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ebd7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:42:37, skipping insertion in model container [2023-12-02 12:42:37,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:42:37" (3/3) ... [2023-12-02 12:42:37,080 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test1-1.i [2023-12-02 12:42:37,102 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:42:37,102 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 12:42:37,164 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:42:37,172 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=FINITE_AUTOMATA, 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;@1bab7104, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:42:37,173 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 12:42:37,178 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 56 states have (on average 1.7142857142857142) internal successors, (96), 57 states have internal predecessors, (96), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 12:42:37,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 12:42:37,186 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:42:37,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 12:42:37,187 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:42:37,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:42:37,194 INFO L85 PathProgramCache]: Analyzing trace with hash 762153636, now seen corresponding path program 1 times [2023-12-02 12:42:37,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:42:37,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039468261] [2023-12-02 12:42:37,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:42:37,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:42:37,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:42:37,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:42:37,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:42:37,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039468261] [2023-12-02 12:42:37,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039468261] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:42:37,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:42:37,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 12:42:37,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385950288] [2023-12-02 12:42:37,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:42:37,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:42:37,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:42:37,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:42:37,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:42:37,470 INFO L87 Difference]: Start difference. First operand has 62 states, 56 states have (on average 1.7142857142857142) internal successors, (96), 57 states have internal predecessors, (96), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-12-02 12:42:39,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:42:41,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:42:43,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:42:45,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:42:47,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:42:49,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:42:50,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:42:50,851 INFO L93 Difference]: Finished difference Result 175 states and 294 transitions. [2023-12-02 12:42:50,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:42:50,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2023-12-02 12:42:50,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:42:50,869 INFO L225 Difference]: With dead ends: 175 [2023-12-02 12:42:50,869 INFO L226 Difference]: Without dead ends: 112 [2023-12-02 12:42:50,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:42:50,876 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 53 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-12-02 12:42:50,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 114 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 6 Unknown, 0 Unchecked, 13.3s Time] [2023-12-02 12:42:50,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-12-02 12:42:50,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 61. [2023-12-02 12:42:50,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 56 states have internal predecessors, (64), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 12:42:50,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions. [2023-12-02 12:42:50,931 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 70 transitions. Word has length 5 [2023-12-02 12:42:50,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:42:50,931 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 70 transitions. [2023-12-02 12:42:50,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-12-02 12:42:50,932 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 70 transitions. [2023-12-02 12:42:50,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-02 12:42:50,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:42:50,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:42:50,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 12:42:50,936 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:42:50,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:42:50,937 INFO L85 PathProgramCache]: Analyzing trace with hash 795660270, now seen corresponding path program 1 times [2023-12-02 12:42:50,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:42:50,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156299164] [2023-12-02 12:42:50,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:42:50,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:42:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:42:51,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 12:42:51,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:42:51,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156299164] [2023-12-02 12:42:51,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156299164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:42:51,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:42:51,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 12:42:51,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617137455] [2023-12-02 12:42:51,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:42:51,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:42:51,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:42:51,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:42:51,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:42:51,374 INFO L87 Difference]: Start difference. First operand 61 states and 70 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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) [2023-12-02 12:42:53,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:42:55,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:42:57,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:42:59,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:43:01,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:43:03,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:43:04,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:43:04,699 INFO L93 Difference]: Finished difference Result 134 states and 154 transitions. [2023-12-02 12:43:04,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:43:04,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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) Word has length 32 [2023-12-02 12:43:04,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:43:04,704 INFO L225 Difference]: With dead ends: 134 [2023-12-02 12:43:04,704 INFO L226 Difference]: Without dead ends: 75 [2023-12-02 12:43:04,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:43:04,706 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 11 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-12-02 12:43:04,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 92 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 6 Unknown, 0 Unchecked, 13.3s Time] [2023-12-02 12:43:04,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-12-02 12:43:04,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-12-02 12:43:04,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 70 states have (on average 1.1285714285714286) internal successors, (79), 70 states have internal predecessors, (79), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 12:43:04,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2023-12-02 12:43:04,714 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 32 [2023-12-02 12:43:04,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:43:04,714 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2023-12-02 12:43:04,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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) [2023-12-02 12:43:04,714 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2023-12-02 12:43:04,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 12:43:04,716 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:43:04,716 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:43:04,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 12:43:04,716 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:43:04,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:43:04,717 INFO L85 PathProgramCache]: Analyzing trace with hash 440600343, now seen corresponding path program 1 times [2023-12-02 12:43:04,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:43:04,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874664079] [2023-12-02 12:43:04,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:43:04,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:43:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:43:05,133 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 12:43:05,133 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:43:05,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874664079] [2023-12-02 12:43:05,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874664079] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:43:05,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631670350] [2023-12-02 12:43:05,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:43:05,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:43:05,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:43:05,137 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:43:05,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 12:43:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:43:05,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 12:43:05,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:43:05,646 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 12:43:05,647 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:43:05,770 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 12:43:05,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631670350] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:43:05,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [874333134] [2023-12-02 12:43:05,796 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2023-12-02 12:43:05,796 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:43:05,800 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:43:05,807 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:43:05,807 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:43:12,624 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 119 for LOIs [2023-12-02 12:43:12,667 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:43:23,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [874333134] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:43:23,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 12:43:23,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4, 4, 4] total 19 [2023-12-02 12:43:23,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323674347] [2023-12-02 12:43:23,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:43:23,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 12:43:23,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:43:23,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 12:43:23,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=229, Unknown=5, NotChecked=0, Total=342 [2023-12-02 12:43:23,169 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand has 14 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 12:43:25,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:43:27,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:43:29,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:43:31,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:43:33,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:43:35,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:43:37,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:43:39,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:43:41,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:43:43,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:43:46,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:43:48,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:43:51,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:43:53,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:43:57,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:43:59,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:44:01,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:44:03,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:44:05,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:44:07,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:44:09,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:44:11,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:44:13,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:44:15,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:44:17,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:44:19,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:44:21,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:44:23,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:44:25,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:44:27,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:44:29,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:44:31,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:44:33,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:44:36,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:44:38,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:44:40,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:44:42,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:44:44,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:44:46,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:44:48,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 12:44:51,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-02 12:44:53,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-02 12:44:54,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:44:54,672 INFO L93 Difference]: Finished difference Result 153 states and 177 transitions. [2023-12-02 12:44:54,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 12:44:54,677 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2023-12-02 12:44:54,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:44:54,678 INFO L225 Difference]: With dead ends: 153 [2023-12-02 12:44:54,679 INFO L226 Difference]: Without dead ends: 83 [2023-12-02 12:44:54,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=120, Invalid=255, Unknown=5, NotChecked=0, Total=380 [2023-12-02 12:44:54,681 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 9 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 2 mSolverCounterUnsat, 48 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 48 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 91.2s IncrementalHoareTripleChecker+Time [2023-12-02 12:44:54,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 222 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 248 Invalid, 48 Unknown, 0 Unchecked, 91.2s Time] [2023-12-02 12:44:54,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-12-02 12:44:54,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 77. [2023-12-02 12:44:54,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 71 states have (on average 1.1126760563380282) internal successors, (79), 71 states have internal predecessors, (79), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 12:44:54,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 87 transitions. [2023-12-02 12:44:54,703 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 87 transitions. Word has length 45 [2023-12-02 12:44:54,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:44:54,703 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 87 transitions. [2023-12-02 12:44:54,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 12:44:54,703 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 87 transitions. [2023-12-02 12:44:54,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 12:44:54,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:44:54,706 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:44:54,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 12:44:54,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:44:54,907 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:44:54,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:44:54,907 INFO L85 PathProgramCache]: Analyzing trace with hash 445263443, now seen corresponding path program 1 times [2023-12-02 12:44:54,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:44:54,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070022031] [2023-12-02 12:44:54,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:44:54,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:44:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:44:55,251 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 12:44:55,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:44:55,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070022031] [2023-12-02 12:44:55,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070022031] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:44:55,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456035773] [2023-12-02 12:44:55,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:44:55,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:44:55,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:44:55,253 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:44:55,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de739a54-2a37-47a0-8896-47730775f74f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 12:44:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:44:55,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 12:44:55,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:44:55,686 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 12:44:55,686 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:44:55,764 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 12:44:55,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456035773] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:44:55,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [506850922] [2023-12-02 12:44:55,769 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2023-12-02 12:44:55,769 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:44:55,770 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:44:55,770 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:44:55,771 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:45:22,214 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 302 for LOIs [2023-12-02 12:45:24,879 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:47:24,896 WARN L293 SmtUtils]: Spent 1.90m on a formula simplification. DAG size of input: 312 DAG size of output: 309 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:49:01,421 WARN L293 SmtUtils]: Spent 1.45m on a formula simplification. DAG size of input: 326 DAG size of output: 323 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:51:28,430 WARN L293 SmtUtils]: Spent 2.33m on a formula simplification. DAG size of input: 346 DAG size of output: 340 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:52:40,080 WARN L293 SmtUtils]: Spent 13.66s on a formula simplification. DAG size of input: 302 DAG size of output: 288 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:53:11,027 WARN L854 $PredicateComparison]: unable to prove that (and (<= |c_ULTIMATE.start_main_~i~0#1| 9) (= |c_ULTIMATE.start_main_~user~0#1.offset| 0) (= |c_ULTIMATE.start_main_~users~0#1.offset| 0) (= |c_ULTIMATE.start_main_~users~0#1.base| 0) (let ((.cse0 (= |c_ULTIMATE.start_main_#t~mem65#1.offset| |c_ULTIMATE.start_main_#t~memset~res66#1.offset|)) (.cse22 (= |c_ULTIMATE.start_main_#t~memset~res66#1.base| |c_ULTIMATE.start_main_#t~mem65#1.base|))) (or (and .cse0 (exists ((|v_#memory_$Pointer$.offset_302| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_86| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_85| (Array Int (Array Int Int))) (|v_#memory_int_96| (Array Int (Array Int Int))) (|v_#memory_int_349| (Array Int (Array Int Int))) (|v_#valid_56| (Array Int Int)) (|v_#memory_int_97| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_87| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~malloc59#1.base_5| Int) (|v_#length_38| (Array Int Int)) (|v_#memory_$Pointer$.offset_86| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_85| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_BEFORE_CALL_31| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_87| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_302| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| (Array Int (Array Int Int)))) (let ((.cse17 (select (select |v_#memory_$Pointer$.base_87| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse18 (select (select |v_#memory_$Pointer$.offset_85| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse13 (select (select |v_#memory_$Pointer$.base_302| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse14 (+ 16 (select (select |v_#memory_$Pointer$.offset_302| |c_ULTIMATE.start_main_~user~0#1.base|) 8)))) (let ((.cse21 (store |v_#memory_$Pointer$.offset_302| .cse13 (store (select |v_#memory_$Pointer$.offset_302| .cse13) .cse14 8))) (.cse5 (store |v_#memory_$Pointer$.base_302| .cse13 (store (select |v_#memory_$Pointer$.base_302| .cse13) .cse14 |c_ULTIMATE.start_main_~user~0#1.base|))) (.cse8 (store |v_#memory_$Pointer$.offset_85| .cse17 (store (select |v_#memory_$Pointer$.offset_85| .cse17) .cse18 0))) (.cse15 (store |v_#memory_$Pointer$.base_87| .cse17 (store (select |v_#memory_$Pointer$.base_87| .cse17) .cse18 |v_ULTIMATE.start_main_#t~malloc59#1.base_5|)))) (let ((.cse1 (select (select |v_#memory_$Pointer$.base_BEFORE_CALL_31| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse2 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse9 (select (select .cse15 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse10 (+ 40 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse3 (select (select |v_#memory_$Pointer$.base_86| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse4 (+ (select (select |v_#memory_$Pointer$.offset_87| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 20)) (.cse11 (select (select |v_#memory_$Pointer$.base_85| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse12 (+ (select (select |v_#memory_$Pointer$.offset_86| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 8)) (.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse7 (+ (select (select .cse21 |c_ULTIMATE.start_main_~user~0#1.base|) 8) 4))) (and (not (= |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 0)) (= |c_ULTIMATE.start_main_#t~mem64#1.base| .cse1) (or (not (= (select (select |v_#memory_$Pointer$.base_BEFORE_CALL_31| .cse1) .cse2) 0)) (not (= (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| .cse1) .cse2) 0))) (= |c_ULTIMATE.start_main_#t~mem65#1.offset| (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| |c_ULTIMATE.start_main_#t~mem64#1.base|) |c_ULTIMATE.start_main_#t~mem64#1.offset|)) (= (store |v_#memory_$Pointer$.offset_87| .cse3 (store (select |v_#memory_$Pointer$.offset_87| .cse3) .cse4 (select (select |v_#memory_$Pointer$.offset_85| .cse3) .cse4))) |v_#memory_$Pointer$.offset_85|) (= |c_#valid| (store |v_#valid_56| |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 1)) (= (store .cse5 .cse6 (store (select .cse5 .cse6) .cse7 (select (select |v_#memory_$Pointer$.base_85| .cse6) .cse7))) |v_#memory_$Pointer$.base_85|) (= |v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| (store .cse8 .cse9 (store (select .cse8 .cse9) .cse10 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| .cse9) .cse10)))) (= (store |v_#memory_$Pointer$.base_86| .cse3 (store (select |v_#memory_$Pointer$.base_86| .cse3) .cse4 (select (select |v_#memory_$Pointer$.base_87| .cse3) .cse4))) |v_#memory_$Pointer$.base_87|) (= .cse2 |c_ULTIMATE.start_main_#t~mem64#1.offset|) (= (store |v_#memory_$Pointer$.base_85| .cse11 (store (select |v_#memory_$Pointer$.base_85| .cse11) .cse12 (select (select |v_#memory_$Pointer$.base_86| .cse11) .cse12))) |v_#memory_$Pointer$.base_86|) (= (select (select |v_#memory_$Pointer$.base_BEFORE_CALL_31| |c_ULTIMATE.start_main_#t~mem64#1.base|) |c_ULTIMATE.start_main_#t~mem64#1.offset|) |c_ULTIMATE.start_main_#t~mem65#1.base|) (= (store |v_#memory_int_349| .cse13 (store (select |v_#memory_int_349| .cse13) .cse14 (select (select |v_#memory_int_97| .cse13) .cse14))) |v_#memory_int_97|) (= |v_#memory_$Pointer$.base_BEFORE_CALL_31| (store .cse15 .cse9 (store (select .cse15 .cse9) .cse10 (select (select |v_#memory_$Pointer$.base_BEFORE_CALL_31| .cse9) .cse10)))) (= (store |v_#length_38| |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 384) |c_#length|) (= (select |v_#valid_56| |v_ULTIMATE.start_main_#t~malloc59#1.base_5|) 0) (= (let ((.cse16 (let ((.cse19 (let ((.cse20 (store |v_#memory_int_97| .cse6 (store (select |v_#memory_int_97| .cse6) .cse7 32)))) (store .cse20 .cse11 (store (select .cse20 .cse11) .cse12 5))))) (store .cse19 .cse3 (store (select .cse19 .cse3) .cse4 8))))) (store .cse16 .cse17 (store (select .cse16 .cse17) .cse18 (select (select |v_#memory_int_96| .cse17) .cse18)))) |v_#memory_int_96|) (<= (+ |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 1) |c_#StackHeapBarrier|) (= |v_#memory_$Pointer$.offset_87| (store |v_#memory_$Pointer$.offset_86| .cse11 (store (select |v_#memory_$Pointer$.offset_86| .cse11) .cse12 (select (select |v_#memory_$Pointer$.offset_87| .cse11) .cse12)))) (= |v_#memory_$Pointer$.offset_86| (store .cse21 .cse6 (store (select .cse21 .cse6) .cse7 (select (select |v_#memory_$Pointer$.offset_86| .cse6) .cse7))))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr164_BEFORE_RETURN_15| Int)) (and (<= 384 (mod |v_#Ultimate.C_memset_#t~loopctr164_BEFORE_RETURN_15| 4294967296)) (<= 0 |v_#Ultimate.C_memset_#t~loopctr164_BEFORE_RETURN_15|))) .cse22) (and .cse0 (exists ((|v_#Ultimate.C_memset_#t~loopctr164_BEFORE_RETURN_16| Int)) (and (<= 0 |v_#Ultimate.C_memset_#t~loopctr164_BEFORE_RETURN_16|) (<= 384 (mod |v_#Ultimate.C_memset_#t~loopctr164_BEFORE_RETURN_16| 4294967296)))) (exists ((|v_#memory_$Pointer$.offset_302| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_86| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_85| (Array Int (Array Int Int))) (|v_#memory_int_96| (Array Int (Array Int Int))) (|v_#memory_int_349| (Array Int (Array Int Int))) (|v_#valid_56| (Array Int Int)) (|v_#memory_int_97| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_87| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~malloc59#1.base_5| Int) (|v_#length_38| (Array Int Int)) (|v_#memory_$Pointer$.offset_86| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_85| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_87| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_20| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_302| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_BEFORE_CALL_33| (Array Int (Array Int Int)))) (let ((.cse39 (select (select |v_#memory_$Pointer$.base_87| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse40 (select (select |v_#memory_$Pointer$.offset_85| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse35 (select (select |v_#memory_$Pointer$.base_302| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse36 (+ 16 (select (select |v_#memory_$Pointer$.offset_302| |c_ULTIMATE.start_main_~user~0#1.base|) 8)))) (let ((.cse43 (store |v_#memory_$Pointer$.offset_302| .cse35 (store (select |v_#memory_$Pointer$.offset_302| .cse35) .cse36 8))) (.cse30 (store |v_#memory_$Pointer$.base_302| .cse35 (store (select |v_#memory_$Pointer$.base_302| .cse35) .cse36 |c_ULTIMATE.start_main_~user~0#1.base|))) (.cse25 (store |v_#memory_$Pointer$.offset_85| .cse39 (store (select |v_#memory_$Pointer$.offset_85| .cse39) .cse40 0))) (.cse37 (store |v_#memory_$Pointer$.base_87| .cse39 (store (select |v_#memory_$Pointer$.base_87| .cse39) .cse40 |v_ULTIMATE.start_main_#t~malloc59#1.base_5|)))) (let ((.cse24 (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_33| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse26 (select (select .cse37 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse27 (+ 40 (select (select .cse25 |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse28 (select (select |v_#memory_$Pointer$.base_86| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse29 (+ (select (select |v_#memory_$Pointer$.offset_87| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 20)) (.cse33 (select (select |v_#memory_$Pointer$.base_85| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse34 (+ (select (select |v_#memory_$Pointer$.offset_86| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 8)) (.cse23 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_20| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse31 (select (select .cse30 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse32 (+ (select (select .cse43 |c_ULTIMATE.start_main_~user~0#1.base|) 8) 4))) (and (not (= |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 0)) (or (not (= (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_33| .cse23) .cse24) 0)) (not (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_20| .cse23) .cse24) 0))) (= |c_ULTIMATE.start_main_#t~mem65#1.offset| (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_33| |c_ULTIMATE.start_main_#t~mem64#1.base|) |c_ULTIMATE.start_main_#t~mem64#1.offset|)) (= (store .cse25 .cse26 (store (select .cse25 .cse26) .cse27 (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_33| .cse26) .cse27))) |v_#memory_$Pointer$.offset_BEFORE_CALL_33|) (= .cse24 |c_ULTIMATE.start_main_#t~mem64#1.offset|) (= (store |v_#memory_$Pointer$.offset_87| .cse28 (store (select |v_#memory_$Pointer$.offset_87| .cse28) .cse29 (select (select |v_#memory_$Pointer$.offset_85| .cse28) .cse29))) |v_#memory_$Pointer$.offset_85|) (= |c_#valid| (store |v_#valid_56| |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 1)) (= (store .cse30 .cse31 (store (select .cse30 .cse31) .cse32 (select (select |v_#memory_$Pointer$.base_85| .cse31) .cse32))) |v_#memory_$Pointer$.base_85|) (= (store |v_#memory_$Pointer$.base_86| .cse28 (store (select |v_#memory_$Pointer$.base_86| .cse28) .cse29 (select (select |v_#memory_$Pointer$.base_87| .cse28) .cse29))) |v_#memory_$Pointer$.base_87|) (= (store |v_#memory_$Pointer$.base_85| .cse33 (store (select |v_#memory_$Pointer$.base_85| .cse33) .cse34 (select (select |v_#memory_$Pointer$.base_86| .cse33) .cse34))) |v_#memory_$Pointer$.base_86|) (= (store |v_#memory_int_349| .cse35 (store (select |v_#memory_int_349| .cse35) .cse36 (select (select |v_#memory_int_97| .cse35) .cse36))) |v_#memory_int_97|) (= (store |v_#length_38| |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 384) |c_#length|) (= (select |v_#valid_56| |v_ULTIMATE.start_main_#t~malloc59#1.base_5|) 0) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_20| (store .cse37 .cse26 (store (select .cse37 .cse26) .cse27 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_20| .cse26) .cse27)))) (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_20| |c_ULTIMATE.start_main_#t~mem64#1.base|) |c_ULTIMATE.start_main_#t~mem64#1.offset|) |c_ULTIMATE.start_main_#t~mem65#1.base|) (= (let ((.cse38 (let ((.cse41 (let ((.cse42 (store |v_#memory_int_97| .cse31 (store (select |v_#memory_int_97| .cse31) .cse32 32)))) (store .cse42 .cse33 (store (select .cse42 .cse33) .cse34 5))))) (store .cse41 .cse28 (store (select .cse41 .cse28) .cse29 8))))) (store .cse38 .cse39 (store (select .cse38 .cse39) .cse40 (select (select |v_#memory_int_96| .cse39) .cse40)))) |v_#memory_int_96|) (<= (+ |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 1) |c_#StackHeapBarrier|) (= |v_#memory_$Pointer$.offset_87| (store |v_#memory_$Pointer$.offset_86| .cse33 (store (select |v_#memory_$Pointer$.offset_86| .cse33) .cse34 (select (select |v_#memory_$Pointer$.offset_87| .cse33) .cse34)))) (= |c_ULTIMATE.start_main_#t~mem64#1.base| .cse23) (= |v_#memory_$Pointer$.offset_86| (store .cse43 .cse31 (store (select .cse43 .cse31) .cse32 (select (select |v_#memory_$Pointer$.offset_86| .cse31) .cse32))))))))) .cse22)))) is different from false [2023-12-02 12:54:14,440 WARN L293 SmtUtils]: Spent 16.77s on a formula simplification that was a NOOP. DAG size: 218 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:54:16,455 WARN L854 $PredicateComparison]: unable to prove that (and (or (and (exists ((|v_#Ultimate.C_memset_#t~loopctr164_BEFORE_RETURN_15| Int)) (and (<= 384 (mod |v_#Ultimate.C_memset_#t~loopctr164_BEFORE_RETURN_15| 4294967296)) (<= 0 |v_#Ultimate.C_memset_#t~loopctr164_BEFORE_RETURN_15|))) (exists ((|v_#memory_$Pointer$.offset_302| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_86| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_85| (Array Int (Array Int Int))) (|v_#memory_int_96| (Array Int (Array Int Int))) (|v_#memory_int_349| (Array Int (Array Int Int))) (|v_#valid_56| (Array Int Int)) (|v_#memory_int_97| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_87| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~malloc59#1.base_5| Int) (|v_#length_38| (Array Int Int)) (|v_#memory_$Pointer$.offset_86| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_85| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_BEFORE_CALL_31| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_87| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_302| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| (Array Int (Array Int Int)))) (let ((.cse16 (select (select |v_#memory_$Pointer$.base_87| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse17 (select (select |v_#memory_$Pointer$.offset_85| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse12 (select (select |v_#memory_$Pointer$.base_302| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse13 (+ 16 (select (select |v_#memory_$Pointer$.offset_302| |c_ULTIMATE.start_main_~user~0#1.base|) 8)))) (let ((.cse20 (store |v_#memory_$Pointer$.offset_302| .cse12 (store (select |v_#memory_$Pointer$.offset_302| .cse12) .cse13 8))) (.cse4 (store |v_#memory_$Pointer$.base_302| .cse12 (store (select |v_#memory_$Pointer$.base_302| .cse12) .cse13 |c_ULTIMATE.start_main_~user~0#1.base|))) (.cse7 (store |v_#memory_$Pointer$.offset_85| .cse16 (store (select |v_#memory_$Pointer$.offset_85| .cse16) .cse17 0))) (.cse14 (store |v_#memory_$Pointer$.base_87| .cse16 (store (select |v_#memory_$Pointer$.base_87| .cse16) .cse17 |v_ULTIMATE.start_main_#t~malloc59#1.base_5|)))) (let ((.cse8 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse9 (+ 40 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse2 (select (select |v_#memory_$Pointer$.base_86| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse3 (+ (select (select |v_#memory_$Pointer$.offset_87| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 20)) (.cse10 (select (select |v_#memory_$Pointer$.base_85| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse11 (+ (select (select |v_#memory_$Pointer$.offset_86| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 8)) (.cse5 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse6 (+ (select (select .cse20 |c_ULTIMATE.start_main_~user~0#1.base|) 8) 4))) (and (not (= |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 0)) (let ((.cse0 (select (select |v_#memory_$Pointer$.base_BEFORE_CALL_31| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse1 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (or (not (= (select (select |v_#memory_$Pointer$.base_BEFORE_CALL_31| .cse0) .cse1) 0)) (not (= (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| .cse0) .cse1) 0)))) (= (store |v_#memory_$Pointer$.offset_87| .cse2 (store (select |v_#memory_$Pointer$.offset_87| .cse2) .cse3 (select (select |v_#memory_$Pointer$.offset_85| .cse2) .cse3))) |v_#memory_$Pointer$.offset_85|) (= |c_#valid| (store |v_#valid_56| |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 1)) (= (store .cse4 .cse5 (store (select .cse4 .cse5) .cse6 (select (select |v_#memory_$Pointer$.base_85| .cse5) .cse6))) |v_#memory_$Pointer$.base_85|) (= |v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| (store .cse7 .cse8 (store (select .cse7 .cse8) .cse9 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| .cse8) .cse9)))) (= (store |v_#memory_$Pointer$.base_86| .cse2 (store (select |v_#memory_$Pointer$.base_86| .cse2) .cse3 (select (select |v_#memory_$Pointer$.base_87| .cse2) .cse3))) |v_#memory_$Pointer$.base_87|) (= (store |v_#memory_$Pointer$.base_85| .cse10 (store (select |v_#memory_$Pointer$.base_85| .cse10) .cse11 (select (select |v_#memory_$Pointer$.base_86| .cse10) .cse11))) |v_#memory_$Pointer$.base_86|) (= (store |v_#memory_int_349| .cse12 (store (select |v_#memory_int_349| .cse12) .cse13 (select (select |v_#memory_int_97| .cse12) .cse13))) |v_#memory_int_97|) (= |v_#memory_$Pointer$.base_BEFORE_CALL_31| (store .cse14 .cse8 (store (select .cse14 .cse8) .cse9 (select (select |v_#memory_$Pointer$.base_BEFORE_CALL_31| .cse8) .cse9)))) (= (store |v_#length_38| |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 384) |c_#length|) (= (select |v_#valid_56| |v_ULTIMATE.start_main_#t~malloc59#1.base_5|) 0) (= (let ((.cse15 (let ((.cse18 (let ((.cse19 (store |v_#memory_int_97| .cse5 (store (select |v_#memory_int_97| .cse5) .cse6 32)))) (store .cse19 .cse10 (store (select .cse19 .cse10) .cse11 5))))) (store .cse18 .cse2 (store (select .cse18 .cse2) .cse3 8))))) (store .cse15 .cse16 (store (select .cse15 .cse16) .cse17 (select (select |v_#memory_int_96| .cse16) .cse17)))) |v_#memory_int_96|) (<= (+ |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 1) |c_#StackHeapBarrier|) (= |v_#memory_$Pointer$.offset_87| (store |v_#memory_$Pointer$.offset_86| .cse10 (store (select |v_#memory_$Pointer$.offset_86| .cse10) .cse11 (select (select |v_#memory_$Pointer$.offset_87| .cse10) .cse11)))) (= |v_#memory_$Pointer$.offset_86| (store .cse20 .cse5 (store (select .cse20 .cse5) .cse6 (select (select |v_#memory_$Pointer$.offset_86| .cse5) .cse6)))))))))) (and (exists ((|v_#Ultimate.C_memset_#t~loopctr164_BEFORE_RETURN_16| Int)) (and (<= 0 |v_#Ultimate.C_memset_#t~loopctr164_BEFORE_RETURN_16|) (<= 384 (mod |v_#Ultimate.C_memset_#t~loopctr164_BEFORE_RETURN_16| 4294967296)))) (exists ((|v_#memory_$Pointer$.offset_302| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_86| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_85| (Array Int (Array Int Int))) (|v_#memory_int_96| (Array Int (Array Int Int))) (|v_#memory_int_349| (Array Int (Array Int Int))) (|v_#valid_56| (Array Int Int)) (|v_#memory_int_97| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_87| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~malloc59#1.base_5| Int) (|v_#length_38| (Array Int Int)) (|v_#memory_$Pointer$.offset_86| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_85| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_87| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_20| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_302| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_BEFORE_CALL_33| (Array Int (Array Int Int)))) (let ((.cse37 (select (select |v_#memory_$Pointer$.base_87| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse38 (select (select |v_#memory_$Pointer$.offset_85| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse33 (select (select |v_#memory_$Pointer$.base_302| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse34 (+ 16 (select (select |v_#memory_$Pointer$.offset_302| |c_ULTIMATE.start_main_~user~0#1.base|) 8)))) (let ((.cse41 (store |v_#memory_$Pointer$.offset_302| .cse33 (store (select |v_#memory_$Pointer$.offset_302| .cse33) .cse34 8))) (.cse28 (store |v_#memory_$Pointer$.base_302| .cse33 (store (select |v_#memory_$Pointer$.base_302| .cse33) .cse34 |c_ULTIMATE.start_main_~user~0#1.base|))) (.cse23 (store |v_#memory_$Pointer$.offset_85| .cse37 (store (select |v_#memory_$Pointer$.offset_85| .cse37) .cse38 0))) (.cse35 (store |v_#memory_$Pointer$.base_87| .cse37 (store (select |v_#memory_$Pointer$.base_87| .cse37) .cse38 |v_ULTIMATE.start_main_#t~malloc59#1.base_5|)))) (let ((.cse24 (select (select .cse35 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse25 (+ 40 (select (select .cse23 |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse26 (select (select |v_#memory_$Pointer$.base_86| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse27 (+ (select (select |v_#memory_$Pointer$.offset_87| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 20)) (.cse31 (select (select |v_#memory_$Pointer$.base_85| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse32 (+ (select (select |v_#memory_$Pointer$.offset_86| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 8)) (.cse29 (select (select .cse28 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse30 (+ (select (select .cse41 |c_ULTIMATE.start_main_~user~0#1.base|) 8) 4))) (and (not (= |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 0)) (let ((.cse21 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_20| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse22 (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_33| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (or (not (= (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_33| .cse21) .cse22) 0)) (not (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_20| .cse21) .cse22) 0)))) (= (store .cse23 .cse24 (store (select .cse23 .cse24) .cse25 (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_33| .cse24) .cse25))) |v_#memory_$Pointer$.offset_BEFORE_CALL_33|) (= (store |v_#memory_$Pointer$.offset_87| .cse26 (store (select |v_#memory_$Pointer$.offset_87| .cse26) .cse27 (select (select |v_#memory_$Pointer$.offset_85| .cse26) .cse27))) |v_#memory_$Pointer$.offset_85|) (= |c_#valid| (store |v_#valid_56| |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 1)) (= (store .cse28 .cse29 (store (select .cse28 .cse29) .cse30 (select (select |v_#memory_$Pointer$.base_85| .cse29) .cse30))) |v_#memory_$Pointer$.base_85|) (= (store |v_#memory_$Pointer$.base_86| .cse26 (store (select |v_#memory_$Pointer$.base_86| .cse26) .cse27 (select (select |v_#memory_$Pointer$.base_87| .cse26) .cse27))) |v_#memory_$Pointer$.base_87|) (= (store |v_#memory_$Pointer$.base_85| .cse31 (store (select |v_#memory_$Pointer$.base_85| .cse31) .cse32 (select (select |v_#memory_$Pointer$.base_86| .cse31) .cse32))) |v_#memory_$Pointer$.base_86|) (= (store |v_#memory_int_349| .cse33 (store (select |v_#memory_int_349| .cse33) .cse34 (select (select |v_#memory_int_97| .cse33) .cse34))) |v_#memory_int_97|) (= (store |v_#length_38| |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 384) |c_#length|) (= (select |v_#valid_56| |v_ULTIMATE.start_main_#t~malloc59#1.base_5|) 0) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_20| (store .cse35 .cse24 (store (select .cse35 .cse24) .cse25 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_20| .cse24) .cse25)))) (= (let ((.cse36 (let ((.cse39 (let ((.cse40 (store |v_#memory_int_97| .cse29 (store (select |v_#memory_int_97| .cse29) .cse30 32)))) (store .cse40 .cse31 (store (select .cse40 .cse31) .cse32 5))))) (store .cse39 .cse26 (store (select .cse39 .cse26) .cse27 8))))) (store .cse36 .cse37 (store (select .cse36 .cse37) .cse38 (select (select |v_#memory_int_96| .cse37) .cse38)))) |v_#memory_int_96|) (<= (+ |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 1) |c_#StackHeapBarrier|) (= |v_#memory_$Pointer$.offset_87| (store |v_#memory_$Pointer$.offset_86| .cse31 (store (select |v_#memory_$Pointer$.offset_86| .cse31) .cse32 (select (select |v_#memory_$Pointer$.offset_87| .cse31) .cse32)))) (= |v_#memory_$Pointer$.offset_86| (store .cse41 .cse29 (store (select .cse41 .cse29) .cse30 (select (select |v_#memory_$Pointer$.offset_86| .cse29) .cse30))))))))))) (<= |c_ULTIMATE.start_main_~i~0#1| 9) (= |c_ULTIMATE.start_main_~user~0#1.offset| 0) (= |c_ULTIMATE.start_main_~users~0#1.offset| 0) (= |c_ULTIMATE.start_main_~users~0#1.base| |c_ULTIMATE.start_main_~user~0#1.base|)) is different from false [2023-12-02 12:55:42,700 WARN L293 SmtUtils]: Spent 37.31s on a formula simplification that was a NOOP. DAG size: 250 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:56:54,786 WARN L293 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 188 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:57:17,473 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1579#(and (= |ULTIMATE.start_main_~user~0#1.base| 0) (= |ULTIMATE.start_main_~users~0#1.offset| 0) (<= 10 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~users~0#1.base| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start_main_~user~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 0))' at error location [2023-12-02 12:57:17,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 12:57:17,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 12:57:17,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-12-02 12:57:17,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314071972] [2023-12-02 12:57:17,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 12:57:17,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 12:57:17,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:57:17,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 12:57:17,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=807, Unknown=87, NotChecked=122, Total=1122 [2023-12-02 12:57:17,476 INFO L87 Difference]: Start difference. First operand 77 states and 87 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-12-02 12:57:19,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:57:21,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:57:23,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:57:25,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:57:27,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:57:29,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:57:31,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:57:33,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:57:35,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []