./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/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_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/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_a5578437-4784-42fb-a60f-48ac0497a17b/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 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:32:45,841 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:32:45,908 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 15:32:45,912 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:32:45,913 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:32:45,936 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:32:45,937 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:32:45,937 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:32:45,938 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:32:45,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:32:45,939 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:32:45,940 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:32:45,940 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:32:45,941 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:32:45,941 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:32:45,942 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:32:45,942 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:32:45,943 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:32:45,943 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:32:45,944 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:32:45,944 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:32:45,945 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:32:45,946 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:32:45,946 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:32:45,947 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:32:45,947 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:32:45,947 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:32:45,948 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:32:45,948 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:32:45,948 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:32:45,949 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:32:45,949 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:32:45,949 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:32:45,950 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:32:45,950 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:32:45,950 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:32:45,950 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:32:45,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:32:45,951 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:32:45,951 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:32:45,951 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:32:45,952 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:32:45,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:32:45,952 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:32:45,952 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:32:45,952 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:32:45,953 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:32:45,953 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_a5578437-4784-42fb-a60f-48ac0497a17b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 [2023-12-02 15:32:46,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:32:46,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:32:46,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:32:46,208 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:32:46,208 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:32:46,210 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i [2023-12-02 15:32:48,928 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:32:49,176 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:32:49,177 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i [2023-12-02 15:32:49,194 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/data/566d1668c/b17c22670f9642e598fe477a7f1afbe8/FLAG8dd18d7d3 [2023-12-02 15:32:49,208 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/data/566d1668c/b17c22670f9642e598fe477a7f1afbe8 [2023-12-02 15:32:49,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:32:49,212 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:32:49,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:32:49,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:32:49,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:32:49,219 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:32:49" (1/1) ... [2023-12-02 15:32:49,220 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@577667e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:49, skipping insertion in model container [2023-12-02 15:32:49,220 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:32:49" (1/1) ... [2023-12-02 15:32:49,283 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:32:49,598 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_a5578437-4784-42fb-a60f-48ac0497a17b/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i[33519,33532] [2023-12-02 15:32:49,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:32:49,686 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:32:49,718 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_a5578437-4784-42fb-a60f-48ac0497a17b/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i[33519,33532] [2023-12-02 15:32:49,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:32:49,806 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:32:49,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:49 WrapperNode [2023-12-02 15:32:49,807 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:32:49,808 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:32:49,808 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:32:49,808 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:32:49,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:49" (1/1) ... [2023-12-02 15:32:49,843 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:49" (1/1) ... [2023-12-02 15:32:49,906 INFO L138 Inliner]: procedures = 177, calls = 227, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 916 [2023-12-02 15:32:49,907 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:32:49,908 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:32:49,908 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:32:49,908 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:32:49,918 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:49" (1/1) ... [2023-12-02 15:32:49,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:49" (1/1) ... [2023-12-02 15:32:49,930 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:49" (1/1) ... [2023-12-02 15:32:49,930 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:49" (1/1) ... [2023-12-02 15:32:49,972 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:49" (1/1) ... [2023-12-02 15:32:49,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:49" (1/1) ... [2023-12-02 15:32:49,988 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:49" (1/1) ... [2023-12-02 15:32:49,993 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:49" (1/1) ... [2023-12-02 15:32:50,002 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:32:50,004 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:32:50,004 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:32:50,004 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:32:50,005 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:49" (1/1) ... [2023-12-02 15:32:50,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:32:50,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:32:50,030 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:32:50,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:32:50,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 15:32:50,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 15:32:50,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 15:32:50,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 15:32:50,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 15:32:50,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:32:50,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:32:50,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 15:32:50,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 15:32:50,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:32:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:32:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:32:50,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:32:50,242 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:32:50,244 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:32:51,161 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:32:52,048 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:32:52,049 INFO L309 CfgBuilder]: Removed 40 assume(true) statements. [2023-12-02 15:32:52,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:32:52 BoogieIcfgContainer [2023-12-02 15:32:52,050 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:32:52,053 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:32:52,053 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:32:52,056 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:32:52,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:32:49" (1/3) ... [2023-12-02 15:32:52,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c252460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:32:52, skipping insertion in model container [2023-12-02 15:32:52,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:49" (2/3) ... [2023-12-02 15:32:52,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c252460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:32:52, skipping insertion in model container [2023-12-02 15:32:52,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:32:52" (3/3) ... [2023-12-02 15:32:52,059 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test1-2.i [2023-12-02 15:32:52,078 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:32:52,078 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:32:52,128 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:32:52,134 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;@1f920100, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:32:52,135 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:32:52,139 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 71 states have (on average 1.7183098591549295) internal successors, (122), 72 states have internal predecessors, (122), 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 15:32:52,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 15:32:52,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:32:52,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 15:32:52,146 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:32:52,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:32:52,152 INFO L85 PathProgramCache]: Analyzing trace with hash 900698123, now seen corresponding path program 1 times [2023-12-02 15:32:52,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:32:52,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195409446] [2023-12-02 15:32:52,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:32:52,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:32:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:32:52,326 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 15:32:52,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:32:52,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195409446] [2023-12-02 15:32:52,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195409446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:32:52,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:32:52,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:32:52,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616690801] [2023-12-02 15:32:52,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:32:52,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:32:52,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:32:52,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:32:52,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:32:52,364 INFO L87 Difference]: Start difference. First operand has 77 states, 71 states have (on average 1.7183098591549295) internal successors, (122), 72 states have internal predecessors, (122), 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 15:32:54,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:32:56,424 WARN L539 Checker$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 15:32:58,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:33:00,533 WARN L539 Checker$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 15:33:02,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:33:04,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:33:05,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:33:05,716 INFO L93 Difference]: Finished difference Result 205 states and 346 transitions. [2023-12-02 15:33:05,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:33:05,722 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 15:33:05,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:33:05,728 INFO L225 Difference]: With dead ends: 205 [2023-12-02 15:33:05,728 INFO L226 Difference]: Without dead ends: 112 [2023-12-02 15:33:05,730 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 15:33:05,733 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 53 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-12-02 15:33:05,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 136 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 6 Unknown, 0 Unchecked, 13.3s Time] [2023-12-02 15:33:05,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-12-02 15:33:05,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 61. [2023-12-02 15:33:05,774 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 15:33:05,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions. [2023-12-02 15:33:05,777 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 70 transitions. Word has length 5 [2023-12-02 15:33:05,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:33:05,777 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 70 transitions. [2023-12-02 15:33:05,777 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 15:33:05,778 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 70 transitions. [2023-12-02 15:33:05,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-02 15:33:05,780 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:33:05,780 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 15:33:05,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:33:05,781 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:33:05,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:33:05,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1690037959, now seen corresponding path program 1 times [2023-12-02 15:33:05,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:33:05,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027800427] [2023-12-02 15:33:05,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:33:05,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:33:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:33:06,113 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 15:33:06,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:33:06,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027800427] [2023-12-02 15:33:06,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027800427] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:33:06,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:33:06,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:33:06,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940324839] [2023-12-02 15:33:06,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:33:06,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:33:06,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:33:06,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:33:06,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:33:06,117 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 15:33:08,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:33:10,400 WARN L539 Checker$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 15:33:12,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:33:14,431 WARN L539 Checker$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 15:33:15,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 15:33:16,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:33:16,486 INFO L93 Difference]: Finished difference Result 134 states and 154 transitions. [2023-12-02 15:33:16,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:33:16,493 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 15:33:16,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:33:16,494 INFO L225 Difference]: With dead ends: 134 [2023-12-02 15:33:16,494 INFO L226 Difference]: Without dead ends: 75 [2023-12-02 15:33:16,495 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 15:33:16,497 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 11 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-12-02 15:33:16,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 92 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 4 Unknown, 0 Unchecked, 10.4s Time] [2023-12-02 15:33:16,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-12-02 15:33:16,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-12-02 15:33:16,507 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 15:33:16,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2023-12-02 15:33:16,508 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 32 [2023-12-02 15:33:16,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:33:16,509 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2023-12-02 15:33:16,509 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 15:33:16,509 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2023-12-02 15:33:16,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 15:33:16,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:33:16,511 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 15:33:16,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 15:33:16,512 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:33:16,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:33:16,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1382947218, now seen corresponding path program 1 times [2023-12-02 15:33:16,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:33:16,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119762385] [2023-12-02 15:33:16,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:33:16,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:33:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:33:16,832 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 15:33:16,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:33:16,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119762385] [2023-12-02 15:33:16,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119762385] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:33:16,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484641345] [2023-12-02 15:33:16,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:33:16,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:33:16,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:33:16,837 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:33:16,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 15:33:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:33:17,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:33:17,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:33:17,271 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 15:33:17,272 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:33:17,349 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 15:33:17,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484641345] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:33:17,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1836164083] [2023-12-02 15:33:17,368 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2023-12-02 15:33:17,368 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:33:17,371 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:33:17,374 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:33:17,375 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:33:23,405 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 119 for LOIs [2023-12-02 15:33:23,433 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:33:31,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1836164083] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:33:31,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:33:31,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4, 4, 4] total 18 [2023-12-02 15:33:31,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502973444] [2023-12-02 15:33:31,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:33:31,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 15:33:31,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:33:31,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 15:33:31,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=208, Unknown=6, NotChecked=0, Total=306 [2023-12-02 15:33:31,105 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 15:33:33,308 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 15:33:35,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:33:37,329 WARN L539 Checker$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 15:33:39,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:33:41,387 WARN L539 Checker$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 15:33:43,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:33:45,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:33:47,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:33:49,439 WARN L539 Checker$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 15:33:51,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:33:53,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:33:55,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:33:58,325 WARN L539 Checker$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 15:34:00,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:34:05,016 WARN L539 Checker$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 15:34:07,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:34:09,036 WARN L539 Checker$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 15:34:11,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:34:13,068 WARN L539 Checker$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 15:34:15,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:34:17,090 WARN L539 Checker$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 15:34:19,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:34:21,103 WARN L539 Checker$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 15:34:23,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:34:25,122 WARN L539 Checker$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 15:34:27,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:34:29,141 WARN L539 Checker$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 15:34:31,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:34:33,168 WARN L539 Checker$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 15:34:35,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:34:37,183 WARN L539 Checker$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 15:34:39,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:34:41,217 WARN L539 Checker$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 15:34:43,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:34:45,237 WARN L539 Checker$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 15:34:47,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:34:49,265 WARN L539 Checker$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 15:34:51,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:34:53,291 WARN L539 Checker$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 15:34:55,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:34:57,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 15:34:57,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:34:57,974 INFO L93 Difference]: Finished difference Result 153 states and 177 transitions. [2023-12-02 15:34:57,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 15:34:57,979 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 15:34:57,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:34:57,980 INFO L225 Difference]: With dead ends: 153 [2023-12-02 15:34:57,980 INFO L226 Difference]: Without dead ends: 83 [2023-12-02 15:34:57,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=103, Invalid=233, Unknown=6, NotChecked=0, Total=342 [2023-12-02 15:34:57,981 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 9 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 2 mSolverCounterUnsat, 45 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 45 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.6s IncrementalHoareTripleChecker+Time [2023-12-02 15:34:57,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 209 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 234 Invalid, 45 Unknown, 0 Unchecked, 86.6s Time] [2023-12-02 15:34:57,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-12-02 15:34:57,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 77. [2023-12-02 15:34:57,995 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 15:34:57,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 87 transitions. [2023-12-02 15:34:57,996 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 87 transitions. Word has length 45 [2023-12-02 15:34:57,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:34:57,997 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 87 transitions. [2023-12-02 15:34:57,997 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 15:34:57,997 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 87 transitions. [2023-12-02 15:34:57,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 15:34:57,999 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:34:57,999 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 15:34:58,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 15:34:58,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:34:58,200 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:34:58,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:34:58,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1709657922, now seen corresponding path program 1 times [2023-12-02 15:34:58,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:34:58,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56233215] [2023-12-02 15:34:58,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:34:58,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:34:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:34:58,472 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 15:34:58,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:34:58,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56233215] [2023-12-02 15:34:58,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56233215] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:34:58,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780817288] [2023-12-02 15:34:58,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:34:58,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:34:58,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:34:58,474 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:34:58,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 15:34:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:34:58,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:34:58,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:34:58,846 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 15:34:58,847 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:34:58,903 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 15:34:58,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780817288] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:34:58,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [60045807] [2023-12-02 15:34:58,906 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2023-12-02 15:34:58,907 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:34:58,907 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:34:58,907 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:34:58,908 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:35:24,867 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 302 for LOIs [2023-12-02 15:35:31,864 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:37:09,228 WARN L293 SmtUtils]: Spent 1.51m 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 15:38:48,570 WARN L293 SmtUtils]: Spent 1.54m 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 15:40:52,293 WARN L293 SmtUtils]: Spent 1.97m 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 15:41:13,479 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (= |c_#Ultimate.C_memset_#amount| 384)) (.cse0 (= |c_#Ultimate.C_memset_#value| 0)) (.cse1 (= 44 |c_#Ultimate.C_memset_#amount|))) (and (or (and .cse0 .cse1) (and .cse0 .cse2)) (let ((.cse26 (= |c_#memory_$Pointer$.base| |c_old(#memory_$Pointer$.base)|)) (.cse27 (= |c_old(#memory_int)| |c_#memory_int|)) (.cse28 (= |c_#memory_$Pointer$.offset| |c_old(#memory_$Pointer$.offset)|))) (or (and (exists ((|v_#memory_$Pointer$.offset_115| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_404| (Array Int (Array Int Int))) (|v_#memory_int_114| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_404| (Array Int (Array Int Int))) (|v_#valid_73| (Array Int Int)) (|v_#memory_int_414| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~malloc59#1.base_5| Int) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_18| Int) (|v_#length_38| (Array Int Int)) (|v_#memory_$Pointer$.base_115| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_114| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_113| (Array Int (Array Int Int))) (|v_#memory_int_113| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_113| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_114| (Array Int (Array Int Int)))) (let ((.cse11 (select (select |v_#memory_$Pointer$.base_114| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_18|) 8)) (.cse12 (select (select |v_#memory_$Pointer$.offset_113| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_18|) 8)) (.cse19 (select (select |v_#memory_$Pointer$.base_404| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_18|) 8)) (.cse20 (+ (select (select |v_#memory_$Pointer$.offset_404| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_18|) 8) 16))) (let ((.cse24 (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_18|) 8)) (.cse25 (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_18|) 8)) (.cse17 (store |v_#memory_$Pointer$.offset_404| .cse19 (store (select |v_#memory_$Pointer$.offset_404| .cse19) .cse20 8))) (.cse23 (store |v_#memory_$Pointer$.base_404| .cse19 (store (select |v_#memory_$Pointer$.base_404| .cse19) .cse20 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_18|))) (.cse5 (store |v_#memory_$Pointer$.offset_113| .cse11 (store (select |v_#memory_$Pointer$.offset_113| .cse11) .cse12 0))) (.cse22 (store |v_#memory_$Pointer$.base_114| .cse11 (store (select |v_#memory_$Pointer$.base_114| .cse11) .cse12 |v_ULTIMATE.start_main_#t~malloc59#1.base_5|)))) (let ((.cse6 (select (select |v_#memory_$Pointer$.base_113| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_18|) 8)) (.cse7 (+ (select (select |v_#memory_$Pointer$.offset_114| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_18|) 8) 20)) (.cse3 (select (select .cse22 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_18|) 8)) (.cse4 (+ 40 (select (select .cse5 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_18|) 8))) (.cse15 (select (select .cse23 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_18|) 8)) (.cse16 (+ (select (select .cse17 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_18|) 8) 4)) (.cse8 (select (select |v_#memory_$Pointer$.base_115| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_18|) 8)) (.cse9 (+ 8 (select (select |v_#memory_$Pointer$.offset_115| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_18|) 8))) (.cse18 (select (select |c_old(#memory_$Pointer$.base)| .cse24) .cse25)) (.cse21 (select (select |c_old(#memory_$Pointer$.offset)| .cse24) .cse25))) (and (not (= |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 0)) (= |c_old(#memory_int)| (store |v_#memory_int_113| .cse3 (store (select |v_#memory_int_113| .cse3) .cse4 2685476833))) (= (store .cse5 .cse3 (store (select .cse5 .cse3) .cse4 (select (select |c_old(#memory_$Pointer$.offset)| .cse3) .cse4))) |c_old(#memory_$Pointer$.offset)|) (= (select |v_#valid_73| |v_ULTIMATE.start_main_#t~malloc59#1.base_5|) 0) (= (store |v_#memory_$Pointer$.base_113| .cse6 (store (select |v_#memory_$Pointer$.base_113| .cse6) .cse7 (select (select |v_#memory_$Pointer$.base_114| .cse6) .cse7))) |v_#memory_$Pointer$.base_114|) (= (store |v_#memory_$Pointer$.base_115| .cse8 (store (select |v_#memory_$Pointer$.base_115| .cse8) .cse9 (select (select |v_#memory_$Pointer$.base_113| .cse8) .cse9))) |v_#memory_$Pointer$.base_113|) (= (let ((.cse10 (let ((.cse13 (let ((.cse14 (store |v_#memory_int_114| .cse15 (store (select |v_#memory_int_114| .cse15) .cse16 32)))) (store .cse14 .cse8 (store (select .cse14 .cse8) .cse9 5))))) (store .cse13 .cse6 (store (select .cse13 .cse6) .cse7 8))))) (store .cse10 .cse11 (store (select .cse10 .cse11) .cse12 (select (select |v_#memory_int_113| .cse11) .cse12)))) |v_#memory_int_113|) (= (store .cse17 .cse15 (store (select .cse17 .cse15) .cse16 (select (select |v_#memory_$Pointer$.offset_115| .cse15) .cse16))) |v_#memory_$Pointer$.offset_115|) (= |c_#Ultimate.C_memset_#ptr.base| .cse18) (= (store |v_#memory_$Pointer$.offset_114| .cse6 (store (select |v_#memory_$Pointer$.offset_114| .cse6) .cse7 (select (select |v_#memory_$Pointer$.offset_113| .cse6) .cse7))) |v_#memory_$Pointer$.offset_113|) (= (store |v_#memory_int_414| .cse19 (store (select |v_#memory_int_414| .cse19) .cse20 (select (select |v_#memory_int_114| .cse19) .cse20))) |v_#memory_int_114|) (= |c_#Ultimate.C_memset_#ptr.offset| .cse21) (= (store |v_#length_38| |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 384) |c_#length|) (= (store .cse22 .cse3 (store (select .cse22 .cse3) .cse4 (select (select |c_old(#memory_$Pointer$.base)| .cse3) .cse4))) |c_old(#memory_$Pointer$.base)|) (= (store .cse23 .cse15 (store (select .cse23 .cse15) .cse16 (select (select |v_#memory_$Pointer$.base_115| .cse15) .cse16))) |v_#memory_$Pointer$.base_115|) (= |v_#memory_$Pointer$.offset_114| (store |v_#memory_$Pointer$.offset_115| .cse8 (store (select |v_#memory_$Pointer$.offset_115| .cse8) .cse9 (select (select |v_#memory_$Pointer$.offset_114| .cse8) .cse9)))) (or (not (= 0 .cse18)) (not (= .cse21 0))) (<= (+ |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 1) |c_#StackHeapBarrier|) (= |c_#valid| (store |v_#valid_73| |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 1))))))) .cse26 .cse27 .cse28 .cse0 .cse2) (and .cse26 (exists ((|v_#memory_$Pointer$.offset_401| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_97| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_402| (Array Int (Array Int Int))) (|v_#memory_int_97| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_19| Int) (|v_#memory_int_411| (Array Int (Array Int Int))) (|v_#memory_int_413| (Array Int (Array Int Int))) (|v_#valid_72| (Array Int Int)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19| Int) (|v_ULTIMATE.start_main_~_ha_hashv~0#1_BEFORE_CALL_16| Int) (|v_#memory_$Pointer$.offset_97| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_~i~0#1_BEFORE_CALL_27| Int) (|v_#length_37| (Array Int Int)) (|v_#memory_$Pointer$.base_402| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_401| (Array Int (Array Int Int))) (|v_#memory_int_101| (Array Int (Array Int Int)))) (let ((.cse37 (+ |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_19| 8))) (let ((.cse31 (select |v_#memory_int_413| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19|)) (.cse30 (+ |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_19| 12)) (.cse33 (+ |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_19| 36)) (.cse39 (select |v_#memory_$Pointer$.base_97| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19|)) (.cse40 (select |v_#memory_$Pointer$.base_402| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19|)) (.cse32 (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19|) .cse37)) (.cse42 (select |v_#memory_int_97| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19|)) (.cse29 (select |v_#memory_int_101| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19|)) (.cse36 (+ |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_19| 16)) (.cse34 (select |v_#memory_$Pointer$.offset_97| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19|)) (.cse41 (+ |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_19| 28)) (.cse35 (select |v_#memory_$Pointer$.offset_402| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19|)) (.cse43 (+ 32 |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_19|))) (and (= (store |v_#memory_int_101| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19| (store .cse29 .cse30 (select .cse31 .cse30))) |v_#memory_int_413|) (= |c_#valid| (store |v_#valid_72| .cse32 1)) (= .cse32 |c_#Ultimate.C_memset_#ptr.base|) (= (store |v_#memory_$Pointer$.offset_401| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19| (store (select |v_#memory_$Pointer$.offset_401| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19|) .cse33 (select .cse34 .cse33))) |v_#memory_$Pointer$.offset_97|) (= (store |v_#memory_$Pointer$.offset_402| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19| (store (store (store .cse35 .cse36 0) .cse30 0) .cse37 0)) |c_old(#memory_$Pointer$.offset)|) (let ((.cse38 (= |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_19| 0))) (or (and (<= 1 |c_#StackHeapBarrier|) .cse38 (= |v_ULTIMATE.start_main_~i~0#1_BEFORE_CALL_27| 0)) (and .cse38 (<= |v_ULTIMATE.start_main_~i~0#1_BEFORE_CALL_27| 9)))) (not (= .cse32 0)) (= |c_old(#memory_int)| (store |v_#memory_int_413| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19| (store .cse31 .cse37 (select (select |c_old(#memory_int)| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19|) .cse37)))) (<= (+ .cse32 1) |c_#StackHeapBarrier|) (= (store |v_#memory_$Pointer$.base_401| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19| (store (select |v_#memory_$Pointer$.base_401| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19|) .cse33 (select .cse39 .cse33))) |v_#memory_$Pointer$.base_97|) (= (store |v_#memory_$Pointer$.base_402| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19| (store (store (store .cse40 .cse36 0) .cse30 0) .cse37 .cse32)) |c_old(#memory_$Pointer$.base)|) (= (select |v_#valid_72| .cse32) 0) (= |v_#memory_int_97| (store |v_#memory_int_411| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19| (store (store (select |v_#memory_int_411| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19|) .cse33 |v_ULTIMATE.start_main_~_ha_hashv~0#1_BEFORE_CALL_16|) .cse41 (select .cse42 .cse41)))) (= (store |v_#memory_$Pointer$.base_97| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19| (store (store .cse39 .cse41 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19|) .cse43 (select .cse40 .cse43))) |v_#memory_$Pointer$.base_402|) (= |c_#length| (store |v_#length_37| .cse32 44)) (= |c_#Ultimate.C_memset_#ptr.offset| (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19|) .cse37)) (= (store |v_#memory_int_97| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19| (store (store .cse42 .cse43 4) .cse36 (select .cse29 .cse36))) |v_#memory_int_101|) (= (store |v_#memory_$Pointer$.offset_97| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_19| (store (store .cse34 .cse41 |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_19|) .cse43 (select .cse35 .cse43))) |v_#memory_$Pointer$.offset_402|))))) .cse27 .cse28 .cse0 .cse1))))) is different from false [2023-12-02 15:42:33,793 WARN L293 SmtUtils]: Spent 22.88s on a formula simplification that was a NOOP. DAG size: 242 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:42:35,824 WARN L854 $PredicateComparison]: unable to prove that (and (<= |c_ULTIMATE.start_main_~i~0#1| 9) (= |c_ULTIMATE.start_main_~user~0#1.offset| 0) (= |c_ULTIMATE.start_main_~users~0#1.offset| 0) (or (and (exists ((|v_#memory_$Pointer$.offset_115| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_404| (Array Int (Array Int Int))) (|v_#memory_int_114| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_404| (Array Int (Array Int Int))) (|v_#valid_73| (Array Int Int)) (|v_#memory_int_414| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~malloc59#1.base_5| Int) (|v_#length_38| (Array Int Int)) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_20| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_115| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_114| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_113| (Array Int (Array Int Int))) (|v_#memory_int_113| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_BEFORE_CALL_33| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_113| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_114| (Array Int (Array Int Int)))) (let ((.cse6 (select (select |v_#memory_$Pointer$.base_114| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse7 (select (select |v_#memory_$Pointer$.offset_113| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse18 (select (select |v_#memory_$Pointer$.base_404| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse19 (+ 16 (select (select |v_#memory_$Pointer$.offset_404| |c_ULTIMATE.start_main_~user~0#1.base|) 8)))) (let ((.cse0 (store |v_#memory_$Pointer$.offset_404| .cse18 (store (select |v_#memory_$Pointer$.offset_404| .cse18) .cse19 8))) (.cse20 (store |v_#memory_$Pointer$.base_404| .cse18 (store (select |v_#memory_$Pointer$.base_404| .cse18) .cse19 |c_ULTIMATE.start_main_~user~0#1.base|))) (.cse17 (store |v_#memory_$Pointer$.offset_113| .cse6 (store (select |v_#memory_$Pointer$.offset_113| .cse6) .cse7 0))) (.cse14 (store |v_#memory_$Pointer$.base_114| .cse6 (store (select |v_#memory_$Pointer$.base_114| .cse6) .cse7 |v_ULTIMATE.start_main_#t~malloc59#1.base_5|)))) (let ((.cse9 (select (select |v_#memory_$Pointer$.base_113| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse10 (+ 20 (select (select |v_#memory_$Pointer$.offset_114| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse15 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse16 (+ 40 (select (select .cse17 |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse12 (select (select |v_#memory_$Pointer$.base_115| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse13 (+ (select (select |v_#memory_$Pointer$.offset_115| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 8)) (.cse1 (select (select .cse20 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse2 (+ 4 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) 8)))) (and (not (= |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 0)) (= |v_#memory_$Pointer$.offset_115| (store .cse0 .cse1 (store (select .cse0 .cse1) .cse2 (select (select |v_#memory_$Pointer$.offset_115| .cse1) .cse2)))) (let ((.cse3 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_20| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse4 (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_33| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (or (not (= (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_33| .cse3) .cse4) 0)) (not (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_20| .cse3) .cse4) 0)))) (= |v_#memory_int_113| (let ((.cse5 (let ((.cse8 (let ((.cse11 (store |v_#memory_int_114| .cse1 (store (select |v_#memory_int_114| .cse1) .cse2 32)))) (store .cse11 .cse12 (store (select .cse11 .cse12) .cse13 5))))) (store .cse8 .cse9 (store (select .cse8 .cse9) .cse10 8))))) (store .cse5 .cse6 (store (select .cse5 .cse6) .cse7 (select (select |v_#memory_int_113| .cse6) .cse7))))) (= (store |v_#memory_$Pointer$.offset_115| .cse12 (store (select |v_#memory_$Pointer$.offset_115| .cse12) .cse13 (select (select |v_#memory_$Pointer$.offset_114| .cse12) .cse13))) |v_#memory_$Pointer$.offset_114|) (= (store .cse14 .cse15 (store (select .cse14 .cse15) .cse16 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_20| .cse15) .cse16))) |v_old(#memory_$Pointer$.base)_AFTER_CALL_20|) (= |v_#memory_$Pointer$.offset_113| (store |v_#memory_$Pointer$.offset_114| .cse9 (store (select |v_#memory_$Pointer$.offset_114| .cse9) .cse10 (select (select |v_#memory_$Pointer$.offset_113| .cse9) .cse10)))) (= (select |v_#valid_73| |v_ULTIMATE.start_main_#t~malloc59#1.base_5|) 0) (= (store |v_#memory_$Pointer$.base_113| .cse9 (store (select |v_#memory_$Pointer$.base_113| .cse9) .cse10 (select (select |v_#memory_$Pointer$.base_114| .cse9) .cse10))) |v_#memory_$Pointer$.base_114|) (= (store .cse17 .cse15 (store (select .cse17 .cse15) .cse16 (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_33| .cse15) .cse16))) |v_#memory_$Pointer$.offset_BEFORE_CALL_33|) (= (store |v_#memory_int_414| .cse18 (store (select |v_#memory_int_414| .cse18) .cse19 (select (select |v_#memory_int_114| .cse18) .cse19))) |v_#memory_int_114|) (= (store |v_#length_38| |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 384) |c_#length|) (= (store |v_#memory_$Pointer$.base_115| .cse12 (store (select |v_#memory_$Pointer$.base_115| .cse12) .cse13 (select (select |v_#memory_$Pointer$.base_113| .cse12) .cse13))) |v_#memory_$Pointer$.base_113|) (= (store .cse20 .cse1 (store (select .cse20 .cse1) .cse2 (select (select |v_#memory_$Pointer$.base_115| .cse1) .cse2))) |v_#memory_$Pointer$.base_115|) (<= (+ |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 1) |c_#StackHeapBarrier|) (= |c_#valid| (store |v_#valid_73| |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 1))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_16| Int)) (and (<= 0 |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_16|) (<= 384 (mod |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_16| 4294967296))))) (and (exists ((|v_#memory_$Pointer$.offset_115| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_404| (Array Int (Array Int Int))) (|v_#memory_int_114| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_404| (Array Int (Array Int Int))) (|v_#valid_73| (Array Int Int)) (|v_#memory_int_414| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~malloc59#1.base_5| Int) (|v_#length_38| (Array Int Int)) (|v_#memory_$Pointer$.base_BEFORE_CALL_31| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_115| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_114| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_113| (Array Int (Array Int Int))) (|v_#memory_int_113| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_113| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_114| (Array Int (Array Int Int)))) (let ((.cse38 (select (select |v_#memory_$Pointer$.base_404| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse39 (+ 16 (select (select |v_#memory_$Pointer$.offset_404| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse27 (select (select |v_#memory_$Pointer$.base_114| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse28 (select (select |v_#memory_$Pointer$.offset_113| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (let ((.cse41 (store |v_#memory_$Pointer$.offset_113| .cse27 (store (select |v_#memory_$Pointer$.offset_113| .cse27) .cse28 0))) (.cse35 (store |v_#memory_$Pointer$.base_114| .cse27 (store (select |v_#memory_$Pointer$.base_114| .cse27) .cse28 |v_ULTIMATE.start_main_#t~malloc59#1.base_5|))) (.cse21 (store |v_#memory_$Pointer$.offset_404| .cse38 (store (select |v_#memory_$Pointer$.offset_404| .cse38) .cse39 8))) (.cse40 (store |v_#memory_$Pointer$.base_404| .cse38 (store (select |v_#memory_$Pointer$.base_404| .cse38) .cse39 |c_ULTIMATE.start_main_~user~0#1.base|)))) (let ((.cse30 (select (select |v_#memory_$Pointer$.base_113| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse31 (+ 20 (select (select |v_#memory_$Pointer$.offset_114| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse33 (select (select |v_#memory_$Pointer$.base_115| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse34 (+ (select (select |v_#memory_$Pointer$.offset_115| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 8)) (.cse22 (select (select .cse40 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse23 (+ 4 (select (select .cse21 |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse36 (select (select .cse35 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse37 (+ 40 (select (select .cse41 |c_ULTIMATE.start_main_~user~0#1.base|) 8)))) (and (not (= |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 0)) (= |v_#memory_$Pointer$.offset_115| (store .cse21 .cse22 (store (select .cse21 .cse22) .cse23 (select (select |v_#memory_$Pointer$.offset_115| .cse22) .cse23)))) (let ((.cse24 (select (select |v_#memory_$Pointer$.base_BEFORE_CALL_31| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse25 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (or (not (= (select (select |v_#memory_$Pointer$.base_BEFORE_CALL_31| .cse24) .cse25) 0)) (not (= (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| .cse24) .cse25) 0)))) (= |v_#memory_int_113| (let ((.cse26 (let ((.cse29 (let ((.cse32 (store |v_#memory_int_114| .cse22 (store (select |v_#memory_int_114| .cse22) .cse23 32)))) (store .cse32 .cse33 (store (select .cse32 .cse33) .cse34 5))))) (store .cse29 .cse30 (store (select .cse29 .cse30) .cse31 8))))) (store .cse26 .cse27 (store (select .cse26 .cse27) .cse28 (select (select |v_#memory_int_113| .cse27) .cse28))))) (= (store |v_#memory_$Pointer$.offset_115| .cse33 (store (select |v_#memory_$Pointer$.offset_115| .cse33) .cse34 (select (select |v_#memory_$Pointer$.offset_114| .cse33) .cse34))) |v_#memory_$Pointer$.offset_114|) (= |v_#memory_$Pointer$.offset_113| (store |v_#memory_$Pointer$.offset_114| .cse30 (store (select |v_#memory_$Pointer$.offset_114| .cse30) .cse31 (select (select |v_#memory_$Pointer$.offset_113| .cse30) .cse31)))) (= (select |v_#valid_73| |v_ULTIMATE.start_main_#t~malloc59#1.base_5|) 0) (= |v_#memory_$Pointer$.base_BEFORE_CALL_31| (store .cse35 .cse36 (store (select .cse35 .cse36) .cse37 (select (select |v_#memory_$Pointer$.base_BEFORE_CALL_31| .cse36) .cse37)))) (= (store |v_#memory_$Pointer$.base_113| .cse30 (store (select |v_#memory_$Pointer$.base_113| .cse30) .cse31 (select (select |v_#memory_$Pointer$.base_114| .cse30) .cse31))) |v_#memory_$Pointer$.base_114|) (= (store |v_#memory_int_414| .cse38 (store (select |v_#memory_int_414| .cse38) .cse39 (select (select |v_#memory_int_114| .cse38) .cse39))) |v_#memory_int_114|) (= (store |v_#length_38| |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 384) |c_#length|) (= (store |v_#memory_$Pointer$.base_115| .cse33 (store (select |v_#memory_$Pointer$.base_115| .cse33) .cse34 (select (select |v_#memory_$Pointer$.base_113| .cse33) .cse34))) |v_#memory_$Pointer$.base_113|) (= (store .cse40 .cse22 (store (select .cse40 .cse22) .cse23 (select (select |v_#memory_$Pointer$.base_115| .cse22) .cse23))) |v_#memory_$Pointer$.base_115|) (<= (+ |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 1) |c_#StackHeapBarrier|) (= |c_#valid| (store |v_#valid_73| |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 1)) (= |v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| (store .cse41 .cse36 (store (select .cse41 .cse36) .cse37 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| .cse36) .cse37))))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_15| Int)) (and (<= 384 (mod |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_15| 4294967296)) (<= 0 |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_15|))))) (= |c_ULTIMATE.start_main_~users~0#1.base| 0)) is different from false [2023-12-02 15:43:36,930 WARN L293 SmtUtils]: Spent 18.48s 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 15:45:07,607 WARN L293 SmtUtils]: Spent 42.39s 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 15:46:36,596 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1632#(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 15:46:36,596 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 15:46:36,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:46:36,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-12-02 15:46:36,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512290001] [2023-12-02 15:46:36,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 15:46:36,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:46:36,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:46:36,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:46:36,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=691, Unknown=87, NotChecked=114, Total=992 [2023-12-02 15:46:36,599 INFO L87 Difference]: Start difference. First operand 77 states and 87 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 15:46:38,625 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 15:46:40,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:46:42,719 WARN L539 Checker$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 15:46:44,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:46:46,755 WARN L539 Checker$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 15:46:48,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:46:50,854 WARN L539 Checker$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 15:46:52,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:46:54,878 WARN L539 Checker$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 15:46:56,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:46:58,896 WARN L539 Checker$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 15:47:00,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:47:03,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:47:05,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:47:07,068 WARN L539 Checker$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 15:47:09,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:47:11,107 WARN L539 Checker$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 15:47:13,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:47:15,128 WARN L539 Checker$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 15:47:18,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:47:18,840 INFO L93 Difference]: Finished difference Result 218 states and 252 transitions. [2023-12-02 15:47:18,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:47:18,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2023-12-02 15:47:18,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:47:18,843 INFO L225 Difference]: With dead ends: 218 [2023-12-02 15:47:18,843 INFO L226 Difference]: Without dead ends: 214 [2023-12-02 15:47:18,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 664.7s TimeCoverageRelationStatistics Valid=100, Invalid=691, Unknown=87, NotChecked=114, Total=992 [2023-12-02 15:47:18,845 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 175 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:47:18,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 212 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 19 Unknown, 0 Unchecked, 42.2s Time] [2023-12-02 15:47:18,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-12-02 15:47:18,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2023-12-02 15:47:18,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 200 states have (on average 1.105) internal successors, (221), 199 states have internal predecessors, (221), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-02 15:47:18,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 245 transitions. [2023-12-02 15:47:18,874 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 245 transitions. Word has length 46 [2023-12-02 15:47:18,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:47:18,874 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 245 transitions. [2023-12-02 15:47:18,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 15:47:18,874 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 245 transitions. [2023-12-02 15:47:18,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-02 15:47:18,877 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:47:18,877 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:47:18,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 15:47:19,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:47:19,078 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:47:19,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:47:19,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1143957926, now seen corresponding path program 1 times [2023-12-02 15:47:19,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:47:19,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333470382] [2023-12-02 15:47:19,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:47:19,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:47:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:47:20,023 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 4 proven. 33 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-12-02 15:47:20,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:47:20,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333470382] [2023-12-02 15:47:20,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333470382] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:47:20,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295026760] [2023-12-02 15:47:20,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:47:20,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:47:20,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:47:20,026 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:47:20,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5578437-4784-42fb-a60f-48ac0497a17b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 15:47:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:47:20,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 1247 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 15:47:20,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:47:21,012 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 15:47:21,012 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:47:21,329 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 15:47:21,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295026760] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:47:21,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [511745804] [2023-12-02 15:47:21,334 INFO L159 IcfgInterpreter]: Started Sifa with 44 locations of interest [2023-12-02 15:47:21,334 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:47:21,334 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:47:21,335 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:47:21,335 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:47:41,556 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 301 for LOIs [2023-12-02 15:47:47,229 INFO L180 IcfgInterpreter]: Interpretation finished