./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/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_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/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_3931798a-926a-4e33-a8f2-9fc4c4de46f6/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 13:21:41,989 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:21:42,060 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:21:42,065 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:21:42,065 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:21:42,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:21:42,091 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:21:42,091 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:21:42,092 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:21:42,093 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:21:42,093 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:21:42,094 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:21:42,095 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:21:42,095 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:21:42,096 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:21:42,097 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:21:42,097 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:21:42,098 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:21:42,098 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:21:42,099 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:21:42,100 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:21:42,100 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:21:42,101 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:21:42,102 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:21:42,102 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:21:42,103 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:21:42,103 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:21:42,103 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:21:42,104 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:21:42,104 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:21:42,105 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:21:42,105 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:21:42,105 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:21:42,106 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:21:42,106 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:21:42,106 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:21:42,106 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:21:42,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:21:42,107 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:21:42,107 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:21:42,107 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:21:42,108 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:21:42,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:21:42,108 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:21:42,108 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:21:42,108 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:21:42,109 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:21:42,109 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_3931798a-926a-4e33-a8f2-9fc4c4de46f6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 [2023-12-02 13:21:42,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:21:42,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:21:42,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:21:42,357 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:21:42,358 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:21:42,359 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.i [2023-12-02 13:21:45,306 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:21:45,560 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:21:45,560 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.i [2023-12-02 13:21:45,579 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/data/b101f1a2f/6fea16183b4b4e12a48a9344d85e5b72/FLAGaac59393e [2023-12-02 13:21:45,595 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/data/b101f1a2f/6fea16183b4b4e12a48a9344d85e5b72 [2023-12-02 13:21:45,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:21:45,600 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:21:45,601 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:21:45,601 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:21:45,607 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:21:45,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:21:45" (1/1) ... [2023-12-02 13:21:45,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59ce19dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:45, skipping insertion in model container [2023-12-02 13:21:45,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:21:45" (1/1) ... [2023-12-02 13:21:45,691 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:21:46,052 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_3931798a-926a-4e33-a8f2-9fc4c4de46f6/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.i[33519,33532] [2023-12-02 13:21:46,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:21:46,151 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:21:46,186 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_3931798a-926a-4e33-a8f2-9fc4c4de46f6/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.i[33519,33532] [2023-12-02 13:21:46,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:21:46,280 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:21:46,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:46 WrapperNode [2023-12-02 13:21:46,281 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:21:46,282 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:21:46,282 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:21:46,283 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:21:46,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:46" (1/1) ... [2023-12-02 13:21:46,315 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:46" (1/1) ... [2023-12-02 13:21:46,374 INFO L138 Inliner]: procedures = 177, calls = 227, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 916 [2023-12-02 13:21:46,375 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:21:46,375 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:21:46,376 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:21:46,376 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:21:46,386 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:46" (1/1) ... [2023-12-02 13:21:46,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:46" (1/1) ... [2023-12-02 13:21:46,397 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:46" (1/1) ... [2023-12-02 13:21:46,397 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:46" (1/1) ... [2023-12-02 13:21:46,438 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:46" (1/1) ... [2023-12-02 13:21:46,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:46" (1/1) ... [2023-12-02 13:21:46,453 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:46" (1/1) ... [2023-12-02 13:21:46,459 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:46" (1/1) ... [2023-12-02 13:21:46,468 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:21:46,469 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:21:46,470 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:21:46,470 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:21:46,471 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:46" (1/1) ... [2023-12-02 13:21:46,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:21:46,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:21:46,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:21:46,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:21:46,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 13:21:46,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 13:21:46,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 13:21:46,538 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 13:21:46,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 13:21:46,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:21:46,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 13:21:46,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 13:21:46,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 13:21:46,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 13:21:46,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:21:46,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:21:46,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:21:46,733 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:21:46,736 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:21:47,682 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:21:48,478 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:21:48,478 INFO L309 CfgBuilder]: Removed 40 assume(true) statements. [2023-12-02 13:21:48,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:21:48 BoogieIcfgContainer [2023-12-02 13:21:48,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:21:48,482 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:21:48,482 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:21:48,484 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:21:48,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:21:45" (1/3) ... [2023-12-02 13:21:48,485 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a29c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:21:48, skipping insertion in model container [2023-12-02 13:21:48,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:46" (2/3) ... [2023-12-02 13:21:48,486 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a29c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:21:48, skipping insertion in model container [2023-12-02 13:21:48,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:21:48" (3/3) ... [2023-12-02 13:21:48,487 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_nondet_test1-2.i [2023-12-02 13:21:48,504 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:21:48,504 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:21:48,550 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:21:48,556 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;@6933596a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:21:48,556 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:21:48,560 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 13:21:48,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 13:21:48,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:21:48,567 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 13:21:48,567 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:21:48,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:21:48,573 INFO L85 PathProgramCache]: Analyzing trace with hash 900698123, now seen corresponding path program 1 times [2023-12-02 13:21:48,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:21:48,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307550892] [2023-12-02 13:21:48,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:21:48,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:21:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:21:48,736 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 13:21:48,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:21:48,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307550892] [2023-12-02 13:21:48,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307550892] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:21:48,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:21:48,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:21:48,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582019922] [2023-12-02 13:21:48,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:21:48,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:21:48,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:21:48,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:21:48,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:21:48,773 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 13:21:50,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:21:52,830 WARN L539 Checker$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 13:21:55,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:21:57,059 WARN L539 Checker$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 13:21:59,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:22:01,101 WARN L539 Checker$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 13:22:02,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:22:02,754 INFO L93 Difference]: Finished difference Result 205 states and 346 transitions. [2023-12-02 13:22:02,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:22:02,761 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 13:22:02,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:22:02,769 INFO L225 Difference]: With dead ends: 205 [2023-12-02 13:22:02,770 INFO L226 Difference]: Without dead ends: 112 [2023-12-02 13:22:02,773 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 13:22:02,777 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 53 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s 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, 13.9s IncrementalHoareTripleChecker+Time [2023-12-02 13:22:02,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 136 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 6 Unknown, 0 Unchecked, 13.9s Time] [2023-12-02 13:22:02,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-12-02 13:22:02,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 61. [2023-12-02 13:22:02,818 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 13:22:02,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions. [2023-12-02 13:22:02,821 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 70 transitions. Word has length 5 [2023-12-02 13:22:02,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:22:02,822 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 70 transitions. [2023-12-02 13:22:02,822 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 13:22:02,822 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 70 transitions. [2023-12-02 13:22:02,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-02 13:22:02,825 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:22:02,825 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 13:22:02,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:22:02,825 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:22:02,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:22:02,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1690037959, now seen corresponding path program 1 times [2023-12-02 13:22:02,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:22:02,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635616559] [2023-12-02 13:22:02,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:22:02,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:22:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:22:03,155 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 13:22:03,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:22:03,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635616559] [2023-12-02 13:22:03,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635616559] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:22:03,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:22:03,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:22:03,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728510993] [2023-12-02 13:22:03,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:22:03,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:22:03,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:22:03,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:22:03,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:22:03,159 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 13:22:05,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:22:07,216 WARN L539 Checker$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 13:22:09,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:22:11,332 WARN L539 Checker$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 13:22:13,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:22:15,361 WARN L539 Checker$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 13:22:16,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:22:16,375 INFO L93 Difference]: Finished difference Result 134 states and 154 transitions. [2023-12-02 13:22:16,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:22:16,379 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 13:22:16,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:22:16,381 INFO L225 Difference]: With dead ends: 134 [2023-12-02 13:22:16,381 INFO L226 Difference]: Without dead ends: 75 [2023-12-02 13:22:16,382 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 13:22:16,383 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 11 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:22:16,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 92 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 6 Unknown, 0 Unchecked, 13.2s Time] [2023-12-02 13:22:16,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-12-02 13:22:16,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-12-02 13:22:16,394 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 13:22:16,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2023-12-02 13:22:16,396 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 32 [2023-12-02 13:22:16,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:22:16,396 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2023-12-02 13:22:16,397 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 13:22:16,397 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2023-12-02 13:22:16,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 13:22:16,398 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:22:16,399 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 13:22:16,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 13:22:16,399 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:22:16,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:22:16,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1382947218, now seen corresponding path program 1 times [2023-12-02 13:22:16,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:22:16,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389219984] [2023-12-02 13:22:16,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:22:16,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:22:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:22:16,679 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 13:22:16,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:22:16,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389219984] [2023-12-02 13:22:16,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389219984] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:22:16,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715466754] [2023-12-02 13:22:16,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:22:16,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:22:16,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:22:16,683 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:22:16,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:22:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:22:17,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:22:17,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:22:17,152 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 13:22:17,152 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:22:17,235 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 13:22:17,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715466754] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:22:17,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1683416591] [2023-12-02 13:22:17,259 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2023-12-02 13:22:17,259 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:22:17,263 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:22:17,293 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:22:17,294 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:22:23,806 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 119 for LOIs [2023-12-02 13:22:23,841 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:22:31,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1683416591] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:22:31,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:22:31,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4, 4, 4] total 18 [2023-12-02 13:22:31,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52874334] [2023-12-02 13:22:31,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:22:31,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 13:22:31,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:22:31,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 13:22:31,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=209, Unknown=5, NotChecked=0, Total=306 [2023-12-02 13:22:31,701 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 13:22:33,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:22:35,952 WARN L539 Checker$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 13:22:37,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:22:39,970 WARN L539 Checker$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 13:22:41,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:22:43,989 WARN L539 Checker$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 13:22:46,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:22:48,015 WARN L539 Checker$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 13:22:50,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:22:52,036 WARN L539 Checker$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 13:22:53,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:22:55,854 WARN L539 Checker$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 13:22:58,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:23:00,882 WARN L539 Checker$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 13:23:03,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:23:07,902 WARN L539 Checker$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 13:23:09,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:23:11,922 WARN L539 Checker$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 13:23:13,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:23:15,948 WARN L539 Checker$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 13:23:17,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:23:19,973 WARN L539 Checker$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 13:23:21,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:23:23,989 WARN L539 Checker$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 13:23:26,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:23:28,023 WARN L539 Checker$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 13:23:30,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:23:32,045 WARN L539 Checker$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 13:23:34,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:23:36,070 WARN L539 Checker$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 13:23:38,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:23:40,087 WARN L539 Checker$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 13:23:42,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:23:44,104 WARN L539 Checker$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 13:23:46,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:23:48,136 WARN L539 Checker$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 13:23:50,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:23:52,159 WARN L539 Checker$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 13:23:54,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:23:56,178 WARN L539 Checker$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 13:23:58,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:24:01,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-02 13:24:02,773 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 [0] [2023-12-02 13:24:02,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:24:02,774 INFO L93 Difference]: Finished difference Result 153 states and 177 transitions. [2023-12-02 13:24:02,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 13:24:02,782 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 13:24:02,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:24:02,783 INFO L225 Difference]: With dead ends: 153 [2023-12-02 13:24:02,783 INFO L226 Difference]: Without dead ends: 83 [2023-12-02 13:24:02,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=103, Invalid=234, Unknown=5, NotChecked=0, Total=342 [2023-12-02 13:24:02,785 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 9 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 2 mSolverCounterUnsat, 47 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 47 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90.8s IncrementalHoareTripleChecker+Time [2023-12-02 13:24:02,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 209 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 232 Invalid, 47 Unknown, 0 Unchecked, 90.8s Time] [2023-12-02 13:24:02,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-12-02 13:24:02,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 77. [2023-12-02 13:24:02,802 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 13:24:02,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 87 transitions. [2023-12-02 13:24:02,804 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 87 transitions. Word has length 45 [2023-12-02 13:24:02,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:24:02,804 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 87 transitions. [2023-12-02 13:24:02,805 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 13:24:02,805 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 87 transitions. [2023-12-02 13:24:02,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 13:24:02,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:24:02,807 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 13:24:02,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:24:03,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:24:03,008 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:24:03,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:24:03,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1709657922, now seen corresponding path program 1 times [2023-12-02 13:24:03,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:24:03,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522942770] [2023-12-02 13:24:03,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:24:03,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:24:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:24:03,286 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 13:24:03,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:24:03,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522942770] [2023-12-02 13:24:03,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522942770] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:24:03,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820721392] [2023-12-02 13:24:03,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:24:03,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:24:03,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:24:03,289 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:24:03,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 13:24:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:24:03,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:24:03,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:24:03,661 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 13:24:03,661 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:24:03,720 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 13:24:03,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820721392] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:24:03,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [104604824] [2023-12-02 13:24:03,724 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2023-12-02 13:24:03,724 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:24:03,725 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:24:03,725 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:24:03,725 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:24:27,984 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 302 for LOIs [2023-12-02 13:24:33,409 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:25:49,269 WARN L293 SmtUtils]: Spent 1.17m 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 13:27:27,973 WARN L293 SmtUtils]: Spent 1.58m 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 13:29:26,119 WARN L293 SmtUtils]: Spent 1.86m 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 13:29:50,548 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 13:30:10,315 WARN L854 $PredicateComparison]: unable to prove that (and (<= |c_ULTIMATE.start_main_~i~0#1| 9) (= |c_ULTIMATE.start_main_~user~0#1.offset| 0) (= |c_ULTIMATE.start_main_~users~0#1.offset| 0) (= |c_ULTIMATE.start_main_~users~0#1.base| 0) (let ((.cse0 (= |c_ULTIMATE.start_main_#t~mem65#1.offset| |c_ULTIMATE.start_main_#t~memset~res66#1.offset|)) (.cse22 (= |c_ULTIMATE.start_main_#t~memset~res66#1.base| |c_ULTIMATE.start_main_#t~mem65#1.base|))) (or (and .cse0 (exists ((|v_#memory_$Pointer$.offset_115| (Array Int (Array Int Int))) (|v_#memory_$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$.offset_114| (Array Int (Array Int Int)))) (let ((.cse7 (select (select |v_#memory_$Pointer$.base_114| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse8 (select (select |v_#memory_$Pointer$.offset_113| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse19 (select (select |v_#memory_$Pointer$.base_404| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse20 (+ 16 (select (select |v_#memory_$Pointer$.offset_404| |c_ULTIMATE.start_main_~user~0#1.base|) 8)))) (let ((.cse1 (store |v_#memory_$Pointer$.offset_404| .cse19 (store (select |v_#memory_$Pointer$.offset_404| .cse19) .cse20 8))) (.cse21 (store |v_#memory_$Pointer$.base_404| .cse19 (store (select |v_#memory_$Pointer$.base_404| .cse19) .cse20 |c_ULTIMATE.start_main_~user~0#1.base|))) (.cse18 (store |v_#memory_$Pointer$.offset_113| .cse7 (store (select |v_#memory_$Pointer$.offset_113| .cse7) .cse8 0))) (.cse15 (store |v_#memory_$Pointer$.base_114| .cse7 (store (select |v_#memory_$Pointer$.base_114| .cse7) .cse8 |v_ULTIMATE.start_main_#t~malloc59#1.base_5|)))) (let ((.cse5 (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_33| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse10 (select (select |v_#memory_$Pointer$.base_113| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse11 (+ 20 (select (select |v_#memory_$Pointer$.offset_114| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse16 (select (select .cse15 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse17 (+ 40 (select (select .cse18 |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse13 (select (select |v_#memory_$Pointer$.base_115| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse14 (+ (select (select |v_#memory_$Pointer$.offset_115| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 8)) (.cse2 (select (select .cse21 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse3 (+ 4 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse4 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_20| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (and (not (= |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 0)) (= |v_#memory_$Pointer$.offset_115| (store .cse1 .cse2 (store (select .cse1 .cse2) .cse3 (select (select |v_#memory_$Pointer$.offset_115| .cse2) .cse3)))) (or (not (= (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_33| .cse4) .cse5) 0)) (not (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_20| .cse4) .cse5) 0))) (= |c_ULTIMATE.start_main_#t~mem65#1.offset| (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_33| |c_ULTIMATE.start_main_#t~mem64#1.base|) |c_ULTIMATE.start_main_#t~mem64#1.offset|)) (= |v_#memory_int_113| (let ((.cse6 (let ((.cse9 (let ((.cse12 (store |v_#memory_int_114| .cse2 (store (select |v_#memory_int_114| .cse2) .cse3 32)))) (store .cse12 .cse13 (store (select .cse12 .cse13) .cse14 5))))) (store .cse9 .cse10 (store (select .cse9 .cse10) .cse11 8))))) (store .cse6 .cse7 (store (select .cse6 .cse7) .cse8 (select (select |v_#memory_int_113| .cse7) .cse8))))) (= (store |v_#memory_$Pointer$.offset_115| .cse13 (store (select |v_#memory_$Pointer$.offset_115| .cse13) .cse14 (select (select |v_#memory_$Pointer$.offset_114| .cse13) .cse14))) |v_#memory_$Pointer$.offset_114|) (= (store .cse15 .cse16 (store (select .cse15 .cse16) .cse17 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_20| .cse16) .cse17))) |v_old(#memory_$Pointer$.base)_AFTER_CALL_20|) (= |v_#memory_$Pointer$.offset_113| (store |v_#memory_$Pointer$.offset_114| .cse10 (store (select |v_#memory_$Pointer$.offset_114| .cse10) .cse11 (select (select |v_#memory_$Pointer$.offset_113| .cse10) .cse11)))) (= (select |v_#valid_73| |v_ULTIMATE.start_main_#t~malloc59#1.base_5|) 0) (= .cse5 |c_ULTIMATE.start_main_#t~mem64#1.offset|) (= (store |v_#memory_$Pointer$.base_113| .cse10 (store (select |v_#memory_$Pointer$.base_113| .cse10) .cse11 (select (select |v_#memory_$Pointer$.base_114| .cse10) .cse11))) |v_#memory_$Pointer$.base_114|) (= (store .cse18 .cse16 (store (select .cse18 .cse16) .cse17 (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_33| .cse16) .cse17))) |v_#memory_$Pointer$.offset_BEFORE_CALL_33|) (= (store |v_#memory_int_414| .cse19 (store (select |v_#memory_int_414| .cse19) .cse20 (select (select |v_#memory_int_114| .cse19) .cse20))) |v_#memory_int_114|) (= (store |v_#length_38| |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 384) |c_#length|) (= (store |v_#memory_$Pointer$.base_115| .cse13 (store (select |v_#memory_$Pointer$.base_115| .cse13) .cse14 (select (select |v_#memory_$Pointer$.base_113| .cse13) .cse14))) |v_#memory_$Pointer$.base_113|) (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_20| |c_ULTIMATE.start_main_#t~mem64#1.base|) |c_ULTIMATE.start_main_#t~mem64#1.offset|) |c_ULTIMATE.start_main_#t~mem65#1.base|) (= (store .cse21 .cse2 (store (select .cse21 .cse2) .cse3 (select (select |v_#memory_$Pointer$.base_115| .cse2) .cse3))) |v_#memory_$Pointer$.base_115|) (<= (+ |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 1) |c_#StackHeapBarrier|) (= |c_#valid| (store |v_#valid_73| |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 1)) (= |c_ULTIMATE.start_main_#t~mem64#1.base| .cse4)))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_16| Int)) (and (<= 0 |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_16|) (<= 384 (mod |v_#Ultimate.C_memset_#t~loopctr210_BEFORE_RETURN_16| 4294967296)))) .cse22) (and .cse0 (exists ((|v_#memory_$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$.offset_114| (Array Int (Array Int Int)))) (let ((.cse40 (select (select |v_#memory_$Pointer$.base_404| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse41 (+ 16 (select (select |v_#memory_$Pointer$.offset_404| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse29 (select (select |v_#memory_$Pointer$.base_114| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse30 (select (select |v_#memory_$Pointer$.offset_113| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (let ((.cse43 (store |v_#memory_$Pointer$.offset_113| .cse29 (store (select |v_#memory_$Pointer$.offset_113| .cse29) .cse30 0))) (.cse37 (store |v_#memory_$Pointer$.base_114| .cse29 (store (select |v_#memory_$Pointer$.base_114| .cse29) .cse30 |v_ULTIMATE.start_main_#t~malloc59#1.base_5|))) (.cse23 (store |v_#memory_$Pointer$.offset_404| .cse40 (store (select |v_#memory_$Pointer$.offset_404| .cse40) .cse41 8))) (.cse42 (store |v_#memory_$Pointer$.base_404| .cse40 (store (select |v_#memory_$Pointer$.base_404| .cse40) .cse41 |c_ULTIMATE.start_main_~user~0#1.base|)))) (let ((.cse26 (select (select |v_#memory_$Pointer$.base_BEFORE_CALL_31| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse32 (select (select |v_#memory_$Pointer$.base_113| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse33 (+ 20 (select (select |v_#memory_$Pointer$.offset_114| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse27 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse35 (select (select |v_#memory_$Pointer$.base_115| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse36 (+ (select (select |v_#memory_$Pointer$.offset_115| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 8)) (.cse24 (select (select .cse42 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse25 (+ 4 (select (select .cse23 |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse38 (select (select .cse37 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse39 (+ 40 (select (select .cse43 |c_ULTIMATE.start_main_~user~0#1.base|) 8)))) (and (not (= |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 0)) (= |v_#memory_$Pointer$.offset_115| (store .cse23 .cse24 (store (select .cse23 .cse24) .cse25 (select (select |v_#memory_$Pointer$.offset_115| .cse24) .cse25)))) (= |c_ULTIMATE.start_main_#t~mem64#1.base| .cse26) (or (not (= (select (select |v_#memory_$Pointer$.base_BEFORE_CALL_31| .cse26) .cse27) 0)) (not (= (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| .cse26) .cse27) 0))) (= |v_#memory_int_113| (let ((.cse28 (let ((.cse31 (let ((.cse34 (store |v_#memory_int_114| .cse24 (store (select |v_#memory_int_114| .cse24) .cse25 32)))) (store .cse34 .cse35 (store (select .cse34 .cse35) .cse36 5))))) (store .cse31 .cse32 (store (select .cse31 .cse32) .cse33 8))))) (store .cse28 .cse29 (store (select .cse28 .cse29) .cse30 (select (select |v_#memory_int_113| .cse29) .cse30))))) (= (store |v_#memory_$Pointer$.offset_115| .cse35 (store (select |v_#memory_$Pointer$.offset_115| .cse35) .cse36 (select (select |v_#memory_$Pointer$.offset_114| .cse35) .cse36))) |v_#memory_$Pointer$.offset_114|) (= |v_#memory_$Pointer$.offset_113| (store |v_#memory_$Pointer$.offset_114| .cse32 (store (select |v_#memory_$Pointer$.offset_114| .cse32) .cse33 (select (select |v_#memory_$Pointer$.offset_113| .cse32) .cse33)))) (= |c_ULTIMATE.start_main_#t~mem65#1.offset| (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| |c_ULTIMATE.start_main_#t~mem64#1.base|) |c_ULTIMATE.start_main_#t~mem64#1.offset|)) (= (select |v_#valid_73| |v_ULTIMATE.start_main_#t~malloc59#1.base_5|) 0) (= |v_#memory_$Pointer$.base_BEFORE_CALL_31| (store .cse37 .cse38 (store (select .cse37 .cse38) .cse39 (select (select |v_#memory_$Pointer$.base_BEFORE_CALL_31| .cse38) .cse39)))) (= (store |v_#memory_$Pointer$.base_113| .cse32 (store (select |v_#memory_$Pointer$.base_113| .cse32) .cse33 (select (select |v_#memory_$Pointer$.base_114| .cse32) .cse33))) |v_#memory_$Pointer$.base_114|) (= .cse27 |c_ULTIMATE.start_main_#t~mem64#1.offset|) (= (select (select |v_#memory_$Pointer$.base_BEFORE_CALL_31| |c_ULTIMATE.start_main_#t~mem64#1.base|) |c_ULTIMATE.start_main_#t~mem64#1.offset|) |c_ULTIMATE.start_main_#t~mem65#1.base|) (= (store |v_#memory_int_414| .cse40 (store (select |v_#memory_int_414| .cse40) .cse41 (select (select |v_#memory_int_114| .cse40) .cse41))) |v_#memory_int_114|) (= (store |v_#length_38| |v_ULTIMATE.start_main_#t~malloc59#1.base_5| 384) |c_#length|) (= (store |v_#memory_$Pointer$.base_115| .cse35 (store (select |v_#memory_$Pointer$.base_115| .cse35) .cse36 (select (select |v_#memory_$Pointer$.base_113| .cse35) .cse36))) |v_#memory_$Pointer$.base_113|) (= (store .cse42 .cse24 (store (select .cse42 .cse24) .cse25 (select (select |v_#memory_$Pointer$.base_115| .cse24) .cse25))) |v_#memory_$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$.offset)_AFTER_CALL_19| (store .cse43 .cse38 (store (select .cse43 .cse38) .cse39 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| .cse38) .cse39))))))))) (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|))) .cse22)))) is different from false [2023-12-02 13:31:12,232 WARN L293 SmtUtils]: Spent 17.33s 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 13:31:14,249 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| |c_ULTIMATE.start_main_~user~0#1.base|)) is different from false [2023-12-02 13:32:28,964 WARN L293 SmtUtils]: Spent 35.46s 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 13:33:44,140 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 13:33:44,140 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:33:44,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:33:44,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-12-02 13:33:44,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764382048] [2023-12-02 13:33:44,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 13:33:44,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 13:33:44,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:33:44,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 13:33:44,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=719, Unknown=63, NotChecked=174, Total=1056 [2023-12-02 13:33:44,143 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 13:33:46,174 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 13:33:48,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:33:50,257 WARN L539 Checker$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 13:33:52,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:33:54,280 WARN L539 Checker$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 13:33:56,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:33:58,373 WARN L539 Checker$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 13:34:00,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:34:02,405 WARN L539 Checker$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 13:34:04,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:34:06,420 WARN L539 Checker$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 13:34:08,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:34:10,552 WARN L539 Checker$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 13:34:12,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:34:14,575 WARN L539 Checker$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 13:34:16,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:34:18,616 WARN L539 Checker$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 13:34:20,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:34:22,631 WARN L539 Checker$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 13:34:24,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:34:25,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:34:25,397 INFO L93 Difference]: Finished difference Result 218 states and 252 transitions. [2023-12-02 13:34:25,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 13:34:25,397 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 13:34:25,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:34:25,400 INFO L225 Difference]: With dead ends: 218 [2023-12-02 13:34:25,400 INFO L226 Difference]: Without dead ends: 214 [2023-12-02 13:34:25,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 550.7s TimeCoverageRelationStatistics Valid=100, Invalid=719, Unknown=63, NotChecked=174, Total=1056 [2023-12-02 13:34:25,402 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 175 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:34:25,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 209 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 19 Unknown, 0 Unchecked, 41.2s Time] [2023-12-02 13:34:25,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-12-02 13:34:25,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2023-12-02 13:34:25,427 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 13:34:25,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 245 transitions. [2023-12-02 13:34:25,429 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 245 transitions. Word has length 46 [2023-12-02 13:34:25,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:34:25,430 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 245 transitions. [2023-12-02 13:34:25,430 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 13:34:25,430 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 245 transitions. [2023-12-02 13:34:25,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-02 13:34:25,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:34:25,436 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 13:34:25,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 13:34:25,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:34:25,636 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:34:25,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:34:25,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1143957926, now seen corresponding path program 1 times [2023-12-02 13:34:25,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:34:25,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069431861] [2023-12-02 13:34:25,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:34:25,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:34:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:34:26,641 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 13:34:26,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:34:26,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069431861] [2023-12-02 13:34:26,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069431861] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:34:26,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628980193] [2023-12-02 13:34:26,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:34:26,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:34:26,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:34:26,644 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:34:26,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3931798a-926a-4e33-a8f2-9fc4c4de46f6/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 13:34:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:34:27,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 1247 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 13:34:27,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:34:27,555 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 13:34:27,555 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:34:27,813 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 13:34:27,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628980193] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:34:27,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1268123779] [2023-12-02 13:34:27,816 INFO L159 IcfgInterpreter]: Started Sifa with 44 locations of interest [2023-12-02 13:34:27,816 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:34:27,816 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:34:27,816 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:34:27,816 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:34:53,350 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 303 for LOIs [2023-12-02 13:34:58,791 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:35:06,190 WARN L293 SmtUtils]: Spent 7.05s on a formula simplification. DAG size of input: 220 DAG size of output: 220 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:35:46,700 WARN L293 SmtUtils]: Spent 36.56s on a formula simplification. DAG size of input: 308 DAG size of output: 308 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:36:31,245 WARN L293 SmtUtils]: Spent 37.46s on a formula simplification. DAG size of input: 322 DAG size of output: 322 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)