./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/res1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/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_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/res1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/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_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/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 f274a5aba9f5a53aba1b5bf0fd0b9cf2990c13e825cbbe6f7043cc6fa5a18df6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:40:48,767 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:40:48,832 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 17:40:48,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:40:48,836 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:40:48,857 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:40:48,857 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:40:48,858 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:40:48,858 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:40:48,859 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:40:48,859 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:40:48,860 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:40:48,860 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:40:48,861 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:40:48,861 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:40:48,862 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:40:48,862 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:40:48,863 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:40:48,863 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:40:48,864 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:40:48,864 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:40:48,865 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:40:48,866 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:40:48,867 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:40:48,867 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:40:48,867 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:40:48,868 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:40:48,868 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:40:48,869 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:40:48,869 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:40:48,870 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:40:48,870 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:40:48,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:40:48,871 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:40:48,871 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:40:48,871 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:40:48,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:40:48,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:40:48,872 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:40:48,872 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:40:48,872 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:40:48,872 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:40:48,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:40:48,873 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:40:48,873 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:40:48,873 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:40:48,873 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:40:48,874 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_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f274a5aba9f5a53aba1b5bf0fd0b9cf2990c13e825cbbe6f7043cc6fa5a18df6 [2023-12-02 17:40:49,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:40:49,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:40:49,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:40:49,093 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:40:49,094 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:40:49,095 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/array-fpi/res1.c [2023-12-02 17:40:51,789 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:40:51,952 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:40:51,953 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/sv-benchmarks/c/array-fpi/res1.c [2023-12-02 17:40:51,960 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/data/f4e970aca/c5a845bbeb0541419b6e68d85dee0668/FLAGb5b546140 [2023-12-02 17:40:51,972 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/data/f4e970aca/c5a845bbeb0541419b6e68d85dee0668 [2023-12-02 17:40:51,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:40:51,976 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:40:51,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:40:51,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:40:51,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:40:51,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:40:51" (1/1) ... [2023-12-02 17:40:51,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b2e73e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:51, skipping insertion in model container [2023-12-02 17:40:51,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:40:51" (1/1) ... [2023-12-02 17:40:52,002 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:40:52,125 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_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/sv-benchmarks/c/array-fpi/res1.c[587,600] [2023-12-02 17:40:52,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:40:52,152 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:40:52,162 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_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/sv-benchmarks/c/array-fpi/res1.c[587,600] [2023-12-02 17:40:52,171 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:40:52,184 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:40:52,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:52 WrapperNode [2023-12-02 17:40:52,184 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:40:52,185 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:40:52,185 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:40:52,185 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:40:52,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:52" (1/1) ... [2023-12-02 17:40:52,198 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:52" (1/1) ... [2023-12-02 17:40:52,221 INFO L138 Inliner]: procedures = 17, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 95 [2023-12-02 17:40:52,221 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:40:52,222 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:40:52,222 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:40:52,222 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:40:52,232 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:52" (1/1) ... [2023-12-02 17:40:52,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:52" (1/1) ... [2023-12-02 17:40:52,234 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:52" (1/1) ... [2023-12-02 17:40:52,235 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:52" (1/1) ... [2023-12-02 17:40:52,241 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:52" (1/1) ... [2023-12-02 17:40:52,245 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:52" (1/1) ... [2023-12-02 17:40:52,247 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:52" (1/1) ... [2023-12-02 17:40:52,248 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:52" (1/1) ... [2023-12-02 17:40:52,250 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:40:52,251 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:40:52,252 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:40:52,252 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:40:52,253 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:52" (1/1) ... [2023-12-02 17:40:52,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:40:52,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:40:52,283 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:40:52,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:40:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:40:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:40:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 17:40:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 17:40:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 17:40:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:40:52,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:40:52,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 17:40:52,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 17:40:52,381 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:40:52,384 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:40:52,548 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:40:52,599 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:40:52,600 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-02 17:40:52,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:40:52 BoogieIcfgContainer [2023-12-02 17:40:52,601 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:40:52,604 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:40:52,604 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:40:52,607 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:40:52,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:40:51" (1/3) ... [2023-12-02 17:40:52,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1fd036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:40:52, skipping insertion in model container [2023-12-02 17:40:52,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:40:52" (2/3) ... [2023-12-02 17:40:52,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1fd036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:40:52, skipping insertion in model container [2023-12-02 17:40:52,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:40:52" (3/3) ... [2023-12-02 17:40:52,610 INFO L112 eAbstractionObserver]: Analyzing ICFG res1.c [2023-12-02 17:40:52,624 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:40:52,624 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 17:40:52,684 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:40:52,690 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;@7da51ef2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:40:52,690 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 17:40:52,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 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 17:40:52,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 17:40:52,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:40:52,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:40:52,700 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:40:52,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:40:52,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1050929854, now seen corresponding path program 1 times [2023-12-02 17:40:52,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:40:52,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972840377] [2023-12-02 17:40:52,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:40:52,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:40:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:40:52,950 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 17:40:52,950 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:40:52,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972840377] [2023-12-02 17:40:52,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972840377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:40:52,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:40:52,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:40:52,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710629327] [2023-12-02 17:40:52,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:40:52,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:40:52,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:40:52,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:40:52,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:40:52,988 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 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) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 17:40:53,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:40:53,033 INFO L93 Difference]: Finished difference Result 22 states and 31 transitions. [2023-12-02 17:40:53,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:40:53,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-12-02 17:40:53,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:40:53,043 INFO L225 Difference]: With dead ends: 22 [2023-12-02 17:40:53,043 INFO L226 Difference]: Without dead ends: 10 [2023-12-02 17:40:53,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 17:40:53,049 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:40:53,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:40:53,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-12-02 17:40:53,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-12-02 17:40:53,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 17:40:53,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2023-12-02 17:40:53,080 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 13 transitions. Word has length 8 [2023-12-02 17:40:53,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:40:53,080 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-12-02 17:40:53,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 17:40:53,081 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2023-12-02 17:40:53,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 17:40:53,081 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:40:53,082 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:40:53,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 17:40:53,082 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:40:53,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:40:53,083 INFO L85 PathProgramCache]: Analyzing trace with hash 717423753, now seen corresponding path program 1 times [2023-12-02 17:40:53,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:40:53,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778711159] [2023-12-02 17:40:53,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:40:53,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:40:53,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:40:53,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:40:53,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:40:53,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778711159] [2023-12-02 17:40:53,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778711159] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:40:53,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:40:53,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 17:40:53,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013785810] [2023-12-02 17:40:53,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:40:53,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:40:53,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:40:53,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:40:53,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:40:53,191 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 17:40:53,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:40:53,224 INFO L93 Difference]: Finished difference Result 18 states and 25 transitions. [2023-12-02 17:40:53,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:40:53,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2023-12-02 17:40:53,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:40:53,226 INFO L225 Difference]: With dead ends: 18 [2023-12-02 17:40:53,226 INFO L226 Difference]: Without dead ends: 13 [2023-12-02 17:40:53,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:40:53,228 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:40:53,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:40:53,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-12-02 17:40:53,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-12-02 17:40:53,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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 17:40:53,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2023-12-02 17:40:53,233 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 9 [2023-12-02 17:40:53,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:40:53,233 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2023-12-02 17:40:53,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 17:40:53,233 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2023-12-02 17:40:53,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 17:40:53,234 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:40:53,234 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:40:53,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 17:40:53,235 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:40:53,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:40:53,235 INFO L85 PathProgramCache]: Analyzing trace with hash -2058327758, now seen corresponding path program 1 times [2023-12-02 17:40:53,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:40:53,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247228853] [2023-12-02 17:40:53,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:40:53,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:40:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:40:54,350 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:40:54,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:40:54,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247228853] [2023-12-02 17:40:54,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247228853] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:40:54,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480973108] [2023-12-02 17:40:54,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:40:54,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:40:54,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:40:54,356 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:40:54,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 17:40:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:40:54,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 17:40:54,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:40:54,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:40:54,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-02 17:40:54,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 17:40:54,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:40:54,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 17:40:54,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:40:54,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:40:54,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-12-02 17:40:54,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:40:54,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:40:54,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2023-12-02 17:40:55,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:40:55,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:40:55,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 33 [2023-12-02 17:40:55,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:40:55,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:40:55,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 17 [2023-12-02 17:40:55,317 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:40:55,317 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:40:55,803 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:40:55,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480973108] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:40:55,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2078947495] [2023-12-02 17:40:55,820 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2023-12-02 17:40:55,820 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:40:55,823 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:40:55,827 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:40:55,828 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:40:56,612 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:40:56,937 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '209#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* 2 ~N~0) 1) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 0) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|))' at error location [2023-12-02 17:40:56,938 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:40:56,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:40:56,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 27 [2023-12-02 17:40:56,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268211749] [2023-12-02 17:40:56,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:40:56,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-02 17:40:56,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:40:56,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-02 17:40:56,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=843, Unknown=0, NotChecked=0, Total=992 [2023-12-02 17:40:56,943 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 27 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 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 17:40:57,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:40:57,586 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2023-12-02 17:40:57,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 17:40:57,586 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 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 12 [2023-12-02 17:40:57,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:40:57,587 INFO L225 Difference]: With dead ends: 19 [2023-12-02 17:40:57,587 INFO L226 Difference]: Without dead ends: 16 [2023-12-02 17:40:57,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=233, Invalid=1249, Unknown=0, NotChecked=0, Total=1482 [2023-12-02 17:40:57,589 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:40:57,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 32 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 17:40:57,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-12-02 17:40:57,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2023-12-02 17:40:57,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 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 17:40:57,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2023-12-02 17:40:57,596 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 12 [2023-12-02 17:40:57,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:40:57,597 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2023-12-02 17:40:57,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 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 17:40:57,597 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2023-12-02 17:40:57,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 17:40:57,598 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:40:57,598 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:40:57,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-02 17:40:57,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:40:57,799 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:40:57,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:40:57,799 INFO L85 PathProgramCache]: Analyzing trace with hash 616013566, now seen corresponding path program 2 times [2023-12-02 17:40:57,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:40:57,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883909241] [2023-12-02 17:40:57,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:40:57,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:40:57,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:40:57,890 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 17:40:57,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:40:57,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883909241] [2023-12-02 17:40:57,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883909241] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:40:57,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032856410] [2023-12-02 17:40:57,890 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:40:57,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:40:57,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:40:57,892 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:40:57,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 17:40:57,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-02 17:40:57,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:40:57,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 17:40:57,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:40:58,033 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 17:40:58,033 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:40:58,068 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 17:40:58,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032856410] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:40:58,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1625949987] [2023-12-02 17:40:58,071 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2023-12-02 17:40:58,071 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:40:58,072 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:40:58,072 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:40:58,072 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:40:58,555 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:40:58,739 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '366#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* 2 ~N~0) 1) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 0) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|))' at error location [2023-12-02 17:40:58,739 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:40:58,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:40:58,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2023-12-02 17:40:58,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315959353] [2023-12-02 17:40:58,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:40:58,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 17:40:58,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:40:58,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 17:40:58,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-12-02 17:40:58,742 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 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 17:40:58,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:40:58,853 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2023-12-02 17:40:58,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 17:40:58,854 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 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 13 [2023-12-02 17:40:58,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:40:58,855 INFO L225 Difference]: With dead ends: 36 [2023-12-02 17:40:58,855 INFO L226 Difference]: Without dead ends: 20 [2023-12-02 17:40:58,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-12-02 17:40:58,856 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:40:58,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 14 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:40:58,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-12-02 17:40:58,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 16. [2023-12-02 17:40:58,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 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 17:40:58,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2023-12-02 17:40:58,863 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 13 [2023-12-02 17:40:58,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:40:58,864 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2023-12-02 17:40:58,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 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 17:40:58,864 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2023-12-02 17:40:58,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 17:40:58,865 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:40:58,865 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:40:58,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 17:40:59,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:40:59,066 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:40:59,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:40:59,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1516654994, now seen corresponding path program 3 times [2023-12-02 17:40:59,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:40:59,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65844465] [2023-12-02 17:40:59,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:40:59,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:40:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:40:59,146 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 17:40:59,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:40:59,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65844465] [2023-12-02 17:40:59,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65844465] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:40:59,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074724480] [2023-12-02 17:40:59,146 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 17:40:59,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:40:59,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:40:59,147 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:40:59,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 17:40:59,205 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 17:40:59,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:40:59,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 17:40:59,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:40:59,246 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 17:40:59,246 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:40:59,286 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 17:40:59,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074724480] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:40:59,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [130979435] [2023-12-02 17:40:59,288 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2023-12-02 17:40:59,288 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:40:59,289 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:40:59,289 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:40:59,289 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:40:59,642 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:40:59,862 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '558#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* 2 ~N~0) 1) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 0) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|))' at error location [2023-12-02 17:40:59,863 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:40:59,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:40:59,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2023-12-02 17:40:59,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873993836] [2023-12-02 17:40:59,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:40:59,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 17:40:59,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:40:59,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 17:40:59,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2023-12-02 17:40:59,864 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 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 17:40:59,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:40:59,958 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2023-12-02 17:40:59,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 17:40:59,960 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 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 15 [2023-12-02 17:40:59,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:40:59,960 INFO L225 Difference]: With dead ends: 20 [2023-12-02 17:40:59,960 INFO L226 Difference]: Without dead ends: 17 [2023-12-02 17:40:59,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 28 SyntacticMatches, 9 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2023-12-02 17:40:59,962 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:40:59,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 10 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:40:59,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-12-02 17:40:59,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-12-02 17:40:59,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 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 17:40:59,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2023-12-02 17:40:59,968 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 15 [2023-12-02 17:40:59,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:40:59,969 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2023-12-02 17:40:59,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 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 17:40:59,969 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-12-02 17:40:59,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 17:40:59,969 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:40:59,970 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:40:59,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 17:41:00,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:41:00,170 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:41:00,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:41:00,171 INFO L85 PathProgramCache]: Analyzing trace with hash 228000066, now seen corresponding path program 4 times [2023-12-02 17:41:00,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:41:00,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229493049] [2023-12-02 17:41:00,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:41:00,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:41:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:41:01,885 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:41:01,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:41:01,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229493049] [2023-12-02 17:41:01,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229493049] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:41:01,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438519127] [2023-12-02 17:41:01,885 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 17:41:01,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:41:01,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:41:01,887 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:41:01,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 17:41:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:41:01,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 57 conjunts are in the unsatisfiable core [2023-12-02 17:41:01,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:41:01,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 17:41:01,999 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-02 17:41:01,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2023-12-02 17:41:02,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 17:41:02,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-12-02 17:41:02,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2023-12-02 17:41:02,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41 [2023-12-02 17:41:02,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 51 [2023-12-02 17:41:02,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 53 [2023-12-02 17:41:02,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 57 [2023-12-02 17:41:02,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 59 [2023-12-02 17:41:03,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 27 [2023-12-02 17:41:03,109 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:41:03,109 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:41:05,129 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:41:05,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438519127] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:41:05,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1704892936] [2023-12-02 17:41:05,131 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2023-12-02 17:41:05,131 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:41:05,131 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:41:05,131 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:41:05,131 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:41:05,611 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:41:06,014 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '760#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* 2 ~N~0) 1) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 0) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|))' at error location [2023-12-02 17:41:06,014 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:41:06,014 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:41:06,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 39 [2023-12-02 17:41:06,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955212809] [2023-12-02 17:41:06,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:41:06,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-12-02 17:41:06,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:41:06,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-12-02 17:41:06,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=1651, Unknown=0, NotChecked=0, Total=1892 [2023-12-02 17:41:06,018 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 39 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 39 states have internal predecessors, (42), 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 17:41:11,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:41:11,895 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2023-12-02 17:41:11,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 17:41:11,896 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 39 states have internal predecessors, (42), 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 16 [2023-12-02 17:41:11,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:41:11,896 INFO L225 Difference]: With dead ends: 37 [2023-12-02 17:41:11,897 INFO L226 Difference]: Without dead ends: 34 [2023-12-02 17:41:11,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 916 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=425, Invalid=2997, Unknown=0, NotChecked=0, Total=3422 [2023-12-02 17:41:11,899 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-02 17:41:11,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 52 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-02 17:41:11,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-12-02 17:41:11,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 19. [2023-12-02 17:41:11,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 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 17:41:11,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2023-12-02 17:41:11,912 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 16 [2023-12-02 17:41:11,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:41:11,912 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2023-12-02 17:41:11,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 39 states have internal predecessors, (42), 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 17:41:11,913 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-12-02 17:41:11,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 17:41:11,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:41:11,913 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:41:11,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 17:41:12,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 17:41:12,114 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:41:12,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:41:12,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1522267922, now seen corresponding path program 5 times [2023-12-02 17:41:12,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:41:12,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231547226] [2023-12-02 17:41:12,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:41:12,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:41:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:41:12,223 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 17:41:12,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:41:12,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231547226] [2023-12-02 17:41:12,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231547226] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:41:12,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10181780] [2023-12-02 17:41:12,224 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:41:12,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:41:12,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:41:12,225 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:41:12,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 17:41:12,324 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-02 17:41:12,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:41:12,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 17:41:12,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:41:12,374 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 17:41:12,374 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:41:12,409 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 17:41:12,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10181780] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:41:12,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [885933221] [2023-12-02 17:41:12,410 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2023-12-02 17:41:12,411 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:41:12,411 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:41:12,411 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:41:12,411 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:41:12,744 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:41:12,931 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1004#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* 2 ~N~0) 1) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 0) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|))' at error location [2023-12-02 17:41:12,931 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:41:12,931 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:41:12,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2023-12-02 17:41:12,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772772164] [2023-12-02 17:41:12,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:41:12,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 17:41:12,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:41:12,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 17:41:12,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2023-12-02 17:41:12,932 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 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 17:41:13,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:41:13,040 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2023-12-02 17:41:13,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 17:41:13,041 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 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 17 [2023-12-02 17:41:13,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:41:13,041 INFO L225 Difference]: With dead ends: 45 [2023-12-02 17:41:13,041 INFO L226 Difference]: Without dead ends: 24 [2023-12-02 17:41:13,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 35 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=395, Unknown=0, NotChecked=0, Total=506 [2023-12-02 17:41:13,042 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:41:13,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 16 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:41:13,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-12-02 17:41:13,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2023-12-02 17:41:13,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 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 17:41:13,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2023-12-02 17:41:13,053 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 17 [2023-12-02 17:41:13,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:41:13,053 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2023-12-02 17:41:13,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 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 17:41:13,053 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-12-02 17:41:13,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 17:41:13,054 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:41:13,054 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:41:13,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 17:41:13,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:41:13,254 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:41:13,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:41:13,255 INFO L85 PathProgramCache]: Analyzing trace with hash 681607934, now seen corresponding path program 6 times [2023-12-02 17:41:13,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:41:13,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84403211] [2023-12-02 17:41:13,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:41:13,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:41:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:41:13,368 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 17:41:13,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:41:13,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84403211] [2023-12-02 17:41:13,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84403211] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:41:13,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948722599] [2023-12-02 17:41:13,368 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 17:41:13,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:41:13,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:41:13,370 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:41:13,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 17:41:13,445 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 17:41:13,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:41:13,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 17:41:13,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:41:13,490 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 17:41:13,490 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:41:13,525 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 17:41:13,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948722599] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:41:13,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [637426561] [2023-12-02 17:41:13,527 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2023-12-02 17:41:13,528 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:41:13,528 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:41:13,528 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:41:13,528 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:41:13,772 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:41:13,974 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1252#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* 2 ~N~0) 1) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 0) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|))' at error location [2023-12-02 17:41:13,974 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:41:13,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:41:13,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2023-12-02 17:41:13,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236818186] [2023-12-02 17:41:13,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:41:13,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 17:41:13,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:41:13,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 17:41:13,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2023-12-02 17:41:13,977 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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 17:41:14,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:41:14,095 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2023-12-02 17:41:14,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 17:41:14,095 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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 19 [2023-12-02 17:41:14,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:41:14,096 INFO L225 Difference]: With dead ends: 24 [2023-12-02 17:41:14,096 INFO L226 Difference]: Without dead ends: 21 [2023-12-02 17:41:14,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 32 SyntacticMatches, 17 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2023-12-02 17:41:14,097 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:41:14,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 8 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:41:14,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-12-02 17:41:14,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-12-02 17:41:14,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 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 17:41:14,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2023-12-02 17:41:14,107 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 19 [2023-12-02 17:41:14,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:41:14,108 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2023-12-02 17:41:14,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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 17:41:14,108 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2023-12-02 17:41:14,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 17:41:14,109 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:41:14,109 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:41:14,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 17:41:14,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:41:14,310 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:41:14,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:41:14,310 INFO L85 PathProgramCache]: Analyzing trace with hash -345325902, now seen corresponding path program 7 times [2023-12-02 17:41:14,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:41:14,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927298238] [2023-12-02 17:41:14,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:41:14,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:41:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:41:16,237 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:41:16,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:41:16,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927298238] [2023-12-02 17:41:16,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927298238] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:41:16,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961281371] [2023-12-02 17:41:16,238 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 17:41:16,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:41:16,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:41:16,239 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:41:16,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 17:41:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:41:16,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 73 conjunts are in the unsatisfiable core [2023-12-02 17:41:16,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:41:16,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 17:41:16,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:16,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2023-12-02 17:41:16,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:16,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 17:41:16,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:16,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-12-02 17:41:16,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:16,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2023-12-02 17:41:16,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:16,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:16,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41 [2023-12-02 17:41:16,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:16,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:16,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 51 [2023-12-02 17:41:16,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:16,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:16,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 61 [2023-12-02 17:41:17,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:17,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:17,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 71 [2023-12-02 17:41:17,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:17,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:17,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 73 [2023-12-02 17:41:17,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:17,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:17,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 75 [2023-12-02 17:41:17,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:17,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:17,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 79 [2023-12-02 17:41:17,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:17,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:17,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 81 [2023-12-02 17:41:17,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:17,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:17,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 83 [2023-12-02 17:41:18,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:18,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:18,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 37 [2023-12-02 17:41:18,172 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:41:18,172 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:41:29,876 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:41:29,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961281371] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:41:29,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [250890790] [2023-12-02 17:41:29,877 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2023-12-02 17:41:29,878 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:41:29,878 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:41:29,878 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:41:29,878 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:41:30,401 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:41:31,362 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1507#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* 2 ~N~0) 1) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 0) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|))' at error location [2023-12-02 17:41:31,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:41:31,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:41:31,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 51 [2023-12-02 17:41:31,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035793666] [2023-12-02 17:41:31,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:41:31,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-12-02 17:41:31,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:41:31,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-12-02 17:41:31,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=2905, Unknown=0, NotChecked=0, Total=3192 [2023-12-02 17:41:31,366 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 51 states, 51 states have (on average 1.0588235294117647) internal successors, (54), 51 states have internal predecessors, (54), 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 17:41:40,848 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, 1] [2023-12-02 17:41:43,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:41:47,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:41:49,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:41:49,837 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2023-12-02 17:41:49,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-02 17:41:49,837 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 1.0588235294117647) internal successors, (54), 51 states have internal predecessors, (54), 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 20 [2023-12-02 17:41:49,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:41:49,838 INFO L225 Difference]: With dead ends: 29 [2023-12-02 17:41:49,838 INFO L226 Difference]: Without dead ends: 26 [2023-12-02 17:41:49,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1462 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=506, Invalid=4750, Unknown=0, NotChecked=0, Total=5256 [2023-12-02 17:41:49,841 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 27 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:41:49,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 45 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 477 Invalid, 3 Unknown, 0 Unchecked, 11.3s Time] [2023-12-02 17:41:49,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-12-02 17:41:49,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2023-12-02 17:41:49,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 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 17:41:49,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2023-12-02 17:41:49,853 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 20 [2023-12-02 17:41:49,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:41:49,853 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2023-12-02 17:41:49,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 1.0588235294117647) internal successors, (54), 51 states have internal predecessors, (54), 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 17:41:49,853 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2023-12-02 17:41:49,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 17:41:49,854 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:41:49,854 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:41:49,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 17:41:50,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:41:50,054 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:41:50,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:41:50,055 INFO L85 PathProgramCache]: Analyzing trace with hash -2115503746, now seen corresponding path program 8 times [2023-12-02 17:41:50,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:41:50,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141594737] [2023-12-02 17:41:50,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:41:50,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:41:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:41:50,195 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 17:41:50,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:41:50,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141594737] [2023-12-02 17:41:50,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141594737] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:41:50,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128387437] [2023-12-02 17:41:50,196 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:41:50,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:41:50,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:41:50,197 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:41:50,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 17:41:50,308 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-02 17:41:50,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:41:50,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 17:41:50,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:41:50,387 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 17:41:50,387 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:41:50,449 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 17:41:50,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128387437] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:41:50,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [207725069] [2023-12-02 17:41:50,451 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2023-12-02 17:41:50,452 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:41:50,452 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:41:50,452 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:41:50,452 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:41:50,818 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:41:50,991 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1773#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* 2 ~N~0) 1) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 0) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|))' at error location [2023-12-02 17:41:50,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:41:50,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:41:50,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2023-12-02 17:41:50,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719984618] [2023-12-02 17:41:50,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:41:50,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-02 17:41:50,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:41:50,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-02 17:41:50,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2023-12-02 17:41:50,993 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 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 17:41:51,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:41:51,142 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2023-12-02 17:41:51,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 17:41:51,143 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 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 21 [2023-12-02 17:41:51,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:41:51,143 INFO L225 Difference]: With dead ends: 54 [2023-12-02 17:41:51,143 INFO L226 Difference]: Without dead ends: 28 [2023-12-02 17:41:51,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 45 SyntacticMatches, 7 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2023-12-02 17:41:51,145 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 17 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:41:51,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 14 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:41:51,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-12-02 17:41:51,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2023-12-02 17:41:51,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 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 17:41:51,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2023-12-02 17:41:51,160 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 21 [2023-12-02 17:41:51,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:41:51,160 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2023-12-02 17:41:51,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 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 17:41:51,160 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-12-02 17:41:51,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 17:41:51,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:41:51,161 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:41:51,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-02 17:41:51,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-02 17:41:51,361 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:41:51,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:41:51,362 INFO L85 PathProgramCache]: Analyzing trace with hash 71574126, now seen corresponding path program 9 times [2023-12-02 17:41:51,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:41:51,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758875625] [2023-12-02 17:41:51,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:41:51,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:41:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:41:51,491 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:41:51,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:41:51,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758875625] [2023-12-02 17:41:51,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758875625] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:41:51,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382756205] [2023-12-02 17:41:51,492 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 17:41:51,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:41:51,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:41:51,493 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:41:51,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 17:41:51,603 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 17:41:51,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:41:51,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 17:41:51,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:41:51,686 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:41:51,686 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:41:51,761 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:41:51,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382756205] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:41:51,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1033486194] [2023-12-02 17:41:51,763 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2023-12-02 17:41:51,763 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:41:51,763 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:41:51,763 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:41:51,764 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:41:51,984 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:41:52,215 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2075#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* 2 ~N~0) 1) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 0) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|))' at error location [2023-12-02 17:41:52,216 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:41:52,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:41:52,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2023-12-02 17:41:52,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113150077] [2023-12-02 17:41:52,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:41:52,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-02 17:41:52,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:41:52,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-02 17:41:52,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2023-12-02 17:41:52,217 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 17 states have internal predecessors, (31), 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 17:41:52,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:41:52,356 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2023-12-02 17:41:52,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 17:41:52,360 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 17 states have internal predecessors, (31), 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 23 [2023-12-02 17:41:52,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:41:52,360 INFO L225 Difference]: With dead ends: 28 [2023-12-02 17:41:52,360 INFO L226 Difference]: Without dead ends: 25 [2023-12-02 17:41:52,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 38 SyntacticMatches, 22 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2023-12-02 17:41:52,362 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:41:52,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:41:52,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-12-02 17:41:52,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-12-02 17:41:52,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 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 17:41:52,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2023-12-02 17:41:52,377 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 23 [2023-12-02 17:41:52,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:41:52,378 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2023-12-02 17:41:52,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 17 states have internal predecessors, (31), 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 17:41:52,378 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2023-12-02 17:41:52,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 17:41:52,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:41:52,379 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:41:52,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-02 17:41:52,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:41:52,579 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:41:52,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:41:52,580 INFO L85 PathProgramCache]: Analyzing trace with hash -2076504766, now seen corresponding path program 10 times [2023-12-02 17:41:52,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:41:52,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218770715] [2023-12-02 17:41:52,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:41:52,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:41:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:41:55,290 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:41:55,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:41:55,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218770715] [2023-12-02 17:41:55,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218770715] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:41:55,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193154946] [2023-12-02 17:41:55,291 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 17:41:55,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:41:55,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:41:55,292 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:41:55,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 17:41:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:41:55,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 94 conjunts are in the unsatisfiable core [2023-12-02 17:41:55,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:41:55,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2023-12-02 17:41:55,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 17:41:55,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:55,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 17:41:55,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:55,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-12-02 17:41:55,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:55,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2023-12-02 17:41:55,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:55,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41 [2023-12-02 17:41:55,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:55,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 51 [2023-12-02 17:41:55,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:55,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 61 [2023-12-02 17:41:56,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:56,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 71 [2023-12-02 17:41:56,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:56,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 9 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 81 [2023-12-02 17:41:56,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:56,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 91 [2023-12-02 17:41:56,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:56,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 93 [2023-12-02 17:41:56,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:56,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 97 [2023-12-02 17:41:56,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:56,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 99 [2023-12-02 17:41:57,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:57,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 101 [2023-12-02 17:41:57,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:57,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 103 [2023-12-02 17:41:57,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:57,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 105 [2023-12-02 17:41:57,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:57,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 100 [2023-12-02 17:41:58,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:41:58,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 47 [2023-12-02 17:41:58,182 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:41:58,182 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:42:55,722 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:42:55,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193154946] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:42:55,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1107216717] [2023-12-02 17:42:55,723 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2023-12-02 17:42:55,724 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:42:55,724 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:42:55,724 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:42:55,724 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:42:55,960 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:42:58,499 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2384#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* 2 ~N~0) 1) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 0) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|))' at error location [2023-12-02 17:42:58,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:42:58,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:42:58,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 63 [2023-12-02 17:42:58,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502463837] [2023-12-02 17:42:58,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:42:58,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2023-12-02 17:42:58,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:42:58,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2023-12-02 17:42:58,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=396, Invalid=4155, Unknown=5, NotChecked=0, Total=4556 [2023-12-02 17:42:58,502 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 63 states, 63 states have (on average 1.0476190476190477) internal successors, (66), 63 states have internal predecessors, (66), 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 17:43:02,475 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse21 (* |c_ULTIMATE.start_main_~i~0#1| 4)) (.cse17 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse23 (select .cse17 0)) (.cse37 (select .cse17 4)) (.cse24 (select .cse17 12)) (.cse13 (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse14 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse15 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse12 (+ 4 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse11 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse10 (+ 12 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse18 (+ .cse21 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse19 (+ .cse21 |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse20 (+ .cse21 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse22 (* 2 |c_ULTIMATE.start_main_~i~0#1|)) (.cse36 (select .cse17 8))) (and (forall ((v_ArrVal_631 Int) (v_ArrVal_642 Int) (v_ArrVal_640 Int) (v_ArrVal_629 Int) (v_ArrVal_627 Int) (v_ArrVal_638 Int) (v_ArrVal_636 Int) (v_ArrVal_633 Int)) (or (< 1 v_ArrVal_629) (< (let ((.cse8 (let ((.cse16 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse17 .cse18 v_ArrVal_627) .cse19 v_ArrVal_629) .cse20 v_ArrVal_631) (+ .cse21 12 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_633)))) (store .cse16 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (select .cse16 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_636) .cse12 v_ArrVal_638) .cse11 v_ArrVal_640) .cse10 v_ArrVal_642))))) (let ((.cse9 (select .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse3 (select (select .cse8 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (select .cse9 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse2 (select (select (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse5))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse6 (select (select (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3 .cse5))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse14))) (let ((.cse1 (select (select (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3 .cse5 .cse6))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13))) (let ((.cse7 (select (select (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse5 .cse6))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse4 (select (select (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse5 .cse6 .cse7))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12))) (let ((.cse0 (select (select (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse11))) (+ .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (select (select (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse10))))))))))) (+ .cse22 9)) (< 1 v_ArrVal_642) (< 1 v_ArrVal_627) (< 1 v_ArrVal_633) (< 1 v_ArrVal_640) (< 1 v_ArrVal_631) (< 1 v_ArrVal_636) (< 1 v_ArrVal_638))) (= .cse23 1) (<= .cse24 1) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 0) (<= .cse23 1) (forall ((v_ArrVal_631 Int) (v_ArrVal_642 Int) (v_ArrVal_640 Int) (v_ArrVal_638 Int) (v_ArrVal_636 Int) (v_ArrVal_633 Int)) (or (< 1 v_ArrVal_642) (< 1 v_ArrVal_633) (< 1 v_ArrVal_640) (< 1 v_ArrVal_631) (< 1 v_ArrVal_636) (< 1 v_ArrVal_638) (< (let ((.cse30 (let ((.cse35 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse17 .cse18 v_ArrVal_631) .cse19 v_ArrVal_633)))) (store .cse35 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (select .cse35 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_636) .cse12 v_ArrVal_638) .cse11 v_ArrVal_640) .cse10 v_ArrVal_642))))) (let ((.cse31 (select .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse25 (select (select .cse30 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse27 (select .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse34 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse25 .cse27))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse26 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse25 .cse27 .cse34))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse14))) (let ((.cse33 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse25 .cse26 .cse27 .cse34))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13))) (let ((.cse29 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse25 .cse26 .cse27 .cse33 .cse34))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse32 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse25 .cse26 .cse27 .cse29 .cse33 .cse34))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12))) (let ((.cse28 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse25 .cse26 .cse27 .cse29 .cse32 .cse33 .cse34))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse11))) (+ .cse25 .cse26 .cse27 .cse28 .cse29 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse25 .cse26 .cse27 .cse28 .cse29 .cse32 .cse33 .cse34))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse10) .cse32 .cse33 .cse34)))))))))) (+ .cse22 5)))) (= .cse36 1) (<= (+ 2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.base|) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= .cse37 1) (<= .cse37 1) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= .cse24 1) (forall ((v_ArrVal_642 Int) (v_ArrVal_640 Int) (v_ArrVal_638 Int) (v_ArrVal_636 Int) (v_ArrVal_633 Int)) (or (< (let ((.cse44 (let ((.cse48 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse17 .cse18 v_ArrVal_633)))) (store .cse48 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (select .cse48 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_636) .cse12 v_ArrVal_638) .cse11 v_ArrVal_640) .cse10 v_ArrVal_642))))) (let ((.cse45 (select .cse44 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse42 (select (select .cse44 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse46 (select .cse45 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse38 (select (select (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse45 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse42 .cse46))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse43 (select (select (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse45 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse38 .cse42 .cse46))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse14))) (let ((.cse47 (select (select (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse45 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse38 .cse42 .cse43 .cse46))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13))) (let ((.cse40 (select (select (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse45 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse38 .cse42 .cse43 .cse46 .cse47))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse41 (select (select (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse45 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse38 .cse40 .cse42 .cse43 .cse46 .cse47))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12))) (let ((.cse39 (select (select (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse45 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse38 .cse40 .cse41 .cse42 .cse43 .cse46 .cse47))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse11))) (+ .cse38 .cse39 .cse40 .cse41 .cse42 .cse43 (select (select (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse45 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse38 .cse39 .cse40 .cse41 .cse42 .cse43 .cse46 .cse47))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse10) .cse46 .cse47)))))))))) (+ .cse22 3)) (< 1 v_ArrVal_642) (< 1 v_ArrVal_633) (< 1 v_ArrVal_640) (< 1 v_ArrVal_636) (< 1 v_ArrVal_638))) (forall ((v_ArrVal_631 Int) (v_ArrVal_642 Int) (v_ArrVal_640 Int) (v_ArrVal_629 Int) (v_ArrVal_638 Int) (v_ArrVal_636 Int) (v_ArrVal_633 Int)) (or (< 1 v_ArrVal_629) (< 1 v_ArrVal_642) (< 1 v_ArrVal_633) (< 1 v_ArrVal_640) (< (let ((.cse50 (let ((.cse59 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse17 .cse18 v_ArrVal_629) .cse19 v_ArrVal_631) .cse20 v_ArrVal_633)))) (store .cse59 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (select .cse59 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_636) .cse12 v_ArrVal_638) .cse11 v_ArrVal_640) .cse10 v_ArrVal_642))))) (let ((.cse51 (select .cse50 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse56 (select (select .cse50 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse57 (select .cse51 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse52 (select (select (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse56 .cse57))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse49 (select (select (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse56 .cse57))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse14))) (let ((.cse55 (select (select (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse49 .cse52 .cse56 .cse57))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13))) (let ((.cse54 (select (select (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse49 .cse52 .cse55 .cse56 .cse57))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse58 (select (select (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse49 .cse52 .cse54 .cse55 .cse56 .cse57))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12))) (let ((.cse53 (select (select (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse49 .cse52 .cse54 .cse55 .cse56 .cse57 .cse58))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse11))) (+ .cse49 (select (select (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse49 .cse52 .cse53 .cse54 .cse55 .cse56 .cse57 .cse58))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse10) .cse52 .cse53 .cse54 .cse55 .cse56 .cse57 .cse58)))))))))) (+ .cse22 7)) (< 1 v_ArrVal_631) (< 1 v_ArrVal_636) (< 1 v_ArrVal_638))) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~#sum~0#1.base|)) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (<= 4 c_~N~0) (<= .cse36 1)))) is different from true [2023-12-02 17:43:43,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:43:47,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:43:48,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:43:49,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:43:52,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:43:55,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:43:57,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:44:00,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:44:15,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:44:18,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:44:21,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:44:23,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:44:25,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:44:27,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:44:31,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:44:33,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:44:35,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:44:37,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:45:08,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:45:10,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:45:11,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:45:13,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:45:15,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:45:30,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:45:31,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:45:32,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:45:34,728 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse17 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse77 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse49 (select .cse77 12)) (.cse48 (select .cse77 0)) (.cse26 (select .cse77 8)) (.cse41 (select .cse77 4)) (.cse24 (select .cse17 12)) (.cse50 (select .cse17 4)) (.cse76 (select .cse17 8)) (.cse44 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse27 (select .cse17 0)) (.cse21 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse13 (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse14 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse15 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse12 (+ 4 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse11 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse10 (+ 12 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse18 (+ .cse21 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse19 (+ .cse21 |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse20 (+ .cse21 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse22 (* 2 |c_ULTIMATE.start_main_~i~0#1|)) (.cse47 (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0)) (.cse23 (= .cse27 1)) (.cse25 (= .cse44 0)) (.cse39 (= .cse76 1)) (.cse40 (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|))) (.cse42 (= .cse50 1)) (.cse51 (= .cse24 1)) (.cse63 (= .cse41 1)) (.cse43 (= .cse26 1)) (.cse45 (= .cse48 1)) (.cse46 (= .cse49 1)) (.cse75 (<= 4 c_~N~0))) (and (forall ((v_ArrVal_631 Int) (v_ArrVal_642 Int) (v_ArrVal_640 Int) (v_ArrVal_629 Int) (v_ArrVal_627 Int) (v_ArrVal_638 Int) (v_ArrVal_636 Int) (v_ArrVal_633 Int)) (or (< 1 v_ArrVal_629) (< (let ((.cse8 (let ((.cse16 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse17 .cse18 v_ArrVal_627) .cse19 v_ArrVal_629) .cse20 v_ArrVal_631) (+ .cse21 12 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_633)))) (store .cse16 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (select .cse16 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_636) .cse12 v_ArrVal_638) .cse11 v_ArrVal_640) .cse10 v_ArrVal_642))))) (let ((.cse9 (select .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse3 (select (select .cse8 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (select .cse9 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse2 (select (select (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse5))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse6 (select (select (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3 .cse5))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse14))) (let ((.cse1 (select (select (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3 .cse5 .cse6))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13))) (let ((.cse7 (select (select (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse5 .cse6))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse4 (select (select (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse5 .cse6 .cse7))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12))) (let ((.cse0 (select (select (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse11))) (+ .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (select (select (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse10))))))))))) (+ .cse22 9)) (< 1 v_ArrVal_642) (< 1 v_ArrVal_627) (< 1 v_ArrVal_633) (< 1 v_ArrVal_640) (< 1 v_ArrVal_631) (< 1 v_ArrVal_636) (< 1 v_ArrVal_638))) .cse23 (<= .cse24 1) .cse25 (<= .cse26 1) (<= .cse27 1) (forall ((v_ArrVal_631 Int) (v_ArrVal_642 Int) (v_ArrVal_640 Int) (v_ArrVal_638 Int) (v_ArrVal_636 Int) (v_ArrVal_633 Int)) (or (< 1 v_ArrVal_642) (< 1 v_ArrVal_633) (< 1 v_ArrVal_640) (< 1 v_ArrVal_631) (< 1 v_ArrVal_636) (< 1 v_ArrVal_638) (< (let ((.cse33 (let ((.cse38 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse17 .cse18 v_ArrVal_631) .cse19 v_ArrVal_633)))) (store .cse38 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (select .cse38 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_636) .cse12 v_ArrVal_638) .cse11 v_ArrVal_640) .cse10 v_ArrVal_642))))) (let ((.cse34 (select .cse33 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse28 (select (select .cse33 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse30 (select .cse34 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse37 (select (select (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse28 .cse30))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse29 (select (select (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse28 .cse30 .cse37))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse14))) (let ((.cse36 (select (select (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse28 .cse29 .cse30 .cse37))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13))) (let ((.cse32 (select (select (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse28 .cse29 .cse30 .cse36 .cse37))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse35 (select (select (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse28 .cse29 .cse30 .cse32 .cse36 .cse37))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12))) (let ((.cse31 (select (select (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse28 .cse29 .cse30 .cse32 .cse35 .cse36 .cse37))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse11))) (+ .cse28 .cse29 .cse30 .cse31 .cse32 (select (select (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse28 .cse29 .cse30 .cse31 .cse32 .cse35 .cse36 .cse37))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse10) .cse35 .cse36 .cse37)))))))))) (+ .cse22 5)))) .cse39 (<= (+ 2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.base|) .cse40 (<= .cse41 1) .cse42 (or (and .cse43 (<= (+ .cse44 4) (* c_~N~0 2)) .cse45 .cse46) .cse47) (<= .cse48 1) (<= .cse49 1) (<= .cse50 1) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) .cse51 (forall ((v_ArrVal_642 Int) (v_ArrVal_640 Int) (v_ArrVal_638 Int) (v_ArrVal_636 Int) (v_ArrVal_633 Int)) (or (< (let ((.cse58 (let ((.cse62 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse17 .cse18 v_ArrVal_633)))) (store .cse62 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (select .cse62 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_636) .cse12 v_ArrVal_638) .cse11 v_ArrVal_640) .cse10 v_ArrVal_642))))) (let ((.cse59 (select .cse58 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse56 (select (select .cse58 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse60 (select .cse59 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse52 (select (select (store .cse58 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse56 .cse60))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse57 (select (select (store .cse58 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse56 .cse60))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse14))) (let ((.cse61 (select (select (store .cse58 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse56 .cse57 .cse60))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13))) (let ((.cse54 (select (select (store .cse58 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse56 .cse57 .cse60 .cse61))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse55 (select (select (store .cse58 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse54 .cse56 .cse57 .cse60 .cse61))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12))) (let ((.cse53 (select (select (store .cse58 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse54 .cse55 .cse56 .cse57 .cse60 .cse61))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse11))) (+ .cse52 .cse53 .cse54 .cse55 .cse56 .cse57 (select (select (store .cse58 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse53 .cse54 .cse55 .cse56 .cse57 .cse60 .cse61))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse10) .cse60 .cse61)))))))))) (+ .cse22 3)) (< 1 v_ArrVal_642) (< 1 v_ArrVal_633) (< 1 v_ArrVal_640) (< 1 v_ArrVal_636) (< 1 v_ArrVal_638))) .cse63 (forall ((v_ArrVal_631 Int) (v_ArrVal_642 Int) (v_ArrVal_640 Int) (v_ArrVal_629 Int) (v_ArrVal_638 Int) (v_ArrVal_636 Int) (v_ArrVal_633 Int)) (or (< 1 v_ArrVal_629) (< 1 v_ArrVal_642) (< 1 v_ArrVal_633) (< 1 v_ArrVal_640) (< (let ((.cse65 (let ((.cse74 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse17 .cse18 v_ArrVal_629) .cse19 v_ArrVal_631) .cse20 v_ArrVal_633)))) (store .cse74 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (select .cse74 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_636) .cse12 v_ArrVal_638) .cse11 v_ArrVal_640) .cse10 v_ArrVal_642))))) (let ((.cse66 (select .cse65 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse71 (select (select .cse65 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse72 (select .cse66 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse67 (select (select (store .cse65 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse66 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse71 .cse72))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse64 (select (select (store .cse65 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse66 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse67 .cse71 .cse72))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse14))) (let ((.cse70 (select (select (store .cse65 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse66 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse64 .cse67 .cse71 .cse72))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13))) (let ((.cse69 (select (select (store .cse65 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse66 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse64 .cse67 .cse70 .cse71 .cse72))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse73 (select (select (store .cse65 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse66 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse64 .cse67 .cse69 .cse70 .cse71 .cse72))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12))) (let ((.cse68 (select (select (store .cse65 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse66 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse64 .cse67 .cse69 .cse70 .cse71 .cse72 .cse73))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse11))) (+ .cse64 (select (select (store .cse65 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse66 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse64 .cse67 .cse68 .cse69 .cse70 .cse71 .cse72 .cse73))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse10) .cse67 .cse68 .cse69 .cse70 .cse71 .cse72 .cse73)))))))))) (+ .cse22 7)) (< 1 v_ArrVal_631) (< 1 v_ArrVal_636) (< 1 v_ArrVal_638))) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~#sum~0#1.base|)) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) .cse75 (or .cse47 (and .cse23 .cse25 .cse39 .cse40 .cse42 .cse51 .cse63 .cse43 .cse45 .cse46 .cse75)) (<= .cse76 1))))) is different from true [2023-12-02 17:45:37,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:45:57,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:45:59,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:46:03,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:46:05,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:46:08,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:46:10,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:46:12,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:46:14,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:46:16,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:46:18,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:46:20,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:46:22,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:46:24,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:46:38,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:46:54,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:46:56,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:46:58,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:47:01,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:47:13,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:47:15,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:47:38,150 WARN L293 SmtUtils]: Spent 6.24s on a formula simplification. DAG size of input: 252 DAG size of output: 247 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:47:40,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:47:42,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:47:43,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:47:46,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:47:48,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:47:53,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:47:55,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:47:58,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:48:02,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:48:04,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:48:06,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:48:16,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:48:16,839 INFO L93 Difference]: Finished difference Result 67 states and 83 transitions. [2023-12-02 17:48:16,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-12-02 17:48:16,840 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 1.0476190476190477) internal successors, (66), 63 states have internal predecessors, (66), 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 24 [2023-12-02 17:48:16,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:48:16,841 INFO L225 Difference]: With dead ends: 67 [2023-12-02 17:48:16,841 INFO L226 Difference]: Without dead ends: 63 [2023-12-02 17:48:16,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 96 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 2536 ImplicationChecksByTransitivity, 217.6s TimeCoverageRelationStatistics Valid=765, Invalid=8336, Unknown=27, NotChecked=378, Total=9506 [2023-12-02 17:48:16,845 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 30 mSolverCounterUnsat, 39 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 157.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 39 IncrementalHoareTripleChecker+Unknown, 234 IncrementalHoareTripleChecker+Unchecked, 158.7s IncrementalHoareTripleChecker+Time [2023-12-02 17:48:16,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 62 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 892 Invalid, 39 Unknown, 234 Unchecked, 158.7s Time] [2023-12-02 17:48:16,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-12-02 17:48:16,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 49. [2023-12-02 17:48:16,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.3125) internal successors, (63), 48 states have internal predecessors, (63), 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 17:48:16,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2023-12-02 17:48:16,897 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 63 transitions. Word has length 24 [2023-12-02 17:48:16,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:48:16,897 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 63 transitions. [2023-12-02 17:48:16,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 1.0476190476190477) internal successors, (66), 63 states have internal predecessors, (66), 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 17:48:16,897 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions. [2023-12-02 17:48:16,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 17:48:16,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:48:16,898 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:48:16,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-02 17:48:17,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:48:17,099 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:48:17,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:48:17,099 INFO L85 PathProgramCache]: Analyzing trace with hash 52526318, now seen corresponding path program 11 times [2023-12-02 17:48:17,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:48:17,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175012007] [2023-12-02 17:48:17,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:48:17,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:48:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:48:17,419 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:48:17,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:48:17,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175012007] [2023-12-02 17:48:17,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175012007] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:48:17,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046101420] [2023-12-02 17:48:17,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:48:17,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:48:17,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:48:17,421 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:48:17,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 17:48:17,685 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-12-02 17:48:17,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:48:17,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 17:48:17,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:48:18,031 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:48:18,032 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:48:18,284 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:48:18,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046101420] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:48:18,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [144456677] [2023-12-02 17:48:18,286 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2023-12-02 17:48:18,286 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:48:18,286 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:48:18,286 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:48:18,287 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:48:18,822 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:48:19,309 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2831#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* 2 ~N~0) 1) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 0) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|))' at error location [2023-12-02 17:48:19,309 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:48:19,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:48:19,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 20 [2023-12-02 17:48:19,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595208588] [2023-12-02 17:48:19,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:48:19,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-02 17:48:19,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:48:19,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-02 17:48:19,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600 [2023-12-02 17:48:19,311 INFO L87 Difference]: Start difference. First operand 49 states and 63 transitions. Second operand has 20 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 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 17:48:19,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:48:19,858 INFO L93 Difference]: Finished difference Result 93 states and 114 transitions. [2023-12-02 17:48:19,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 17:48:19,858 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 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 25 [2023-12-02 17:48:19,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:48:19,859 INFO L225 Difference]: With dead ends: 93 [2023-12-02 17:48:19,859 INFO L226 Difference]: Without dead ends: 54 [2023-12-02 17:48:19,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 54 SyntacticMatches, 9 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=196, Invalid=674, Unknown=0, NotChecked=0, Total=870 [2023-12-02 17:48:19,860 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 31 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:48:19,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 20 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 17:48:19,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-12-02 17:48:19,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 47. [2023-12-02 17:48:19,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.2173913043478262) internal successors, (56), 46 states have internal predecessors, (56), 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 17:48:19,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2023-12-02 17:48:19,899 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 25 [2023-12-02 17:48:19,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:48:19,900 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2023-12-02 17:48:19,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 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 17:48:19,900 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2023-12-02 17:48:19,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 17:48:19,901 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:48:19,901 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:48:19,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-02 17:48:20,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-02 17:48:20,101 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:48:20,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:48:20,102 INFO L85 PathProgramCache]: Analyzing trace with hash 92967991, now seen corresponding path program 12 times [2023-12-02 17:48:20,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:48:20,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616501031] [2023-12-02 17:48:20,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:48:20,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:48:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:48:20,477 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-02 17:48:20,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:48:20,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616501031] [2023-12-02 17:48:20,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616501031] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:48:20,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44002211] [2023-12-02 17:48:20,478 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 17:48:20,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:48:20,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:48:20,479 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:48:20,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 17:48:20,575 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 17:48:20,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:48:20,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 17:48:20,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:48:20,851 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-02 17:48:20,851 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:48:21,106 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-02 17:48:21,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44002211] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:48:21,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [602036134] [2023-12-02 17:48:21,108 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2023-12-02 17:48:21,109 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:48:21,109 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:48:21,109 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:48:21,109 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:48:21,379 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:48:22,088 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3277#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* 2 ~N~0) 1) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 0) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|))' at error location [2023-12-02 17:48:22,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:48:22,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:48:22,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 20 [2023-12-02 17:48:22,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115559897] [2023-12-02 17:48:22,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:48:22,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-02 17:48:22,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:48:22,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-02 17:48:22,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2023-12-02 17:48:22,091 INFO L87 Difference]: Start difference. First operand 47 states and 56 transitions. Second operand has 20 states, 20 states have (on average 1.75) internal successors, (35), 20 states have internal predecessors, (35), 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 17:48:22,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:48:22,608 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2023-12-02 17:48:22,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 17:48:22,609 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.75) internal successors, (35), 20 states have internal predecessors, (35), 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 26 [2023-12-02 17:48:22,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:48:22,609 INFO L225 Difference]: With dead ends: 51 [2023-12-02 17:48:22,610 INFO L226 Difference]: Without dead ends: 38 [2023-12-02 17:48:22,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 42 SyntacticMatches, 26 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 655 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=174, Invalid=696, Unknown=0, NotChecked=0, Total=870 [2023-12-02 17:48:22,611 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 17 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:48:22,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 10 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 17:48:22,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-12-02 17:48:22,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2023-12-02 17:48:22,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 28 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 17:48:22,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2023-12-02 17:48:22,635 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 26 [2023-12-02 17:48:22,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:48:22,635 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2023-12-02 17:48:22,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.75) internal successors, (35), 20 states have internal predecessors, (35), 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 17:48:22,635 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2023-12-02 17:48:22,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 17:48:22,636 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:48:22,636 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:48:22,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-02 17:48:22,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-02 17:48:22,836 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:48:22,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:48:22,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1850624974, now seen corresponding path program 13 times [2023-12-02 17:48:22,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:48:22,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514619157] [2023-12-02 17:48:22,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:48:22,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:48:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:48:28,972 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:48:28,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:48:28,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514619157] [2023-12-02 17:48:28,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514619157] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:48:28,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414841935] [2023-12-02 17:48:28,972 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 17:48:28,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:48:28,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:48:28,973 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:48:28,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8c0ce8-e137-45d2-a909-03136e4fd0d9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-02 17:48:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:48:29,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 112 conjunts are in the unsatisfiable core [2023-12-02 17:48:29,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:48:29,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 17:48:29,103 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-02 17:48:29,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2023-12-02 17:48:29,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 17:48:29,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-12-02 17:48:29,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2023-12-02 17:48:29,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41 [2023-12-02 17:48:29,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 51 [2023-12-02 17:48:30,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 61 [2023-12-02 17:48:30,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 71 [2023-12-02 17:48:30,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 13 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 81 [2023-12-02 17:48:31,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 13 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 91 [2023-12-02 17:48:31,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 13 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 101 [2023-12-02 17:48:32,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 13 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 111 [2023-12-02 17:48:32,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 13 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 113 [2023-12-02 17:48:32,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 13 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 117 [2023-12-02 17:48:33,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 13 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 119 [2023-12-02 17:48:33,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 13 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 121 [2023-12-02 17:48:34,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 13 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 123 [2023-12-02 17:48:34,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 13 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 119 [2023-12-02 17:48:35,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 13 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 127 [2023-12-02 17:48:35,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 13 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 175 treesize of output 129 [2023-12-02 17:48:35,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 13 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 131 [2023-12-02 17:48:36,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 13 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 181 treesize of output 57 [2023-12-02 17:48:36,530 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:48:36,530 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:51:41,768 WARN L293 SmtUtils]: Spent 5.16s on a formula simplification that was a NOOP. DAG size: 118 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:51:41,806 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 52 refuted. 8 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:51:41,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414841935] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:51:41,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1907968762] [2023-12-02 17:51:41,808 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2023-12-02 17:51:41,808 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:51:41,808 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:51:41,808 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:51:41,808 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:51:42,073 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:51:50,908 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3677#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ (* 2 ~N~0) 1) |ULTIMATE.start_main_#t~mem15#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 0) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|))' at error location [2023-12-02 17:51:50,908 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:51:50,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:51:50,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 74 [2023-12-02 17:51:50,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502833988] [2023-12-02 17:51:50,909 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:51:50,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2023-12-02 17:51:50,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:51:50,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2023-12-02 17:51:50,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=490, Invalid=5814, Unknown=16, NotChecked=0, Total=6320 [2023-12-02 17:51:50,912 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 74 states, 74 states have (on average 1.0405405405405406) internal successors, (77), 74 states have internal predecessors, (77), 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 17:52:00,238 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse58 (* |c_ULTIMATE.start_main_~i~0#1| 4)) (.cse24 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse2 (select .cse24 0)) (.cse1 (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 0)) (.cse0 (select .cse24 12)) (.cse42 (+ .cse58 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse44 (select .cse24 4)) (.cse19 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse20 (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse21 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse22 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse18 (+ 4 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse17 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse16 (+ 12 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse15 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse25 (+ .cse58 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse40 (+ .cse58 |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse41 (+ .cse58 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse26 (* 2 |c_ULTIMATE.start_main_~i~0#1|)) (.cse43 (select .cse24 8))) (and (<= 5 c_~N~0) (<= .cse0 1) .cse1 (<= .cse2 1) (forall ((v_ArrVal_938 Int) (v_ArrVal_936 Int) (v_ArrVal_934 Int) (v_ArrVal_933 Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (or (< 1 v_ArrVal_931) (< 1 v_ArrVal_934) (< 1 v_ArrVal_938) (< (let ((.cse7 (let ((.cse23 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse24 .cse25 v_ArrVal_931)))) (store .cse23 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (store (select .cse23 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_933) .cse18 v_ArrVal_934) .cse17 v_ArrVal_936) .cse16 v_ArrVal_938) .cse15 v_ArrVal_941))))) (let ((.cse8 (select .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse6 (select .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse12 (select (select .cse7 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse13 (select (select (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse6 .cse12))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse22))) (let ((.cse4 (select (select (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse6 .cse12 .cse13))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse21))) (let ((.cse9 (select (select (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse4 .cse6 .cse12 .cse13))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse20))) (let ((.cse14 (select (select (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse4 .cse6 .cse9 .cse12 .cse13))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse19))) (let ((.cse5 (select (select (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse4 .cse6 .cse9 .cse12 .cse13 .cse14))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse11 (select (select (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse4 .cse5 .cse6 .cse9 .cse12 .cse13 .cse14))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse18))) (let ((.cse3 (select (select (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse4 .cse5 .cse6 .cse9 .cse11 .cse12 .cse13 .cse14))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse17))) (let ((.cse10 (select (select (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse4 .cse5 .cse6 .cse9 .cse11 .cse12 .cse13 .cse14))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse16))) (+ .cse3 .cse4 .cse5 .cse6 (select (select (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse4 .cse5 .cse6 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14)))))))))))) (+ .cse26 3)) (< 1 v_ArrVal_936) (< 1 v_ArrVal_933) (< 1 v_ArrVal_941))) (forall ((v_ArrVal_928 Int) (v_ArrVal_938 Int) (v_ArrVal_926 Int) (v_ArrVal_936 Int) (v_ArrVal_924 Int) (v_ArrVal_934 Int) (v_ArrVal_933 Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (or (< 1 v_ArrVal_931) (< 1 v_ArrVal_934) (< 1 v_ArrVal_938) (< 1 v_ArrVal_926) (< 1 v_ArrVal_928) (< 1 v_ArrVal_924) (< 1 v_ArrVal_936) (< (let ((.cse27 (let ((.cse39 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse24 .cse25 v_ArrVal_924) .cse40 v_ArrVal_926) .cse41 v_ArrVal_928) .cse42 v_ArrVal_931)))) (store .cse39 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (store (select .cse39 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_933) .cse18 v_ArrVal_934) .cse17 v_ArrVal_936) .cse16 v_ArrVal_938) .cse15 v_ArrVal_941))))) (let ((.cse28 (select .cse27 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse29 (select (select .cse27 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse33 (select .cse28 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse35 (select (select (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse29 .cse33))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse22))) (let ((.cse32 (select (select (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse29 .cse33 .cse35))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse21))) (let ((.cse30 (select (select (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse29 .cse32 .cse33 .cse35))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse20))) (let ((.cse36 (select (select (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse29 .cse30 .cse32 .cse33 .cse35))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse19))) (let ((.cse34 (select (select (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse29 .cse30 .cse32 .cse33 .cse35 .cse36))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse31 (select (select (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse29 .cse30 .cse32 .cse33 .cse34 .cse35 .cse36))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse18))) (let ((.cse38 (select (select (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse29 .cse30 .cse31 .cse32 .cse33 .cse34 .cse35 .cse36))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse17))) (let ((.cse37 (select (select (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse29 .cse30 .cse31 .cse32 .cse33 .cse34 .cse35 .cse36 .cse38))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse16))) (+ (select (select (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse29 .cse30 .cse31 .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse29 .cse30 .cse31 .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38)))))))))))) (+ .cse26 9)) (< 1 v_ArrVal_933) (< 1 v_ArrVal_941))) (or (and (= .cse2 1) .cse1 (= .cse43 1) (= .cse44 1) (= (select .cse24 (+ (* c_~N~0 4) (- 4))) 1) (= .cse0 1)) (< 5 c_~N~0)) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= (select .cse24 16) 1) (forall ((v_ArrVal_928 Int) (v_ArrVal_938 Int) (v_ArrVal_926 Int) (v_ArrVal_936 Int) (v_ArrVal_924 Int) (v_ArrVal_934 Int) (v_ArrVal_922 Int) (v_ArrVal_933 Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (or (< 1 v_ArrVal_931) (< 1 v_ArrVal_934) (< 1 v_ArrVal_938) (< 1 v_ArrVal_926) (< 1 v_ArrVal_922) (< 1 v_ArrVal_928) (< 1 v_ArrVal_924) (< 1 v_ArrVal_936) (< (let ((.cse51 (let ((.cse57 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store (store .cse24 .cse25 v_ArrVal_922) .cse40 v_ArrVal_924) .cse41 v_ArrVal_926) .cse42 v_ArrVal_928) (+ .cse58 16 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_931)))) (store .cse57 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (store (select .cse57 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_933) .cse18 v_ArrVal_934) .cse17 v_ArrVal_936) .cse16 v_ArrVal_938) .cse15 v_ArrVal_941))))) (let ((.cse52 (select .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse45 (select (select .cse51 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse54 (select .cse52 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse46 (select (select (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse52 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse45 .cse54))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse22))) (let ((.cse49 (select (select (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse52 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse45 .cse46 .cse54))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse21))) (let ((.cse56 (select (select (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse52 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse45 .cse46 .cse49 .cse54))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse20))) (let ((.cse53 (select (select (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse52 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse45 .cse46 .cse49 .cse54 .cse56))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse19))) (let ((.cse48 (select (select (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse52 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse45 .cse46 .cse49 .cse53 .cse54 .cse56))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse55 (select (select (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse52 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse45 .cse46 .cse48 .cse49 .cse53 .cse54 .cse56))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse18))) (let ((.cse50 (select (select (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse52 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse45 .cse46 .cse48 .cse49 .cse53 .cse54 .cse55 .cse56))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse17))) (let ((.cse47 (select (select (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse52 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse45 .cse46 .cse48 .cse49 .cse50 .cse53 .cse54 .cse55 .cse56))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse16))) (+ .cse45 .cse46 .cse47 .cse48 .cse49 .cse50 (select (select (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse52 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse45 .cse46 .cse47 .cse48 .cse49 .cse50 .cse53 .cse54 .cse55 .cse56))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse53 .cse54 .cse55 .cse56)))))))))))) (+ .cse26 11)) (< 1 v_ArrVal_933) (< 1 v_ArrVal_941))) (<= .cse44 1) (forall ((v_ArrVal_928 Int) (v_ArrVal_938 Int) (v_ArrVal_936 Int) (v_ArrVal_934 Int) (v_ArrVal_933 Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (or (< 1 v_ArrVal_931) (< 1 v_ArrVal_934) (< 1 v_ArrVal_938) (< 1 v_ArrVal_928) (< 1 v_ArrVal_936) (< (let ((.cse69 (let ((.cse71 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse24 .cse25 v_ArrVal_928) .cse40 v_ArrVal_931)))) (store .cse71 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (store (select .cse71 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_933) .cse18 v_ArrVal_934) .cse17 v_ArrVal_936) .cse16 v_ArrVal_938) .cse15 v_ArrVal_941))))) (let ((.cse70 (select .cse69 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse60 (select (select .cse69 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse66 (select .cse70 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse59 (select (select (store .cse69 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse70 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse60 .cse66))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse22))) (let ((.cse68 (select (select (store .cse69 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse70 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse59 .cse60 .cse66))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse21))) (let ((.cse63 (select (select (store .cse69 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse70 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse59 .cse60 .cse66 .cse68))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse20))) (let ((.cse62 (select (select (store .cse69 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse70 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse59 .cse60 .cse63 .cse66 .cse68))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse19))) (let ((.cse67 (select (select (store .cse69 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse70 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse59 .cse60 .cse62 .cse63 .cse66 .cse68))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse64 (select (select (store .cse69 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse70 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse59 .cse60 .cse62 .cse63 .cse66 .cse67 .cse68))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse18))) (let ((.cse61 (select (select (store .cse69 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse70 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse59 .cse60 .cse62 .cse63 .cse64 .cse66 .cse67 .cse68))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse17))) (let ((.cse65 (select (select (store .cse69 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse70 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse59 .cse60 .cse61 .cse62 .cse63 .cse64 .cse66 .cse67 .cse68))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse16))) (+ .cse59 .cse60 .cse61 .cse62 .cse63 .cse64 .cse65 .cse66 .cse67 .cse68 (select (select (store .cse69 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse70 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse59 .cse60 .cse61 .cse62 .cse63 .cse64 .cse65 .cse66 .cse67 .cse68))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15))))))))))))) (+ .cse26 5)) (< 1 v_ArrVal_933) (< 1 v_ArrVal_941))) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~#sum~0#1.base|)) (forall ((v_ArrVal_928 Int) (v_ArrVal_938 Int) (v_ArrVal_926 Int) (v_ArrVal_936 Int) (v_ArrVal_934 Int) (v_ArrVal_933 Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (or (< 1 v_ArrVal_931) (< 1 v_ArrVal_934) (< 1 v_ArrVal_938) (< (let ((.cse74 (let ((.cse84 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse24 .cse25 v_ArrVal_926) .cse40 v_ArrVal_928) .cse41 v_ArrVal_931)))) (store .cse84 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (store (select .cse84 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_933) .cse18 v_ArrVal_934) .cse17 v_ArrVal_936) .cse16 v_ArrVal_938) .cse15 v_ArrVal_941))))) (let ((.cse75 (select .cse74 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse78 (select .cse75 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse81 (select (select .cse74 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse73 (select (select (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse75 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse78 .cse81))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse22))) (let ((.cse82 (select (select (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse75 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse73 .cse78 .cse81))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse21))) (let ((.cse83 (select (select (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse75 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse73 .cse78 .cse81 .cse82))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse20))) (let ((.cse72 (select (select (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse75 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse73 .cse78 .cse81 .cse82 .cse83))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse19))) (let ((.cse80 (select (select (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse75 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse72 .cse73 .cse78 .cse81 .cse82 .cse83))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse77 (select (select (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse75 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse72 .cse73 .cse78 .cse80 .cse81 .cse82 .cse83))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse18))) (let ((.cse76 (select (select (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse75 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse72 .cse73 .cse77 .cse78 .cse80 .cse81 .cse82 .cse83))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse17))) (let ((.cse79 (select (select (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse75 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse72 .cse73 .cse76 .cse77 .cse78 .cse80 .cse81 .cse82 .cse83))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse16))) (+ .cse72 .cse73 (select (select (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse75 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse72 .cse73 .cse76 .cse77 .cse78 .cse79 .cse80 .cse81 .cse82 .cse83))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse76 .cse77 .cse78 .cse79 .cse80 .cse81 .cse82 .cse83)))))))))))) (+ .cse26 7)) (< 1 v_ArrVal_926) (< 1 v_ArrVal_928) (< 1 v_ArrVal_936) (< 1 v_ArrVal_933) (< 1 v_ArrVal_941))) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (<= .cse43 1)))) is different from true [2023-12-02 17:52:03,166 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse39 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse21 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse22 (+ .cse39 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse37 (+ .cse39 |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse38 (+ .cse39 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse23 (* 2 |c_ULTIMATE.start_main_~i~0#1|)) (.cse16 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse17 (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse18 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse19 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse15 (+ 4 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse14 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse13 (+ 12 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse12 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (forall ((v_ArrVal_938 Int) (v_ArrVal_936 Int) (v_ArrVal_934 Int) (v_ArrVal_933 Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (or (< 1 v_ArrVal_931) (< 1 v_ArrVal_934) (< 1 v_ArrVal_938) (< (let ((.cse4 (let ((.cse20 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse21 .cse22 v_ArrVal_931)))) (store .cse20 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (store (select .cse20 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_933) .cse15 v_ArrVal_934) .cse14 v_ArrVal_936) .cse13 v_ArrVal_938) .cse12 v_ArrVal_941))))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse3 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse9 (select (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse10 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse9))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse19))) (let ((.cse1 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse9 .cse10))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse18))) (let ((.cse6 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse3 .cse9 .cse10))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17))) (let ((.cse11 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse3 .cse6 .cse9 .cse10))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse16))) (let ((.cse2 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse3 .cse6 .cse9 .cse10 .cse11))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse8 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse6 .cse9 .cse10 .cse11))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15))) (let ((.cse0 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse6 .cse8 .cse9 .cse10 .cse11))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse14))) (let ((.cse7 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse1 .cse2 .cse3 .cse6 .cse8 .cse9 .cse10 .cse11))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse13))) (+ .cse0 .cse1 .cse2 .cse3 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse1 .cse2 .cse3 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11)))))))))))) (+ .cse23 3)) (< 1 v_ArrVal_936) (< 1 v_ArrVal_933) (< 1 v_ArrVal_941))) (forall ((v_ArrVal_928 Int) (v_ArrVal_938 Int) (v_ArrVal_926 Int) (v_ArrVal_936 Int) (v_ArrVal_924 Int) (v_ArrVal_934 Int) (v_ArrVal_933 Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (or (< 1 v_ArrVal_931) (< 1 v_ArrVal_934) (< 1 v_ArrVal_938) (< 1 v_ArrVal_926) (< 1 v_ArrVal_928) (< 1 v_ArrVal_924) (< 1 v_ArrVal_936) (< (let ((.cse24 (let ((.cse36 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse21 .cse22 v_ArrVal_924) .cse37 v_ArrVal_926) .cse38 v_ArrVal_928) (+ .cse39 12 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_931)))) (store .cse36 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (store (select .cse36 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_933) .cse15 v_ArrVal_934) .cse14 v_ArrVal_936) .cse13 v_ArrVal_938) .cse12 v_ArrVal_941))))) (let ((.cse25 (select .cse24 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse26 (select (select .cse24 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse30 (select .cse25 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse32 (select (select (store .cse24 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse25 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse26 .cse30))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse19))) (let ((.cse29 (select (select (store .cse24 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse25 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse26 .cse30 .cse32))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse18))) (let ((.cse27 (select (select (store .cse24 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse25 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse26 .cse29 .cse30 .cse32))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17))) (let ((.cse33 (select (select (store .cse24 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse25 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse26 .cse27 .cse29 .cse30 .cse32))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse16))) (let ((.cse31 (select (select (store .cse24 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse25 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse26 .cse27 .cse29 .cse30 .cse32 .cse33))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse28 (select (select (store .cse24 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse25 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse26 .cse27 .cse29 .cse30 .cse31 .cse32 .cse33))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15))) (let ((.cse35 (select (select (store .cse24 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse25 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse32 .cse33))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse14))) (let ((.cse34 (select (select (store .cse24 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse25 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse32 .cse33 .cse35))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse13))) (+ (select (select (store .cse24 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse25 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse32 .cse33 .cse34 .cse35))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12) .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse32 .cse33 .cse34 .cse35)))))))))))) (+ .cse23 9)) (< 1 v_ArrVal_933) (< 1 v_ArrVal_941))) (forall ((v_ArrVal_928 Int) (v_ArrVal_938 Int) (v_ArrVal_936 Int) (v_ArrVal_934 Int) (v_ArrVal_933 Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (or (< 1 v_ArrVal_931) (< 1 v_ArrVal_934) (< 1 v_ArrVal_938) (< 1 v_ArrVal_928) (< 1 v_ArrVal_936) (< (let ((.cse50 (let ((.cse52 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse21 .cse22 v_ArrVal_928) .cse37 v_ArrVal_931)))) (store .cse52 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (store (select .cse52 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_933) .cse15 v_ArrVal_934) .cse14 v_ArrVal_936) .cse13 v_ArrVal_938) .cse12 v_ArrVal_941))))) (let ((.cse51 (select .cse50 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse41 (select (select .cse50 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse47 (select .cse51 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse40 (select (select (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse41 .cse47))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse19))) (let ((.cse49 (select (select (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse40 .cse41 .cse47))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse18))) (let ((.cse44 (select (select (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse40 .cse41 .cse47 .cse49))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17))) (let ((.cse43 (select (select (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse40 .cse41 .cse44 .cse47 .cse49))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse16))) (let ((.cse48 (select (select (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse40 .cse41 .cse43 .cse44 .cse47 .cse49))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse45 (select (select (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse40 .cse41 .cse43 .cse44 .cse47 .cse48 .cse49))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15))) (let ((.cse42 (select (select (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse40 .cse41 .cse43 .cse44 .cse45 .cse47 .cse48 .cse49))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse14))) (let ((.cse46 (select (select (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse40 .cse41 .cse42 .cse43 .cse44 .cse45 .cse47 .cse48 .cse49))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse13))) (+ .cse40 .cse41 .cse42 .cse43 .cse44 .cse45 .cse46 .cse47 .cse48 .cse49 (select (select (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse40 .cse41 .cse42 .cse43 .cse44 .cse45 .cse46 .cse47 .cse48 .cse49))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12))))))))))))) (+ .cse23 5)) (< 1 v_ArrVal_933) (< 1 v_ArrVal_941))) (forall ((v_ArrVal_928 Int) (v_ArrVal_938 Int) (v_ArrVal_926 Int) (v_ArrVal_936 Int) (v_ArrVal_934 Int) (v_ArrVal_933 Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (or (< 1 v_ArrVal_931) (< 1 v_ArrVal_934) (< 1 v_ArrVal_938) (< (let ((.cse55 (let ((.cse65 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse21 .cse22 v_ArrVal_926) .cse37 v_ArrVal_928) .cse38 v_ArrVal_931)))) (store .cse65 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (store (select .cse65 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_933) .cse15 v_ArrVal_934) .cse14 v_ArrVal_936) .cse13 v_ArrVal_938) .cse12 v_ArrVal_941))))) (let ((.cse56 (select .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse59 (select .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse62 (select (select .cse55 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse54 (select (select (store .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse59 .cse62))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse19))) (let ((.cse63 (select (select (store .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse54 .cse59 .cse62))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse18))) (let ((.cse64 (select (select (store .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse54 .cse59 .cse62 .cse63))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17))) (let ((.cse53 (select (select (store .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse54 .cse59 .cse62 .cse63 .cse64))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse16))) (let ((.cse61 (select (select (store .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse53 .cse54 .cse59 .cse62 .cse63 .cse64))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse58 (select (select (store .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse53 .cse54 .cse59 .cse61 .cse62 .cse63 .cse64))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15))) (let ((.cse57 (select (select (store .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse53 .cse54 .cse58 .cse59 .cse61 .cse62 .cse63 .cse64))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse14))) (let ((.cse60 (select (select (store .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse53 .cse54 .cse57 .cse58 .cse59 .cse61 .cse62 .cse63 .cse64))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse13))) (+ .cse53 .cse54 (select (select (store .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse53 .cse54 .cse57 .cse58 .cse59 .cse60 .cse61 .cse62 .cse63 .cse64))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12) .cse57 .cse58 .cse59 .cse60 .cse61 .cse62 .cse63 .cse64)))))))))))) (+ .cse23 7)) (< 1 v_ArrVal_926) (< 1 v_ArrVal_928) (< 1 v_ArrVal_936) (< 1 v_ArrVal_933) (< 1 v_ArrVal_941))) (forall ((v_ArrVal_938 Int) (v_ArrVal_936 Int) (v_ArrVal_934 Int) (v_ArrVal_933 Int) (v_ArrVal_941 Int)) (or (< 1 v_ArrVal_934) (< 1 v_ArrVal_938) (< (let ((.cse73 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_933) .cse15 v_ArrVal_934) .cse14 v_ArrVal_936) .cse13 v_ArrVal_938) .cse12 v_ArrVal_941)))) (let ((.cse74 (select .cse73 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse66 (select .cse74 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse76 (select (select .cse73 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse75 (select (select (store .cse73 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse66 .cse76))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse19))) (let ((.cse72 (select (select (store .cse73 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse66 .cse75 .cse76))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse18))) (let ((.cse77 (select (select (store .cse73 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse66 .cse72 .cse75 .cse76))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17))) (let ((.cse71 (select (select (store .cse73 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse66 .cse72 .cse75 .cse76 .cse77))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse16))) (let ((.cse68 (select (select (store .cse73 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse66 .cse71 .cse72 .cse75 .cse76 .cse77))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse67 (select (select (store .cse73 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse66 .cse68 .cse71 .cse72 .cse75 .cse76 .cse77))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15))) (let ((.cse69 (select (select (store .cse73 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse66 .cse67 .cse68 .cse71 .cse72 .cse75 .cse76 .cse77))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse14))) (let ((.cse70 (select (select (store .cse73 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse66 .cse67 .cse68 .cse69 .cse71 .cse72 .cse75 .cse76 .cse77))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse13))) (+ .cse66 .cse67 .cse68 .cse69 .cse70 .cse71 .cse72 (select (select (store .cse73 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse66 .cse67 .cse68 .cse69 .cse70 .cse71 .cse72 .cse75 .cse76 .cse77))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12) .cse75 .cse76 .cse77)))))))))))) (+ (* c_~N~0 2) 1)) (< 1 v_ArrVal_936) (< 1 v_ArrVal_933) (< 1 v_ArrVal_941)))))) is different from true [2023-12-02 17:52:06,772 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse51 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse21 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse22 (+ .cse51 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse37 (+ .cse51 |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse23 (* 2 |c_ULTIMATE.start_main_~i~0#1|)) (.cse16 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse17 (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse18 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse19 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse15 (+ 4 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse14 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse13 (+ 12 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse12 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (forall ((v_ArrVal_938 Int) (v_ArrVal_936 Int) (v_ArrVal_934 Int) (v_ArrVal_933 Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (or (< 1 v_ArrVal_931) (< 1 v_ArrVal_934) (< 1 v_ArrVal_938) (< (let ((.cse4 (let ((.cse20 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse21 .cse22 v_ArrVal_931)))) (store .cse20 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (store (select .cse20 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_933) .cse15 v_ArrVal_934) .cse14 v_ArrVal_936) .cse13 v_ArrVal_938) .cse12 v_ArrVal_941))))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse3 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse9 (select (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse10 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse9))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse19))) (let ((.cse1 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse9 .cse10))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse18))) (let ((.cse6 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse3 .cse9 .cse10))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17))) (let ((.cse11 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse3 .cse6 .cse9 .cse10))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse16))) (let ((.cse2 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse3 .cse6 .cse9 .cse10 .cse11))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse8 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse6 .cse9 .cse10 .cse11))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15))) (let ((.cse0 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse6 .cse8 .cse9 .cse10 .cse11))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse14))) (let ((.cse7 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse1 .cse2 .cse3 .cse6 .cse8 .cse9 .cse10 .cse11))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse13))) (+ .cse0 .cse1 .cse2 .cse3 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse1 .cse2 .cse3 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11)))))))))))) (+ .cse23 3)) (< 1 v_ArrVal_936) (< 1 v_ArrVal_933) (< 1 v_ArrVal_941))) (forall ((v_ArrVal_928 Int) (v_ArrVal_938 Int) (v_ArrVal_936 Int) (v_ArrVal_934 Int) (v_ArrVal_933 Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (or (< 1 v_ArrVal_931) (< 1 v_ArrVal_934) (< 1 v_ArrVal_938) (< 1 v_ArrVal_928) (< 1 v_ArrVal_936) (< (let ((.cse34 (let ((.cse36 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse21 .cse22 v_ArrVal_928) .cse37 v_ArrVal_931)))) (store .cse36 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (store (select .cse36 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_933) .cse15 v_ArrVal_934) .cse14 v_ArrVal_936) .cse13 v_ArrVal_938) .cse12 v_ArrVal_941))))) (let ((.cse35 (select .cse34 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse25 (select (select .cse34 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse31 (select .cse35 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse24 (select (select (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse35 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse25 .cse31))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse19))) (let ((.cse33 (select (select (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse35 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse24 .cse25 .cse31))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse18))) (let ((.cse28 (select (select (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse35 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse24 .cse25 .cse31 .cse33))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17))) (let ((.cse27 (select (select (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse35 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse24 .cse25 .cse28 .cse31 .cse33))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse16))) (let ((.cse32 (select (select (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse35 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse24 .cse25 .cse27 .cse28 .cse31 .cse33))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse29 (select (select (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse35 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse24 .cse25 .cse27 .cse28 .cse31 .cse32 .cse33))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15))) (let ((.cse26 (select (select (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse35 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse24 .cse25 .cse27 .cse28 .cse29 .cse31 .cse32 .cse33))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse14))) (let ((.cse30 (select (select (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse35 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse31 .cse32 .cse33))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse13))) (+ .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse32 .cse33 (select (select (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse35 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse32 .cse33))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12))))))))))))) (+ .cse23 5)) (< 1 v_ArrVal_933) (< 1 v_ArrVal_941))) (forall ((v_ArrVal_928 Int) (v_ArrVal_938 Int) (v_ArrVal_926 Int) (v_ArrVal_936 Int) (v_ArrVal_934 Int) (v_ArrVal_933 Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (or (< 1 v_ArrVal_931) (< 1 v_ArrVal_934) (< 1 v_ArrVal_938) (< (let ((.cse40 (let ((.cse50 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse21 .cse22 v_ArrVal_926) .cse37 v_ArrVal_928) (+ .cse51 8 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_931)))) (store .cse50 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (store (select .cse50 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_933) .cse15 v_ArrVal_934) .cse14 v_ArrVal_936) .cse13 v_ArrVal_938) .cse12 v_ArrVal_941))))) (let ((.cse41 (select .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse44 (select .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse47 (select (select .cse40 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse39 (select (select (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse44 .cse47))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse19))) (let ((.cse48 (select (select (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse39 .cse44 .cse47))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse18))) (let ((.cse49 (select (select (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse39 .cse44 .cse47 .cse48))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17))) (let ((.cse38 (select (select (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse39 .cse44 .cse47 .cse48 .cse49))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse16))) (let ((.cse46 (select (select (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse38 .cse39 .cse44 .cse47 .cse48 .cse49))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse43 (select (select (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse38 .cse39 .cse44 .cse46 .cse47 .cse48 .cse49))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15))) (let ((.cse42 (select (select (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse38 .cse39 .cse43 .cse44 .cse46 .cse47 .cse48 .cse49))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse14))) (let ((.cse45 (select (select (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse38 .cse39 .cse42 .cse43 .cse44 .cse46 .cse47 .cse48 .cse49))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse13))) (+ .cse38 .cse39 (select (select (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse38 .cse39 .cse42 .cse43 .cse44 .cse45 .cse46 .cse47 .cse48 .cse49))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12) .cse42 .cse43 .cse44 .cse45 .cse46 .cse47 .cse48 .cse49)))))))))))) (+ .cse23 7)) (< 1 v_ArrVal_926) (< 1 v_ArrVal_928) (< 1 v_ArrVal_936) (< 1 v_ArrVal_933) (< 1 v_ArrVal_941))) (forall ((v_ArrVal_938 Int) (v_ArrVal_936 Int) (v_ArrVal_934 Int) (v_ArrVal_933 Int) (v_ArrVal_941 Int)) (or (< 1 v_ArrVal_934) (< 1 v_ArrVal_938) (< (let ((.cse59 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_933) .cse15 v_ArrVal_934) .cse14 v_ArrVal_936) .cse13 v_ArrVal_938) .cse12 v_ArrVal_941)))) (let ((.cse60 (select .cse59 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse52 (select .cse60 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse62 (select (select .cse59 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse61 (select (select (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse62))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse19))) (let ((.cse58 (select (select (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse61 .cse62))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse18))) (let ((.cse63 (select (select (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse58 .cse61 .cse62))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17))) (let ((.cse57 (select (select (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse58 .cse61 .cse62 .cse63))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse16))) (let ((.cse54 (select (select (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse57 .cse58 .cse61 .cse62 .cse63))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse53 (select (select (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse54 .cse57 .cse58 .cse61 .cse62 .cse63))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15))) (let ((.cse55 (select (select (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse53 .cse54 .cse57 .cse58 .cse61 .cse62 .cse63))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse14))) (let ((.cse56 (select (select (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse53 .cse54 .cse55 .cse57 .cse58 .cse61 .cse62 .cse63))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse13))) (+ .cse52 .cse53 .cse54 .cse55 .cse56 .cse57 .cse58 (select (select (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse53 .cse54 .cse55 .cse56 .cse57 .cse58 .cse61 .cse62 .cse63))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12) .cse61 .cse62 .cse63)))))))))))) (+ (* c_~N~0 2) 1)) (< 1 v_ArrVal_936) (< 1 v_ArrVal_933) (< 1 v_ArrVal_941)))))) is different from true [2023-12-02 17:52:11,962 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 [1] [2023-12-02 17:53:00,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:53:03,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:53:08,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:53:10,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:53:15,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:53:17,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:53:19,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:53:24,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:54:02,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:54:07,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:54:11,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:54:13,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:54:15,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:54:17,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:54:19,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:54:20,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:54:22,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:54:24,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:54:25,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:54:28,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:54:30,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:54:32,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:54:33,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:54:35,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:54:37,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:54:38,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:54:40,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:55:19,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:55:20,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:55:23,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:55:26,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:55:28,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:55:32,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:55:34,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:55:36,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:55:38,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:55:39,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:55:41,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:55:42,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:55:44,680 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse26 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse71 (* |c_ULTIMATE.start_main_~i~0#1| 4)) (.cse1 (select .cse26 12)) (.cse72 (select .cse26 4)) (.cse99 (select .cse26 8)) (.cse4 (select .cse26 0)) (.cse100 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse0 (<= 5 c_~N~0)) (.cse52 (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|))) (.cse53 (select .cse100 4)) (.cse3 (select .cse100 8)) (.cse46 (= .cse4 1)) (.cse2 (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 0)) (.cse47 (= .cse99 1)) (.cse48 (= .cse72 1)) (.cse49 (= (select .cse26 (+ (* c_~N~0 4) (- 4))) 1)) (.cse50 (= .cse1 1)) (.cse29 (select .cse100 16)) (.cse51 (< 5 c_~N~0)) (.cse54 (select .cse100 0)) (.cse56 (select .cse100 12)) (.cse45 (+ .cse71 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse21 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse22 (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse23 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse24 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse20 (+ 4 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse19 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse18 (+ 12 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse17 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse27 (+ .cse71 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse43 (+ .cse71 |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse44 (+ .cse71 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse28 (* 2 |c_ULTIMATE.start_main_~i~0#1|)) (.cse55 (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|))) (.cse57 (= |c_ULTIMATE.start_main_~a~0#1.offset| 0))) (and .cse0 (<= .cse1 1) .cse2 (<= .cse3 1) (<= .cse4 1) (forall ((v_ArrVal_938 Int) (v_ArrVal_936 Int) (v_ArrVal_934 Int) (v_ArrVal_933 Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (or (< 1 v_ArrVal_931) (< 1 v_ArrVal_934) (< 1 v_ArrVal_938) (< (let ((.cse9 (let ((.cse25 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse26 .cse27 v_ArrVal_931)))) (store .cse25 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (store (select .cse25 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_933) .cse20 v_ArrVal_934) .cse19 v_ArrVal_936) .cse18 v_ArrVal_938) .cse17 v_ArrVal_941))))) (let ((.cse10 (select .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse8 (select .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse14 (select (select .cse9 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse15 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse8 .cse14))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse24))) (let ((.cse6 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse8 .cse14 .cse15))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse23))) (let ((.cse11 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse6 .cse8 .cse14 .cse15))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse22))) (let ((.cse16 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse6 .cse8 .cse11 .cse14 .cse15))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse21))) (let ((.cse7 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse6 .cse8 .cse11 .cse14 .cse15 .cse16))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse13 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse6 .cse7 .cse8 .cse11 .cse14 .cse15 .cse16))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse20))) (let ((.cse5 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse6 .cse7 .cse8 .cse11 .cse13 .cse14 .cse15 .cse16))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse19))) (let ((.cse12 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse5 .cse6 .cse7 .cse8 .cse11 .cse13 .cse14 .cse15 .cse16))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse18))) (+ .cse5 .cse6 .cse7 .cse8 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse5 .cse6 .cse7 .cse8 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse17) .cse11 .cse12 .cse13 .cse14 .cse15 .cse16)))))))))))) (+ .cse28 3)) (< 1 v_ArrVal_936) (< 1 v_ArrVal_933) (< 1 v_ArrVal_941))) (<= .cse29 1) (forall ((v_ArrVal_928 Int) (v_ArrVal_938 Int) (v_ArrVal_926 Int) (v_ArrVal_936 Int) (v_ArrVal_924 Int) (v_ArrVal_934 Int) (v_ArrVal_933 Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (or (< 1 v_ArrVal_931) (< 1 v_ArrVal_934) (< 1 v_ArrVal_938) (< 1 v_ArrVal_926) (< 1 v_ArrVal_928) (< 1 v_ArrVal_924) (< 1 v_ArrVal_936) (< (let ((.cse30 (let ((.cse42 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store .cse26 .cse27 v_ArrVal_924) .cse43 v_ArrVal_926) .cse44 v_ArrVal_928) .cse45 v_ArrVal_931)))) (store .cse42 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (store (select .cse42 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_933) .cse20 v_ArrVal_934) .cse19 v_ArrVal_936) .cse18 v_ArrVal_938) .cse17 v_ArrVal_941))))) (let ((.cse31 (select .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse32 (select (select .cse30 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse36 (select .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse38 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse32 .cse36))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse24))) (let ((.cse35 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse32 .cse36 .cse38))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse23))) (let ((.cse33 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse32 .cse35 .cse36 .cse38))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse22))) (let ((.cse39 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse32 .cse33 .cse35 .cse36 .cse38))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse21))) (let ((.cse37 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse32 .cse33 .cse35 .cse36 .cse38 .cse39))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse34 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse32 .cse33 .cse35 .cse36 .cse37 .cse38 .cse39))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse20))) (let ((.cse41 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38 .cse39))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse19))) (let ((.cse40 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38 .cse39 .cse41))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse18))) (+ (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38 .cse39 .cse40 .cse41))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse17) .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38 .cse39 .cse40 .cse41)))))))))))) (+ .cse28 9)) (< 1 v_ArrVal_933) (< 1 v_ArrVal_941))) (or (and .cse46 .cse2 .cse47 .cse48 .cse49 .cse50) .cse51) .cse52 (<= .cse53 1) (or (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0) (and .cse0 .cse52 (= .cse53 1) (= .cse3 1) (= .cse54 1) .cse55 (= .cse56 1) .cse57 (or (and .cse46 .cse2 .cse47 .cse48 .cse49 .cse50 (= .cse29 1)) .cse51))) (<= .cse54 1) (<= .cse56 1) (<= (select .cse26 16) 1) (forall ((v_ArrVal_928 Int) (v_ArrVal_938 Int) (v_ArrVal_926 Int) (v_ArrVal_936 Int) (v_ArrVal_924 Int) (v_ArrVal_934 Int) (v_ArrVal_922 Int) (v_ArrVal_933 Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (or (< 1 v_ArrVal_931) (< 1 v_ArrVal_934) (< 1 v_ArrVal_938) (< 1 v_ArrVal_926) (< 1 v_ArrVal_922) (< 1 v_ArrVal_928) (< 1 v_ArrVal_924) (< 1 v_ArrVal_936) (< (let ((.cse64 (let ((.cse70 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store (store (store .cse26 .cse27 v_ArrVal_922) .cse43 v_ArrVal_924) .cse44 v_ArrVal_926) .cse45 v_ArrVal_928) (+ .cse71 16 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_931)))) (store .cse70 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (store (select .cse70 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_933) .cse20 v_ArrVal_934) .cse19 v_ArrVal_936) .cse18 v_ArrVal_938) .cse17 v_ArrVal_941))))) (let ((.cse65 (select .cse64 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse58 (select (select .cse64 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse67 (select .cse65 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse59 (select (select (store .cse64 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse65 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse58 .cse67))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse24))) (let ((.cse62 (select (select (store .cse64 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse65 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse58 .cse59 .cse67))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse23))) (let ((.cse69 (select (select (store .cse64 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse65 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse58 .cse59 .cse62 .cse67))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse22))) (let ((.cse66 (select (select (store .cse64 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse65 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse58 .cse59 .cse62 .cse67 .cse69))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse21))) (let ((.cse61 (select (select (store .cse64 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse65 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse58 .cse59 .cse62 .cse66 .cse67 .cse69))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse68 (select (select (store .cse64 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse65 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse58 .cse59 .cse61 .cse62 .cse66 .cse67 .cse69))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse20))) (let ((.cse63 (select (select (store .cse64 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse65 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse58 .cse59 .cse61 .cse62 .cse66 .cse67 .cse68 .cse69))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse19))) (let ((.cse60 (select (select (store .cse64 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse65 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse58 .cse59 .cse61 .cse62 .cse63 .cse66 .cse67 .cse68 .cse69))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse18))) (+ .cse58 .cse59 .cse60 .cse61 .cse62 .cse63 (select (select (store .cse64 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse65 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse58 .cse59 .cse60 .cse61 .cse62 .cse63 .cse66 .cse67 .cse68 .cse69))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse17) .cse66 .cse67 .cse68 .cse69)))))))))))) (+ .cse28 11)) (< 1 v_ArrVal_933) (< 1 v_ArrVal_941))) (<= .cse72 1) (forall ((v_ArrVal_928 Int) (v_ArrVal_938 Int) (v_ArrVal_936 Int) (v_ArrVal_934 Int) (v_ArrVal_933 Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (or (< 1 v_ArrVal_931) (< 1 v_ArrVal_934) (< 1 v_ArrVal_938) (< 1 v_ArrVal_928) (< 1 v_ArrVal_936) (< (let ((.cse83 (let ((.cse85 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse26 .cse27 v_ArrVal_928) .cse43 v_ArrVal_931)))) (store .cse85 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (store (select .cse85 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_933) .cse20 v_ArrVal_934) .cse19 v_ArrVal_936) .cse18 v_ArrVal_938) .cse17 v_ArrVal_941))))) (let ((.cse84 (select .cse83 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse74 (select (select .cse83 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse80 (select .cse84 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse73 (select (select (store .cse83 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse84 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse74 .cse80))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse24))) (let ((.cse82 (select (select (store .cse83 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse84 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse73 .cse74 .cse80))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse23))) (let ((.cse77 (select (select (store .cse83 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse84 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse73 .cse74 .cse80 .cse82))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse22))) (let ((.cse76 (select (select (store .cse83 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse84 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse73 .cse74 .cse77 .cse80 .cse82))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse21))) (let ((.cse81 (select (select (store .cse83 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse84 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse73 .cse74 .cse76 .cse77 .cse80 .cse82))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse78 (select (select (store .cse83 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse84 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse73 .cse74 .cse76 .cse77 .cse80 .cse81 .cse82))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse20))) (let ((.cse75 (select (select (store .cse83 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse84 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse73 .cse74 .cse76 .cse77 .cse78 .cse80 .cse81 .cse82))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse19))) (let ((.cse79 (select (select (store .cse83 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse84 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse73 .cse74 .cse75 .cse76 .cse77 .cse78 .cse80 .cse81 .cse82))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse18))) (+ .cse73 .cse74 .cse75 .cse76 .cse77 .cse78 .cse79 .cse80 .cse81 .cse82 (select (select (store .cse83 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse84 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse73 .cse74 .cse75 .cse76 .cse77 .cse78 .cse79 .cse80 .cse81 .cse82))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse17))))))))))))) (+ .cse28 5)) (< 1 v_ArrVal_933) (< 1 v_ArrVal_941))) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~#sum~0#1.base|)) (forall ((v_ArrVal_928 Int) (v_ArrVal_938 Int) (v_ArrVal_926 Int) (v_ArrVal_936 Int) (v_ArrVal_934 Int) (v_ArrVal_933 Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (or (< 1 v_ArrVal_931) (< 1 v_ArrVal_934) (< 1 v_ArrVal_938) (< (let ((.cse88 (let ((.cse98 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (store .cse26 .cse27 v_ArrVal_926) .cse43 v_ArrVal_928) .cse44 v_ArrVal_931)))) (store .cse98 |c_ULTIMATE.start_main_~b~0#1.base| (store (store (store (store (store (select .cse98 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| v_ArrVal_933) .cse20 v_ArrVal_934) .cse19 v_ArrVal_936) .cse18 v_ArrVal_938) .cse17 v_ArrVal_941))))) (let ((.cse89 (select .cse88 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse92 (select .cse89 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse95 (select (select .cse88 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse87 (select (select (store .cse88 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse89 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse92 .cse95))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse24))) (let ((.cse96 (select (select (store .cse88 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse89 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse87 .cse92 .cse95))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse23))) (let ((.cse97 (select (select (store .cse88 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse89 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse87 .cse92 .cse95 .cse96))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse22))) (let ((.cse86 (select (select (store .cse88 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse89 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse87 .cse92 .cse95 .cse96 .cse97))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse21))) (let ((.cse94 (select (select (store .cse88 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse89 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse86 .cse87 .cse92 .cse95 .cse96 .cse97))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse91 (select (select (store .cse88 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse89 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse86 .cse87 .cse92 .cse94 .cse95 .cse96 .cse97))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse20))) (let ((.cse90 (select (select (store .cse88 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse89 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse86 .cse87 .cse91 .cse92 .cse94 .cse95 .cse96 .cse97))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse19))) (let ((.cse93 (select (select (store .cse88 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse89 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse86 .cse87 .cse90 .cse91 .cse92 .cse94 .cse95 .cse96 .cse97))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse18))) (+ .cse86 .cse87 (select (select (store .cse88 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse89 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse86 .cse87 .cse90 .cse91 .cse92 .cse93 .cse94 .cse95 .cse96 .cse97))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse17) .cse90 .cse91 .cse92 .cse93 .cse94 .cse95 .cse96 .cse97)))))))))))) (+ .cse28 7)) (< 1 v_ArrVal_926) (< 1 v_ArrVal_928) (< 1 v_ArrVal_936) (< 1 v_ArrVal_933) (< 1 v_ArrVal_941))) .cse55 .cse57 (<= .cse99 1))))) is different from true