./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/copy-partial-2-n-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/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_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/copy-partial-2-n-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a46b64c20324a7544dfe7936b5f39eaa32bba659068797748195a7f292bdaee --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:14:29,658 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:14:29,721 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 16:14:29,726 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:14:29,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:14:29,749 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:14:29,750 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:14:29,750 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:14:29,751 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:14:29,752 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:14:29,752 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:14:29,753 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:14:29,753 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:14:29,754 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:14:29,754 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:14:29,754 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:14:29,755 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:14:29,755 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:14:29,756 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:14:29,756 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:14:29,757 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:14:29,758 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:14:29,758 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:14:29,759 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:14:29,759 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:14:29,760 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:14:29,760 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:14:29,761 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:14:29,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:14:29,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:14:29,762 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:14:29,762 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 16:14:29,762 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 16:14:29,763 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:14:29,763 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:14:29,763 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:14:29,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:14:29,764 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:14:29,764 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:14:29,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:14:29,764 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:14:29,765 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:14:29,765 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:14:29,765 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:14:29,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:14:29,766 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:14:29,766 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:14:29,766 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:14:29,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:14:29,766 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_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a46b64c20324a7544dfe7936b5f39eaa32bba659068797748195a7f292bdaee [2023-12-02 16:14:29,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:14:30,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:14:30,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:14:30,020 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:14:30,020 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:14:30,021 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/array-multidimensional/copy-partial-2-n-u.c [2023-12-02 16:14:32,769 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:14:32,954 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:14:32,955 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/sv-benchmarks/c/array-multidimensional/copy-partial-2-n-u.c [2023-12-02 16:14:32,963 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/data/07e6f61af/a491a806c71b460dbce1effaf068539d/FLAG9e74b62eb [2023-12-02 16:14:32,978 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/data/07e6f61af/a491a806c71b460dbce1effaf068539d [2023-12-02 16:14:32,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:14:32,982 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:14:32,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:14:32,984 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:14:32,989 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:14:32,990 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:14:32" (1/1) ... [2023-12-02 16:14:32,992 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6989c980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:32, skipping insertion in model container [2023-12-02 16:14:32,992 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:14:32" (1/1) ... [2023-12-02 16:14:33,015 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:14:33,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:14:33,191 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:14:33,214 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:14:33,229 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:14:33,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:33 WrapperNode [2023-12-02 16:14:33,230 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:14:33,231 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:14:33,231 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:14:33,232 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:14:33,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:33" (1/1) ... [2023-12-02 16:14:33,247 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:33" (1/1) ... [2023-12-02 16:14:33,270 INFO L138 Inliner]: procedures = 15, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 99 [2023-12-02 16:14:33,271 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:14:33,271 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:14:33,272 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:14:33,272 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:14:33,281 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:33" (1/1) ... [2023-12-02 16:14:33,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:33" (1/1) ... [2023-12-02 16:14:33,284 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:33" (1/1) ... [2023-12-02 16:14:33,284 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:33" (1/1) ... [2023-12-02 16:14:33,290 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:33" (1/1) ... [2023-12-02 16:14:33,295 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:33" (1/1) ... [2023-12-02 16:14:33,296 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:33" (1/1) ... [2023-12-02 16:14:33,297 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:33" (1/1) ... [2023-12-02 16:14:33,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:14:33,301 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:14:33,301 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:14:33,301 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:14:33,302 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:33" (1/1) ... [2023-12-02 16:14:33,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:14:33,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:14:33,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:14:33,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:14:33,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:14:33,370 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 16:14:33,370 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 16:14:33,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:14:33,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 16:14:33,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 16:14:33,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:14:33,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:14:33,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 16:14:33,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 16:14:33,444 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:14:33,446 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:14:33,637 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:14:33,696 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:14:33,696 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-02 16:14:33,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:14:33 BoogieIcfgContainer [2023-12-02 16:14:33,697 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:14:33,700 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:14:33,700 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:14:33,703 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:14:33,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:14:32" (1/3) ... [2023-12-02 16:14:33,704 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697a9149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:14:33, skipping insertion in model container [2023-12-02 16:14:33,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:33" (2/3) ... [2023-12-02 16:14:33,704 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697a9149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:14:33, skipping insertion in model container [2023-12-02 16:14:33,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:14:33" (3/3) ... [2023-12-02 16:14:33,706 INFO L112 eAbstractionObserver]: Analyzing ICFG copy-partial-2-n-u.c [2023-12-02 16:14:33,721 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:14:33,721 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-12-02 16:14:33,784 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:14:33,790 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;@78476574, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:14:33,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-12-02 16:14:33,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 33 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 16:14:33,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 16:14:33,800 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:33,801 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:14:33,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-12-02 16:14:33,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:33,832 INFO L85 PathProgramCache]: Analyzing trace with hash -539999756, now seen corresponding path program 1 times [2023-12-02 16:14:33,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:33,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112417285] [2023-12-02 16:14:33,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:33,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:33,909 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:14:33,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [957372668] [2023-12-02 16:14:33,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:33,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:14:33,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:14:33,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:14:33,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 16:14:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:33,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 16:14:34,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:14:34,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 16:14:34,037 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:14:34,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:34,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112417285] [2023-12-02 16:14:34,038 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:14:34,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957372668] [2023-12-02 16:14:34,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957372668] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:14:34,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:14:34,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:14:34,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813290185] [2023-12-02 16:14:34,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:14:34,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:14:34,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:34,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:14:34,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:14:34,078 INFO L87 Difference]: Start difference. First operand has 37 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 33 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:14:34,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:34,147 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2023-12-02 16:14:34,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:14:34,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 11 [2023-12-02 16:14:34,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:34,155 INFO L225 Difference]: With dead ends: 37 [2023-12-02 16:14:34,155 INFO L226 Difference]: Without dead ends: 33 [2023-12-02 16:14:34,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 16:14:34,160 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 23 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:34,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 24 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:14:34,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-12-02 16:14:34,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-12-02 16:14:34,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 29 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 16:14:34,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2023-12-02 16:14:34,190 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 11 [2023-12-02 16:14:34,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:34,192 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2023-12-02 16:14:34,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:14:34,192 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2023-12-02 16:14:34,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 16:14:34,193 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:34,193 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:14:34,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:14:34,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 16:14:34,394 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-12-02 16:14:34,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:34,395 INFO L85 PathProgramCache]: Analyzing trace with hash -539995781, now seen corresponding path program 1 times [2023-12-02 16:14:34,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:34,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271285576] [2023-12-02 16:14:34,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:34,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:34,404 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:14:34,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [967062572] [2023-12-02 16:14:34,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:34,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:14:34,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:14:34,407 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:14:34,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 16:14:34,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:34,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 16:14:34,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:14:34,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 16:14:34,481 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:14:34,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:34,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271285576] [2023-12-02 16:14:34,482 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:14:34,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967062572] [2023-12-02 16:14:34,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967062572] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:14:34,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:14:34,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:14:34,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620333274] [2023-12-02 16:14:34,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:14:34,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:14:34,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:34,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:14:34,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:14:34,485 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:14:34,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:34,527 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2023-12-02 16:14:34,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:14:34,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 11 [2023-12-02 16:14:34,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:34,528 INFO L225 Difference]: With dead ends: 33 [2023-12-02 16:14:34,528 INFO L226 Difference]: Without dead ends: 30 [2023-12-02 16:14:34,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 16:14:34,530 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 22 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:34,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 18 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:14:34,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-12-02 16:14:34,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-12-02 16:14:34,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 26 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 16:14:34,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2023-12-02 16:14:34,537 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 11 [2023-12-02 16:14:34,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:34,538 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2023-12-02 16:14:34,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:14:34,538 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2023-12-02 16:14:34,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 16:14:34,539 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:34,539 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:14:34,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 16:14:34,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-02 16:14:34,743 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-12-02 16:14:34,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:34,744 INFO L85 PathProgramCache]: Analyzing trace with hash 439876805, now seen corresponding path program 1 times [2023-12-02 16:14:34,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:34,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63094432] [2023-12-02 16:14:34,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:34,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:34,753 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:14:34,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [404876380] [2023-12-02 16:14:34,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:34,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:14:34,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:14:34,755 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:14:34,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 16:14:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:34,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 16:14:34,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:14:34,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 16:14:34,826 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:14:34,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:34,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63094432] [2023-12-02 16:14:34,827 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:14:34,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404876380] [2023-12-02 16:14:34,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404876380] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:14:34,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:14:34,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:14:34,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801691430] [2023-12-02 16:14:34,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:14:34,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:14:34,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:34,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:14:34,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:14:34,829 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:14:34,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:34,889 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2023-12-02 16:14:34,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:14:34,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 12 [2023-12-02 16:14:34,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:34,891 INFO L225 Difference]: With dead ends: 54 [2023-12-02 16:14:34,891 INFO L226 Difference]: Without dead ends: 51 [2023-12-02 16:14:34,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 16:14:34,893 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 16 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:34,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 33 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:14:34,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-12-02 16:14:34,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 39. [2023-12-02 16:14:34,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 35 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 16:14:34,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2023-12-02 16:14:34,902 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 12 [2023-12-02 16:14:34,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:34,902 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2023-12-02 16:14:34,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:14:34,902 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2023-12-02 16:14:34,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 16:14:34,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:34,903 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:14:34,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 16:14:35,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:14:35,107 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-12-02 16:14:35,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:35,108 INFO L85 PathProgramCache]: Analyzing trace with hash 440000037, now seen corresponding path program 1 times [2023-12-02 16:14:35,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:35,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783853549] [2023-12-02 16:14:35,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:35,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:35,116 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:14:35,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1654272383] [2023-12-02 16:14:35,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:35,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:14:35,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:14:35,117 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:14:35,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 16:14:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:35,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 16:14:35,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:14:35,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 16:14:35,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:14:35,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:35,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783853549] [2023-12-02 16:14:35,175 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:14:35,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654272383] [2023-12-02 16:14:35,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654272383] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:14:35,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:14:35,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:14:35,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030187233] [2023-12-02 16:14:35,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:14:35,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:14:35,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:35,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:14:35,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:14:35,178 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:14:35,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:35,240 INFO L93 Difference]: Finished difference Result 72 states and 89 transitions. [2023-12-02 16:14:35,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:14:35,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 12 [2023-12-02 16:14:35,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:35,242 INFO L225 Difference]: With dead ends: 72 [2023-12-02 16:14:35,242 INFO L226 Difference]: Without dead ends: 69 [2023-12-02 16:14:35,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 16:14:35,243 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 18 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:35,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 30 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:14:35,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-12-02 16:14:35,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 66. [2023-12-02 16:14:35,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 57 states have (on average 1.4385964912280702) internal successors, (82), 62 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 16:14:35,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 86 transitions. [2023-12-02 16:14:35,257 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 86 transitions. Word has length 12 [2023-12-02 16:14:35,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:35,257 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 86 transitions. [2023-12-02 16:14:35,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:14:35,258 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 86 transitions. [2023-12-02 16:14:35,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 16:14:35,259 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:35,259 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:14:35,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 16:14:35,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:14:35,464 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-12-02 16:14:35,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:35,464 INFO L85 PathProgramCache]: Analyzing trace with hash 424730354, now seen corresponding path program 1 times [2023-12-02 16:14:35,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:35,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974506612] [2023-12-02 16:14:35,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:35,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:35,474 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:14:35,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [976195843] [2023-12-02 16:14:35,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:35,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:14:35,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:14:35,476 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:14:35,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 16:14:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:35,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:14:35,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:14:35,586 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 16:14:35,586 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:14:35,620 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 16:14:35,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:35,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974506612] [2023-12-02 16:14:35,621 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:14:35,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976195843] [2023-12-02 16:14:35,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976195843] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:14:35,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1364321633] [2023-12-02 16:14:35,642 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2023-12-02 16:14:35,642 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:14:35,646 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:14:35,650 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:14:35,651 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:14:36,716 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 79 for LOIs [2023-12-02 16:14:36,758 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:14:37,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1364321633] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:14:37,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:14:37,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3, 3] total 11 [2023-12-02 16:14:37,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881767391] [2023-12-02 16:14:37,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:14:37,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 16:14:37,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:37,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 16:14:37,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-12-02 16:14:37,830 INFO L87 Difference]: Start difference. First operand 66 states and 86 transitions. Second operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:14:38,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:38,761 INFO L93 Difference]: Finished difference Result 121 states and 154 transitions. [2023-12-02 16:14:38,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 16:14:38,761 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2023-12-02 16:14:38,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:38,762 INFO L225 Difference]: With dead ends: 121 [2023-12-02 16:14:38,762 INFO L226 Difference]: Without dead ends: 68 [2023-12-02 16:14:38,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-12-02 16:14:38,764 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 66 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:38,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 17 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 16:14:38,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-12-02 16:14:38,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64. [2023-12-02 16:14:38,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 60 states have internal predecessors, (74), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 16:14:38,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 78 transitions. [2023-12-02 16:14:38,780 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 78 transitions. Word has length 15 [2023-12-02 16:14:38,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:38,780 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 78 transitions. [2023-12-02 16:14:38,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:14:38,780 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2023-12-02 16:14:38,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 16:14:38,781 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:38,781 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:14:38,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 16:14:38,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:14:38,981 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-12-02 16:14:38,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:38,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1232275747, now seen corresponding path program 1 times [2023-12-02 16:14:38,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:38,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784248486] [2023-12-02 16:14:38,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:38,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:38,990 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:14:38,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1166805185] [2023-12-02 16:14:38,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:38,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:14:38,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:14:38,992 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:14:38,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 16:14:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:39,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 16:14:39,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:14:39,074 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 16:14:39,075 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:14:39,113 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 16:14:39,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:39,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784248486] [2023-12-02 16:14:39,113 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:14:39,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166805185] [2023-12-02 16:14:39,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166805185] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:14:39,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1484717771] [2023-12-02 16:14:39,116 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2023-12-02 16:14:39,116 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:14:39,117 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:14:39,117 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:14:39,117 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:14:40,271 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 79 for LOIs [2023-12-02 16:14:40,298 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:14:41,045 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1107#(<= 2147483647 |ULTIMATE.start_main_~i~0#1|)' at error location [2023-12-02 16:14:41,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:14:41,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:14:41,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-02 16:14:41,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784469159] [2023-12-02 16:14:41,046 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 16:14:41,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 16:14:41,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:41,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 16:14:41,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2023-12-02 16:14:41,048 INFO L87 Difference]: Start difference. First operand 64 states and 78 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 16:14:41,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:41,240 INFO L93 Difference]: Finished difference Result 218 states and 275 transitions. [2023-12-02 16:14:41,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 16:14:41,241 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 19 [2023-12-02 16:14:41,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:41,243 INFO L225 Difference]: With dead ends: 218 [2023-12-02 16:14:41,243 INFO L226 Difference]: Without dead ends: 165 [2023-12-02 16:14:41,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2023-12-02 16:14:41,245 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 214 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:41,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 62 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:14:41,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-12-02 16:14:41,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 92. [2023-12-02 16:14:41,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 83 states have (on average 1.2771084337349397) internal successors, (106), 88 states have internal predecessors, (106), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 16:14:41,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 110 transitions. [2023-12-02 16:14:41,271 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 110 transitions. Word has length 19 [2023-12-02 16:14:41,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:41,272 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 110 transitions. [2023-12-02 16:14:41,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 16:14:41,272 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 110 transitions. [2023-12-02 16:14:41,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-02 16:14:41,273 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:41,273 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:14:41,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 16:14:41,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 16:14:41,474 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-12-02 16:14:41,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:41,475 INFO L85 PathProgramCache]: Analyzing trace with hash -2104286160, now seen corresponding path program 1 times [2023-12-02 16:14:41,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:41,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011825035] [2023-12-02 16:14:41,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:41,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:41,486 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:14:41,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [53943781] [2023-12-02 16:14:41,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:41,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:14:41,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:14:41,488 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:14:41,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 16:14:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:41,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 16:14:41,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:14:41,629 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 40 proven. 22 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 16:14:41,629 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:14:41,711 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 40 proven. 22 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 16:14:41,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:41,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011825035] [2023-12-02 16:14:41,711 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:14:41,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53943781] [2023-12-02 16:14:41,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53943781] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:14:41,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1168758557] [2023-12-02 16:14:41,714 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2023-12-02 16:14:41,714 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:14:41,715 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:14:41,715 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:14:41,715 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:14:42,581 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 79 for LOIs [2023-12-02 16:14:42,601 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:14:43,254 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1734#(and (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (exists ((|v_#memory_int_52| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_52| |ULTIMATE.start_main_~#B~0#1.base| (store (select |v_#memory_int_52| |ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| 4)) (* |ULTIMATE.start_main_~j~0#1| 4)) (select (select |#memory_int| |ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| 4)) (* |ULTIMATE.start_main_~j~0#1| 4))))))) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~m~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (<= (select (select |#memory_int| |ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| 4)) (* |ULTIMATE.start_main_~j~0#1| 4))) 2147483647) (<= 2147483647 |ULTIMATE.start_main_~j~0#1|) (<= (+ |ULTIMATE.start_main_~j~0#1| 1) |ULTIMATE.start_main_~n~0#1|) (<= 0 (+ (select (select |#memory_int| |ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| 4)) (* |ULTIMATE.start_main_~j~0#1| 4))) 2147483648)))' at error location [2023-12-02 16:14:43,254 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:14:43,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:14:43,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-12-02 16:14:43,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846009481] [2023-12-02 16:14:43,255 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 16:14:43,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 16:14:43,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:43,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 16:14:43,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2023-12-02 16:14:43,257 INFO L87 Difference]: Start difference. First operand 92 states and 110 transitions. Second operand has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 16:14:43,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:43,685 INFO L93 Difference]: Finished difference Result 426 states and 538 transitions. [2023-12-02 16:14:43,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 16:14:43,685 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2023-12-02 16:14:43,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:43,688 INFO L225 Difference]: With dead ends: 426 [2023-12-02 16:14:43,688 INFO L226 Difference]: Without dead ends: 354 [2023-12-02 16:14:43,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 78 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2023-12-02 16:14:43,690 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 423 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:43,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 90 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 16:14:43,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-12-02 16:14:43,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 164. [2023-12-02 16:14:43,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 155 states have (on average 1.2451612903225806) internal successors, (193), 160 states have internal predecessors, (193), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 16:14:43,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 197 transitions. [2023-12-02 16:14:43,733 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 197 transitions. Word has length 34 [2023-12-02 16:14:43,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:43,733 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 197 transitions. [2023-12-02 16:14:43,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 16:14:43,734 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 197 transitions. [2023-12-02 16:14:43,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 16:14:43,736 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:43,736 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:14:43,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 16:14:43,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:14:43,937 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-12-02 16:14:43,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:43,938 INFO L85 PathProgramCache]: Analyzing trace with hash -2134501555, now seen corresponding path program 1 times [2023-12-02 16:14:43,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:43,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014312512] [2023-12-02 16:14:43,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:43,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:43,950 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:14:43,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [185635330] [2023-12-02 16:14:43,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:43,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:14:43,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:14:43,951 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:14:43,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 16:14:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:44,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 16:14:44,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:14:44,207 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 1 proven. 145 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-02 16:14:44,208 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:14:44,399 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 1 proven. 145 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-02 16:14:44,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:44,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014312512] [2023-12-02 16:14:44,399 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:14:44,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185635330] [2023-12-02 16:14:44,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185635330] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:14:44,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [539816928] [2023-12-02 16:14:44,402 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2023-12-02 16:14:44,402 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:14:44,402 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:14:44,402 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:14:44,402 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:14:45,818 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 79 for LOIs [2023-12-02 16:14:45,837 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:14:46,725 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2858#(< 2147483646 |ULTIMATE.start_main_~i~0#1|)' at error location [2023-12-02 16:14:46,726 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:14:46,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:14:46,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-12-02 16:14:46,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056615838] [2023-12-02 16:14:46,726 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 16:14:46,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-02 16:14:46,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:46,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-02 16:14:46,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=1055, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 16:14:46,729 INFO L87 Difference]: Start difference. First operand 164 states and 197 transitions. Second operand has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 26 states have internal predecessors, (80), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 16:14:47,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:47,684 INFO L93 Difference]: Finished difference Result 858 states and 1084 transitions. [2023-12-02 16:14:47,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-02 16:14:47,685 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 26 states have internal predecessors, (80), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2023-12-02 16:14:47,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:47,689 INFO L225 Difference]: With dead ends: 858 [2023-12-02 16:14:47,689 INFO L226 Difference]: Without dead ends: 732 [2023-12-02 16:14:47,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 121 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 917 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=637, Invalid=1715, Unknown=0, NotChecked=0, Total=2352 [2023-12-02 16:14:47,692 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 1263 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:47,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 180 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 16:14:47,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2023-12-02 16:14:47,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 308. [2023-12-02 16:14:47,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 299 states have (on average 1.2274247491638797) internal successors, (367), 304 states have internal predecessors, (367), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 16:14:47,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 371 transitions. [2023-12-02 16:14:47,778 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 371 transitions. Word has length 54 [2023-12-02 16:14:47,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:47,778 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 371 transitions. [2023-12-02 16:14:47,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 26 states have internal predecessors, (80), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 16:14:47,779 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 371 transitions. [2023-12-02 16:14:47,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-02 16:14:47,781 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:47,782 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:14:47,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 16:14:47,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:14:47,982 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-12-02 16:14:47,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:47,983 INFO L85 PathProgramCache]: Analyzing trace with hash 918776973, now seen corresponding path program 2 times [2023-12-02 16:14:47,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:47,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842094067] [2023-12-02 16:14:47,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:47,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:48,000 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:14:48,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [946004662] [2023-12-02 16:14:48,000 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 16:14:48,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:14:48,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:14:48,001 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:14:48,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 16:14:48,075 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-12-02 16:14:48,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:14:48,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:14:48,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:14:48,158 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2023-12-02 16:14:48,158 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:14:48,260 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2023-12-02 16:14:48,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:48,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842094067] [2023-12-02 16:14:48,261 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:14:48,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946004662] [2023-12-02 16:14:48,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946004662] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:14:48,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [630571177] [2023-12-02 16:14:48,264 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2023-12-02 16:14:48,264 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:14:48,264 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:14:48,264 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:14:48,264 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:14:50,539 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 79 for LOIs [2023-12-02 16:14:50,558 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:14:51,925 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4932#(and (<= 1 |ULTIMATE.start_main_~q~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 2147483647 |ULTIMATE.start_main_~i~0#1|))' at error location [2023-12-02 16:14:51,925 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:14:51,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:14:51,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-02 16:14:51,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447584270] [2023-12-02 16:14:51,926 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 16:14:51,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:14:51,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:51,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:14:51,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2023-12-02 16:14:51,927 INFO L87 Difference]: Start difference. First operand 308 states and 371 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 16:14:52,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:52,062 INFO L93 Difference]: Finished difference Result 380 states and 455 transitions. [2023-12-02 16:14:52,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:14:52,062 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 90 [2023-12-02 16:14:52,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:52,065 INFO L225 Difference]: With dead ends: 380 [2023-12-02 16:14:52,065 INFO L226 Difference]: Without dead ends: 377 [2023-12-02 16:14:52,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 249 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2023-12-02 16:14:52,066 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 56 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:52,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 29 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:14:52,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-12-02 16:14:52,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 302. [2023-12-02 16:14:52,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 295 states have (on average 1.1864406779661016) internal successors, (350), 298 states have internal predecessors, (350), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 16:14:52,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 354 transitions. [2023-12-02 16:14:52,117 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 354 transitions. Word has length 90 [2023-12-02 16:14:52,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:52,117 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 354 transitions. [2023-12-02 16:14:52,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 16:14:52,117 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 354 transitions. [2023-12-02 16:14:52,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-02 16:14:52,119 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:52,119 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 33, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:14:52,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-02 16:14:52,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:14:52,320 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-12-02 16:14:52,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:52,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1546757817, now seen corresponding path program 2 times [2023-12-02 16:14:52,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:52,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58324049] [2023-12-02 16:14:52,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:52,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:52,342 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:14:52,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [60374512] [2023-12-02 16:14:52,342 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 16:14:52,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:14:52,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:14:52,343 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:14:52,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 16:14:52,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-12-02 16:14:52,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:14:52,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:14:52,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:14:52,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1720 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 1654 trivial. 0 not checked. [2023-12-02 16:14:52,542 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:14:52,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1720 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 1654 trivial. 0 not checked. [2023-12-02 16:14:52,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:52,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58324049] [2023-12-02 16:14:52,647 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:14:52,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60374512] [2023-12-02 16:14:52,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60374512] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:14:52,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1866541661] [2023-12-02 16:14:52,649 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2023-12-02 16:14:52,649 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:14:52,650 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:14:52,650 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:14:52,650 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:14:53,449 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 79 for LOIs [2023-12-02 16:14:53,468 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:14:54,134 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6553#(and (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~m~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (<= (select (select |#memory_int| |ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| 4)) (* |ULTIMATE.start_main_~j~0#1| 4))) 2147483647) (<= 2147483647 |ULTIMATE.start_main_~j~0#1|) (exists ((|v_#memory_int_196| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_196| |ULTIMATE.start_main_~#B~0#1.base| (store (select |v_#memory_int_196| |ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| 4)) (* |ULTIMATE.start_main_~j~0#1| 4)) (select (select |#memory_int| |ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| 4)) (* |ULTIMATE.start_main_~j~0#1| 4))))))) (<= (+ |ULTIMATE.start_main_~j~0#1| 1) |ULTIMATE.start_main_~n~0#1|) (<= 0 (+ (select (select |#memory_int| |ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| 4)) (* |ULTIMATE.start_main_~j~0#1| 4))) 2147483648)))' at error location [2023-12-02 16:14:54,134 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:14:54,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:14:54,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-02 16:14:54,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368870109] [2023-12-02 16:14:54,134 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 16:14:54,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:14:54,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:54,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:14:54,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-12-02 16:14:54,136 INFO L87 Difference]: Start difference. First operand 302 states and 354 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 16:14:54,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:54,267 INFO L93 Difference]: Finished difference Result 314 states and 368 transitions. [2023-12-02 16:14:54,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:14:54,268 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 115 [2023-12-02 16:14:54,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:54,270 INFO L225 Difference]: With dead ends: 314 [2023-12-02 16:14:54,270 INFO L226 Difference]: Without dead ends: 313 [2023-12-02 16:14:54,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 329 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2023-12-02 16:14:54,271 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 66 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:54,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 44 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:14:54,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-12-02 16:14:54,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 301. [2023-12-02 16:14:54,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 295 states have (on average 1.111864406779661) internal successors, (328), 297 states have internal predecessors, (328), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 16:14:54,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 332 transitions. [2023-12-02 16:14:54,321 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 332 transitions. Word has length 115 [2023-12-02 16:14:54,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:54,321 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 332 transitions. [2023-12-02 16:14:54,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 16:14:54,322 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 332 transitions. [2023-12-02 16:14:54,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-02 16:14:54,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:54,324 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 12, 12, 11, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:14:54,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-02 16:14:54,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-02 16:14:54,524 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-12-02 16:14:54,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:54,525 INFO L85 PathProgramCache]: Analyzing trace with hash -519693270, now seen corresponding path program 1 times [2023-12-02 16:14:54,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:54,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564830915] [2023-12-02 16:14:54,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:54,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:54,548 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:14:54,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1417431133] [2023-12-02 16:14:54,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:54,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:14:54,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:14:54,549 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:14:54,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 16:14:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:54,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 16:14:54,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:14:55,074 INFO L134 CoverageAnalysis]: Checked inductivity of 916 backedges. 1 proven. 715 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2023-12-02 16:14:55,074 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:14:55,569 INFO L134 CoverageAnalysis]: Checked inductivity of 916 backedges. 1 proven. 715 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2023-12-02 16:14:55,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:55,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564830915] [2023-12-02 16:14:55,569 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:14:55,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417431133] [2023-12-02 16:14:55,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417431133] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:14:55,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [509510557] [2023-12-02 16:14:55,571 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2023-12-02 16:14:55,571 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:14:55,571 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:14:55,572 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:14:55,572 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:14:56,444 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 79 for LOIs [2023-12-02 16:14:56,463 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:14:58,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [509510557] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:14:58,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:14:58,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [26, 26] total 60 [2023-12-02 16:14:58,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22610879] [2023-12-02 16:14:58,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:14:58,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 16:14:58,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:58,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 16:14:58,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1296, Invalid=2243, Unknown=1, NotChecked=0, Total=3540 [2023-12-02 16:14:58,456 INFO L87 Difference]: Start difference. First operand 301 states and 332 transitions. Second operand has 12 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:15:00,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:15:00,339 INFO L93 Difference]: Finished difference Result 461 states and 542 transitions. [2023-12-02 16:15:00,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 16:15:00,339 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 116 [2023-12-02 16:15:00,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:15:00,342 INFO L225 Difference]: With dead ends: 461 [2023-12-02 16:15:00,342 INFO L226 Difference]: Without dead ends: 376 [2023-12-02 16:15:00,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 273 SyntacticMatches, 15 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2376 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1514, Invalid=3174, Unknown=4, NotChecked=0, Total=4692 [2023-12-02 16:15:00,344 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 110 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 54 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 16:15:00,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 5 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 191 Invalid, 9 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 16:15:00,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2023-12-02 16:15:00,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 237. [2023-12-02 16:15:00,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.1379310344827587) internal successors, (264), 233 states have internal predecessors, (264), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 16:15:00,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 268 transitions. [2023-12-02 16:15:00,408 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 268 transitions. Word has length 116 [2023-12-02 16:15:00,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:15:00,408 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 268 transitions. [2023-12-02 16:15:00,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:15:00,409 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 268 transitions. [2023-12-02 16:15:00,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-02 16:15:00,411 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:15:00,411 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 13, 13, 12, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:15:00,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-02 16:15:00,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:15:00,612 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-12-02 16:15:00,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:15:00,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1812028060, now seen corresponding path program 1 times [2023-12-02 16:15:00,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:15:00,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317948859] [2023-12-02 16:15:00,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:15:00,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:15:00,641 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:15:00,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1023649843] [2023-12-02 16:15:00,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:15:00,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:15:00,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:15:00,642 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:15:00,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 16:15:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:15:00,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 16:15:00,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:15:01,340 INFO L134 CoverageAnalysis]: Checked inductivity of 3182 backedges. 1499 proven. 715 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2023-12-02 16:15:01,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:15:01,916 INFO L134 CoverageAnalysis]: Checked inductivity of 3182 backedges. 1499 proven. 715 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2023-12-02 16:15:01,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:15:01,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317948859] [2023-12-02 16:15:01,916 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:15:01,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023649843] [2023-12-02 16:15:01,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023649843] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:15:01,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [22816885] [2023-12-02 16:15:01,918 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2023-12-02 16:15:01,918 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:15:01,918 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:15:01,919 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:15:01,919 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:15:03,274 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 79 for LOIs [2023-12-02 16:15:03,292 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:15:04,406 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10305#(and (exists ((|v_#memory_int_336| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_336| |ULTIMATE.start_main_~#A~0#1.base| (store (select |v_#memory_int_336| |ULTIMATE.start_main_~#A~0#1.base|) (+ |ULTIMATE.start_main_~#A~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| 4)) (* |ULTIMATE.start_main_~j~0#1| 4)) (select (select |v_#memory_int_336| |ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| 4)) (* |ULTIMATE.start_main_~j~0#1| 4))))))) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= (+ |ULTIMATE.start_main_~j~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (<= 2147483647 |ULTIMATE.start_main_~j~0#1|))' at error location [2023-12-02 16:15:04,407 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:15:04,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:15:04,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-12-02 16:15:04,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046483515] [2023-12-02 16:15:04,407 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 16:15:04,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-12-02 16:15:04,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:15:04,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-12-02 16:15:04,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1230, Invalid=2552, Unknown=0, NotChecked=0, Total=3782 [2023-12-02 16:15:04,410 INFO L87 Difference]: Start difference. First operand 237 states and 268 transitions. Second operand has 50 states, 50 states have (on average 3.14) internal successors, (157), 50 states have internal predecessors, (157), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 16:15:07,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:15:07,824 INFO L93 Difference]: Finished difference Result 1350 states and 1688 transitions. [2023-12-02 16:15:07,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-02 16:15:07,825 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 3.14) internal successors, (157), 50 states have internal predecessors, (157), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 193 [2023-12-02 16:15:07,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:15:07,830 INFO L225 Difference]: With dead ends: 1350 [2023-12-02 16:15:07,830 INFO L226 Difference]: Without dead ends: 1187 [2023-12-02 16:15:07,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 513 SyntacticMatches, 4 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2502 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=2380, Invalid=4760, Unknown=0, NotChecked=0, Total=7140 [2023-12-02 16:15:07,833 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 2874 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 958 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2874 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 1556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 958 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:15:07,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2874 Valid, 220 Invalid, 1556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [958 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-02 16:15:07,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2023-12-02 16:15:07,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 453. [2023-12-02 16:15:07,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.125) internal successors, (504), 449 states have internal predecessors, (504), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 16:15:07,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 508 transitions. [2023-12-02 16:15:07,952 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 508 transitions. Word has length 193 [2023-12-02 16:15:07,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:15:07,953 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 508 transitions. [2023-12-02 16:15:07,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.14) internal successors, (157), 50 states have internal predecessors, (157), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 16:15:07,953 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 508 transitions. [2023-12-02 16:15:07,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2023-12-02 16:15:07,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:15:07,957 INFO L195 NwaCegarLoop]: trace histogram [92, 92, 92, 25, 25, 24, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:15:07,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-02 16:15:08,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-02 16:15:08,157 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-12-02 16:15:08,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:15:08,158 INFO L85 PathProgramCache]: Analyzing trace with hash -459022180, now seen corresponding path program 2 times [2023-12-02 16:15:08,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:15:08,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5612870] [2023-12-02 16:15:08,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:15:08,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:15:08,217 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:15:08,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1963556119] [2023-12-02 16:15:08,217 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 16:15:08,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:15:08,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:15:08,218 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:15:08,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-02 16:15:08,388 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-12-02 16:15:08,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:15:08,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:15:08,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:15:08,717 INFO L134 CoverageAnalysis]: Checked inductivity of 13676 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 13628 trivial. 0 not checked. [2023-12-02 16:15:08,718 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:15:09,017 INFO L134 CoverageAnalysis]: Checked inductivity of 13676 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 13628 trivial. 0 not checked. [2023-12-02 16:15:09,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:15:09,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5612870] [2023-12-02 16:15:09,017 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:15:09,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963556119] [2023-12-02 16:15:09,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963556119] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:15:09,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1685163946] [2023-12-02 16:15:09,020 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2023-12-02 16:15:09,020 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:15:09,020 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:15:09,020 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:15:09,020 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:15:10,302 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 79 for LOIs [2023-12-02 16:15:10,322 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:15:11,190 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15001#(and (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= (+ |ULTIMATE.start_main_~j~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (exists ((|v_#memory_int_485| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_485| |ULTIMATE.start_main_~#A~0#1.base| (store (select |v_#memory_int_485| |ULTIMATE.start_main_~#A~0#1.base|) (+ |ULTIMATE.start_main_~#A~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| 4)) (* |ULTIMATE.start_main_~j~0#1| 4)) (select (select |v_#memory_int_485| |ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| 4)) (* |ULTIMATE.start_main_~j~0#1| 4))))))) (<= 2147483647 |ULTIMATE.start_main_~j~0#1|))' at error location [2023-12-02 16:15:11,190 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:15:11,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:15:11,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-02 16:15:11,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420006953] [2023-12-02 16:15:11,191 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 16:15:11,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:15:11,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:15:11,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:15:11,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-12-02 16:15:11,192 INFO L87 Difference]: Start difference. First operand 453 states and 508 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 16:15:11,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:15:11,392 INFO L93 Difference]: Finished difference Result 459 states and 515 transitions. [2023-12-02 16:15:11,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:15:11,392 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 373 [2023-12-02 16:15:11,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:15:11,393 INFO L225 Difference]: With dead ends: 459 [2023-12-02 16:15:11,393 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 16:15:11,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1119 GetRequests, 1097 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2023-12-02 16:15:11,395 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 38 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:15:11,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 36 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:15:11,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 16:15:11,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 16:15:11,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:15:11,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 16:15:11,396 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 373 [2023-12-02 16:15:11,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:15:11,396 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 16:15:11,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 16:15:11,396 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 16:15:11,396 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 16:15:11,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2023-12-02 16:15:11,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2023-12-02 16:15:11,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2023-12-02 16:15:11,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2023-12-02 16:15:11,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2023-12-02 16:15:11,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2023-12-02 16:15:11,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2023-12-02 16:15:11,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2023-12-02 16:15:11,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2023-12-02 16:15:11,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2023-12-02 16:15:11,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2023-12-02 16:15:11,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2023-12-02 16:15:11,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-02 16:15:11,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e06f4e4-68e5-4dba-85e1-4a430d02d8c0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-02 16:15:11,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 16:19:10,511 WARN L293 SmtUtils]: Spent 3.98m on a formula simplification. DAG size of input: 405 DAG size of output: 497 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)