./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-pthread/cs_dekker.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_dekker.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ --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 ee7ff83d9ca4f9baaadd009c98a7dd30697b6140296199117a6b05757b5b9f74 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:03:18,572 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:03:18,689 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-19 05:03:18,700 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:03:18,701 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:03:18,740 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:03:18,741 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:03:18,742 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:03:18,743 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:03:18,748 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:03:18,748 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:03:18,749 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:03:18,750 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:03:18,751 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:03:18,752 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:03:18,752 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:03:18,753 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:03:18,753 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:03:18,754 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:03:18,754 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:03:18,755 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:03:18,755 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:03:18,757 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:03:18,757 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:03:18,758 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:03:18,758 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:03:18,758 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:03:18,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:03:18,759 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:03:18,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:03:18,761 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:03:18,762 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 05:03:18,762 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:03:18,763 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:03:18,763 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:03:18,763 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:03:18,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:03:18,764 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:03:18,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:03:18,765 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:03:18,765 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:03:18,765 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:03:18,766 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:03:18,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:03:18,767 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:03:18,767 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:03:18,767 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:03:18,768 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_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee7ff83d9ca4f9baaadd009c98a7dd30697b6140296199117a6b05757b5b9f74 [2023-11-19 05:03:19,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:03:19,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:03:19,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:03:19,113 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:03:19,114 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:03:19,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/seq-pthread/cs_dekker.i [2023-11-19 05:03:22,202 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:03:22,496 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:03:22,497 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/sv-benchmarks/c/seq-pthread/cs_dekker.i [2023-11-19 05:03:22,525 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/data/06154d4cb/5b76940fe8744062b5a1d32a7636206e/FLAG8cf33a3d2 [2023-11-19 05:03:22,552 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/data/06154d4cb/5b76940fe8744062b5a1d32a7636206e [2023-11-19 05:03:22,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:03:22,556 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:03:22,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:03:22,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:03:22,564 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:03:22,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:03:22" (1/1) ... [2023-11-19 05:03:22,566 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7232b19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:22, skipping insertion in model container [2023-11-19 05:03:22,566 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:03:22" (1/1) ... [2023-11-19 05:03:22,629 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:03:23,234 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:03:23,251 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:03:23,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:03:23,429 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:03:23,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:23 WrapperNode [2023-11-19 05:03:23,430 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:03:23,431 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:03:23,431 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:03:23,431 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:03:23,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:23" (1/1) ... [2023-11-19 05:03:23,478 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:23" (1/1) ... [2023-11-19 05:03:23,525 INFO L138 Inliner]: procedures = 145, calls = 301, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 462 [2023-11-19 05:03:23,526 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:03:23,527 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:03:23,527 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:03:23,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:03:23,537 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:23" (1/1) ... [2023-11-19 05:03:23,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:23" (1/1) ... [2023-11-19 05:03:23,560 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:23" (1/1) ... [2023-11-19 05:03:23,560 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:23" (1/1) ... [2023-11-19 05:03:23,618 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:23" (1/1) ... [2023-11-19 05:03:23,623 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:23" (1/1) ... [2023-11-19 05:03:23,628 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:23" (1/1) ... [2023-11-19 05:03:23,644 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:23" (1/1) ... [2023-11-19 05:03:23,650 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:03:23,651 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:03:23,651 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:03:23,652 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:03:23,652 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:23" (1/1) ... [2023-11-19 05:03:23,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:03:23,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:03:23,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:03:23,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:03:23,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:03:23,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:03:23,730 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:03:23,730 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:03:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:03:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:03:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:03:23,733 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-19 05:03:23,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-19 05:03:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:03:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-11-19 05:03:23,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-11-19 05:03:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-19 05:03:23,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-19 05:03:23,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:03:23,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:03:23,735 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-19 05:03:23,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-19 05:03:23,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:03:23,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:03:23,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:03:23,968 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:03:23,971 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:03:27,063 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:03:27,201 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:03:27,202 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 05:03:27,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:03:27 BoogieIcfgContainer [2023-11-19 05:03:27,210 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:03:27,215 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:03:27,215 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:03:27,219 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:03:27,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:03:22" (1/3) ... [2023-11-19 05:03:27,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9976c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:03:27, skipping insertion in model container [2023-11-19 05:03:27,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:23" (2/3) ... [2023-11-19 05:03:27,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9976c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:03:27, skipping insertion in model container [2023-11-19 05:03:27,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:03:27" (3/3) ... [2023-11-19 05:03:27,223 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_dekker.i [2023-11-19 05:03:27,244 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:03:27,244 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-19 05:03:27,315 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:03:27,323 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;@71a6abe2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:03:27,323 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-19 05:03:27,328 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 61 states have (on average 1.3442622950819672) internal successors, (82), 69 states have internal predecessors, (82), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-19 05:03:27,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 05:03:27,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:27,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 05:03:27,337 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:03:27,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:27,345 INFO L85 PathProgramCache]: Analyzing trace with hash 10689663, now seen corresponding path program 1 times [2023-11-19 05:03:27,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:27,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914068959] [2023-11-19 05:03:27,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:27,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:28,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:28,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:28,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914068959] [2023-11-19 05:03:28,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914068959] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:28,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:03:28,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:03:28,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991053963] [2023-11-19 05:03:28,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:28,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:03:28,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:28,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:03:28,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:03:28,119 INFO L87 Difference]: Start difference. First operand has 110 states, 61 states have (on average 1.3442622950819672) internal successors, (82), 69 states have internal predecessors, (82), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2023-11-19 05:03:30,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:03:32,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:03:34,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:03:34,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:34,497 INFO L93 Difference]: Finished difference Result 218 states and 309 transitions. [2023-11-19 05:03:34,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:03:34,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-19 05:03:34,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:34,507 INFO L225 Difference]: With dead ends: 218 [2023-11-19 05:03:34,507 INFO L226 Difference]: Without dead ends: 14 [2023-11-19 05:03:34,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:03:34,517 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 3 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:34,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 391 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 3 Unknown, 0 Unchecked, 6.3s Time] [2023-11-19 05:03:34,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-19 05:03:34,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-19 05:03:34,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.5) internal successors, (15), 13 states have internal predecessors, (15), 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) [2023-11-19 05:03:34,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2023-11-19 05:03:34,553 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 4 [2023-11-19 05:03:34,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:34,554 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2023-11-19 05:03:34,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2023-11-19 05:03:34,554 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-19 05:03:34,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 05:03:34,555 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:34,555 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-19 05:03:34,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:03:34,556 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:03:34,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:34,557 INFO L85 PathProgramCache]: Analyzing trace with hash 628327632, now seen corresponding path program 1 times [2023-11-19 05:03:34,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:34,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812897288] [2023-11-19 05:03:34,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:34,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:34,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:34,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:34,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812897288] [2023-11-19 05:03:34,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812897288] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:03:34,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224101028] [2023-11-19 05:03:34,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:34,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:03:34,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:03:34,907 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:03:34,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:03:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:35,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:03:35,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:35,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:35,325 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:03:35,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224101028] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:35,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:03:35,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-19 05:03:35,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739582982] [2023-11-19 05:03:35,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:35,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:03:35,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:35,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:03:35,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:03:35,330 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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) [2023-11-19 05:03:35,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:35,464 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2023-11-19 05:03:35,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:03:35,466 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 05:03:35,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:35,467 INFO L225 Difference]: With dead ends: 15 [2023-11-19 05:03:35,467 INFO L226 Difference]: Without dead ends: 14 [2023-11-19 05:03:35,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-19 05:03:35,469 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 19 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:35,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 12 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:03:35,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-19 05:03:35,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-11-19 05:03:35,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 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) [2023-11-19 05:03:35,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2023-11-19 05:03:35,473 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 7 [2023-11-19 05:03:35,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:35,473 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2023-11-19 05:03:35,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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) [2023-11-19 05:03:35,474 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-11-19 05:03:35,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 05:03:35,474 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:35,474 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:03:35,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:03:35,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-19 05:03:35,695 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:03:35,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:35,696 INFO L85 PathProgramCache]: Analyzing trace with hash 628328384, now seen corresponding path program 1 times [2023-11-19 05:03:35,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:35,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483022783] [2023-11-19 05:03:35,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:35,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:35,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:35,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:35,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483022783] [2023-11-19 05:03:35,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483022783] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:03:35,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433731992] [2023-11-19 05:03:35,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:35,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:03:35,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:03:35,927 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:03:35,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 05:03:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:36,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:03:36,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:36,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:36,225 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:36,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:36,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433731992] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:03:36,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1630655511] [2023-11-19 05:03:36,308 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2023-11-19 05:03:36,308 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:03:36,311 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:03:36,317 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:03:36,318 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:03:47,402 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 05:03:51,740 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse3 (= |c_~#flag2~0.offset| 0)) (.cse4 (= 9 |c_~#turn~0.base|)) (.cse5 (= 2 c_~__THREAD_FINISHED~0)) (.cse6 (= |c_~#__CS_thread_born_round~0.offset| 0)) (.cse7 (= c_~__CS_ret_FINISHED~0 4)) (.cse8 (= 5 |c_~#__CS_thread_status~0.base|)) (.cse9 (= 6 |c_~#__CS_thread_lockedon~0.base|)) (.cse11 (= 2 c_~__CS_ret_ERROR~0)) (.cse26 (= c_~__CS_ret~0 0)) (.cse27 (<= 1 |c_#StackHeapBarrier|)) (.cse28 (= |c_ULTIMATE.start_main_~i~0#1| 0)) (.cse29 (= |c_ULTIMATE.start_main_~#__CS_cp_turn~0#1.offset| 0)) (.cse30 (= |c_ULTIMATE.start_main_#t~post45#1| 0)) (.cse31 (= |c_~#__CS_thread_born_round~0.base| 4)) (.cse32 (= 0 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.offset|)) (.cse33 (= |c_ULTIMATE.start_main_~j~2#1| 0)) (.cse34 (= |c_~#x~0.base| 10)) (.cse35 (= |c_~#flag1~0.offset| 0)) (.cse36 (= 7 |c_~#flag1~0.base|)) (.cse37 (= |c_ULTIMATE.start_main_~#__CS_cp_flag2~0#1.offset| 0)) (.cse38 (= 3 |c_~#__CS_thread_allocated~0.base|)) (.cse39 (= c_~__CS_error~0 0)) (.cse40 (= c_~__THREAD_UNUSED~0 0)) (.cse41 (= 0 |c_ULTIMATE.start_main_~#__CS_cp_flag1~0#1.offset|)) (.cse42 (= 0 |c_~#x~0.offset|)) (.cse48 (= 1 c_~__THREAD_RUNNING~0)) (.cse49 (= |c_~#__CS_thread_status~0.offset| 0)) (.cse50 (= 8 |c_~#flag2~0.base|)) (.cse51 (= |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 0)) (.cse52 (= c_~__CS_round~0 0)) (.cse53 (= c_~__CS_thread_index~0 0)) (.cse54 (= |c_~#__CS_thread_allocated~0.offset| 0)) (.cse55 (= c_~__CS_ret_PREEMPTED~0 1)) (.cse56 (= |c_~#__CS_thread_lockedon~0.offset| 0)) (.cse57 (= |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 0)) (.cse59 (= |c_~#turn~0.offset| 0)) (.cse64 (<= |c_ULTIMATE.start_main_~j~2#1| 2))) (and (let ((.cse24 (select |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|))) (or (let ((.cse10 (+ |c_#StackHeapBarrier| 1))) (and (exists ((|v_#memory_$Pointer$.offset_88| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_192| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_193| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_79| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_80| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~nondet47#1_7| Int) (|v_#memory_$Pointer$.offset_81| (Array Int (Array Int Int)))) (let ((.cse2 (select |v_#memory_$Pointer$.offset_192| 6))) (and (= (store |v_#memory_$Pointer$.offset_193| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| (store (select |v_#memory_$Pointer$.offset_193| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) 0 (select (select |v_#memory_$Pointer$.offset_88| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) 0))) |v_#memory_$Pointer$.offset_88|) (let ((.cse0 (select |v_#memory_$Pointer$.offset_88| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|)) (.cse1 (mod |v_ULTIMATE.start_main_#t~nondet47#1_7| 4294967296))) (or (and (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_88| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| (store .cse0 0 .cse1))) (<= .cse1 2147483647)) (and (<= 2147483648 .cse1) (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_88| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| (store .cse0 0 (+ .cse1 (- 4294967296)))))))) (= (select .cse2 16) 0) (= (store |v_#memory_$Pointer$.offset_192| |c_ULTIMATE.start_main_~#__CS_cp_flag1~0#1.base| (store (select |v_#memory_$Pointer$.offset_192| |c_ULTIMATE.start_main_~#__CS_cp_flag1~0#1.base|) 0 (select (select |v_#memory_$Pointer$.offset_80| |c_ULTIMATE.start_main_~#__CS_cp_flag1~0#1.base|) 0))) |v_#memory_$Pointer$.offset_80|) (= (select .cse2 12) 0) (= (select .cse2 8) 0) (= (select .cse2 0) 0) (= (select .cse2 28) 0) (= (select .cse2 32) 0) (= |v_#memory_$Pointer$.offset_81| (store |v_#memory_$Pointer$.offset_80| |c_ULTIMATE.start_main_~#__CS_cp_flag2~0#1.base| (store (select |v_#memory_$Pointer$.offset_80| |c_ULTIMATE.start_main_~#__CS_cp_flag2~0#1.base|) 0 (select (select |v_#memory_$Pointer$.offset_81| |c_ULTIMATE.start_main_~#__CS_cp_flag2~0#1.base|) 0)))) (= (store |v_#memory_$Pointer$.offset_81| |c_ULTIMATE.start_main_~#__CS_cp_turn~0#1.base| (store (select |v_#memory_$Pointer$.offset_81| |c_ULTIMATE.start_main_~#__CS_cp_turn~0#1.base|) 0 (select (select |v_#memory_$Pointer$.offset_79| |c_ULTIMATE.start_main_~#__CS_cp_turn~0#1.base|) 0))) |v_#memory_$Pointer$.offset_79|) (= (select .cse2 24) 0) (= (store |v_#memory_$Pointer$.offset_79| |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base| (store (select |v_#memory_$Pointer$.offset_79| |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base|) 0 (select (select |v_#memory_$Pointer$.offset_193| |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base|) 0))) |v_#memory_$Pointer$.offset_193|) (= 0 (select .cse2 4)) (= (select .cse2 20) 0)))) .cse3 (exists ((v_~__CS_thread~0.base_38 (Array Int Int))) (= c_~__CS_thread~0.base (store (store (store v_~__CS_thread~0.base_38 0 0) 1 0) 2 0))) .cse4 .cse5 .cse6 (not (= |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| 0)) .cse7 (exists ((v_~__CS_u~0.flag2_9 (Array Int Int)) (|v_ULTIMATE.start_ULTIMATE.init_#t~nondet120#1_7| Int) (|v_ULTIMATE.start_ULTIMATE.init_#t~nondet121#1_7| Int)) (= c_~__CS_u~0.flag2 (store (store (store v_~__CS_u~0.flag2_9 0 |v_ULTIMATE.start_ULTIMATE.init_#t~nondet120#1_7|) 1 |v_ULTIMATE.start_ULTIMATE.init_#t~nondet121#1_7|) 2 (select c_~__CS_u~0.flag2 2)))) .cse8 .cse9 (<= .cse10 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) .cse11 (exists ((|v_ULTIMATE.start_main_#t~nondet42#1_4| Int) (|v_ULTIMATE.start_main_#t~nondet46#1_7| Int) (|v_ULTIMATE.start_main_#t~nondet43#1_4| Int) (|v_ULTIMATE.start_main_#t~nondet41#1_4| Int) (|v_#memory_int_140| (Array Int (Array Int Int))) (|v_#memory_int_141| (Array Int (Array Int Int)))) (let ((.cse13 (select (select |v_#memory_int_141| |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base|) 0)) (.cse17 (select |v_#memory_int_140| 8)) (.cse16 (select |v_#memory_int_140| 9)) (.cse22 (select |v_#memory_int_140| 3)) (.cse21 (select |v_#memory_int_140| 10)) (.cse20 (select |v_#memory_int_140| 7)) (.cse18 (select |v_#memory_int_140| 4)) (.cse25 (select |v_#memory_int_140| 1)) (.cse19 (select |v_#memory_int_140| 5))) (and (= (let ((.cse12 (let ((.cse14 (let ((.cse15 (store |v_#memory_int_140| |c_ULTIMATE.start_main_~#__CS_cp_flag1~0#1.base| (store (select |v_#memory_int_140| |c_ULTIMATE.start_main_~#__CS_cp_flag1~0#1.base|) 0 |v_ULTIMATE.start_main_#t~nondet41#1_4|)))) (store .cse15 |c_ULTIMATE.start_main_~#__CS_cp_flag2~0#1.base| (store (select .cse15 |c_ULTIMATE.start_main_~#__CS_cp_flag2~0#1.base|) 0 |v_ULTIMATE.start_main_#t~nondet42#1_4|))))) (store .cse14 |c_ULTIMATE.start_main_~#__CS_cp_turn~0#1.base| (store (select .cse14 |c_ULTIMATE.start_main_~#__CS_cp_turn~0#1.base|) 0 |v_ULTIMATE.start_main_#t~nondet43#1_4|))))) (store .cse12 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base| (store (select .cse12 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base|) 0 .cse13))) |v_#memory_int_141|) (<= 0 (+ |v_ULTIMATE.start_main_#t~nondet42#1_4| 2147483648)) (<= 0 (+ .cse13 2147483648)) (= (select .cse16 8) 0) (= (select .cse17 0) 0) (<= .cse13 2147483647) (= (select .cse18 1) 0) (= (select .cse19 0) 0) (= (select .cse20 4) 0) (= (select .cse19 6) 0) (= (select .cse21 0) 0) (<= |v_ULTIMATE.start_main_#t~nondet42#1_4| 2147483647) (= (select .cse19 8) 0) (= (select .cse17 8) 0) (= (select .cse18 0) 0) (= (select .cse20 0) 0) (= (select .cse22 2) 0) (= (select .cse21 8) 0) (<= 0 (+ |v_ULTIMATE.start_main_#t~nondet43#1_4| 2147483648)) (= (select .cse17 4) 0) (<= |v_ULTIMATE.start_main_#t~nondet41#1_4| 2147483647) (= (select .cse22 1) 0) (= (select .cse16 0) 0) (= (let ((.cse23 (store |v_#memory_int_141| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| (store (select |v_#memory_int_141| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) 0 |v_ULTIMATE.start_main_#t~nondet46#1_7|)))) (store .cse23 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| (store (select .cse23 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) 0 (select .cse24 0)))) |c_#memory_int|) (= (select .cse19 5) 0) (= (select .cse16 4) 0) (<= 0 (+ |v_ULTIMATE.start_main_#t~nondet41#1_4| 2147483648)) (= 48 (select .cse25 0)) (= (select .cse22 0) 0) (<= |v_ULTIMATE.start_main_#t~nondet43#1_4| 2147483647) (= (select .cse21 4) 0) (= (select .cse20 8) 0) (= (select .cse18 2) 0) (= (select .cse19 4) 0) (= (select .cse19 1) 0) (= (select .cse25 1) 0) (= (select .cse19 7) 0) (= (select .cse19 2) 0) (= (select .cse19 3) 0)))) .cse26 .cse27 (not (= 0 |c_ULTIMATE.start_main_~#__CS_cp_flag2~0#1.base|)) (not (= |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base| 0)) .cse28 .cse29 .cse30 .cse31 .cse32 (exists ((v_~__CS_u~0.flag1_9 (Array Int Int))) (= (store (store (store v_~__CS_u~0.flag1_9 0 0) 1 0) 2 0) c_~__CS_u~0.flag1)) (<= .cse10 |c_ULTIMATE.start_main_~#__CS_cp_flag1~0#1.base|) (<= .cse10 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse33 .cse34 (<= .cse10 |c_ULTIMATE.start_main_~#__CS_cp_turn~0#1.base|) .cse35 .cse36 (exists ((v_~__CS_u~0.turn_9 (Array Int Int)) (|v_ULTIMATE.start_ULTIMATE.init_#t~nondet123#1_7| Int) (|v_ULTIMATE.start_ULTIMATE.init_#t~nondet124#1_7| Int)) (= c_~__CS_u~0.turn (store (store (store v_~__CS_u~0.turn_9 0 |v_ULTIMATE.start_ULTIMATE.init_#t~nondet123#1_7|) 1 |v_ULTIMATE.start_ULTIMATE.init_#t~nondet124#1_7|) 2 (select c_~__CS_u~0.turn 2)))) .cse37 .cse38 (not (= |c_ULTIMATE.start_main_~#__CS_cp_turn~0#1.base| 0)) (<= .cse10 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base|) (exists ((|v_ULTIMATE.start_ULTIMATE.init_#t~nondet127#1_7| Int) (v_~__CS_u~0.x_9 (Array Int Int)) (|v_ULTIMATE.start_ULTIMATE.init_#t~nondet126#1_7| Int)) (= c_~__CS_u~0.x (store (store (store v_~__CS_u~0.x_9 0 |v_ULTIMATE.start_ULTIMATE.init_#t~nondet126#1_7|) 1 |v_ULTIMATE.start_ULTIMATE.init_#t~nondet127#1_7|) 2 (select c_~__CS_u~0.x 2)))) .cse39 .cse40 (not (= |c_ULTIMATE.start_main_~#__CS_cp_flag1~0#1.base| 0)) .cse41 (exists ((|v_#length_22| (Array Int Int))) (and (= 9 (select |v_#length_22| 5)) (= (select |v_#length_22| 9) 12) (= (select |v_#length_22| 10) 12) (= (select |v_#length_22| 3) 3) (= (select |v_#length_22| 8) 12) (= (select |v_#length_22| 1) 2) (= 12 (select |v_#length_22| 7)) (= 3 (select |v_#length_22| 4)) (= 12 (select |v_#length_22| 2)) (= |c_#length| (store (store (store (store (store (store |v_#length_22| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| 9) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| 36) |c_ULTIMATE.start_main_~#__CS_cp_flag1~0#1.base| 12) |c_ULTIMATE.start_main_~#__CS_cp_flag2~0#1.base| 12) |c_ULTIMATE.start_main_~#__CS_cp_turn~0#1.base| 12) |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base| 12)) (= (select |v_#length_22| 6) 36))) .cse42 (exists ((|v_#valid_62| (Array Int Int))) (let ((.cse44 (store |v_#valid_62| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| 1))) (let ((.cse45 (store .cse44 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| 1))) (let ((.cse43 (store .cse45 |c_ULTIMATE.start_main_~#__CS_cp_flag1~0#1.base| 1))) (let ((.cse47 (store .cse43 |c_ULTIMATE.start_main_~#__CS_cp_flag2~0#1.base| 1))) (let ((.cse46 (store .cse47 |c_ULTIMATE.start_main_~#__CS_cp_turn~0#1.base| 1))) (and (= (select |v_#valid_62| 4) 1) (= 1 (select |v_#valid_62| 9)) (= (select |v_#valid_62| 0) 0) (= (select |v_#valid_62| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) 0) (= (select .cse43 |c_ULTIMATE.start_main_~#__CS_cp_flag2~0#1.base|) 0) (= (select .cse44 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) 0) (= (select |v_#valid_62| 5) 1) (= (select .cse45 |c_ULTIMATE.start_main_~#__CS_cp_flag1~0#1.base|) 0) (= (select |v_#valid_62| 6) 1) (= (select |v_#valid_62| 10) 1) (= (select |v_#valid_62| 3) 1) (= (select |v_#valid_62| 2) 1) (= |c_#valid| (store .cse46 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base| 1)) (= (select |v_#valid_62| 7) 1) (= (select .cse46 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base|) 0) (= (select |v_#valid_62| 1) 1) (= (select .cse47 |c_ULTIMATE.start_main_~#__CS_cp_turn~0#1.base|) 0) (= (select |v_#valid_62| 8) 1)))))))) .cse48 .cse49 (exists ((v_~__CS_thread~0.offset_38 (Array Int Int))) (= (store (store (store v_~__CS_thread~0.offset_38 0 0) 1 0) 2 0) c_~__CS_thread~0.offset)) .cse50 .cse51 .cse52 .cse53 .cse54 (<= .cse10 |c_ULTIMATE.start_main_~#__CS_cp_flag2~0#1.base|) .cse55 .cse56 .cse57 (exists ((|v_#memory_$Pointer$.base_88| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_193| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_192| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_81| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_80| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_79| (Array Int (Array Int Int)))) (let ((.cse58 (select |v_#memory_$Pointer$.base_192| 6))) (and (= (select .cse58 16) 0) (= |v_#memory_$Pointer$.base_80| (store |v_#memory_$Pointer$.base_192| |c_ULTIMATE.start_main_~#__CS_cp_flag1~0#1.base| (store (select |v_#memory_$Pointer$.base_192| |c_ULTIMATE.start_main_~#__CS_cp_flag1~0#1.base|) 0 (select (select |v_#memory_$Pointer$.base_80| |c_ULTIMATE.start_main_~#__CS_cp_flag1~0#1.base|) 0)))) (= (select .cse58 0) 0) (= (select .cse58 8) 0) (= (store |v_#memory_$Pointer$.base_80| |c_ULTIMATE.start_main_~#__CS_cp_flag2~0#1.base| (store (select |v_#memory_$Pointer$.base_80| |c_ULTIMATE.start_main_~#__CS_cp_flag2~0#1.base|) 0 (select (select |v_#memory_$Pointer$.base_81| |c_ULTIMATE.start_main_~#__CS_cp_flag2~0#1.base|) 0))) |v_#memory_$Pointer$.base_81|) (= (select .cse58 4) 0) (= (store |v_#memory_$Pointer$.base_79| |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base| (store (select |v_#memory_$Pointer$.base_79| |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base|) 0 (select (select |v_#memory_$Pointer$.base_193| |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base|) 0))) |v_#memory_$Pointer$.base_193|) (= (select .cse58 20) 0) (= (store |v_#memory_$Pointer$.base_193| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| (store (select |v_#memory_$Pointer$.base_193| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) 0 (select (select |v_#memory_$Pointer$.base_88| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) 0))) |v_#memory_$Pointer$.base_88|) (= (select .cse58 24) 0) (= 0 (select .cse58 12)) (= (store |v_#memory_$Pointer$.base_88| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| (store (select |v_#memory_$Pointer$.base_88| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) 0 0)) |c_#memory_$Pointer$.base|) (= (select .cse58 32) 0) (= (select .cse58 28) 0) (= (store |v_#memory_$Pointer$.base_81| |c_ULTIMATE.start_main_~#__CS_cp_turn~0#1.base| (store (select |v_#memory_$Pointer$.base_81| |c_ULTIMATE.start_main_~#__CS_cp_turn~0#1.base|) 0 (select (select |v_#memory_$Pointer$.base_79| |c_ULTIMATE.start_main_~#__CS_cp_turn~0#1.base|) 0))) |v_#memory_$Pointer$.base_79|)))) .cse59 (not (= |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| 0)))) (let ((.cse62 (+ (* |c_ULTIMATE.start_main_~j~2#1| 4) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| (* 12 |c_ULTIMATE.start_main_~i~0#1|))) (.cse63 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| |c_ULTIMATE.start_main_~j~2#1| (* 3 |c_ULTIMATE.start_main_~i~0#1|)))) (and (exists ((|v_#memory_$Pointer$.offset_88| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_197| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~nondet47#1_7| Int)) (and (let ((.cse61 (select |v_#memory_$Pointer$.offset_88| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|)) (.cse60 (mod |v_ULTIMATE.start_main_#t~nondet47#1_7| 4294967296))) (or (and (<= 2147483648 .cse60) (= (store |v_#memory_$Pointer$.offset_88| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| (store .cse61 .cse62 (+ .cse60 (- 4294967296)))) |c_#memory_$Pointer$.offset|)) (and (<= .cse60 2147483647) (= (store |v_#memory_$Pointer$.offset_88| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| (store .cse61 .cse62 .cse60)) |c_#memory_$Pointer$.offset|)))) (= (store |v_#memory_$Pointer$.offset_197| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| (store (select |v_#memory_$Pointer$.offset_197| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) .cse63 (select (select |v_#memory_$Pointer$.offset_88| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) .cse63))) |v_#memory_$Pointer$.offset_88|))) .cse64 (exists ((|v_ULTIMATE.start_main_#t~nondet46#1_7| Int) (|v_#memory_int_144| (Array Int (Array Int Int)))) (= (let ((.cse65 (store |v_#memory_int_144| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| (store (select |v_#memory_int_144| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) .cse63 |v_ULTIMATE.start_main_#t~nondet46#1_7|)))) (store .cse65 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| (store (select .cse65 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse62 (select .cse24 .cse62)))) |c_#memory_int|)) (= |c_ULTIMATE.start_main_~j~2#1| |c_ULTIMATE.start_main_#t~post45#1|) (exists ((|v_#memory_$Pointer$.base_88| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_197| (Array Int (Array Int Int)))) (and (= |c_#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_88| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| (store (select |v_#memory_$Pointer$.base_88| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse62 0))) (= (store |v_#memory_$Pointer$.base_197| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| (store (select |v_#memory_$Pointer$.base_197| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) .cse63 (select (select |v_#memory_$Pointer$.base_88| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) .cse63))) |v_#memory_$Pointer$.base_88|))))))) (or (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= 2 |c_ULTIMATE.start_main_~#__CS_cp_flag2~0#1.base|) .cse11 .cse26 .cse27 .cse28 .cse29 .cse30 (<= 2 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse31 .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38 (<= 2 |c_ULTIMATE.start_main_~#__CS_cp_turn~0#1.base|) .cse39 .cse40 (<= 2 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base|) .cse41 .cse42 .cse48 .cse49 (<= 2 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) .cse50 (<= 2 |c_ULTIMATE.start_main_~#__CS_cp_flag1~0#1.base|) .cse51 .cse52 .cse53 .cse54 .cse55 .cse56 .cse57 .cse59) (and (<= |c_ULTIMATE.start_main_#t~post45#1| 2) .cse64)))) is different from true [2023-11-19 05:03:51,813 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '549#(and (<= (+ 2147483650 |ULTIMATE.start_main_#t~post40#1|) 0) (<= |ULTIMATE.start_main_~j~2#1| 2147483647) (<= 3 |ULTIMATE.start_main_~j~2#1|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_#t~post40#1|))' at error location [2023-11-19 05:03:51,813 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-19 05:03:51,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 05:03:51,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-11-19 05:03:51,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283896847] [2023-11-19 05:03:51,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 05:03:51,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 05:03:51,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:51,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 05:03:51,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=118, Unknown=1, NotChecked=22, Total=182 [2023-11-19 05:03:51,818 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:52,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:52,053 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2023-11-19 05:03:52,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 05:03:52,055 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 05:03:52,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:52,056 INFO L225 Difference]: With dead ends: 29 [2023-11-19 05:03:52,056 INFO L226 Difference]: Without dead ends: 17 [2023-11-19 05:03:52,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=58, Invalid=155, Unknown=1, NotChecked=26, Total=240 [2023-11-19 05:03:52,059 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:52,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 32 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:03:52,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-19 05:03:52,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-19 05:03:52,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 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) [2023-11-19 05:03:52,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2023-11-19 05:03:52,073 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2023-11-19 05:03:52,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:52,074 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2023-11-19 05:03:52,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:52,074 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2023-11-19 05:03:52,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 05:03:52,075 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:52,076 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1] [2023-11-19 05:03:52,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 05:03:52,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:03:52,288 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:03:52,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:52,289 INFO L85 PathProgramCache]: Analyzing trace with hash -2083590759, now seen corresponding path program 1 times [2023-11-19 05:03:52,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:52,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983518207] [2023-11-19 05:03:52,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:52,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:52,495 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 05:03:52,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:52,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983518207] [2023-11-19 05:03:52,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983518207] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:52,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:03:52,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:03:52,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537383056] [2023-11-19 05:03:52,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:52,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:03:52,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:52,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:03:52,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:03:52,499 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:52,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:52,545 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2023-11-19 05:03:52,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:03:52,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-19 05:03:52,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:52,547 INFO L225 Difference]: With dead ends: 17 [2023-11-19 05:03:52,547 INFO L226 Difference]: Without dead ends: 16 [2023-11-19 05:03:52,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:03:52,549 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:52,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:03:52,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-19 05:03:52,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-19 05:03:52,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:52,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2023-11-19 05:03:52,555 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11 [2023-11-19 05:03:52,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:52,556 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-19 05:03:52,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:52,556 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2023-11-19 05:03:52,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 05:03:52,557 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:52,557 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1] [2023-11-19 05:03:52,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 05:03:52,558 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:03:52,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:52,559 INFO L85 PathProgramCache]: Analyzing trace with hash -875947680, now seen corresponding path program 2 times [2023-11-19 05:03:52,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:52,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169530754] [2023-11-19 05:03:52,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:52,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:52,855 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 05:03:52,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:52,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169530754] [2023-11-19 05:03:52,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169530754] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:52,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:03:52,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:03:52,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291472616] [2023-11-19 05:03:52,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:52,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:03:52,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:52,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:03:52,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:03:52,866 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-19 05:03:53,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:53,025 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2023-11-19 05:03:53,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:03:53,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-19 05:03:53,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:53,029 INFO L225 Difference]: With dead ends: 31 [2023-11-19 05:03:53,029 INFO L226 Difference]: Without dead ends: 29 [2023-11-19 05:03:53,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:03:53,031 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:53,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:03:53,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-19 05:03:53,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-19 05:03:53,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 28 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:53,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2023-11-19 05:03:53,039 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 13 [2023-11-19 05:03:53,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:53,040 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2023-11-19 05:03:53,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-19 05:03:53,041 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2023-11-19 05:03:53,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 05:03:53,042 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:53,042 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1] [2023-11-19 05:03:53,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 05:03:53,043 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:03:53,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:53,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1798222274, now seen corresponding path program 1 times [2023-11-19 05:03:53,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:53,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787496560] [2023-11-19 05:03:53,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:53,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:53,436 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 05:03:53,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:53,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787496560] [2023-11-19 05:03:53,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787496560] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:03:53,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488221492] [2023-11-19 05:03:53,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:53,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:03:53,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:03:53,444 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:03:53,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 05:03:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:53,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:03:53,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:53,956 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 05:03:53,956 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:03:53,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488221492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:53,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:03:53,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-19 05:03:53,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643622509] [2023-11-19 05:03:53,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:53,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:03:53,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:53,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:03:53,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:03:53,959 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2023-11-19 05:03:54,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:54,150 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2023-11-19 05:03:54,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:03:54,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-11-19 05:03:54,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:54,151 INFO L225 Difference]: With dead ends: 29 [2023-11-19 05:03:54,151 INFO L226 Difference]: Without dead ends: 28 [2023-11-19 05:03:54,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-19 05:03:54,153 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:54,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 10 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:03:54,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-19 05:03:54,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-19 05:03:54,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:54,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2023-11-19 05:03:54,160 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 26 [2023-11-19 05:03:54,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:54,160 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2023-11-19 05:03:54,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2023-11-19 05:03:54,160 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2023-11-19 05:03:54,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 05:03:54,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:54,162 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1] [2023-11-19 05:03:54,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:03:54,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-19 05:03:54,380 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:03:54,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:54,380 INFO L85 PathProgramCache]: Analyzing trace with hash 89684514, now seen corresponding path program 1 times [2023-11-19 05:03:54,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:54,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533699485] [2023-11-19 05:03:54,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:54,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:54,639 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-19 05:03:54,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:54,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533699485] [2023-11-19 05:03:54,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533699485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:54,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:03:54,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:03:54,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754553670] [2023-11-19 05:03:54,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:54,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:03:54,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:54,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:03:54,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:03:54,643 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-19 05:03:54,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:54,736 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2023-11-19 05:03:54,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:03:54,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-11-19 05:03:54,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:54,738 INFO L225 Difference]: With dead ends: 28 [2023-11-19 05:03:54,738 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 05:03:54,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:03:54,739 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:54,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:03:54,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 05:03:54,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 05:03:54,741 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) [2023-11-19 05:03:54,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 05:03:54,741 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2023-11-19 05:03:54,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:54,741 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 05:03:54,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-19 05:03:54,742 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 05:03:54,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 05:03:54,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-19 05:03:54,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-19 05:03:54,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-19 05:03:54,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-19 05:03:54,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-19 05:03:54,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-19 05:03:54,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-19 05:03:54,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-19 05:03:54,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 05:03:54,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 05:03:54,940 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 5 7) the Hoare annotation is: true [2023-11-19 05:03:54,940 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2023-11-19 05:03:54,941 INFO L899 garLoopResultBuilder]: For program point __CS_pthread_joinEXIT(lines 642 663) no Hoare annotation was computed. [2023-11-19 05:03:54,941 INFO L899 garLoopResultBuilder]: For program point __CS_pthread_joinFINAL(lines 642 663) no Hoare annotation was computed. [2023-11-19 05:03:54,941 INFO L902 garLoopResultBuilder]: At program point L661(line 661) the Hoare annotation is: true [2023-11-19 05:03:54,942 INFO L899 garLoopResultBuilder]: For program point L661-1(line 661) no Hoare annotation was computed. [2023-11-19 05:03:54,942 INFO L899 garLoopResultBuilder]: For program point L655(lines 655 660) no Hoare annotation was computed. [2023-11-19 05:03:54,943 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 642 663) the Hoare annotation is: true [2023-11-19 05:03:54,944 INFO L899 garLoopResultBuilder]: For program point L650-2(lines 650 654) no Hoare annotation was computed. [2023-11-19 05:03:54,945 INFO L899 garLoopResultBuilder]: For program point L644(lines 644 649) no Hoare annotation was computed. [2023-11-19 05:03:54,945 INFO L902 garLoopResultBuilder]: At program point L787(line 787) the Hoare annotation is: true [2023-11-19 05:03:54,945 INFO L899 garLoopResultBuilder]: For program point L787-1(lines 776 790) no Hoare annotation was computed. [2023-11-19 05:03:54,945 INFO L902 garLoopResultBuilder]: At program point L783(line 783) the Hoare annotation is: true [2023-11-19 05:03:54,945 INFO L899 garLoopResultBuilder]: For program point L783-1(lines 776 790) no Hoare annotation was computed. [2023-11-19 05:03:54,945 INFO L902 garLoopResultBuilder]: At program point L779(line 779) the Hoare annotation is: true [2023-11-19 05:03:54,945 INFO L899 garLoopResultBuilder]: For program point L779-1(lines 776 790) no Hoare annotation was computed. [2023-11-19 05:03:54,946 INFO L899 garLoopResultBuilder]: For program point L775(lines 775 790) no Hoare annotation was computed. [2023-11-19 05:03:54,946 INFO L902 garLoopResultBuilder]: At program point L788(line 788) the Hoare annotation is: true [2023-11-19 05:03:54,946 INFO L899 garLoopResultBuilder]: For program point L788-1(line 788) no Hoare annotation was computed. [2023-11-19 05:03:54,946 INFO L902 garLoopResultBuilder]: At program point L784(line 784) the Hoare annotation is: true [2023-11-19 05:03:54,947 INFO L899 garLoopResultBuilder]: For program point L784-1(line 784) no Hoare annotation was computed. [2023-11-19 05:03:54,947 INFO L899 garLoopResultBuilder]: For program point ##fun~$Pointer$~TO~$Pointer$EXIT(line -1) no Hoare annotation was computed. [2023-11-19 05:03:54,948 INFO L902 garLoopResultBuilder]: At program point L789(line 789) the Hoare annotation is: true [2023-11-19 05:03:54,948 INFO L899 garLoopResultBuilder]: For program point L789-1(lines 776 790) no Hoare annotation was computed. [2023-11-19 05:03:54,949 INFO L902 garLoopResultBuilder]: At program point L785(line 785) the Hoare annotation is: true [2023-11-19 05:03:54,949 INFO L899 garLoopResultBuilder]: For program point L785-1(lines 776 790) no Hoare annotation was computed. [2023-11-19 05:03:54,949 INFO L902 garLoopResultBuilder]: At program point L781(line 781) the Hoare annotation is: true [2023-11-19 05:03:54,953 INFO L899 garLoopResultBuilder]: For program point L781-1(lines 776 790) no Hoare annotation was computed. [2023-11-19 05:03:54,954 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-11-19 05:03:54,954 INFO L902 garLoopResultBuilder]: At program point L786(line 786) the Hoare annotation is: true [2023-11-19 05:03:54,954 INFO L899 garLoopResultBuilder]: For program point L786-1(line 786) no Hoare annotation was computed. [2023-11-19 05:03:54,954 INFO L902 garLoopResultBuilder]: At program point L782(line 782) the Hoare annotation is: true [2023-11-19 05:03:54,955 INFO L899 garLoopResultBuilder]: For program point L782-1(line 782) no Hoare annotation was computed. [2023-11-19 05:03:54,955 INFO L899 garLoopResultBuilder]: For program point __CS_pthread_createEXIT(lines 664 677) no Hoare annotation was computed. [2023-11-19 05:03:54,955 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 664 677) the Hoare annotation is: true [2023-11-19 05:03:54,955 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 800) no Hoare annotation was computed. [2023-11-19 05:03:54,955 INFO L902 garLoopResultBuilder]: At program point L861(line 861) the Hoare annotation is: true [2023-11-19 05:03:54,955 INFO L899 garLoopResultBuilder]: For program point L861-1(line 861) no Hoare annotation was computed. [2023-11-19 05:03:54,955 INFO L902 garLoopResultBuilder]: At program point L845(line 845) the Hoare annotation is: true [2023-11-19 05:03:54,955 INFO L899 garLoopResultBuilder]: For program point L845-1(line 845) no Hoare annotation was computed. [2023-11-19 05:03:54,955 INFO L902 garLoopResultBuilder]: At program point L870(line 870) the Hoare annotation is: true [2023-11-19 05:03:54,956 INFO L899 garLoopResultBuilder]: For program point L870-1(line 870) no Hoare annotation was computed. [2023-11-19 05:03:54,956 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 805) no Hoare annotation was computed. [2023-11-19 05:03:54,956 INFO L902 garLoopResultBuilder]: At program point L862(line 862) the Hoare annotation is: true [2023-11-19 05:03:54,956 INFO L899 garLoopResultBuilder]: For program point L862-1(line 862) no Hoare annotation was computed. [2023-11-19 05:03:54,956 INFO L902 garLoopResultBuilder]: At program point L854(line 854) the Hoare annotation is: true [2023-11-19 05:03:54,956 INFO L899 garLoopResultBuilder]: For program point L854-1(line 854) no Hoare annotation was computed. [2023-11-19 05:03:54,956 INFO L902 garLoopResultBuilder]: At program point L871(line 871) the Hoare annotation is: true [2023-11-19 05:03:54,956 INFO L899 garLoopResultBuilder]: For program point L871-1(line 871) no Hoare annotation was computed. [2023-11-19 05:03:54,956 INFO L899 garLoopResultBuilder]: For program point L805-3(line 805) no Hoare annotation was computed. [2023-11-19 05:03:54,957 INFO L899 garLoopResultBuilder]: For program point L805-4(line 805) no Hoare annotation was computed. [2023-11-19 05:03:54,959 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 805) no Hoare annotation was computed. [2023-11-19 05:03:54,959 INFO L895 garLoopResultBuilder]: At program point L805-5(lines 805 808) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~i~0#1| 0)) (.cse1 (= |ULTIMATE.start_main_~j~2#1| 0)) (.cse3 (<= 1 |ULTIMATE.start_main_~i~0#1|)) (.cse4 (<= |ULTIMATE.start_main_~i~0#1| 2)) (.cse2 (<= 1 |ULTIMATE.start_main_~j~2#1|))) (or (and .cse0 .cse1) (and .cse0 .cse2) (and .cse3 .cse4 .cse1) (and .cse3 .cse4 .cse2))) [2023-11-19 05:03:54,959 INFO L902 garLoopResultBuilder]: At program point L863(line 863) the Hoare annotation is: true [2023-11-19 05:03:54,959 INFO L899 garLoopResultBuilder]: For program point L863-1(line 863) no Hoare annotation was computed. [2023-11-19 05:03:54,959 INFO L902 garLoopResultBuilder]: At program point L855(line 855) the Hoare annotation is: true [2023-11-19 05:03:54,959 INFO L899 garLoopResultBuilder]: For program point L855-1(line 855) no Hoare annotation was computed. [2023-11-19 05:03:54,959 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 05:03:54,959 INFO L902 garLoopResultBuilder]: At program point L872(line 872) the Hoare annotation is: true [2023-11-19 05:03:54,960 INFO L902 garLoopResultBuilder]: At program point L839(line 839) the Hoare annotation is: true [2023-11-19 05:03:54,960 INFO L899 garLoopResultBuilder]: For program point L872-1(line 872) no Hoare annotation was computed. [2023-11-19 05:03:54,960 INFO L899 garLoopResultBuilder]: For program point L839-1(line 839) no Hoare annotation was computed. [2023-11-19 05:03:54,960 INFO L902 garLoopResultBuilder]: At program point L864(line 864) the Hoare annotation is: true [2023-11-19 05:03:54,960 INFO L899 garLoopResultBuilder]: For program point L864-1(line 864) no Hoare annotation was computed. [2023-11-19 05:03:54,961 INFO L902 garLoopResultBuilder]: At program point L856(line 856) the Hoare annotation is: true [2023-11-19 05:03:54,962 INFO L899 garLoopResultBuilder]: For program point L856-1(line 856) no Hoare annotation was computed. [2023-11-19 05:03:54,962 INFO L899 garLoopResultBuilder]: For program point L848(lines 848 853) no Hoare annotation was computed. [2023-11-19 05:03:54,962 INFO L899 garLoopResultBuilder]: For program point L848-1(lines 848 853) no Hoare annotation was computed. [2023-11-19 05:03:54,962 INFO L902 garLoopResultBuilder]: At program point L873(line 873) the Hoare annotation is: true [2023-11-19 05:03:54,963 INFO L899 garLoopResultBuilder]: For program point L873-1(line 873) no Hoare annotation was computed. [2023-11-19 05:03:54,964 INFO L902 garLoopResultBuilder]: At program point L865(line 865) the Hoare annotation is: true [2023-11-19 05:03:54,964 INFO L899 garLoopResultBuilder]: For program point L865-1(line 865) no Hoare annotation was computed. [2023-11-19 05:03:54,964 INFO L902 garLoopResultBuilder]: At program point L857(line 857) the Hoare annotation is: true [2023-11-19 05:03:54,964 INFO L899 garLoopResultBuilder]: For program point L857-1(line 857) no Hoare annotation was computed. [2023-11-19 05:03:54,964 INFO L902 garLoopResultBuilder]: At program point L866(line 866) the Hoare annotation is: true [2023-11-19 05:03:54,964 INFO L899 garLoopResultBuilder]: For program point L866-1(line 866) no Hoare annotation was computed. [2023-11-19 05:03:54,964 INFO L899 garLoopResultBuilder]: For program point L800-3(line 800) no Hoare annotation was computed. [2023-11-19 05:03:54,964 INFO L899 garLoopResultBuilder]: For program point L800-4(line 800) no Hoare annotation was computed. [2023-11-19 05:03:54,965 INFO L895 garLoopResultBuilder]: At program point L800-5(lines 800 809) the Hoare annotation is: (or (< 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0)) [2023-11-19 05:03:54,965 INFO L902 garLoopResultBuilder]: At program point L858(line 858) the Hoare annotation is: true [2023-11-19 05:03:54,965 INFO L899 garLoopResultBuilder]: For program point L858-1(line 858) no Hoare annotation was computed. [2023-11-19 05:03:54,965 INFO L899 garLoopResultBuilder]: For program point L842(lines 842 847) no Hoare annotation was computed. [2023-11-19 05:03:54,965 INFO L899 garLoopResultBuilder]: For program point L842-1(lines 842 847) no Hoare annotation was computed. [2023-11-19 05:03:54,965 INFO L902 garLoopResultBuilder]: At program point L867(line 867) the Hoare annotation is: true [2023-11-19 05:03:54,965 INFO L899 garLoopResultBuilder]: For program point L867-1(line 867) no Hoare annotation was computed. [2023-11-19 05:03:54,966 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 05:03:54,966 INFO L902 garLoopResultBuilder]: At program point L859(line 859) the Hoare annotation is: true [2023-11-19 05:03:54,967 INFO L899 garLoopResultBuilder]: For program point L859-1(line 859) no Hoare annotation was computed. [2023-11-19 05:03:54,967 INFO L902 garLoopResultBuilder]: At program point L851(line 851) the Hoare annotation is: true [2023-11-19 05:03:54,967 INFO L899 garLoopResultBuilder]: For program point L851-1(line 851) no Hoare annotation was computed. [2023-11-19 05:03:54,967 INFO L902 garLoopResultBuilder]: At program point L868(line 868) the Hoare annotation is: true [2023-11-19 05:03:54,967 INFO L899 garLoopResultBuilder]: For program point L868-1(line 868) no Hoare annotation was computed. [2023-11-19 05:03:54,968 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 800) no Hoare annotation was computed. [2023-11-19 05:03:54,968 INFO L902 garLoopResultBuilder]: At program point L860(line 860) the Hoare annotation is: true [2023-11-19 05:03:54,968 INFO L899 garLoopResultBuilder]: For program point L860-1(line 860) no Hoare annotation was computed. [2023-11-19 05:03:54,968 INFO L902 garLoopResultBuilder]: At program point L869(line 869) the Hoare annotation is: true [2023-11-19 05:03:54,968 INFO L899 garLoopResultBuilder]: For program point L836(lines 836 841) no Hoare annotation was computed. [2023-11-19 05:03:54,968 INFO L899 garLoopResultBuilder]: For program point L869-1(line 869) no Hoare annotation was computed. [2023-11-19 05:03:54,968 INFO L899 garLoopResultBuilder]: For program point L836-1(lines 836 841) no Hoare annotation was computed. [2023-11-19 05:03:54,968 INFO L899 garLoopResultBuilder]: For program point __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 565) no Hoare annotation was computed. [2023-11-19 05:03:54,969 INFO L899 garLoopResultBuilder]: For program point __CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 565) no Hoare annotation was computed. [2023-11-19 05:03:54,969 INFO L899 garLoopResultBuilder]: For program point __CS_csEXIT(lines 562 568) no Hoare annotation was computed. [2023-11-19 05:03:54,969 INFO L899 garLoopResultBuilder]: For program point __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 566) no Hoare annotation was computed. [2023-11-19 05:03:54,969 INFO L899 garLoopResultBuilder]: For program point __CS_csErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 566) no Hoare annotation was computed. [2023-11-19 05:03:54,969 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 562 568) the Hoare annotation is: true [2023-11-19 05:03:54,969 INFO L899 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2023-11-19 05:03:54,969 INFO L899 garLoopResultBuilder]: For program point L565(line 565) no Hoare annotation was computed. [2023-11-19 05:03:54,970 INFO L899 garLoopResultBuilder]: For program point L565-1(line 565) no Hoare annotation was computed. [2023-11-19 05:03:54,970 INFO L902 garLoopResultBuilder]: At program point L565-2(line 565) the Hoare annotation is: true [2023-11-19 05:03:54,970 INFO L899 garLoopResultBuilder]: For program point L565-3(line 565) no Hoare annotation was computed. [2023-11-19 05:03:54,973 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-11-19 05:03:54,976 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:03:54,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:03:54 BoogieIcfgContainer [2023-11-19 05:03:54,997 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:03:54,998 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:03:54,998 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:03:54,998 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:03:54,999 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:03:27" (3/4) ... [2023-11-19 05:03:55,001 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 05:03:55,004 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_pthread_join [2023-11-19 05:03:55,004 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-19 05:03:55,004 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_pthread_create [2023-11-19 05:03:55,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 05:03:55,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_cs [2023-11-19 05:03:55,035 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 51 nodes and edges [2023-11-19 05:03:55,037 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-11-19 05:03:55,038 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-19 05:03:55,040 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 05:03:55,041 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 05:03:55,301 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:03:55,302 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 05:03:55,302 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:03:55,303 INFO L158 Benchmark]: Toolchain (without parser) took 32746.89ms. Allocated memory was 161.5MB in the beginning and 570.4MB in the end (delta: 408.9MB). Free memory was 114.4MB in the beginning and 262.5MB in the end (delta: -148.1MB). Peak memory consumption was 262.9MB. Max. memory is 16.1GB. [2023-11-19 05:03:55,303 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 61.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:03:55,304 INFO L158 Benchmark]: CACSL2BoogieTranslator took 872.33ms. Allocated memory is still 161.5MB. Free memory was 114.4MB in the beginning and 86.6MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-19 05:03:55,304 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.55ms. Allocated memory is still 161.5MB. Free memory was 86.6MB in the beginning and 81.9MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:03:55,305 INFO L158 Benchmark]: Boogie Preprocessor took 123.79ms. Allocated memory is still 161.5MB. Free memory was 81.9MB in the beginning and 78.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:03:55,305 INFO L158 Benchmark]: RCFGBuilder took 3559.22ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 78.3MB in the beginning and 158.2MB in the end (delta: -79.9MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2023-11-19 05:03:55,306 INFO L158 Benchmark]: TraceAbstraction took 27782.20ms. Allocated memory was 195.0MB in the beginning and 570.4MB in the end (delta: 375.4MB). Free memory was 158.2MB in the beginning and 273.0MB in the end (delta: -114.8MB). Peak memory consumption was 260.6MB. Max. memory is 16.1GB. [2023-11-19 05:03:55,307 INFO L158 Benchmark]: Witness Printer took 304.45ms. Allocated memory is still 570.4MB. Free memory was 273.0MB in the beginning and 262.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 05:03:55,310 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 61.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 872.33ms. Allocated memory is still 161.5MB. Free memory was 114.4MB in the beginning and 86.6MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.55ms. Allocated memory is still 161.5MB. Free memory was 86.6MB in the beginning and 81.9MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 123.79ms. Allocated memory is still 161.5MB. Free memory was 81.9MB in the beginning and 78.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3559.22ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 78.3MB in the beginning and 158.2MB in the end (delta: -79.9MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. * TraceAbstraction took 27782.20ms. Allocated memory was 195.0MB in the beginning and 570.4MB in the end (delta: 375.4MB). Free memory was 158.2MB in the beginning and 273.0MB in the end (delta: -114.8MB). Peak memory consumption was 260.6MB. Max. memory is 16.1GB. * Witness Printer took 304.45ms. Allocated memory is still 570.4MB. Free memory was 273.0MB in the beginning and 262.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 805]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 805]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 800]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 800]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 565]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 565]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 110 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 27.7s, OverallIterations: 7, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 45 SdHoareTripleChecker+Valid, 7.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 45 mSDsluCounter, 470 SdHoareTripleChecker+Invalid, 6.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 312 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 164 IncrementalHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 158 mSDtfsCounter, 164 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 171 PreInvPairs, 204 NumberOfFragments, 82 HoareAnnotationTreeSize, 171 FomulaSimplifications, 43 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 42 FomulaSimplificationsInter, 40 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 131 ConstructedInterpolants, 0 QuantifiedInterpolants, 331 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1397 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 168/209 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 800]: Loop Invariant Derived loop invariant: ((0 < i) || (i == 0)) - InvariantResult [Line: 805]: Loop Invariant Derived loop invariant: (((((i == 0) && (j == 0)) || ((i == 0) && (1 <= j))) || (((1 <= i) && (i <= 2)) && (j == 0))) || (((1 <= i) && (i <= 2)) && (1 <= j))) RESULT: Ultimate proved your program to be correct! [2023-11-19 05:03:55,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c3103d4-3eba-48ec-9fac-dc53ac7696e6/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE