./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aca349e1b3075e13240eff0eeaaa2d6c5037eeae5747b24322472cf3e2c19f6a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:09:19,441 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:09:19,517 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 17:09:19,522 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:09:19,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:09:19,549 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:09:19,550 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:09:19,550 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:09:19,551 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:09:19,552 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:09:19,552 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:09:19,553 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:09:19,554 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:09:19,554 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:09:19,555 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:09:19,556 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:09:19,556 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:09:19,557 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:09:19,558 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:09:19,558 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:09:19,559 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:09:19,560 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:09:19,561 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:09:19,562 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:09:19,562 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:09:19,563 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:09:19,563 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:09:19,564 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:09:19,564 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:09:19,564 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:09:19,565 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:09:19,565 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 17:09:19,566 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 17:09:19,566 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:09:19,566 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:09:19,567 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:09:19,567 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:09:19,567 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:09:19,567 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:09:19,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:09:19,568 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:09:19,568 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:09:19,569 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:09:19,569 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:09:19,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:09:19,569 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:09:19,570 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:09:19,570 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:09:19,570 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:09:19,570 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_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aca349e1b3075e13240eff0eeaaa2d6c5037eeae5747b24322472cf3e2c19f6a [2023-12-02 17:09:19,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:09:19,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:09:19,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:09:19,850 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:09:19,851 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:09:19,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound5.c [2023-12-02 17:09:23,109 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:09:23,333 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:09:23,334 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound5.c [2023-12-02 17:09:23,344 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/data/b097bad67/512affa8e7954c9aae3e578d6717f145/FLAG3d2f782b5 [2023-12-02 17:09:23,363 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/data/b097bad67/512affa8e7954c9aae3e578d6717f145 [2023-12-02 17:09:23,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:09:23,368 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:09:23,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:09:23,370 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:09:23,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:09:23,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:09:23" (1/1) ... [2023-12-02 17:09:23,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2efa4aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:09:23, skipping insertion in model container [2023-12-02 17:09:23,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:09:23" (1/1) ... [2023-12-02 17:09:23,407 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:09:23,614 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:09:23,627 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:09:23,651 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:09:23,669 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:09:23,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:09:23 WrapperNode [2023-12-02 17:09:23,670 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:09:23,671 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:09:23,671 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:09:23,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:09:23,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:09:23" (1/1) ... [2023-12-02 17:09:23,689 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:09:23" (1/1) ... [2023-12-02 17:09:23,715 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2023-12-02 17:09:23,715 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:09:23,716 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:09:23,716 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:09:23,716 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:09:23,728 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:09:23" (1/1) ... [2023-12-02 17:09:23,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:09:23" (1/1) ... [2023-12-02 17:09:23,731 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:09:23" (1/1) ... [2023-12-02 17:09:23,731 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:09:23" (1/1) ... [2023-12-02 17:09:23,735 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:09:23" (1/1) ... [2023-12-02 17:09:23,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:09:23" (1/1) ... [2023-12-02 17:09:23,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:09:23" (1/1) ... [2023-12-02 17:09:23,742 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:09:23" (1/1) ... [2023-12-02 17:09:23,744 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:09:23,746 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:09:23,746 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:09:23,746 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:09:23,747 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:09:23" (1/1) ... [2023-12-02 17:09:23,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:09:23,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:09:23,783 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:09:23,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:09:23,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:09:23,829 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 17:09:23,830 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 17:09:23,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:09:23,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:09:23,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:09:23,830 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 17:09:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 17:09:23,908 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:09:23,910 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:09:24,217 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:09:24,257 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:09:24,257 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 17:09:24,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:09:24 BoogieIcfgContainer [2023-12-02 17:09:24,260 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:09:24,263 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:09:24,263 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:09:24,268 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:09:24,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:09:23" (1/3) ... [2023-12-02 17:09:24,269 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b5c29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:09:24, skipping insertion in model container [2023-12-02 17:09:24,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:09:23" (2/3) ... [2023-12-02 17:09:24,270 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b5c29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:09:24, skipping insertion in model container [2023-12-02 17:09:24,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:09:24" (3/3) ... [2023-12-02 17:09:24,271 INFO L112 eAbstractionObserver]: Analyzing ICFG geo2-ll_valuebound5.c [2023-12-02 17:09:24,293 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:09:24,293 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-12-02 17:09:24,369 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:09:24,376 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;@6d68a9a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:09:24,377 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-12-02 17:09:24,381 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 36 states have (on average 1.8333333333333333) internal successors, (66), 64 states have internal predecessors, (66), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 17:09:24,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 17:09:24,388 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:09:24,388 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:09:24,389 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-12-02 17:09:24,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:09:24,394 INFO L85 PathProgramCache]: Analyzing trace with hash 587997184, now seen corresponding path program 1 times [2023-12-02 17:09:24,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:09:24,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032200865] [2023-12-02 17:09:24,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:24,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:09:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:09:24,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:09:24,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032200865] [2023-12-02 17:09:24,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-02 17:09:24,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821520230] [2023-12-02 17:09:24,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:24,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:09:24,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:09:24,533 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:09:24,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 17:09:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:09:24,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 17:09:24,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:09:24,622 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 17:09:24,623 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:09:24,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821520230] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:09:24,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:09:24,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:09:24,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32854462] [2023-12-02 17:09:24,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:09:24,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 17:09:24,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:09:24,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 17:09:24,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 17:09:24,659 INFO L87 Difference]: Start difference. First operand has 71 states, 36 states have (on average 1.8333333333333333) internal successors, (66), 64 states have internal predecessors, (66), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 17:09:24,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:09:24,687 INFO L93 Difference]: Finished difference Result 96 states and 98 transitions. [2023-12-02 17:09:24,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 17:09:24,690 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 11 [2023-12-02 17:09:24,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:09:24,697 INFO L225 Difference]: With dead ends: 96 [2023-12-02 17:09:24,697 INFO L226 Difference]: Without dead ends: 68 [2023-12-02 17:09:24,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 17:09:24,702 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:09:24,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:09:24,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-12-02 17:09:24,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-12-02 17:09:24,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 35 states have (on average 1.8) internal successors, (63), 62 states have internal predecessors, (63), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 17:09:24,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2023-12-02 17:09:24,735 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 11 [2023-12-02 17:09:24,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:09:24,736 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2023-12-02 17:09:24,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 17:09:24,737 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2023-12-02 17:09:24,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 17:09:24,738 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:09:24,738 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:09:24,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 17:09:24,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:09:24,939 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-12-02 17:09:24,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:09:24,940 INFO L85 PathProgramCache]: Analyzing trace with hash 587993729, now seen corresponding path program 1 times [2023-12-02 17:09:24,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:09:24,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778199095] [2023-12-02 17:09:24,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:24,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:09:24,957 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:09:24,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [802446607] [2023-12-02 17:09:24,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:24,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:09:24,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:09:24,959 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:09:24,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 17:09:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:09:25,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 17:09:25,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:09:25,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:09:25,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:09:25,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:09:25,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:09:25,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778199095] [2023-12-02 17:09:25,176 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:09:25,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802446607] [2023-12-02 17:09:25,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802446607] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:09:25,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1125791701] [2023-12-02 17:09:25,197 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2023-12-02 17:09:25,197 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:09:25,202 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:09:25,208 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:09:25,209 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:09:25,614 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2023-12-02 17:09:25,743 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:09:26,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1125791701] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:09:26,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 17:09:26,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 4] total 13 [2023-12-02 17:09:26,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457921572] [2023-12-02 17:09:26,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:09:26,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 17:09:26,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:09:26,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 17:09:26,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-12-02 17:09:26,516 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand has 9 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 17:09:27,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:09:27,096 INFO L93 Difference]: Finished difference Result 115 states and 117 transitions. [2023-12-02 17:09:27,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 17:09:27,097 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 11 [2023-12-02 17:09:27,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:09:27,099 INFO L225 Difference]: With dead ends: 115 [2023-12-02 17:09:27,099 INFO L226 Difference]: Without dead ends: 83 [2023-12-02 17:09:27,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-12-02 17:09:27,102 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 265 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 17:09:27,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 15 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 17:09:27,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-12-02 17:09:27,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2023-12-02 17:09:27,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 49 states have (on average 1.5714285714285714) internal successors, (77), 76 states have internal predecessors, (77), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 17:09:27,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 85 transitions. [2023-12-02 17:09:27,121 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 85 transitions. Word has length 11 [2023-12-02 17:09:27,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:09:27,121 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 85 transitions. [2023-12-02 17:09:27,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 17:09:27,122 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 85 transitions. [2023-12-02 17:09:27,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 17:09:27,123 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:09:27,123 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:09:27,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 17:09:27,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:09:27,328 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-12-02 17:09:27,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:09:27,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1297182891, now seen corresponding path program 1 times [2023-12-02 17:09:27,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:09:27,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499588465] [2023-12-02 17:09:27,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:27,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:09:27,347 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:09:27,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1666170394] [2023-12-02 17:09:27,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:27,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:09:27,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:09:27,350 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:09:27,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 17:09:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:09:27,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 17:09:27,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:09:27,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 17:09:27,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:09:27,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:09:27,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499588465] [2023-12-02 17:09:27,459 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:09:27,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666170394] [2023-12-02 17:09:27,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666170394] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:09:27,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:09:27,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:09:27,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443132839] [2023-12-02 17:09:27,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:09:27,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:09:27,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:09:27,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:09:27,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:09:27,463 INFO L87 Difference]: Start difference. First operand 83 states and 85 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 17:09:27,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:09:27,553 INFO L93 Difference]: Finished difference Result 83 states and 85 transitions. [2023-12-02 17:09:27,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:09:27,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2023-12-02 17:09:27,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:09:27,555 INFO L225 Difference]: With dead ends: 83 [2023-12-02 17:09:27,555 INFO L226 Difference]: Without dead ends: 78 [2023-12-02 17:09:27,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:09:27,557 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 33 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:09:27,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 28 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:09:27,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-12-02 17:09:27,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-12-02 17:09:27,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 49 states have (on average 1.469387755102041) internal successors, (72), 71 states have internal predecessors, (72), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 17:09:27,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 80 transitions. [2023-12-02 17:09:27,571 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 80 transitions. Word has length 27 [2023-12-02 17:09:27,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:09:27,571 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 80 transitions. [2023-12-02 17:09:27,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 17:09:27,572 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 80 transitions. [2023-12-02 17:09:27,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 17:09:27,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:09:27,573 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:09:27,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 17:09:27,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:09:27,774 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-12-02 17:09:27,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:09:27,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1557964036, now seen corresponding path program 1 times [2023-12-02 17:09:27,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:09:27,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253919744] [2023-12-02 17:09:27,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:27,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:09:27,790 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:09:27,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [441085687] [2023-12-02 17:09:27,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:27,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:09:27,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:09:27,793 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:09:27,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 17:09:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:09:27,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 17:09:27,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:09:27,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 17:09:27,894 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:09:27,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:09:27,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253919744] [2023-12-02 17:09:27,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:09:27,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441085687] [2023-12-02 17:09:27,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441085687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:09:27,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:09:27,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:09:27,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301131351] [2023-12-02 17:09:27,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:09:27,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:09:27,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:09:27,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:09:27,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:09:27,898 INFO L87 Difference]: Start difference. First operand 78 states and 80 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 17:09:27,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:09:27,981 INFO L93 Difference]: Finished difference Result 78 states and 80 transitions. [2023-12-02 17:09:27,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:09:27,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2023-12-02 17:09:27,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:09:27,983 INFO L225 Difference]: With dead ends: 78 [2023-12-02 17:09:27,983 INFO L226 Difference]: Without dead ends: 76 [2023-12-02 17:09:27,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:09:27,985 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 29 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:09:27,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 30 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:09:27,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-02 17:09:27,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-02 17:09:27,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 69 states have internal predecessors, (70), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 17:09:27,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 78 transitions. [2023-12-02 17:09:27,998 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 78 transitions. Word has length 28 [2023-12-02 17:09:27,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:09:27,998 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 78 transitions. [2023-12-02 17:09:27,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 17:09:27,999 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2023-12-02 17:09:28,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 17:09:28,000 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:09:28,000 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:09:28,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-02 17:09:28,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:09:28,204 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-12-02 17:09:28,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:09:28,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1740145114, now seen corresponding path program 1 times [2023-12-02 17:09:28,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:09:28,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752142922] [2023-12-02 17:09:28,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:28,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:09:28,217 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:09:28,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1395775434] [2023-12-02 17:09:28,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:28,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:09:28,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:09:28,219 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:09:28,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 17:09:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:09:28,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 17:09:28,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:09:28,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 17:09:28,329 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:09:28,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:09:28,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752142922] [2023-12-02 17:09:28,329 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:09:28,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395775434] [2023-12-02 17:09:28,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395775434] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:09:28,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:09:28,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:09:28,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352834600] [2023-12-02 17:09:28,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:09:28,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:09:28,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:09:28,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:09:28,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:09:28,332 INFO L87 Difference]: Start difference. First operand 76 states and 78 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 17:09:28,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:09:28,411 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2023-12-02 17:09:28,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:09:28,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2023-12-02 17:09:28,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:09:28,413 INFO L225 Difference]: With dead ends: 76 [2023-12-02 17:09:28,413 INFO L226 Difference]: Without dead ends: 74 [2023-12-02 17:09:28,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:09:28,415 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 24 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:09:28,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 33 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:09:28,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-12-02 17:09:28,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2023-12-02 17:09:28,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 67 states have internal predecessors, (68), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 17:09:28,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 76 transitions. [2023-12-02 17:09:28,428 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 76 transitions. Word has length 30 [2023-12-02 17:09:28,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:09:28,429 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 76 transitions. [2023-12-02 17:09:28,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 17:09:28,429 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2023-12-02 17:09:28,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 17:09:28,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:09:28,431 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:09:28,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 17:09:28,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:09:28,632 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-12-02 17:09:28,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:09:28,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1890076399, now seen corresponding path program 1 times [2023-12-02 17:09:28,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:09:28,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11807419] [2023-12-02 17:09:28,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:28,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:09:28,647 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:09:28,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1345607789] [2023-12-02 17:09:28,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:28,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:09:28,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:09:28,649 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:09:28,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 17:09:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:09:28,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 17:09:28,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:09:28,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 17:09:28,758 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:09:28,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:09:28,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11807419] [2023-12-02 17:09:28,759 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:09:28,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345607789] [2023-12-02 17:09:28,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345607789] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:09:28,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:09:28,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:09:28,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031789286] [2023-12-02 17:09:28,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:09:28,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:09:28,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:09:28,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:09:28,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:09:28,761 INFO L87 Difference]: Start difference. First operand 74 states and 76 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 17:09:28,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:09:28,860 INFO L93 Difference]: Finished difference Result 74 states and 76 transitions. [2023-12-02 17:09:28,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:09:28,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2023-12-02 17:09:28,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:09:28,862 INFO L225 Difference]: With dead ends: 74 [2023-12-02 17:09:28,862 INFO L226 Difference]: Without dead ends: 72 [2023-12-02 17:09:28,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:09:28,864 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 22 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:09:28,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 35 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:09:28,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-12-02 17:09:28,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2023-12-02 17:09:28,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 49 states have (on average 1.346938775510204) internal successors, (66), 65 states have internal predecessors, (66), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 17:09:28,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2023-12-02 17:09:28,876 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 31 [2023-12-02 17:09:28,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:09:28,876 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2023-12-02 17:09:28,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 17:09:28,877 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2023-12-02 17:09:28,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-02 17:09:28,878 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:09:28,878 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:09:28,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 17:09:29,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:09:29,084 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-12-02 17:09:29,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:09:29,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1537173688, now seen corresponding path program 1 times [2023-12-02 17:09:29,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:09:29,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280828763] [2023-12-02 17:09:29,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:29,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:09:29,098 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:09:29,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [558918336] [2023-12-02 17:09:29,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:29,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:09:29,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:09:29,100 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:09:29,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 17:09:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:09:29,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 17:09:29,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:09:29,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 17:09:29,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:09:29,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:09:29,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280828763] [2023-12-02 17:09:29,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:09:29,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558918336] [2023-12-02 17:09:29,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558918336] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:09:29,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:09:29,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:09:29,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624447702] [2023-12-02 17:09:29,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:09:29,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:09:29,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:09:29,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:09:29,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:09:29,192 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 17:09:29,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:09:29,346 INFO L93 Difference]: Finished difference Result 72 states and 74 transitions. [2023-12-02 17:09:29,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:09:29,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2023-12-02 17:09:29,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:09:29,348 INFO L225 Difference]: With dead ends: 72 [2023-12-02 17:09:29,348 INFO L226 Difference]: Without dead ends: 70 [2023-12-02 17:09:29,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:09:29,349 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 18 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:09:29,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 37 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:09:29,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-12-02 17:09:29,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2023-12-02 17:09:29,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 63 states have internal predecessors, (64), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 17:09:29,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 72 transitions. [2023-12-02 17:09:29,361 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 72 transitions. Word has length 32 [2023-12-02 17:09:29,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:09:29,361 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 72 transitions. [2023-12-02 17:09:29,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 17:09:29,361 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2023-12-02 17:09:29,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-02 17:09:29,363 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:09:29,363 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:09:29,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 17:09:29,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:09:29,568 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-12-02 17:09:29,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:09:29,568 INFO L85 PathProgramCache]: Analyzing trace with hash 244837098, now seen corresponding path program 1 times [2023-12-02 17:09:29,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:09:29,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129773705] [2023-12-02 17:09:29,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:29,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:09:29,580 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:09:29,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1781684799] [2023-12-02 17:09:29,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:29,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:09:29,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:09:29,581 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:09:29,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 17:09:29,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:09:29,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 17:09:29,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:09:29,876 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:09:29,876 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:09:30,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:09:30,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129773705] [2023-12-02 17:09:30,131 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:09:30,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781684799] [2023-12-02 17:09:30,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781684799] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:09:30,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [411819034] [2023-12-02 17:09:30,135 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2023-12-02 17:09:30,135 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:09:30,135 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:09:30,136 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:09:30,136 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:09:32,629 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2023-12-02 17:09:32,637 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2023-12-02 17:09:32,667 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:09:38,953 WARN L293 SmtUtils]: Spent 6.20s on a formula simplification. DAG size of input: 80 DAG size of output: 35 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:09:49,650 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1993#(and (<= 2 |ULTIMATE.start_main_~c~0#1|) (<= 1 |#StackHeapBarrier|) (<= (+ 9223372036854775809 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|)) 0) (exists ((|v_ULTIMATE.start_main_~x~0#1_62| Int) (|v_ULTIMATE.start_main_~y~0#1_41| Int)) (and (= |ULTIMATE.start_main_~x~0#1| (+ (* |v_ULTIMATE.start_main_~x~0#1_62| |ULTIMATE.start_main_~z~0#1|) 1)) (= |ULTIMATE.start_main_~y~0#1| (* |v_ULTIMATE.start_main_~y~0#1_41| |ULTIMATE.start_main_~z~0#1|)) (= (+ |v_ULTIMATE.start_main_~x~0#1_62| (* |v_ULTIMATE.start_main_~y~0#1_41| |ULTIMATE.start_main_~z~0#1|)) (+ (* |v_ULTIMATE.start_main_~x~0#1_62| |ULTIMATE.start_main_~z~0#1|) 1)) (<= 0 (+ (* |v_ULTIMATE.start_main_~x~0#1_62| |ULTIMATE.start_main_~z~0#1|) 9223372036854775808)))) (<= |ULTIMATE.start_main_~z~0#1| 5) (<= |ULTIMATE.start_main_~k~0#1| 5) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= 0 |ULTIMATE.start_main_~z~0#1|))' at error location [2023-12-02 17:09:49,650 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:09:49,650 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:09:49,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-12-02 17:09:49,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857145079] [2023-12-02 17:09:49,651 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-02 17:09:49,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:09:49,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:09:49,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:09:49,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=885, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 17:09:49,652 INFO L87 Difference]: Start difference. First operand 70 states and 72 transitions. Second operand has 6 states, 4 states have (on average 7.0) internal successors, (28), 6 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 17:09:49,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:09:49,799 INFO L93 Difference]: Finished difference Result 74 states and 76 transitions. [2023-12-02 17:09:49,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:09:49,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 7.0) internal successors, (28), 6 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 34 [2023-12-02 17:09:49,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:09:49,800 INFO L225 Difference]: With dead ends: 74 [2023-12-02 17:09:49,800 INFO L226 Difference]: Without dead ends: 73 [2023-12-02 17:09:49,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=171, Invalid=885, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 17:09:49,802 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 40 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:09:49,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 50 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:09:49,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-12-02 17:09:49,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 69. [2023-12-02 17:09:49,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 62 states have internal predecessors, (63), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 17:09:49,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 71 transitions. [2023-12-02 17:09:49,812 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 71 transitions. Word has length 34 [2023-12-02 17:09:49,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:09:49,812 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 71 transitions. [2023-12-02 17:09:49,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 7.0) internal successors, (28), 6 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 17:09:49,813 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2023-12-02 17:09:49,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 17:09:49,814 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:09:49,814 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:09:49,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 17:09:50,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:09:50,015 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-12-02 17:09:50,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:09:50,015 INFO L85 PathProgramCache]: Analyzing trace with hash -999984505, now seen corresponding path program 1 times [2023-12-02 17:09:50,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:09:50,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872478941] [2023-12-02 17:09:50,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:50,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:09:50,027 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:09:50,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [88232555] [2023-12-02 17:09:50,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:50,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:09:50,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:09:50,029 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:09:50,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 17:09:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:09:50,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 17:09:50,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:09:50,265 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:09:50,265 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:09:50,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:09:50,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872478941] [2023-12-02 17:09:50,506 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:09:50,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88232555] [2023-12-02 17:09:50,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88232555] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:09:50,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [106346948] [2023-12-02 17:09:50,509 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2023-12-02 17:09:50,509 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:09:50,510 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:09:50,510 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:09:50,510 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:09:51,906 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2023-12-02 17:09:51,915 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2023-12-02 17:09:51,944 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:10:01,450 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2326#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 5) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~z~0#1| 5) (<= 9223372036854775808 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|)) (<= |ULTIMATE.start_main_~k~0#1| 5) (<= 0 |ULTIMATE.start_main_~z~0#1|))' at error location [2023-12-02 17:10:01,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:10:01,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:10:01,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-12-02 17:10:01,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609701594] [2023-12-02 17:10:01,450 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-02 17:10:01,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:10:01,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:10:01,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:10:01,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=888, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 17:10:01,452 INFO L87 Difference]: Start difference. First operand 69 states and 71 transitions. Second operand has 6 states, 4 states have (on average 7.25) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 17:10:02,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:10:02,253 INFO L93 Difference]: Finished difference Result 118 states and 121 transitions. [2023-12-02 17:10:02,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:10:02,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 7.25) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 35 [2023-12-02 17:10:02,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:10:02,255 INFO L225 Difference]: With dead ends: 118 [2023-12-02 17:10:02,255 INFO L226 Difference]: Without dead ends: 116 [2023-12-02 17:10:02,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=168, Invalid=888, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 17:10:02,256 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 115 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 17:10:02,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 43 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 17:10:02,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-12-02 17:10:02,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 80. [2023-12-02 17:10:02,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 60 states have (on average 1.2333333333333334) internal successors, (74), 73 states have internal predecessors, (74), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 17:10:02,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 82 transitions. [2023-12-02 17:10:02,262 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 82 transitions. Word has length 35 [2023-12-02 17:10:02,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:10:02,262 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 82 transitions. [2023-12-02 17:10:02,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 7.25) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 17:10:02,263 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 82 transitions. [2023-12-02 17:10:02,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 17:10:02,263 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:10:02,264 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:10:02,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-02 17:10:02,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:10:02,464 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-12-02 17:10:02,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:10:02,465 INFO L85 PathProgramCache]: Analyzing trace with hash -645172690, now seen corresponding path program 1 times [2023-12-02 17:10:02,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:10:02,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333038346] [2023-12-02 17:10:02,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:10:02,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:10:02,472 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:10:02,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [177894478] [2023-12-02 17:10:02,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:10:02,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:10:02,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:10:02,474 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:10:02,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 17:10:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:10:02,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 17:10:02,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:10:02,725 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:10:02,725 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:10:03,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:10:03,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333038346] [2023-12-02 17:10:03,395 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:10:03,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177894478] [2023-12-02 17:10:03,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177894478] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:10:03,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1297309204] [2023-12-02 17:10:03,398 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2023-12-02 17:10:03,398 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:10:03,398 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:10:03,399 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:10:03,399 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:10:04,512 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2023-12-02 17:10:04,518 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2023-12-02 17:10:04,542 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:10:19,758 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2783#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 5) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~z~0#1| 5) (<= |ULTIMATE.start_main_~k~0#1| 5) (<= (+ 9223372036854775810 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|)) |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~z~0#1|))' at error location [2023-12-02 17:10:19,758 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:10:19,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:10:19,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-12-02 17:10:19,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173092885] [2023-12-02 17:10:19,759 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-02 17:10:19,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 17:10:19,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:10:19,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 17:10:19,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=1006, Unknown=4, NotChecked=0, Total=1260 [2023-12-02 17:10:19,761 INFO L87 Difference]: Start difference. First operand 80 states and 82 transitions. Second operand has 7 states, 5 states have (on average 6.4) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 17:10:20,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:10:20,185 INFO L93 Difference]: Finished difference Result 80 states and 82 transitions. [2023-12-02 17:10:20,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 17:10:20,185 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.4) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2023-12-02 17:10:20,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:10:20,186 INFO L225 Difference]: With dead ends: 80 [2023-12-02 17:10:20,186 INFO L226 Difference]: Without dead ends: 76 [2023-12-02 17:10:20,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=260, Invalid=1068, Unknown=4, NotChecked=0, Total=1332 [2023-12-02 17:10:20,188 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 107 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:10:20,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 31 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 17:10:20,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-02 17:10:20,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-02 17:10:20,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 60 states have (on average 1.1666666666666667) internal successors, (70), 69 states have internal predecessors, (70), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 17:10:20,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 78 transitions. [2023-12-02 17:10:20,197 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 78 transitions. Word has length 38 [2023-12-02 17:10:20,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:10:20,197 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 78 transitions. [2023-12-02 17:10:20,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.4) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 17:10:20,198 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2023-12-02 17:10:20,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 17:10:20,198 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:10:20,198 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:10:20,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-02 17:10:20,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:10:20,399 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-12-02 17:10:20,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:10:20,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1535662640, now seen corresponding path program 1 times [2023-12-02 17:10:20,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:10:20,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98132179] [2023-12-02 17:10:20,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:10:20,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:10:20,406 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:10:20,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1501754260] [2023-12-02 17:10:20,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:10:20,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:10:20,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:10:20,407 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:10:20,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 17:10:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:10:20,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 17:10:20,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:10:20,607 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:10:20,607 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:10:20,821 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:10:20,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98132179] [2023-12-02 17:10:20,821 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:10:20,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501754260] [2023-12-02 17:10:20,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501754260] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:10:20,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1399306209] [2023-12-02 17:10:20,824 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2023-12-02 17:10:20,824 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:10:20,825 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:10:20,825 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:10:20,825 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:10:21,972 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2023-12-02 17:10:21,978 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2023-12-02 17:10:22,002 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:10:32,857 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3163#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~x~0#1| (+ 9223372036854775809 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|))) (<= |ULTIMATE.start_main_~c~0#1| 5) (<= 1 |#StackHeapBarrier|) (<= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) 9223372036854775809) 0) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~z~0#1| 5) (<= |ULTIMATE.start_main_~k~0#1| 5) (<= (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) (+ 9223372036854775806 |ULTIMATE.start_main_~x~0#1|)) (<= 0 |ULTIMATE.start_main_~z~0#1|))' at error location [2023-12-02 17:10:32,857 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:10:32,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:10:32,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-12-02 17:10:32,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91711730] [2023-12-02 17:10:32,858 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-02 17:10:32,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:10:32,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:10:32,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:10:32,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=882, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 17:10:32,859 INFO L87 Difference]: Start difference. First operand 76 states and 78 transitions. Second operand has 6 states, 4 states have (on average 8.5) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 17:10:33,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:10:33,028 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2023-12-02 17:10:33,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 17:10:33,028 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 8.5) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 40 [2023-12-02 17:10:33,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:10:33,029 INFO L225 Difference]: With dead ends: 76 [2023-12-02 17:10:33,029 INFO L226 Difference]: Without dead ends: 75 [2023-12-02 17:10:33,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=181, Invalid=941, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 17:10:33,030 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 63 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:10:33,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 53 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:10:33,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-12-02 17:10:33,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-12-02 17:10:33,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 60 states have (on average 1.15) internal successors, (69), 68 states have internal predecessors, (69), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 17:10:33,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 77 transitions. [2023-12-02 17:10:33,038 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 77 transitions. Word has length 40 [2023-12-02 17:10:33,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:10:33,039 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 77 transitions. [2023-12-02 17:10:33,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 8.5) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 17:10:33,039 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 77 transitions. [2023-12-02 17:10:33,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 17:10:33,040 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:10:33,040 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:10:33,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-02 17:10:33,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:10:33,241 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-12-02 17:10:33,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:10:33,241 INFO L85 PathProgramCache]: Analyzing trace with hash -360901523, now seen corresponding path program 1 times [2023-12-02 17:10:33,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:10:33,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169812986] [2023-12-02 17:10:33,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:10:33,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:10:33,248 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:10:33,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [800671885] [2023-12-02 17:10:33,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:10:33,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:10:33,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:10:33,249 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:10:33,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 17:10:33,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:10:33,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 17:10:33,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:10:33,443 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:10:33,443 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:10:33,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:10:33,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169812986] [2023-12-02 17:10:33,601 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:10:33,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800671885] [2023-12-02 17:10:33,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800671885] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:10:33,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [110051682] [2023-12-02 17:10:33,604 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2023-12-02 17:10:33,604 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:10:33,604 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:10:33,604 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:10:33,604 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:10:34,671 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2023-12-02 17:10:34,677 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2023-12-02 17:10:34,701 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:10:42,004 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3544#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~x~0#1| (+ 9223372036854775809 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|))) (<= |ULTIMATE.start_main_~c~0#1| 5) (<= 1 |#StackHeapBarrier|) (<= 9223372036854775808 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|)) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~z~0#1| 5) (<= |ULTIMATE.start_main_~k~0#1| 5) (<= (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) (+ 9223372036854775806 |ULTIMATE.start_main_~x~0#1|)) (<= 0 |ULTIMATE.start_main_~z~0#1|))' at error location [2023-12-02 17:10:42,004 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:10:42,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:10:42,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-12-02 17:10:42,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038814853] [2023-12-02 17:10:42,005 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-02 17:10:42,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:10:42,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:10:42,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:10:42,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=884, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 17:10:42,006 INFO L87 Difference]: Start difference. First operand 75 states and 77 transitions. Second operand has 6 states, 4 states have (on average 8.75) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 17:10:42,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:10:42,523 INFO L93 Difference]: Finished difference Result 108 states and 111 transitions. [2023-12-02 17:10:42,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:10:42,524 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 8.75) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 41 [2023-12-02 17:10:42,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:10:42,525 INFO L225 Difference]: With dead ends: 108 [2023-12-02 17:10:42,525 INFO L226 Difference]: Without dead ends: 107 [2023-12-02 17:10:42,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=172, Invalid=884, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 17:10:42,526 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 94 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 17:10:42,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 60 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 17:10:42,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-12-02 17:10:42,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 79. [2023-12-02 17:10:42,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 64 states have (on average 1.140625) internal successors, (73), 72 states have internal predecessors, (73), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 17:10:42,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 81 transitions. [2023-12-02 17:10:42,535 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 81 transitions. Word has length 41 [2023-12-02 17:10:42,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:10:42,535 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 81 transitions. [2023-12-02 17:10:42,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 8.75) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 17:10:42,536 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 81 transitions. [2023-12-02 17:10:42,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 17:10:42,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:10:42,537 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:10:42,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-02 17:10:42,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:10:42,742 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-12-02 17:10:42,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:10:42,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1696954738, now seen corresponding path program 1 times [2023-12-02 17:10:42,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:10:42,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581274672] [2023-12-02 17:10:42,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:10:42,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:10:42,750 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:10:42,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [965470966] [2023-12-02 17:10:42,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:10:42,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:10:42,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:10:42,751 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:10:42,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-02 17:10:42,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:10:42,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 17:10:42,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:10:42,980 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:10:42,980 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:10:43,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:10:43,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581274672] [2023-12-02 17:10:43,196 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:10:43,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965470966] [2023-12-02 17:10:43,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965470966] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:10:43,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [607420226] [2023-12-02 17:10:43,198 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2023-12-02 17:10:43,199 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:10:43,199 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:10:43,199 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:10:43,199 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:10:44,281 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2023-12-02 17:10:44,287 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2023-12-02 17:10:44,313 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:10:57,960 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3968#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= (+ 9223372036854775810 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|)) (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~x~0#1|)) (<= |ULTIMATE.start_main_~x~0#1| (+ 9223372036854775809 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|))) (<= |ULTIMATE.start_main_~c~0#1| 5) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~z~0#1| 5) (<= |ULTIMATE.start_main_~k~0#1| 5) (<= (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) 9223372036854775807) (<= 0 |ULTIMATE.start_main_~z~0#1|))' at error location [2023-12-02 17:10:57,960 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:10:57,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:10:57,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-12-02 17:10:57,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417804509] [2023-12-02 17:10:57,961 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-02 17:10:57,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 17:10:57,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:10:57,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 17:10:57,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1005, Unknown=0, NotChecked=0, Total=1190 [2023-12-02 17:10:57,962 INFO L87 Difference]: Start difference. First operand 79 states and 81 transitions. Second operand has 7 states, 5 states have (on average 7.2) internal successors, (36), 7 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 17:10:58,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:10:58,439 INFO L93 Difference]: Finished difference Result 105 states and 108 transitions. [2023-12-02 17:10:58,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 17:10:58,440 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 7.2) internal successors, (36), 7 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 42 [2023-12-02 17:10:58,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:10:58,440 INFO L225 Difference]: With dead ends: 105 [2023-12-02 17:10:58,441 INFO L226 Difference]: Without dead ends: 103 [2023-12-02 17:10:58,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=185, Invalid=1005, Unknown=0, NotChecked=0, Total=1190 [2023-12-02 17:10:58,442 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 62 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 17:10:58,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 69 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 17:10:58,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-02 17:10:58,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 92. [2023-12-02 17:10:58,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 76 states have (on average 1.144736842105263) internal successors, (87), 84 states have internal predecessors, (87), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 17:10:58,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 97 transitions. [2023-12-02 17:10:58,449 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 97 transitions. Word has length 42 [2023-12-02 17:10:58,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:10:58,449 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 97 transitions. [2023-12-02 17:10:58,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 7.2) internal successors, (36), 7 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 17:10:58,449 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 97 transitions. [2023-12-02 17:10:58,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 17:10:58,450 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:10:58,450 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:10:58,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-12-02 17:10:58,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-02 17:10:58,651 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-12-02 17:10:58,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:10:58,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1065989391, now seen corresponding path program 1 times [2023-12-02 17:10:58,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:10:58,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086003736] [2023-12-02 17:10:58,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:10:58,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:10:58,657 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:10:58,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [165185315] [2023-12-02 17:10:58,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:10:58,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:10:58,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:10:58,658 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:10:58,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-02 17:10:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:10:58,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 17:10:58,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:10:58,866 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:10:58,866 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:11:01,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:11:01,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086003736] [2023-12-02 17:11:01,317 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:11:01,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165185315] [2023-12-02 17:11:01,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165185315] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:11:01,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [326385865] [2023-12-02 17:11:01,319 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2023-12-02 17:11:01,320 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:11:01,320 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:11:01,320 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:11:01,320 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:11:02,394 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2023-12-02 17:11:02,400 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2023-12-02 17:11:02,424 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:11:07,713 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4409#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 5) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~z~0#1| 5) (<= |ULTIMATE.start_main_~k~0#1| 5) (<= 0 (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) 9223372036854775808)) (<= (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) (+ 9223372036854775806 |ULTIMATE.start_main_~x~0#1|)) (<= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) 9223372036854775807 |ULTIMATE.start_main_~x~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|)) (<= 0 |ULTIMATE.start_main_~z~0#1|))' at error location [2023-12-02 17:11:07,713 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:11:07,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:11:07,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-12-02 17:11:07,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723844659] [2023-12-02 17:11:07,713 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-02 17:11:07,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 17:11:07,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:11:07,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 17:11:07,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1003, Unknown=1, NotChecked=0, Total=1190 [2023-12-02 17:11:07,715 INFO L87 Difference]: Start difference. First operand 92 states and 97 transitions. Second operand has 7 states, 5 states have (on average 7.4) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 17:11:07,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:11:07,980 INFO L93 Difference]: Finished difference Result 92 states and 97 transitions. [2023-12-02 17:11:07,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 17:11:07,980 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 7.4) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 43 [2023-12-02 17:11:07,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:11:07,981 INFO L225 Difference]: With dead ends: 92 [2023-12-02 17:11:07,981 INFO L226 Difference]: Without dead ends: 80 [2023-12-02 17:11:07,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=186, Invalid=1003, Unknown=1, NotChecked=0, Total=1190 [2023-12-02 17:11:07,983 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 48 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:11:07,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 58 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 17:11:07,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-12-02 17:11:07,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2023-12-02 17:11:07,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 66 states have (on average 1.106060606060606) internal successors, (73), 72 states have internal predecessors, (73), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 17:11:07,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2023-12-02 17:11:07,989 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 43 [2023-12-02 17:11:07,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:11:07,990 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2023-12-02 17:11:07,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 7.4) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 17:11:07,990 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2023-12-02 17:11:07,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-02 17:11:07,990 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:11:07,991 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:11:07,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-12-02 17:11:08,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-02 17:11:08,191 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-12-02 17:11:08,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:11:08,192 INFO L85 PathProgramCache]: Analyzing trace with hash 215290418, now seen corresponding path program 1 times [2023-12-02 17:11:08,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:11:08,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266159726] [2023-12-02 17:11:08,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:11:08,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:11:08,199 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:11:08,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [907992114] [2023-12-02 17:11:08,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:11:08,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:11:08,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:11:08,200 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:11:08,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-02 17:11:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:11:08,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:11:08,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:11:08,270 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 17:11:08,270 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:11:08,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:11:08,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266159726] [2023-12-02 17:11:08,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:11:08,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907992114] [2023-12-02 17:11:08,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907992114] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:11:08,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:11:08,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:11:08,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195955061] [2023-12-02 17:11:08,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:11:08,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:11:08,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:11:08,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:11:08,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:11:08,273 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-02 17:11:08,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:11:08,294 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2023-12-02 17:11:08,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:11:08,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2023-12-02 17:11:08,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:11:08,295 INFO L225 Difference]: With dead ends: 80 [2023-12-02 17:11:08,295 INFO L226 Difference]: Without dead ends: 79 [2023-12-02 17:11:08,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:11:08,296 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 31 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:11:08,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 69 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:11:08,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-12-02 17:11:08,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2023-12-02 17:11:08,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 66 states have (on average 1.0909090909090908) internal successors, (72), 71 states have internal predecessors, (72), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 17:11:08,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 82 transitions. [2023-12-02 17:11:08,306 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 82 transitions. Word has length 48 [2023-12-02 17:11:08,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:11:08,306 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 82 transitions. [2023-12-02 17:11:08,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-02 17:11:08,306 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 82 transitions. [2023-12-02 17:11:08,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 17:11:08,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:11:08,307 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:11:08,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-12-02 17:11:08,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-02 17:11:08,508 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-12-02 17:11:08,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:11:08,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1915931559, now seen corresponding path program 1 times [2023-12-02 17:11:08,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:11:08,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999156590] [2023-12-02 17:11:08,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:11:08,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:11:08,515 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:11:08,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2114993497] [2023-12-02 17:11:08,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:11:08,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:11:08,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:11:08,516 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:11:08,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-02 17:11:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:11:08,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:11:08,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:11:08,588 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 17:11:08,588 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:11:08,630 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 17:11:08,630 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:11:08,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999156590] [2023-12-02 17:11:08,630 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:11:08,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114993497] [2023-12-02 17:11:08,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114993497] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:11:08,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1885455594] [2023-12-02 17:11:08,632 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2023-12-02 17:11:08,632 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:11:08,633 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:11:08,633 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:11:08,633 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:11:09,695 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2023-12-02 17:11:09,704 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2023-12-02 17:11:09,728 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:11:16,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1885455594] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:11:16,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 17:11:16,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [3, 3] total 29 [2023-12-02 17:11:16,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903063657] [2023-12-02 17:11:16,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:11:16,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-02 17:11:16,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:11:16,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-02 17:11:16,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=708, Unknown=0, NotChecked=0, Total=870 [2023-12-02 17:11:16,954 INFO L87 Difference]: Start difference. First operand 79 states and 82 transitions. Second operand has 26 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 17:11:27,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:11:27,349 INFO L93 Difference]: Finished difference Result 79 states and 82 transitions. [2023-12-02 17:11:27,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-02 17:11:27,350 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 49 [2023-12-02 17:11:27,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:11:27,351 INFO L225 Difference]: With dead ends: 79 [2023-12-02 17:11:27,351 INFO L226 Difference]: Without dead ends: 66 [2023-12-02 17:11:27,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 115 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=346, Invalid=1136, Unknown=0, NotChecked=0, Total=1482 [2023-12-02 17:11:27,352 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 244 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:11:27,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 34 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2023-12-02 17:11:27,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-12-02 17:11:27,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 58. [2023-12-02 17:11:27,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 50 states have (on average 1.04) internal successors, (52), 51 states have internal predecessors, (52), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 17:11:27,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2023-12-02 17:11:27,360 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 49 [2023-12-02 17:11:27,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:11:27,361 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2023-12-02 17:11:27,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 17:11:27,361 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2023-12-02 17:11:27,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 17:11:27,361 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:11:27,361 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:11:27,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-12-02 17:11:27,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-02 17:11:27,562 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-12-02 17:11:27,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:11:27,562 INFO L85 PathProgramCache]: Analyzing trace with hash 2008604656, now seen corresponding path program 2 times [2023-12-02 17:11:27,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:11:27,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310309437] [2023-12-02 17:11:27,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:11:27,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:11:27,570 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:11:27,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [725260723] [2023-12-02 17:11:27,570 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:11:27,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:11:27,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:11:27,571 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:11:27,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-02 17:11:27,615 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-02 17:11:27,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:11:27,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 17:11:27,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:11:28,296 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 17:11:28,296 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:11:28,703 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:11:28,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310309437] [2023-12-02 17:11:28,703 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:11:28,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725260723] [2023-12-02 17:11:28,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725260723] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:11:28,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2015558512] [2023-12-02 17:11:28,705 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2023-12-02 17:11:28,705 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:11:28,705 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:11:28,706 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:11:28,706 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:11:29,756 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2023-12-02 17:11:29,762 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2023-12-02 17:11:29,786 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:11:42,054 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5666#(and (<= 2 |ULTIMATE.start_main_~c~0#1|) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~z~0#1| 5) (<= 9223372036854775808 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|)) (exists ((|v_ULTIMATE.start_main_~x~0#1_111| Int) (|v_ULTIMATE.start_main_~y~0#1_89| Int)) (and (= (+ (* |v_ULTIMATE.start_main_~y~0#1_89| |ULTIMATE.start_main_~z~0#1|) |v_ULTIMATE.start_main_~x~0#1_111|) (+ (* |v_ULTIMATE.start_main_~x~0#1_111| |ULTIMATE.start_main_~z~0#1|) 1)) (= (+ (* |v_ULTIMATE.start_main_~x~0#1_111| |ULTIMATE.start_main_~z~0#1|) 1) |ULTIMATE.start_main_~x~0#1|) (= (* |v_ULTIMATE.start_main_~y~0#1_89| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~y~0#1|) (<= (* |v_ULTIMATE.start_main_~x~0#1_111| |ULTIMATE.start_main_~z~0#1|) 9223372036854775806))) (<= |ULTIMATE.start_main_~k~0#1| 5) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= 0 |ULTIMATE.start_main_~z~0#1|))' at error location [2023-12-02 17:11:42,054 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:11:42,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:11:42,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-12-02 17:11:42,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618113121] [2023-12-02 17:11:42,054 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-02 17:11:42,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 17:11:42,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:11:42,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 17:11:42,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1269, Unknown=0, NotChecked=0, Total=1482 [2023-12-02 17:11:42,056 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand has 11 states, 8 states have (on average 6.125) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 17:11:44,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-02 17:11:44,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:11:44,972 INFO L93 Difference]: Finished difference Result 96 states and 100 transitions. [2023-12-02 17:11:44,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 17:11:44,973 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.125) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 58 [2023-12-02 17:11:44,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:11:44,974 INFO L225 Difference]: With dead ends: 96 [2023-12-02 17:11:44,974 INFO L226 Difference]: Without dead ends: 94 [2023-12-02 17:11:44,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 89 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=232, Invalid=1408, Unknown=0, NotChecked=0, Total=1640 [2023-12-02 17:11:44,975 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 68 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-02 17:11:44,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 77 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 229 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2023-12-02 17:11:44,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-02 17:11:44,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 79. [2023-12-02 17:11:44,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 70 states have (on average 1.0285714285714285) internal successors, (72), 71 states have internal predecessors, (72), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 17:11:44,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 82 transitions. [2023-12-02 17:11:44,988 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 82 transitions. Word has length 58 [2023-12-02 17:11:44,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:11:44,988 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 82 transitions. [2023-12-02 17:11:44,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.125) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 17:11:44,988 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 82 transitions. [2023-12-02 17:11:44,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 17:11:44,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:11:44,989 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:11:44,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-12-02 17:11:45,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-02 17:11:45,190 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-12-02 17:11:45,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:11:45,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1115788185, now seen corresponding path program 3 times [2023-12-02 17:11:45,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:11:45,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361227001] [2023-12-02 17:11:45,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:11:45,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:11:45,198 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:11:45,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1692412367] [2023-12-02 17:11:45,198 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 17:11:45,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:11:45,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:11:45,199 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:11:45,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-02 17:11:45,247 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 17:11:45,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:11:45,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 17:11:45,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:11:55,515 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 17:11:55,515 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:11:55,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:11:55,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361227001] [2023-12-02 17:11:55,723 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:11:55,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692412367] [2023-12-02 17:11:55,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692412367] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:11:55,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [408429774] [2023-12-02 17:11:55,725 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2023-12-02 17:11:55,725 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:11:55,726 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:11:55,726 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:11:55,726 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:11:56,837 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2023-12-02 17:11:56,843 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2023-12-02 17:11:56,867 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:12:30,623 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6187#(and (<= 2 |ULTIMATE.start_main_~c~0#1|) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~z~0#1| 5) (<= 9223372036854775808 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|)) (<= |ULTIMATE.start_main_~k~0#1| 5) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (exists ((|v_ULTIMATE.start_main_~x~0#1_119| Int) (|v_ULTIMATE.start_main_~y~0#1_95| Int)) (and (= (* |v_ULTIMATE.start_main_~y~0#1_95| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~x~0#1| (+ (* |v_ULTIMATE.start_main_~x~0#1_119| |ULTIMATE.start_main_~z~0#1|) 1)) (= (+ (* |v_ULTIMATE.start_main_~y~0#1_95| |ULTIMATE.start_main_~z~0#1|) |v_ULTIMATE.start_main_~x~0#1_119|) (+ (* |v_ULTIMATE.start_main_~x~0#1_119| |ULTIMATE.start_main_~z~0#1|) 1)) (<= (* |v_ULTIMATE.start_main_~x~0#1_119| |ULTIMATE.start_main_~z~0#1|) 9223372036854775806))) (<= 0 |ULTIMATE.start_main_~z~0#1|))' at error location [2023-12-02 17:12:30,623 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:12:30,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:12:30,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-12-02 17:12:30,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024598441] [2023-12-02 17:12:30,624 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-02 17:12:30,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 17:12:30,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:12:30,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 17:12:30,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=1267, Unknown=7, NotChecked=0, Total=1482 [2023-12-02 17:12:30,625 INFO L87 Difference]: Start difference. First operand 79 states and 82 transitions. Second operand has 12 states, 9 states have (on average 7.777777777777778) internal successors, (70), 12 states have internal predecessors, (70), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 17:12:34,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-02 17:12:36,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:12:36,210 INFO L93 Difference]: Finished difference Result 117 states and 122 transitions. [2023-12-02 17:12:36,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 17:12:36,211 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 7.777777777777778) internal successors, (70), 12 states have internal predecessors, (70), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 81 [2023-12-02 17:12:36,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:12:36,212 INFO L225 Difference]: With dead ends: 117 [2023-12-02 17:12:36,212 INFO L226 Difference]: Without dead ends: 115 [2023-12-02 17:12:36,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 133 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 43.3s TimeCoverageRelationStatistics Valid=236, Invalid=1479, Unknown=7, NotChecked=0, Total=1722 [2023-12-02 17:12:36,213 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 68 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 8 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:12:36,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 78 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 230 Invalid, 5 Unknown, 0 Unchecked, 5.4s Time] [2023-12-02 17:12:36,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-02 17:12:36,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 100. [2023-12-02 17:12:36,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 90 states have (on average 1.0222222222222221) internal successors, (92), 91 states have internal predecessors, (92), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-02 17:12:36,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 104 transitions. [2023-12-02 17:12:36,227 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 104 transitions. Word has length 81 [2023-12-02 17:12:36,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:12:36,227 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 104 transitions. [2023-12-02 17:12:36,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 7.777777777777778) internal successors, (70), 12 states have internal predecessors, (70), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 17:12:36,227 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 104 transitions. [2023-12-02 17:12:36,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-02 17:12:36,228 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:12:36,228 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:12:36,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-12-02 17:12:36,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-02 17:12:36,429 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-12-02 17:12:36,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:12:36,429 INFO L85 PathProgramCache]: Analyzing trace with hash -923481584, now seen corresponding path program 4 times [2023-12-02 17:12:36,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:12:36,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060560789] [2023-12-02 17:12:36,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:12:36,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:12:36,437 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:12:36,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1914094923] [2023-12-02 17:12:36,437 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 17:12:36,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:12:36,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:12:36,438 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:12:36,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-02 17:12:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:12:36,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-02 17:12:36,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:12:37,729 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 139 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-02 17:12:37,729 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:12:38,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:12:38,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060560789] [2023-12-02 17:12:38,055 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:12:38,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914094923] [2023-12-02 17:12:38,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914094923] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:12:38,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1373898405] [2023-12-02 17:12:38,056 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2023-12-02 17:12:38,056 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:12:38,056 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:12:38,057 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:12:38,057 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:12:39,165 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2023-12-02 17:12:39,171 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2023-12-02 17:12:39,195 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:12:49,927 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6829#(and (<= 2 |ULTIMATE.start_main_~c~0#1|) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y~0#1_105| Int) (|v_ULTIMATE.start_main_~x~0#1_130| Int)) (and (<= (* |v_ULTIMATE.start_main_~x~0#1_130| |ULTIMATE.start_main_~z~0#1|) 9223372036854775806) (= (+ (* |v_ULTIMATE.start_main_~x~0#1_130| |ULTIMATE.start_main_~z~0#1|) 1) |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~y~0#1| (* |v_ULTIMATE.start_main_~y~0#1_105| |ULTIMATE.start_main_~z~0#1|)) (= (+ (* |v_ULTIMATE.start_main_~x~0#1_130| |ULTIMATE.start_main_~z~0#1|) 1) (+ |v_ULTIMATE.start_main_~x~0#1_130| (* |v_ULTIMATE.start_main_~y~0#1_105| |ULTIMATE.start_main_~z~0#1|))))) (<= |ULTIMATE.start_main_~z~0#1| 5) (<= 9223372036854775808 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|)) (<= |ULTIMATE.start_main_~k~0#1| 5) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= 0 |ULTIMATE.start_main_~z~0#1|))' at error location [2023-12-02 17:12:49,927 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:12:49,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:12:49,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-12-02 17:12:49,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096255087] [2023-12-02 17:12:49,927 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-02 17:12:49,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 17:12:49,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:12:49,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 17:12:49,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=1566, Unknown=0, NotChecked=0, Total=1806 [2023-12-02 17:12:49,929 INFO L87 Difference]: Start difference. First operand 100 states and 104 transitions. Second operand has 15 states, 12 states have (on average 7.416666666666667) internal successors, (89), 15 states have internal predecessors, (89), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-02 17:12:50,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:12:50,830 INFO L93 Difference]: Finished difference Result 138 states and 144 transitions. [2023-12-02 17:12:50,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 17:12:50,831 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 7.416666666666667) internal successors, (89), 15 states have internal predecessors, (89), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Word has length 104 [2023-12-02 17:12:50,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:12:50,832 INFO L225 Difference]: With dead ends: 138 [2023-12-02 17:12:50,832 INFO L226 Difference]: Without dead ends: 136 [2023-12-02 17:12:50,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 173 SyntacticMatches, 6 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=240, Invalid=1566, Unknown=0, NotChecked=0, Total=1806 [2023-12-02 17:12:50,833 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 55 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-02 17:12:50,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 240 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-02 17:12:50,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-12-02 17:12:50,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 121. [2023-12-02 17:12:50,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 110 states have (on average 1.018181818181818) internal successors, (112), 111 states have internal predecessors, (112), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-02 17:12:50,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 126 transitions. [2023-12-02 17:12:50,850 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 126 transitions. Word has length 104 [2023-12-02 17:12:50,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:12:50,851 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 126 transitions. [2023-12-02 17:12:50,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 7.416666666666667) internal successors, (89), 15 states have internal predecessors, (89), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-02 17:12:50,851 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2023-12-02 17:12:50,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-02 17:12:50,852 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:12:50,852 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:12:50,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-12-02 17:12:51,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:12:51,053 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-12-02 17:12:51,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:12:51,053 INFO L85 PathProgramCache]: Analyzing trace with hash 648879687, now seen corresponding path program 5 times [2023-12-02 17:12:51,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:12:51,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731044131] [2023-12-02 17:12:51,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:12:51,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:12:51,061 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:12:51,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1726071077] [2023-12-02 17:12:51,061 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:12:51,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:12:51,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:12:51,062 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:12:51,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-02 17:12:51,284 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-12-02 17:12:51,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:12:51,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 17:12:51,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:12:51,648 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 226 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 17:12:51,648 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:12:51,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:12:51,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731044131] [2023-12-02 17:12:51,649 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:12:51,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726071077] [2023-12-02 17:12:51,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726071077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:12:51,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:12:51,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 17:12:51,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654588155] [2023-12-02 17:12:51,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:12:51,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 17:12:51,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:12:51,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 17:12:51,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-12-02 17:12:51,650 INFO L87 Difference]: Start difference. First operand 121 states and 126 transitions. Second operand has 9 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2023-12-02 17:12:51,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:12:51,723 INFO L93 Difference]: Finished difference Result 131 states and 136 transitions. [2023-12-02 17:12:51,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 17:12:51,723 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) Word has length 127 [2023-12-02 17:12:51,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:12:51,724 INFO L225 Difference]: With dead ends: 131 [2023-12-02 17:12:51,724 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 17:12:51,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-12-02 17:12:51,725 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:12:51,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 295 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:12:51,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 17:12:51,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 17:12:51,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:12:51,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 17:12:51,726 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 127 [2023-12-02 17:12:51,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:12:51,727 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 17:12:51,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2023-12-02 17:12:51,727 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 17:12:51,727 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 17:12:51,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 28 remaining) [2023-12-02 17:12:51,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 28 remaining) [2023-12-02 17:12:51,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2023-12-02 17:12:51,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2023-12-02 17:12:51,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2023-12-02 17:12:51,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2023-12-02 17:12:51,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2023-12-02 17:12:51,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2023-12-02 17:12:51,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2023-12-02 17:12:51,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2023-12-02 17:12:51,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining) [2023-12-02 17:12:51,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2023-12-02 17:12:51,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2023-12-02 17:12:51,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining) [2023-12-02 17:12:51,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 28 remaining) [2023-12-02 17:12:51,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 28 remaining) [2023-12-02 17:12:51,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining) [2023-12-02 17:12:51,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2023-12-02 17:12:51,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 28 remaining) [2023-12-02 17:12:51,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 28 remaining) [2023-12-02 17:12:51,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2023-12-02 17:12:51,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2023-12-02 17:12:51,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 28 remaining) [2023-12-02 17:12:51,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2023-12-02 17:12:51,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2023-12-02 17:12:51,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 28 remaining) [2023-12-02 17:12:51,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2023-12-02 17:12:51,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2023-12-02 17:12:51,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-12-02 17:12:51,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2023-12-02 17:12:51,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 17:12:59,372 WARN L293 SmtUtils]: Spent 6.10s on a formula simplification. DAG size of input: 187 DAG size of output: 118 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-02 17:13:24,529 WARN L293 SmtUtils]: Spent 25.15s on a formula simplification. DAG size of input: 222 DAG size of output: 95 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-02 17:13:24,554 INFO L895 garLoopResultBuilder]: At program point L35-2(lines 35 44) the Hoare annotation is: (let ((.cse19 (select |#memory_int| 1))) (let ((.cse2 (exists ((|v_ULTIMATE.start_main_~x~0#1_57| Int)) (and (<= (+ 1 (* |v_ULTIMATE.start_main_~x~0#1_57| |ULTIMATE.start_main_~z~0#1|)) |ULTIMATE.start_main_~x~0#1|) (<= 1 |v_ULTIMATE.start_main_~x~0#1_57|)))) (.cse10 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) (.cse4 (exists ((|v_ULTIMATE.start_main_~x~0#1_102| Int) (|v_ULTIMATE.start_main_~y~0#1_81| Int)) (let ((.cse21 (* |v_ULTIMATE.start_main_~x~0#1_102| |ULTIMATE.start_main_~z~0#1|))) (let ((.cse22 (* |v_ULTIMATE.start_main_~y~0#1_81| |ULTIMATE.start_main_~z~0#1|)) (.cse20 (+ .cse21 1))) (and (= |ULTIMATE.start_main_~x~0#1| .cse20) (<= .cse21 9223372036854775806) (= .cse22 |ULTIMATE.start_main_~y~0#1|) (<= 0 (+ .cse21 9223372036854775808)) (= (+ |v_ULTIMATE.start_main_~x~0#1_102| .cse22) .cse20)))))) (.cse8 (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|)) (.cse0 (= (select |#length| 3) 12)) (.cse1 (<= 1 |#StackHeapBarrier|)) (.cse3 (= 2 (select |#length| 1))) (.cse5 (= (select |#valid| 3) 1)) (.cse6 (<= |ULTIMATE.start_main_~z~0#1| 5)) (.cse7 (<= |ULTIMATE.start_main_~k~0#1| 5)) (.cse9 (= (select |#valid| 1) 1)) (.cse11 (= (select |#valid| 0) 0)) (.cse12 (= (select |#valid| 2) 1)) (.cse13 (= (select .cse19 0) 48)) (.cse14 (= 10 (select |#length| 2))) (.cse15 (= (select .cse19 1) 0)) (.cse16 (<= 0 |ULTIMATE.start_main_~z~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= 5 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~z~0#1| (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|) 1 .cse10 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|))) .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse0 .cse1 .cse3 .cse5 .cse6 .cse7 (= |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~z~0#1| 1 .cse10)) .cse8 (<= 3 |ULTIMATE.start_main_~c~0#1|) .cse9 (exists ((|v_ULTIMATE.start_main_~y~0#1_96| Int)) (and (= (* |v_ULTIMATE.start_main_~y~0#1_96| |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~y~0#1|) (= (* |v_ULTIMATE.start_main_~y~0#1_96| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~z~0#1|))) .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (exists ((|v_ULTIMATE.start_main_~y~0#1_96| Int)) (and (= (* |v_ULTIMATE.start_main_~y~0#1_96| |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~y~0#1|) (= (* |v_ULTIMATE.start_main_~y~0#1_96| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~z~0#1|))) .cse9 (exists ((|v_ULTIMATE.start_main_~x~0#1_113| Int) (|v_ULTIMATE.start_main_~x~0#1_112| Int) (|v_ULTIMATE.start_main_~x~0#1_114| Int)) (let ((.cse17 (+ (* |v_ULTIMATE.start_main_~x~0#1_112| |ULTIMATE.start_main_~z~0#1|) 1)) (.cse18 (+ (* |v_ULTIMATE.start_main_~x~0#1_113| |ULTIMATE.start_main_~z~0#1|) 1))) (and (<= |v_ULTIMATE.start_main_~x~0#1_113| .cse17) (= (+ |v_ULTIMATE.start_main_~x~0#1_112| |ULTIMATE.start_main_~z~0#1|) .cse17) (<= |v_ULTIMATE.start_main_~x~0#1_112| 1) (<= |ULTIMATE.start_main_~x~0#1| (+ (* |v_ULTIMATE.start_main_~x~0#1_114| |ULTIMATE.start_main_~z~0#1|) 1)) (= (+ |v_ULTIMATE.start_main_~x~0#1_113| .cse10) .cse18) (<= |v_ULTIMATE.start_main_~x~0#1_114| .cse18)))) .cse11 (<= 4 |ULTIMATE.start_main_~c~0#1|) .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse0 (<= 2 |ULTIMATE.start_main_~c~0#1|) .cse1 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (= |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~z~0#1| 1)) .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (and (<= 0 |ULTIMATE.start_main_~k~0#1|) .cse0 .cse1 (= |ULTIMATE.start_main_~c~0#1| 1) .cse3 .cse5 .cse6 (= |ULTIMATE.start_main_~x~0#1| 1) .cse7 (= |ULTIMATE.start_main_~y~0#1| 1) .cse9 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16)))) [2023-12-02 17:13:24,554 INFO L899 garLoopResultBuilder]: For program point L35-3(lines 35 44) no Hoare annotation was computed. [2023-12-02 17:13:24,554 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-12-02 17:13:24,554 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~z~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~z~0#1| 2147483648)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse0 0) 48) (= 10 (select |#length| 2)) (= (select .cse0 1) 0))) [2023-12-02 17:13:24,555 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2023-12-02 17:13:24,555 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-12-02 17:13:24,555 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-12-02 17:13:24,555 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-12-02 17:13:24,555 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2023-12-02 17:13:24,555 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-12-02 17:13:24,555 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-12-02 17:13:24,555 INFO L899 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2023-12-02 17:13:24,555 INFO L899 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2023-12-02 17:13:24,555 INFO L899 garLoopResultBuilder]: For program point L36-2(line 36) no Hoare annotation was computed. [2023-12-02 17:13:24,555 INFO L899 garLoopResultBuilder]: For program point L36-3(line 36) no Hoare annotation was computed. [2023-12-02 17:13:24,555 INFO L899 garLoopResultBuilder]: For program point L36-4(line 36) no Hoare annotation was computed. [2023-12-02 17:13:24,555 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-12-02 17:13:24,555 INFO L899 garLoopResultBuilder]: For program point L36-5(line 36) no Hoare annotation was computed. [2023-12-02 17:13:24,555 INFO L899 garLoopResultBuilder]: For program point L36-6(line 36) no Hoare annotation was computed. [2023-12-02 17:13:24,555 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-12-02 17:13:24,556 INFO L899 garLoopResultBuilder]: For program point L36-7(line 36) no Hoare annotation was computed. [2023-12-02 17:13:24,556 INFO L899 garLoopResultBuilder]: For program point L36-8(line 36) no Hoare annotation was computed. [2023-12-02 17:13:24,556 INFO L899 garLoopResultBuilder]: For program point L36-9(line 36) no Hoare annotation was computed. [2023-12-02 17:13:24,556 INFO L895 garLoopResultBuilder]: At program point L36-10(line 36) the Hoare annotation is: (let ((.cse19 (select |#memory_int| 1))) (let ((.cse17 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) (.cse0 (exists ((|v_ULTIMATE.start_main_~x~0#1_102| Int) (|v_ULTIMATE.start_main_~y~0#1_81| Int)) (let ((.cse22 (* |v_ULTIMATE.start_main_~x~0#1_102| |ULTIMATE.start_main_~z~0#1|))) (let ((.cse21 (* |v_ULTIMATE.start_main_~y~0#1_81| |ULTIMATE.start_main_~z~0#1|)) (.cse20 (+ .cse22 1))) (and (= |ULTIMATE.start_main_~x~0#1| .cse20) (= .cse21 |ULTIMATE.start_main_~y~0#1|) (<= 0 (+ .cse22 9223372036854775808)) (= (+ |v_ULTIMATE.start_main_~x~0#1_102| .cse21) .cse20)))))) (.cse3 (exists ((|v_ULTIMATE.start_main_~x~0#1_57| Int)) (and (<= (+ 1 (* |v_ULTIMATE.start_main_~x~0#1_57| |ULTIMATE.start_main_~z~0#1|)) |ULTIMATE.start_main_~x~0#1|) (<= 1 |v_ULTIMATE.start_main_~x~0#1_57|)))) (.cse6 (<= (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) 9223372036854775806)) (.cse9 (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|)) (.cse1 (= (select |#length| 3) 12)) (.cse2 (<= 1 |#StackHeapBarrier|)) (.cse4 (= 2 (select |#length| 1))) (.cse5 (= (select |#valid| 3) 1)) (.cse7 (<= |ULTIMATE.start_main_~z~0#1| 5)) (.cse8 (<= |ULTIMATE.start_main_~k~0#1| 5)) (.cse10 (= (select |#valid| 1) 1)) (.cse11 (= (select |#valid| 0) 0)) (.cse12 (= (select |#valid| 2) 1)) (.cse13 (= (select .cse19 0) 48)) (.cse14 (= 10 (select |#length| 2))) (.cse15 (= (select .cse19 1) 0)) (.cse16 (<= 0 |ULTIMATE.start_main_~z~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (<= 5 |ULTIMATE.start_main_~c~0#1|) .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~z~0#1| 1 .cse17)) .cse9 (<= 3 |ULTIMATE.start_main_~c~0#1|) .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse0 .cse1 .cse2 (= (+ |ULTIMATE.start_main_~z~0#1| 1 .cse17 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) |ULTIMATE.start_main_~x~0#1|) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (<= 4 |ULTIMATE.start_main_~c~0#1|) .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse0 .cse1 (<= 2 |ULTIMATE.start_main_~c~0#1|) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 (exists ((|v_ULTIMATE.start_main_~x~0#1_112| Int)) (let ((.cse18 (+ (* |v_ULTIMATE.start_main_~x~0#1_112| |ULTIMATE.start_main_~z~0#1|) 1))) (and (<= |ULTIMATE.start_main_~x~0#1| .cse18) (= (+ |v_ULTIMATE.start_main_~x~0#1_112| |ULTIMATE.start_main_~z~0#1|) .cse18) (<= |v_ULTIMATE.start_main_~x~0#1_112| 1)))) .cse16) (and (<= 0 |ULTIMATE.start_main_~k~0#1|) .cse1 .cse2 (= |ULTIMATE.start_main_~c~0#1| 1) .cse4 .cse5 .cse7 (= |ULTIMATE.start_main_~x~0#1| 1) .cse8 (= |ULTIMATE.start_main_~y~0#1| 1) .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16)))) [2023-12-02 17:13:24,556 INFO L899 garLoopResultBuilder]: For program point L36-11(lines 35 44) no Hoare annotation was computed. [2023-12-02 17:13:24,556 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2023-12-02 17:13:24,556 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-12-02 17:13:24,556 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-12-02 17:13:24,556 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2023-12-02 17:13:24,556 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2023-12-02 17:13:24,556 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2023-12-02 17:13:24,556 INFO L899 garLoopResultBuilder]: For program point L45-2(line 45) no Hoare annotation was computed. [2023-12-02 17:13:24,556 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-12-02 17:13:24,557 INFO L899 garLoopResultBuilder]: For program point L45-3(line 45) no Hoare annotation was computed. [2023-12-02 17:13:24,557 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-12-02 17:13:24,557 INFO L899 garLoopResultBuilder]: For program point L45-4(line 45) no Hoare annotation was computed. [2023-12-02 17:13:24,557 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-12-02 17:13:24,557 INFO L899 garLoopResultBuilder]: For program point L45-5(line 45) no Hoare annotation was computed. [2023-12-02 17:13:24,557 INFO L899 garLoopResultBuilder]: For program point L45-6(line 45) no Hoare annotation was computed. [2023-12-02 17:13:24,557 INFO L899 garLoopResultBuilder]: For program point L45-7(line 45) no Hoare annotation was computed. [2023-12-02 17:13:24,557 INFO L899 garLoopResultBuilder]: For program point L45-8(line 45) no Hoare annotation was computed. [2023-12-02 17:13:24,557 INFO L902 garLoopResultBuilder]: At program point L45-9(line 45) the Hoare annotation is: true [2023-12-02 17:13:24,557 INFO L899 garLoopResultBuilder]: For program point L45-10(line 45) no Hoare annotation was computed. [2023-12-02 17:13:24,557 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-12-02 17:13:24,557 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 17:13:24,558 INFO L895 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483648)) (= 2 (select |#length| 1)) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= (select |#valid| 3) 1) (<= |ULTIMATE.start_main_~z~0#1| 5) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse0 0) 48) (= 10 (select |#length| 2)) (= (select .cse0 1) 0) (<= 0 |ULTIMATE.start_main_~z~0#1|))) [2023-12-02 17:13:24,558 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2023-12-02 17:13:24,558 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-12-02 17:13:24,558 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2023-12-02 17:13:24,558 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-12-02 17:13:24,558 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-12-02 17:13:24,558 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2023-12-02 17:13:24,558 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-12-02 17:13:24,558 INFO L899 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed. [2023-12-02 17:13:24,558 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 17:13:24,559 INFO L899 garLoopResultBuilder]: For program point L42-1(line 42) no Hoare annotation was computed. [2023-12-02 17:13:24,559 INFO L899 garLoopResultBuilder]: For program point L42-2(line 42) no Hoare annotation was computed. [2023-12-02 17:13:24,559 INFO L899 garLoopResultBuilder]: For program point L42-3(line 42) no Hoare annotation was computed. [2023-12-02 17:13:24,559 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-12-02 17:13:24,559 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-12-02 17:13:24,559 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-12-02 17:13:24,559 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-12-02 17:13:24,559 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2023-12-02 17:13:24,559 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-12-02 17:13:24,559 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2023-12-02 17:13:24,559 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2023-12-02 17:13:24,560 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-12-02 17:13:24,560 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 13) the Hoare annotation is: true [2023-12-02 17:13:24,560 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 11 13) no Hoare annotation was computed. [2023-12-02 17:13:24,560 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2023-12-02 17:13:24,560 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 20) the Hoare annotation is: true [2023-12-02 17:13:24,563 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:13:24,564 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 17:13:24,577 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-12-02 17:13:24,580 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~x~0#1_57 : int :: 1 + v_ULTIMATE.start_main_~x~0#1_57 * ~z~0 <= ~x~0 && 1 <= v_ULTIMATE.start_main_~x~0#1_57) could not be translated [2023-12-02 17:13:24,580 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-12-02 17:13:24,580 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~x~0#1_102 : int, v_ULTIMATE.start_main_~y~0#1_81 : int :: (((~x~0 == v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 + 1 && v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 <= 9223372036854775806) && v_ULTIMATE.start_main_~y~0#1_81 * ~z~0 == ~y~0) && 0 <= v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 + 9223372036854775808) && v_ULTIMATE.start_main_~x~0#1_102 + v_ULTIMATE.start_main_~y~0#1_81 * ~z~0 == v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 + 1) could not be translated [2023-12-02 17:13:24,580 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-12-02 17:13:24,582 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-12-02 17:13:24,582 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-12-02 17:13:24,582 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-12-02 17:13:24,582 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-12-02 17:13:24,583 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-12-02 17:13:24,583 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-12-02 17:13:24,583 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-12-02 17:13:24,583 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-12-02 17:13:24,583 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-12-02 17:13:24,584 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-12-02 17:13:24,584 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~y~0#1_96 : int :: v_ULTIMATE.start_main_~y~0#1_96 * ~z~0 * ~z~0 == ~y~0 && v_ULTIMATE.start_main_~y~0#1_96 * ~z~0 == ~z~0) could not be translated [2023-12-02 17:13:24,584 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-12-02 17:13:24,584 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-12-02 17:13:24,584 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-12-02 17:13:24,584 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-12-02 17:13:24,585 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-12-02 17:13:24,585 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-12-02 17:13:24,585 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~x~0#1_57 : int :: 1 + v_ULTIMATE.start_main_~x~0#1_57 * ~z~0 <= ~x~0 && 1 <= v_ULTIMATE.start_main_~x~0#1_57) could not be translated [2023-12-02 17:13:24,585 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-12-02 17:13:24,585 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~x~0#1_102 : int, v_ULTIMATE.start_main_~y~0#1_81 : int :: (((~x~0 == v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 + 1 && v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 <= 9223372036854775806) && v_ULTIMATE.start_main_~y~0#1_81 * ~z~0 == ~y~0) && 0 <= v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 + 9223372036854775808) && v_ULTIMATE.start_main_~x~0#1_102 + v_ULTIMATE.start_main_~y~0#1_81 * ~z~0 == v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 + 1) could not be translated [2023-12-02 17:13:24,586 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-12-02 17:13:24,586 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~y~0#1_96 : int :: v_ULTIMATE.start_main_~y~0#1_96 * ~z~0 * ~z~0 * ~z~0 == ~y~0 && v_ULTIMATE.start_main_~y~0#1_96 * ~z~0 == ~z~0) could not be translated [2023-12-02 17:13:24,586 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-12-02 17:13:24,586 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~x~0#1_113 : int, v_ULTIMATE.start_main_~x~0#1_112 : int, v_ULTIMATE.start_main_~x~0#1_114 : int :: ((((v_ULTIMATE.start_main_~x~0#1_113 <= v_ULTIMATE.start_main_~x~0#1_112 * ~z~0 + 1 && v_ULTIMATE.start_main_~x~0#1_112 + ~z~0 == v_ULTIMATE.start_main_~x~0#1_112 * ~z~0 + 1) && v_ULTIMATE.start_main_~x~0#1_112 <= 1) && ~x~0 <= v_ULTIMATE.start_main_~x~0#1_114 * ~z~0 + 1) && v_ULTIMATE.start_main_~x~0#1_113 + ~z~0 * ~z~0 == v_ULTIMATE.start_main_~x~0#1_113 * ~z~0 + 1) && v_ULTIMATE.start_main_~x~0#1_114 <= v_ULTIMATE.start_main_~x~0#1_113 * ~z~0 + 1) could not be translated [2023-12-02 17:13:24,586 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-12-02 17:13:24,587 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-12-02 17:13:24,587 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-12-02 17:13:24,587 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-12-02 17:13:24,587 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-12-02 17:13:24,587 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-12-02 17:13:24,587 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-12-02 17:13:24,588 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~x~0#1_102 : int, v_ULTIMATE.start_main_~y~0#1_81 : int :: (((~x~0 == v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 + 1 && v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 <= 9223372036854775806) && v_ULTIMATE.start_main_~y~0#1_81 * ~z~0 == ~y~0) && 0 <= v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 + 9223372036854775808) && v_ULTIMATE.start_main_~x~0#1_102 + v_ULTIMATE.start_main_~y~0#1_81 * ~z~0 == v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 + 1) could not be translated [2023-12-02 17:13:24,588 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-12-02 17:13:24,588 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-12-02 17:13:24,588 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-12-02 17:13:24,589 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-12-02 17:13:24,589 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-12-02 17:13:24,589 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-12-02 17:13:24,589 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-12-02 17:13:24,589 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-12-02 17:13:24,589 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-12-02 17:13:24,589 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-12-02 17:13:24,590 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-12-02 17:13:24,590 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-12-02 17:13:24,590 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-12-02 17:13:24,590 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-12-02 17:13:24,590 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-12-02 17:13:24,590 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-12-02 17:13:24,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:13:24 BoogieIcfgContainer [2023-12-02 17:13:24,591 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 17:13:24,591 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 17:13:24,591 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 17:13:24,591 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 17:13:24,592 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:09:24" (3/4) ... [2023-12-02 17:13:24,593 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 17:13:24,595 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-12-02 17:13:24,595 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-02 17:13:24,599 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-12-02 17:13:24,599 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-12-02 17:13:24,600 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 17:13:24,600 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 17:13:24,675 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 17:13:24,675 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 17:13:24,675 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 17:13:24,676 INFO L158 Benchmark]: Toolchain (without parser) took 241307.78ms. Allocated memory was 157.3MB in the beginning and 272.6MB in the end (delta: 115.3MB). Free memory was 113.5MB in the beginning and 94.3MB in the end (delta: 19.2MB). Peak memory consumption was 137.3MB. Max. memory is 16.1GB. [2023-12-02 17:13:24,676 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 49.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:13:24,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.36ms. Allocated memory is still 157.3MB. Free memory was 113.5MB in the beginning and 102.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 17:13:24,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.27ms. Allocated memory is still 157.3MB. Free memory was 102.9MB in the beginning and 101.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 17:13:24,677 INFO L158 Benchmark]: Boogie Preprocessor took 28.54ms. Allocated memory is still 157.3MB. Free memory was 101.1MB in the beginning and 99.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 17:13:24,677 INFO L158 Benchmark]: RCFGBuilder took 514.28ms. Allocated memory is still 157.3MB. Free memory was 99.9MB in the beginning and 84.1MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 17:13:24,678 INFO L158 Benchmark]: TraceAbstraction took 240327.58ms. Allocated memory was 157.3MB in the beginning and 272.6MB in the end (delta: 115.3MB). Free memory was 83.4MB in the beginning and 99.5MB in the end (delta: -16.1MB). Peak memory consumption was 123.3MB. Max. memory is 16.1GB. [2023-12-02 17:13:24,678 INFO L158 Benchmark]: Witness Printer took 83.85ms. Allocated memory is still 272.6MB. Free memory was 99.5MB in the beginning and 94.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 17:13:24,680 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 100.7MB. Free memory is still 49.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.36ms. Allocated memory is still 157.3MB. Free memory was 113.5MB in the beginning and 102.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.27ms. Allocated memory is still 157.3MB. Free memory was 102.9MB in the beginning and 101.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.54ms. Allocated memory is still 157.3MB. Free memory was 101.1MB in the beginning and 99.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 514.28ms. Allocated memory is still 157.3MB. Free memory was 99.9MB in the beginning and 84.1MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 240327.58ms. Allocated memory was 157.3MB in the beginning and 272.6MB in the end (delta: 115.3MB). Free memory was 83.4MB in the beginning and 99.5MB in the end (delta: -16.1MB). Peak memory consumption was 123.3MB. Max. memory is 16.1GB. * Witness Printer took 83.85ms. Allocated memory is still 272.6MB. Free memory was 99.5MB in the beginning and 94.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~x~0#1_57 : int :: 1 + v_ULTIMATE.start_main_~x~0#1_57 * ~z~0 <= ~x~0 && 1 <= v_ULTIMATE.start_main_~x~0#1_57) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~x~0#1_102 : int, v_ULTIMATE.start_main_~y~0#1_81 : int :: (((~x~0 == v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 + 1 && v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 <= 9223372036854775806) && v_ULTIMATE.start_main_~y~0#1_81 * ~z~0 == ~y~0) && 0 <= v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 + 9223372036854775808) && v_ULTIMATE.start_main_~x~0#1_102 + v_ULTIMATE.start_main_~y~0#1_81 * ~z~0 == v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 + 1) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~y~0#1_96 : int :: v_ULTIMATE.start_main_~y~0#1_96 * ~z~0 * ~z~0 == ~y~0 && v_ULTIMATE.start_main_~y~0#1_96 * ~z~0 == ~z~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~x~0#1_57 : int :: 1 + v_ULTIMATE.start_main_~x~0#1_57 * ~z~0 <= ~x~0 && 1 <= v_ULTIMATE.start_main_~x~0#1_57) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~x~0#1_102 : int, v_ULTIMATE.start_main_~y~0#1_81 : int :: (((~x~0 == v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 + 1 && v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 <= 9223372036854775806) && v_ULTIMATE.start_main_~y~0#1_81 * ~z~0 == ~y~0) && 0 <= v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 + 9223372036854775808) && v_ULTIMATE.start_main_~x~0#1_102 + v_ULTIMATE.start_main_~y~0#1_81 * ~z~0 == v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 + 1) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~y~0#1_96 : int :: v_ULTIMATE.start_main_~y~0#1_96 * ~z~0 * ~z~0 * ~z~0 == ~y~0 && v_ULTIMATE.start_main_~y~0#1_96 * ~z~0 == ~z~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~x~0#1_113 : int, v_ULTIMATE.start_main_~x~0#1_112 : int, v_ULTIMATE.start_main_~x~0#1_114 : int :: ((((v_ULTIMATE.start_main_~x~0#1_113 <= v_ULTIMATE.start_main_~x~0#1_112 * ~z~0 + 1 && v_ULTIMATE.start_main_~x~0#1_112 + ~z~0 == v_ULTIMATE.start_main_~x~0#1_112 * ~z~0 + 1) && v_ULTIMATE.start_main_~x~0#1_112 <= 1) && ~x~0 <= v_ULTIMATE.start_main_~x~0#1_114 * ~z~0 + 1) && v_ULTIMATE.start_main_~x~0#1_113 + ~z~0 * ~z~0 == v_ULTIMATE.start_main_~x~0#1_113 * ~z~0 + 1) && v_ULTIMATE.start_main_~x~0#1_114 <= v_ULTIMATE.start_main_~x~0#1_113 * ~z~0 + 1) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~x~0#1_102 : int, v_ULTIMATE.start_main_~y~0#1_81 : int :: (((~x~0 == v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 + 1 && v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 <= 9223372036854775806) && v_ULTIMATE.start_main_~y~0#1_81 * ~z~0 == ~y~0) && 0 <= v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 + 9223372036854775808) && v_ULTIMATE.start_main_~x~0#1_102 + v_ULTIMATE.start_main_~y~0#1_81 * ~z~0 == v_ULTIMATE.start_main_~x~0#1_102 * ~z~0 + 1) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated * 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: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: 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 3 procedures, 71 locations, 28 error locations. Started 1 CEGAR loops. OverallTime: 240.2s, OverallIterations: 20, TraceHistogramMax: 6, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 23.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 32.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 1404 SdHoareTripleChecker+Valid, 19.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1386 mSDsluCounter, 1404 SdHoareTripleChecker+Invalid, 19.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 873 mSDsCounter, 110 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3374 IncrementalHoareTripleChecker+Invalid, 3490 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 110 mSolverCounterUnsat, 531 mSDtfsCounter, 3374 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1713 GetRequests, 1283 SyntacticMatches, 21 SemanticMatches, 409 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5275 ImplicationChecksByTransitivity, 160.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=19, InterpolantAutomatonStates: 137, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 20 MinimizatonAttempts, 132 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 15 PreInvPairs, 26 NumberOfFragments, 1300 HoareAnnotationTreeSize, 15 FomulaSimplifications, 13366 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 10546 FormulaSimplificationTreeSizeReductionInter, 31.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 19.5s InterpolantComputationTime, 921 NumberOfCodeBlocks, 921 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 948 ConstructedInterpolants, 171 QuantifiedInterpolants, 9948 SizeOfPredicates, 25 NumberOfNonLiveVariables, 1972 ConjunctsInSsa, 187 ConjunctsInUnsatCore, 22 InterpolantComputations, 8 PerfectInterpolantSequences, 322/645 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: OVERALL_TIME: 1.6s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 5, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 47, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 105, TOOLS_POST_TIME: 0.9s, TOOLS_POST_CALL_APPLICATIONS: 21, TOOLS_POST_CALL_TIME: 0.3s, TOOLS_POST_RETURN_APPLICATIONS: 16, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 142, TOOLS_QUANTIFIERELIM_TIME: 1.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 188, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 22, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 47, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.8s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.8s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 16, CALL_SUMMARIZER_CACHE_MISSES: 3, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1069, DAG_COMPRESSION_RETAINED_NODES: 143, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 28 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((((((((((z <= 5) && (k <= 5)) && (c <= k)) && (5 <= c)) && (x <= ((((z + (((z * z) * z) * z)) + 1) + (z * z)) + ((z * z) * z)))) && (0 <= z)) || ((((((z <= 5) && (k <= 5)) && (x == ((z + 1) + (z * z)))) && (c <= k)) && (3 <= c)) && (0 <= z))) || (((((z <= 5) && (k <= 5)) && (c <= k)) && (4 <= c)) && (0 <= z))) || ((((((2 <= c) && (z <= 5)) && (k <= 5)) && (c <= k)) && (x == (z + 1))) && (0 <= z))) || (((((((0 <= k) && (c == 1)) && (z <= 5)) && (x == 1)) && (k <= 5)) && (y == 1)) && (0 <= z))) RESULT: Ultimate proved your program to be correct! [2023-12-02 17:13:24,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5054576-00f0-4dd8-87c5-2bc2d4cc0760/bin/utaipan-verify-nQ1chXbOIh/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