./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/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_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/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_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/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 5cb4924cbdb465eb5009b33592f9047ad895ad10dbe627600c12529f62c9845d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:16:10,441 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:16:10,511 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 16:16:10,516 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:16:10,517 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:16:10,544 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:16:10,545 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:16:10,545 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:16:10,546 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:16:10,546 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:16:10,547 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:16:10,548 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:16:10,548 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:16:10,549 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:16:10,549 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:16:10,550 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:16:10,550 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:16:10,551 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:16:10,551 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:16:10,552 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:16:10,552 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:16:10,553 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:16:10,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:16:10,555 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:16:10,555 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:16:10,555 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:16:10,556 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:16:10,556 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:16:10,557 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:16:10,557 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:16:10,557 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:16:10,558 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 16:16:10,558 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 16:16:10,559 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:16:10,559 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:16:10,559 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:16:10,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:16:10,560 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:16:10,560 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:16:10,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:16:10,560 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:16:10,561 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:16:10,561 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:16:10,561 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:16:10,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:16:10,561 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:16:10,562 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:16:10,562 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:16:10,562 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:16:10,562 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_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cb4924cbdb465eb5009b33592f9047ad895ad10dbe627600c12529f62c9845d [2023-12-02 16:16:10,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:16:10,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:16:10,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:16:10,799 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:16:10,799 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:16:10,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound50.c [2023-12-02 16:16:13,635 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:16:13,816 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:16:13,816 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound50.c [2023-12-02 16:16:13,825 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/data/d0fca2e28/82fd050cccb54b66b5a83cf29b0f94b0/FLAG88f36ca65 [2023-12-02 16:16:13,841 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/data/d0fca2e28/82fd050cccb54b66b5a83cf29b0f94b0 [2023-12-02 16:16:13,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:16:13,846 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:16:13,847 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:16:13,848 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:16:13,853 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:16:13,854 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:16:13" (1/1) ... [2023-12-02 16:16:13,856 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2012d2c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:16:13, skipping insertion in model container [2023-12-02 16:16:13,856 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:16:13" (1/1) ... [2023-12-02 16:16:13,879 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:16:14,061 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:16:14,074 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:16:14,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:16:14,113 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:16:14,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:16:14 WrapperNode [2023-12-02 16:16:14,114 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:16:14,115 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:16:14,115 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:16:14,115 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:16:14,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:16:14" (1/1) ... [2023-12-02 16:16:14,131 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:16:14" (1/1) ... [2023-12-02 16:16:14,157 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 97 [2023-12-02 16:16:14,158 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:16:14,159 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:16:14,159 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:16:14,159 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:16:14,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:16:14" (1/1) ... [2023-12-02 16:16:14,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:16:14" (1/1) ... [2023-12-02 16:16:14,172 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:16:14" (1/1) ... [2023-12-02 16:16:14,172 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:16:14" (1/1) ... [2023-12-02 16:16:14,176 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:16:14" (1/1) ... [2023-12-02 16:16:14,180 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:16:14" (1/1) ... [2023-12-02 16:16:14,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:16:14" (1/1) ... [2023-12-02 16:16:14,183 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:16:14" (1/1) ... [2023-12-02 16:16:14,185 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:16:14,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:16:14,187 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:16:14,187 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:16:14,188 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:16:14" (1/1) ... [2023-12-02 16:16:14,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:16:14,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:14,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:16:14,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:16:14,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:16:14,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:16:14,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:16:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:16:14,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 16:16:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 16:16:14,338 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:16:14,341 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:16:14,693 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:16:14,735 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:16:14,736 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:16:14,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:16:14 BoogieIcfgContainer [2023-12-02 16:16:14,738 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:16:14,741 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:16:14,741 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:16:14,745 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:16:14,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:16:13" (1/3) ... [2023-12-02 16:16:14,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6f3d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:16:14, skipping insertion in model container [2023-12-02 16:16:14,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:16:14" (2/3) ... [2023-12-02 16:16:14,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6f3d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:16:14, skipping insertion in model container [2023-12-02 16:16:14,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:16:14" (3/3) ... [2023-12-02 16:16:14,748 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_valuebound50.c [2023-12-02 16:16:14,768 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:16:14,768 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2023-12-02 16:16:14,824 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:16:14,832 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;@1406a6de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:16:14,832 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2023-12-02 16:16:14,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 55 states have (on average 1.9454545454545455) internal successors, (107), 105 states have internal predecessors, (107), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-02 16:16:14,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 16:16:14,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:14,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-12-02 16:16:14,842 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-12-02 16:16:14,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:14,847 INFO L85 PathProgramCache]: Analyzing trace with hash 191816, now seen corresponding path program 1 times [2023-12-02 16:16:14,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:14,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552883686] [2023-12-02 16:16:14,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:14,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:15,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:16:15,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:16:15,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552883686] [2023-12-02 16:16:15,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552883686] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:16:15,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:16:15,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 16:16:15,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247713899] [2023-12-02 16:16:15,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:16:15,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:16:15,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:16:15,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:16:15,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:16:15,056 INFO L87 Difference]: Start difference. First operand has 113 states, 55 states have (on average 1.9454545454545455) internal successors, (107), 105 states have internal predecessors, (107), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:16:15,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:16:15,292 INFO L93 Difference]: Finished difference Result 250 states and 280 transitions. [2023-12-02 16:16:15,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:16:15,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-12-02 16:16:15,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:16:15,305 INFO L225 Difference]: With dead ends: 250 [2023-12-02 16:16:15,305 INFO L226 Difference]: Without dead ends: 181 [2023-12-02 16:16:15,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:16:15,312 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 69 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:16:15,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 158 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 16:16:15,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-02 16:16:15,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 146. [2023-12-02 16:16:15,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 90 states have (on average 1.6444444444444444) internal successors, (148), 135 states have internal predecessors, (148), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 16:16:15,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 166 transitions. [2023-12-02 16:16:15,372 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 166 transitions. Word has length 3 [2023-12-02 16:16:15,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:16:15,373 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 166 transitions. [2023-12-02 16:16:15,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:16:15,373 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 166 transitions. [2023-12-02 16:16:15,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 16:16:15,375 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:15,375 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:16:15,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 16:16:15,376 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-12-02 16:16:15,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:15,377 INFO L85 PathProgramCache]: Analyzing trace with hash 13547758, now seen corresponding path program 1 times [2023-12-02 16:16:15,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:15,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957368599] [2023-12-02 16:16:15,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:15,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:15,398 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:16:15,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [612521196] [2023-12-02 16:16:15,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:15,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:15,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:15,419 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:16:15,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 16:16:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:15,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:16:15,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:16:15,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 16:16:15,538 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:16:15,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:16:15,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957368599] [2023-12-02 16:16:15,539 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:16:15,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612521196] [2023-12-02 16:16:15,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612521196] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:16:15,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:16:15,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:16:15,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491148355] [2023-12-02 16:16:15,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:16:15,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:16:15,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:16:15,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:16:15,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:16:15,544 INFO L87 Difference]: Start difference. First operand 146 states and 166 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:16:15,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:16:15,694 INFO L93 Difference]: Finished difference Result 185 states and 194 transitions. [2023-12-02 16:16:15,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:16:15,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 20 [2023-12-02 16:16:15,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:16:15,698 INFO L225 Difference]: With dead ends: 185 [2023-12-02 16:16:15,698 INFO L226 Difference]: Without dead ends: 177 [2023-12-02 16:16:15,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:16:15,700 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 53 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:16:15,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 138 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:16:15,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-12-02 16:16:15,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 157. [2023-12-02 16:16:15,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 100 states have (on average 1.59) internal successors, (159), 145 states have internal predecessors, (159), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-02 16:16:15,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 179 transitions. [2023-12-02 16:16:15,719 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 179 transitions. Word has length 20 [2023-12-02 16:16:15,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:16:15,719 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 179 transitions. [2023-12-02 16:16:15,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:16:15,720 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 179 transitions. [2023-12-02 16:16:15,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 16:16:15,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:15,721 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] [2023-12-02 16:16:15,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:16:15,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-02 16:16:15,924 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-12-02 16:16:15,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:15,925 INFO L85 PathProgramCache]: Analyzing trace with hash 419980574, now seen corresponding path program 1 times [2023-12-02 16:16:15,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:15,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999906706] [2023-12-02 16:16:15,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:15,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:15,942 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:16:15,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1318017652] [2023-12-02 16:16:15,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:15,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:15,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:15,944 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:16:15,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 16:16:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:15,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 16:16:15,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:16:16,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 16:16:16,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:16:16,034 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:16:16,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999906706] [2023-12-02 16:16:16,034 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:16:16,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318017652] [2023-12-02 16:16:16,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318017652] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:16:16,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:16:16,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:16:16,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823113208] [2023-12-02 16:16:16,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:16:16,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:16:16,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:16:16,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:16:16,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:16:16,038 INFO L87 Difference]: Start difference. First operand 157 states and 179 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:16:16,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:16:16,177 INFO L93 Difference]: Finished difference Result 173 states and 190 transitions. [2023-12-02 16:16:16,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:16:16,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-12-02 16:16:16,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:16:16,180 INFO L225 Difference]: With dead ends: 173 [2023-12-02 16:16:16,180 INFO L226 Difference]: Without dead ends: 171 [2023-12-02 16:16:16,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:16:16,182 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 54 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:16:16,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 144 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:16:16,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-12-02 16:16:16,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 157. [2023-12-02 16:16:16,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 100 states have (on average 1.57) internal successors, (157), 145 states have internal predecessors, (157), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-02 16:16:16,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 177 transitions. [2023-12-02 16:16:16,197 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 177 transitions. Word has length 21 [2023-12-02 16:16:16,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:16:16,198 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 177 transitions. [2023-12-02 16:16:16,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:16:16,198 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 177 transitions. [2023-12-02 16:16:16,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 16:16:16,199 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:16,199 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] [2023-12-02 16:16:16,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 16:16:16,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:16,400 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-12-02 16:16:16,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:16,401 INFO L85 PathProgramCache]: Analyzing trace with hash 134495984, now seen corresponding path program 1 times [2023-12-02 16:16:16,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:16,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431611467] [2023-12-02 16:16:16,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:16,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:16,415 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:16:16,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [832603718] [2023-12-02 16:16:16,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:16,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:16,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:16,417 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:16:16,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 16:16:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:16,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 16:16:16,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:16:16,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 16:16:16,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:16:16,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:16:16,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431611467] [2023-12-02 16:16:16,497 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:16:16,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832603718] [2023-12-02 16:16:16,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832603718] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:16:16,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:16:16,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:16:16,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372907465] [2023-12-02 16:16:16,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:16:16,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:16:16,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:16:16,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:16:16,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:16:16,500 INFO L87 Difference]: Start difference. First operand 157 states and 177 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:16:16,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:16:16,598 INFO L93 Difference]: Finished difference Result 179 states and 188 transitions. [2023-12-02 16:16:16,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:16:16,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 22 [2023-12-02 16:16:16,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:16:16,600 INFO L225 Difference]: With dead ends: 179 [2023-12-02 16:16:16,600 INFO L226 Difference]: Without dead ends: 171 [2023-12-02 16:16:16,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:16:16,602 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 45 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:16:16,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 152 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:16:16,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-12-02 16:16:16,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 160. [2023-12-02 16:16:16,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 103 states have (on average 1.5048543689320388) internal successors, (155), 148 states have internal predecessors, (155), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-02 16:16:16,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 175 transitions. [2023-12-02 16:16:16,614 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 175 transitions. Word has length 22 [2023-12-02 16:16:16,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:16:16,615 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 175 transitions. [2023-12-02 16:16:16,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:16:16,615 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 175 transitions. [2023-12-02 16:16:16,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 16:16:16,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:16,616 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] [2023-12-02 16:16:16,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 16:16:16,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:16,820 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-12-02 16:16:16,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:16,821 INFO L85 PathProgramCache]: Analyzing trace with hash 401624306, now seen corresponding path program 1 times [2023-12-02 16:16:16,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:16,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400076819] [2023-12-02 16:16:16,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:16,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:16,832 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:16:16,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [154518140] [2023-12-02 16:16:16,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:16,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:16,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:16,834 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:16:16,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 16:16:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:16,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:16:16,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:16:16,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 16:16:16,942 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:16:16,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:16:16,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400076819] [2023-12-02 16:16:16,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:16:16,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154518140] [2023-12-02 16:16:16,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154518140] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:16:16,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:16:16,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:16:16,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070467524] [2023-12-02 16:16:16,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:16:16,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:16:16,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:16:16,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:16:16,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:16:16,945 INFO L87 Difference]: Start difference. First operand 160 states and 175 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:16:17,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:16:17,091 INFO L93 Difference]: Finished difference Result 171 states and 180 transitions. [2023-12-02 16:16:17,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:16:17,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 24 [2023-12-02 16:16:17,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:16:17,094 INFO L225 Difference]: With dead ends: 171 [2023-12-02 16:16:17,094 INFO L226 Difference]: Without dead ends: 169 [2023-12-02 16:16:17,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 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 16:16:17,095 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 90 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:16:17,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 144 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:16:17,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-12-02 16:16:17,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 160. [2023-12-02 16:16:17,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 103 states have (on average 1.4854368932038835) internal successors, (153), 148 states have internal predecessors, (153), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-02 16:16:17,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 173 transitions. [2023-12-02 16:16:17,106 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 173 transitions. Word has length 24 [2023-12-02 16:16:17,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:16:17,107 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 173 transitions. [2023-12-02 16:16:17,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:16:17,107 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 173 transitions. [2023-12-02 16:16:17,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 16:16:17,108 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:17,108 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 16:16:17,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 16:16:17,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:17,312 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-12-02 16:16:17,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:17,313 INFO L85 PathProgramCache]: Analyzing trace with hash -597425930, now seen corresponding path program 1 times [2023-12-02 16:16:17,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:17,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088194563] [2023-12-02 16:16:17,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:17,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:17,324 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:16:17,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1706395201] [2023-12-02 16:16:17,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:17,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:17,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:17,326 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:16:17,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 16:16:17,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:17,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 16:16:17,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:16:17,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 16:16:17,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:16:17,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:16:17,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088194563] [2023-12-02 16:16:17,530 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:16:17,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706395201] [2023-12-02 16:16:17,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706395201] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:16:17,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:16:17,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:16:17,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462855693] [2023-12-02 16:16:17,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:16:17,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:16:17,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:16:17,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:16:17,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:16:17,532 INFO L87 Difference]: Start difference. First operand 160 states and 173 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:16:17,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:16:17,700 INFO L93 Difference]: Finished difference Result 165 states and 174 transitions. [2023-12-02 16:16:17,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:16:17,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 28 [2023-12-02 16:16:17,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:16:17,702 INFO L225 Difference]: With dead ends: 165 [2023-12-02 16:16:17,702 INFO L226 Difference]: Without dead ends: 137 [2023-12-02 16:16:17,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 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 16:16:17,704 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 41 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:16:17,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 187 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 16:16:17,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-12-02 16:16:17,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2023-12-02 16:16:17,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 82 states have (on average 1.5609756097560976) internal successors, (128), 127 states have internal predecessors, (128), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 16:16:17,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 144 transitions. [2023-12-02 16:16:17,713 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 144 transitions. Word has length 28 [2023-12-02 16:16:17,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:16:17,713 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 144 transitions. [2023-12-02 16:16:17,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:16:17,714 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 144 transitions. [2023-12-02 16:16:17,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 16:16:17,715 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:17,715 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:16:17,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 16:16:17,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 16:16:17,920 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-12-02 16:16:17,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:17,921 INFO L85 PathProgramCache]: Analyzing trace with hash -2122390029, now seen corresponding path program 1 times [2023-12-02 16:16:17,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:17,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875836386] [2023-12-02 16:16:17,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:17,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:17,933 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:16:17,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [473877993] [2023-12-02 16:16:17,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:17,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:17,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:17,935 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:16:17,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 16:16:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:17,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 16:16:17,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:16:18,129 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 16:16:18,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:16:18,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:16:18,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875836386] [2023-12-02 16:16:18,130 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:16:18,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473877993] [2023-12-02 16:16:18,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473877993] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:16:18,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:16:18,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:16:18,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051904913] [2023-12-02 16:16:18,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:16:18,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:16:18,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:16:18,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:16:18,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:16:18,133 INFO L87 Difference]: Start difference. First operand 137 states and 144 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 16:16:18,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:16:18,241 INFO L93 Difference]: Finished difference Result 137 states and 144 transitions. [2023-12-02 16:16:18,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:16:18,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2023-12-02 16:16:18,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:16:18,243 INFO L225 Difference]: With dead ends: 137 [2023-12-02 16:16:18,243 INFO L226 Difference]: Without dead ends: 131 [2023-12-02 16:16:18,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 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 16:16:18,244 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 90 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:16:18,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 101 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:16:18,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-12-02 16:16:18,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2023-12-02 16:16:18,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 82 states have (on average 1.4878048780487805) internal successors, (122), 121 states have internal predecessors, (122), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 16:16:18,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 138 transitions. [2023-12-02 16:16:18,253 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 138 transitions. Word has length 39 [2023-12-02 16:16:18,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:16:18,254 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 138 transitions. [2023-12-02 16:16:18,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 16:16:18,254 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 138 transitions. [2023-12-02 16:16:18,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 16:16:18,256 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:18,256 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:16:18,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 16:16:18,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:18,462 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-12-02 16:16:18,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:18,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1369581347, now seen corresponding path program 1 times [2023-12-02 16:16:18,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:18,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424887921] [2023-12-02 16:16:18,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:18,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:18,472 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:16:18,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [118038402] [2023-12-02 16:16:18,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:18,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:18,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:18,474 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:16:18,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 16:16:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:18,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 16:16:18,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:16:18,679 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 16:16:18,679 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:16:18,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:16:18,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424887921] [2023-12-02 16:16:18,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:16:18,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118038402] [2023-12-02 16:16:18,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118038402] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:16:18,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:16:18,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:16:18,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541712077] [2023-12-02 16:16:18,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:16:18,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:16:18,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:16:18,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:16:18,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:16:18,682 INFO L87 Difference]: Start difference. First operand 131 states and 138 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 16:16:18,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:16:18,768 INFO L93 Difference]: Finished difference Result 134 states and 141 transitions. [2023-12-02 16:16:18,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:16:18,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2023-12-02 16:16:18,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:16:18,770 INFO L225 Difference]: With dead ends: 134 [2023-12-02 16:16:18,770 INFO L226 Difference]: Without dead ends: 133 [2023-12-02 16:16:18,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 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 16:16:18,772 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 0 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:16:18,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:16:18,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-12-02 16:16:18,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2023-12-02 16:16:18,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 84 states have (on average 1.4761904761904763) internal successors, (124), 123 states have internal predecessors, (124), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 16:16:18,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 140 transitions. [2023-12-02 16:16:18,781 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 140 transitions. Word has length 40 [2023-12-02 16:16:18,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:16:18,781 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 140 transitions. [2023-12-02 16:16:18,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 16:16:18,782 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 140 transitions. [2023-12-02 16:16:18,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 16:16:18,783 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:18,783 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:16:18,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-02 16:16:18,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-02 16:16:18,988 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-12-02 16:16:18,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:18,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1907680353, now seen corresponding path program 1 times [2023-12-02 16:16:18,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:18,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52464364] [2023-12-02 16:16:18,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:18,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:19,000 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:16:19,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1255355659] [2023-12-02 16:16:19,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:19,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:19,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:19,001 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:16:19,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 16:16:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:19,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:16:19,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:16:19,106 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 16:16:19,106 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:16:19,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:16:19,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52464364] [2023-12-02 16:16:19,107 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:16:19,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255355659] [2023-12-02 16:16:19,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255355659] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:16:19,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:16:19,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:16:19,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146308572] [2023-12-02 16:16:19,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:16:19,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:16:19,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:16:19,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:16:19,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:16:19,110 INFO L87 Difference]: Start difference. First operand 133 states and 140 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 16:16:19,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:16:19,190 INFO L93 Difference]: Finished difference Result 133 states and 140 transitions. [2023-12-02 16:16:19,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:16:19,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2023-12-02 16:16:19,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:16:19,192 INFO L225 Difference]: With dead ends: 133 [2023-12-02 16:16:19,192 INFO L226 Difference]: Without dead ends: 124 [2023-12-02 16:16:19,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 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 16:16:19,194 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 77 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:16:19,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 110 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:16:19,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-12-02 16:16:19,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2023-12-02 16:16:19,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 84 states have (on average 1.369047619047619) internal successors, (115), 114 states have internal predecessors, (115), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 16:16:19,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 131 transitions. [2023-12-02 16:16:19,202 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 131 transitions. Word has length 42 [2023-12-02 16:16:19,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:16:19,202 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 131 transitions. [2023-12-02 16:16:19,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 16:16:19,203 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 131 transitions. [2023-12-02 16:16:19,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 16:16:19,204 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:19,204 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:16:19,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-02 16:16:19,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-12-02 16:16:19,408 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-12-02 16:16:19,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:19,409 INFO L85 PathProgramCache]: Analyzing trace with hash 991451253, now seen corresponding path program 1 times [2023-12-02 16:16:19,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:19,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895027389] [2023-12-02 16:16:19,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:19,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:19,421 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:16:19,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1326606185] [2023-12-02 16:16:19,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:19,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:19,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:19,423 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:16:19,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 16:16:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:19,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:16:19,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:16:19,553 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 16:16:19,553 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:16:19,638 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 16:16:19,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:16:19,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895027389] [2023-12-02 16:16:19,639 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:16:19,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326606185] [2023-12-02 16:16:19,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326606185] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:16:19,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [45277829] [2023-12-02 16:16:19,661 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2023-12-02 16:16:19,661 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:16:19,665 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:16:19,670 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:16:19,671 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:16:22,636 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2023-12-02 16:16:22,637 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:16:24,096 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4147#(and (<= 4611686018427387904 |ULTIMATE.start_main_~a~0#1|) (<= 1 |#StackHeapBarrier|) (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 50) (<= 1 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807))' at error location [2023-12-02 16:16:24,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:16:24,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:16:24,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-02 16:16:24,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517038804] [2023-12-02 16:16:24,097 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 16:16:24,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:16:24,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:16:24,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:16:24,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-12-02 16:16:24,099 INFO L87 Difference]: Start difference. First operand 124 states and 131 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-02 16:16:24,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:16:24,241 INFO L93 Difference]: Finished difference Result 216 states and 242 transitions. [2023-12-02 16:16:24,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:16:24,242 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2023-12-02 16:16:24,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:16:24,244 INFO L225 Difference]: With dead ends: 216 [2023-12-02 16:16:24,244 INFO L226 Difference]: Without dead ends: 207 [2023-12-02 16:16:24,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 98 SyntacticMatches, 11 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-12-02 16:16:24,245 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 162 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:16:24,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 182 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:16:24,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-12-02 16:16:24,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 115. [2023-12-02 16:16:24,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 84 states have (on average 1.2619047619047619) internal successors, (106), 105 states have internal predecessors, (106), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 16:16:24,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 122 transitions. [2023-12-02 16:16:24,252 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 122 transitions. Word has length 43 [2023-12-02 16:16:24,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:16:24,253 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 122 transitions. [2023-12-02 16:16:24,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-02 16:16:24,253 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 122 transitions. [2023-12-02 16:16:24,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 16:16:24,254 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:24,254 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:16:24,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-02 16:16:24,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:24,455 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-12-02 16:16:24,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:24,455 INFO L85 PathProgramCache]: Analyzing trace with hash 282035564, now seen corresponding path program 1 times [2023-12-02 16:16:24,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:24,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111820735] [2023-12-02 16:16:24,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:24,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:24,466 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:16:24,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [571190385] [2023-12-02 16:16:24,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:24,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:24,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:24,468 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:16:24,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 16:16:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:24,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 16:16:24,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:16:24,571 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 16:16:24,572 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:16:24,692 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 16:16:24,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:16:24,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111820735] [2023-12-02 16:16:24,692 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:16:24,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571190385] [2023-12-02 16:16:24,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571190385] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:16:24,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [126685320] [2023-12-02 16:16:24,696 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2023-12-02 16:16:24,696 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:16:24,696 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:16:24,697 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:16:24,697 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:16:26,445 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2023-12-02 16:16:26,446 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:16:27,739 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4846#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~t~0#1| 9223372036854775806) (<= 1 |ULTIMATE.start_main_~t~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 50) (<= |ULTIMATE.start_main_~a~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= 9223372036854775807 (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) (* 2 |ULTIMATE.start_main_~a~0#1|))) (<= 0 |ULTIMATE.start_main_~n~0#1|))' at error location [2023-12-02 16:16:27,739 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:16:27,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:16:27,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-02 16:16:27,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234865186] [2023-12-02 16:16:27,739 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 16:16:27,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:16:27,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:16:27,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:16:27,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2023-12-02 16:16:27,741 INFO L87 Difference]: Start difference. First operand 115 states and 122 transitions. Second operand has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-02 16:16:27,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:16:27,919 INFO L93 Difference]: Finished difference Result 282 states and 304 transitions. [2023-12-02 16:16:27,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:16:27,920 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 54 [2023-12-02 16:16:27,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:16:27,922 INFO L225 Difference]: With dead ends: 282 [2023-12-02 16:16:27,922 INFO L226 Difference]: Without dead ends: 280 [2023-12-02 16:16:27,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 128 SyntacticMatches, 14 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2023-12-02 16:16:27,923 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 310 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:16:27,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 255 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:16:27,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-12-02 16:16:27,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 192. [2023-12-02 16:16:27,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 155 states have (on average 1.2903225806451613) internal successors, (200), 175 states have internal predecessors, (200), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 16:16:27,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 230 transitions. [2023-12-02 16:16:27,936 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 230 transitions. Word has length 54 [2023-12-02 16:16:27,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:16:27,936 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 230 transitions. [2023-12-02 16:16:27,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-02 16:16:27,937 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 230 transitions. [2023-12-02 16:16:27,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 16:16:27,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:27,938 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1] [2023-12-02 16:16:27,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-02 16:16:28,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:28,148 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-12-02 16:16:28,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:28,149 INFO L85 PathProgramCache]: Analyzing trace with hash -809753737, now seen corresponding path program 1 times [2023-12-02 16:16:28,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:28,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336825244] [2023-12-02 16:16:28,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:28,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:28,158 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:16:28,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [903805600] [2023-12-02 16:16:28,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:28,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:28,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:28,159 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:16:28,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 16:16:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:28,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 16:16:28,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:16:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 16:16:28,267 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:16:28,361 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 16:16:28,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:16:28,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336825244] [2023-12-02 16:16:28,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:16:28,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903805600] [2023-12-02 16:16:28,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903805600] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:16:28,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2013671402] [2023-12-02 16:16:28,364 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2023-12-02 16:16:28,365 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:16:28,365 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:16:28,365 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:16:28,365 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:16:29,966 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2023-12-02 16:16:29,967 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:16:31,243 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5736#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~t~0#1| 9223372036854775806) (<= 1 |ULTIMATE.start_main_~t~0#1|) (= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) 1 (* 2 |ULTIMATE.start_main_~a~0#1|)) |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 50) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= 0 |ULTIMATE.start_main_~n~0#1|) (<= 9223372036854775808 (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|)))' at error location [2023-12-02 16:16:31,243 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:16:31,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:16:31,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-02 16:16:31,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182741293] [2023-12-02 16:16:31,243 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 16:16:31,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:16:31,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:16:31,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:16:31,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2023-12-02 16:16:31,245 INFO L87 Difference]: Start difference. First operand 192 states and 230 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-02 16:16:31,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:16:31,461 INFO L93 Difference]: Finished difference Result 274 states and 303 transitions. [2023-12-02 16:16:31,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:16:31,462 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 59 [2023-12-02 16:16:31,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:16:31,464 INFO L225 Difference]: With dead ends: 274 [2023-12-02 16:16:31,464 INFO L226 Difference]: Without dead ends: 269 [2023-12-02 16:16:31,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 142 SyntacticMatches, 15 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2023-12-02 16:16:31,465 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 245 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:16:31,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 198 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 16:16:31,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-12-02 16:16:31,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 191. [2023-12-02 16:16:31,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 157 states have (on average 1.2229299363057324) internal successors, (192), 173 states have internal predecessors, (192), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-02 16:16:31,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 224 transitions. [2023-12-02 16:16:31,479 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 224 transitions. Word has length 59 [2023-12-02 16:16:31,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:16:31,479 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 224 transitions. [2023-12-02 16:16:31,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-02 16:16:31,480 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 224 transitions. [2023-12-02 16:16:31,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 16:16:31,480 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:31,481 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:16:31,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-02 16:16:31,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:31,681 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-12-02 16:16:31,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:31,682 INFO L85 PathProgramCache]: Analyzing trace with hash -784258247, now seen corresponding path program 1 times [2023-12-02 16:16:31,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:31,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443969976] [2023-12-02 16:16:31,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:31,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:31,688 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:16:31,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1227607447] [2023-12-02 16:16:31,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:31,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:31,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:31,690 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:16:31,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 16:16:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:31,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 16:16:31,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:16:31,825 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 16:16:31,826 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:16:31,914 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 16:16:31,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:16:31,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443969976] [2023-12-02 16:16:31,915 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:16:31,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227607447] [2023-12-02 16:16:31,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227607447] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:16:31,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [15137243] [2023-12-02 16:16:31,918 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2023-12-02 16:16:31,918 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:16:31,918 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:16:31,919 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:16:31,919 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:16:33,284 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2023-12-02 16:16:33,285 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:16:34,637 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6633#(and (<= (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|) 9223372036854775807) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~t~0#1|) (= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) 1 (* 2 |ULTIMATE.start_main_~a~0#1|)) |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 50) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= 2305843009213693952 |ULTIMATE.start_main_~s~0#1|) (<= 0 |ULTIMATE.start_main_~n~0#1|))' at error location [2023-12-02 16:16:34,637 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:16:34,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:16:34,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-02 16:16:34,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528251251] [2023-12-02 16:16:34,637 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 16:16:34,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 16:16:34,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:16:34,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 16:16:34,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2023-12-02 16:16:34,639 INFO L87 Difference]: Start difference. First operand 191 states and 224 transitions. Second operand has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-02 16:16:34,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:16:34,831 INFO L93 Difference]: Finished difference Result 223 states and 256 transitions. [2023-12-02 16:16:34,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 16:16:34,832 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 61 [2023-12-02 16:16:34,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:16:34,833 INFO L225 Difference]: With dead ends: 223 [2023-12-02 16:16:34,833 INFO L226 Difference]: Without dead ends: 214 [2023-12-02 16:16:34,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 146 SyntacticMatches, 15 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2023-12-02 16:16:34,835 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 158 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:16:34,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 172 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 16:16:34,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-12-02 16:16:34,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 184. [2023-12-02 16:16:34,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 157 states have (on average 1.1210191082802548) internal successors, (176), 166 states have internal predecessors, (176), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-02 16:16:34,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 208 transitions. [2023-12-02 16:16:34,844 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 208 transitions. Word has length 61 [2023-12-02 16:16:34,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:16:34,845 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 208 transitions. [2023-12-02 16:16:34,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-02 16:16:34,845 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 208 transitions. [2023-12-02 16:16:34,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 16:16:34,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:34,846 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:16:34,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-02 16:16:35,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:35,047 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-12-02 16:16:35,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:35,047 INFO L85 PathProgramCache]: Analyzing trace with hash -2052896005, now seen corresponding path program 1 times [2023-12-02 16:16:35,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:35,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582354010] [2023-12-02 16:16:35,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:35,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:35,055 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:16:35,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1657387257] [2023-12-02 16:16:35,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:35,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:35,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:35,057 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:16:35,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-02 16:16:35,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:35,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 16:16:35,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:16:35,245 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 16:16:35,246 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:16:35,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:16:35,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582354010] [2023-12-02 16:16:35,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:16:35,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657387257] [2023-12-02 16:16:35,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657387257] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:16:35,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:16:35,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:16:35,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299060845] [2023-12-02 16:16:35,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:16:35,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:16:35,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:16:35,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:16:35,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:16:35,248 INFO L87 Difference]: Start difference. First operand 184 states and 208 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 16:16:35,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:16:35,325 INFO L93 Difference]: Finished difference Result 184 states and 208 transitions. [2023-12-02 16:16:35,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:16:35,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 63 [2023-12-02 16:16:35,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:16:35,326 INFO L225 Difference]: With dead ends: 184 [2023-12-02 16:16:35,326 INFO L226 Difference]: Without dead ends: 154 [2023-12-02 16:16:35,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:16:35,327 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 133 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:16:35,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 86 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:16:35,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-12-02 16:16:35,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2023-12-02 16:16:35,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 135 states have (on average 1.037037037037037) internal successors, (140), 138 states have internal predecessors, (140), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 16:16:35,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 168 transitions. [2023-12-02 16:16:35,339 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 168 transitions. Word has length 63 [2023-12-02 16:16:35,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:16:35,339 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 168 transitions. [2023-12-02 16:16:35,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 16:16:35,340 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 168 transitions. [2023-12-02 16:16:35,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-02 16:16:35,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:35,341 INFO L195 NwaCegarLoop]: trace histogram [9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2023-12-02 16:16:35,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-12-02 16:16:35,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:35,543 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-12-02 16:16:35,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:35,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1534972093, now seen corresponding path program 1 times [2023-12-02 16:16:35,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:35,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472345190] [2023-12-02 16:16:35,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:35,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:35,581 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:16:35,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1794664852] [2023-12-02 16:16:35,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:35,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:35,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:35,584 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:16:35,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-02 16:16:35,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:16:35,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 16:16:35,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:16:35,940 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-02 16:16:35,940 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:16:36,128 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-02 16:16:36,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:16:36,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472345190] [2023-12-02 16:16:36,129 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:16:36,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794664852] [2023-12-02 16:16:36,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794664852] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:16:36,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [536663609] [2023-12-02 16:16:36,131 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2023-12-02 16:16:36,131 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:16:36,132 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:16:36,132 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:16:36,132 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:16:37,654 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2023-12-02 16:16:37,655 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:16:40,514 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8392#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~t~0#1| 9223372036854775807) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= 9223372036854775808 (+ |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~t~0#1|)) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 50) (<= 1 |ULTIMATE.start_main_~n~0#1|))' at error location [2023-12-02 16:16:40,515 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:16:40,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:16:40,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-12-02 16:16:40,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854102690] [2023-12-02 16:16:40,515 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 16:16:40,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 16:16:40,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:16:40,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 16:16:40,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=611, Unknown=0, NotChecked=0, Total=756 [2023-12-02 16:16:40,517 INFO L87 Difference]: Start difference. First operand 154 states and 168 transitions. Second operand has 14 states, 13 states have (on average 14.076923076923077) internal successors, (183), 14 states have internal predecessors, (183), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-12-02 16:16:40,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:16:40,866 INFO L93 Difference]: Finished difference Result 246 states and 269 transitions. [2023-12-02 16:16:40,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 16:16:40,866 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 14.076923076923077) internal successors, (183), 14 states have internal predecessors, (183), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 118 [2023-12-02 16:16:40,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:16:40,868 INFO L225 Difference]: With dead ends: 246 [2023-12-02 16:16:40,868 INFO L226 Difference]: Without dead ends: 245 [2023-12-02 16:16:40,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 293 SyntacticMatches, 33 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 910 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=259, Invalid=931, Unknown=0, NotChecked=0, Total=1190 [2023-12-02 16:16:40,870 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 15 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:16:40,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 189 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 16:16:40,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2023-12-02 16:16:40,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 238. [2023-12-02 16:16:40,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 212 states have (on average 1.0518867924528301) internal successors, (223), 215 states have internal predecessors, (223), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-02 16:16:40,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 265 transitions. [2023-12-02 16:16:40,883 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 265 transitions. Word has length 118 [2023-12-02 16:16:40,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:16:40,884 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 265 transitions. [2023-12-02 16:16:40,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 14.076923076923077) internal successors, (183), 14 states have internal predecessors, (183), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-12-02 16:16:40,884 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 265 transitions. [2023-12-02 16:16:40,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-02 16:16:40,885 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:40,885 INFO L195 NwaCegarLoop]: trace histogram [11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2023-12-02 16:16:40,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-12-02 16:16:41,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-02 16:16:41,086 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-12-02 16:16:41,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:41,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1718296743, now seen corresponding path program 2 times [2023-12-02 16:16:41,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:41,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975842913] [2023-12-02 16:16:41,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:41,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:41,095 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:16:41,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1961726699] [2023-12-02 16:16:41,095 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 16:16:41,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:41,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:41,097 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:16:41,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-02 16:16:41,140 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-02 16:16:41,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:16:41,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 16:16:41,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:16:43,035 WARN L876 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~a~0#1| Int)) (let ((.cse0 (* 2 |ULTIMATE.start_main_~a~0#1|))) (and (<= |c_ULTIMATE.start_main_~s~0#1| (+ 51 .cse0)) (<= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) .cse0) 9223372036854775806)))) is different from true [2023-12-02 16:16:43,066 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 9 proven. 49 refuted. 0 times theorem prover too weak. 187 trivial. 15 not checked. [2023-12-02 16:16:43,067 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:16:43,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:16:43,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975842913] [2023-12-02 16:16:43,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:16:43,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961726699] [2023-12-02 16:16:43,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961726699] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:16:43,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1318670260] [2023-12-02 16:16:43,448 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2023-12-02 16:16:43,448 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:16:43,449 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:16:43,449 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:16:43,449 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:16:45,147 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2023-12-02 16:16:45,148 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:16:47,938 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9476#(and (<= (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|) 9223372036854775807) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~t~0#1|) (= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) 1 (* 2 |ULTIMATE.start_main_~a~0#1|)) |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 50) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= 2305843009213693952 |ULTIMATE.start_main_~s~0#1|) (<= 0 |ULTIMATE.start_main_~n~0#1|))' at error location [2023-12-02 16:16:47,939 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:16:47,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:16:47,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-12-02 16:16:47,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054486683] [2023-12-02 16:16:47,939 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-02 16:16:47,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 16:16:47,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:16:47,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 16:16:47,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=520, Unknown=1, NotChecked=48, Total=702 [2023-12-02 16:16:47,941 INFO L87 Difference]: Start difference. First operand 238 states and 265 transitions. Second operand has 8 states, 6 states have (on average 9.166666666666666) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-02 16:16:48,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:16:48,134 INFO L93 Difference]: Finished difference Result 238 states and 265 transitions. [2023-12-02 16:16:48,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 16:16:48,134 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.166666666666666) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 139 [2023-12-02 16:16:48,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:16:48,136 INFO L225 Difference]: With dead ends: 238 [2023-12-02 16:16:48,137 INFO L226 Difference]: Without dead ends: 237 [2023-12-02 16:16:48,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 244 SyntacticMatches, 38 SemanticMatches, 29 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 841 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=178, Invalid=695, Unknown=1, NotChecked=56, Total=930 [2023-12-02 16:16:48,138 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 112 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 61 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:16:48,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 23 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 109 Invalid, 0 Unknown, 61 Unchecked, 0.1s Time] [2023-12-02 16:16:48,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-12-02 16:16:48,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2023-12-02 16:16:48,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 212 states have (on average 1.0330188679245282) internal successors, (219), 214 states have internal predecessors, (219), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-02 16:16:48,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 261 transitions. [2023-12-02 16:16:48,159 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 261 transitions. Word has length 139 [2023-12-02 16:16:48,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:16:48,159 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 261 transitions. [2023-12-02 16:16:48,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.166666666666666) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-02 16:16:48,159 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 261 transitions. [2023-12-02 16:16:48,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-02 16:16:48,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:16:48,161 INFO L195 NwaCegarLoop]: trace histogram [13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2023-12-02 16:16:48,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-12-02 16:16:48,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-02 16:16:48,362 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-12-02 16:16:48,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:16:48,362 INFO L85 PathProgramCache]: Analyzing trace with hash -715374123, now seen corresponding path program 2 times [2023-12-02 16:16:48,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:16:48,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273511883] [2023-12-02 16:16:48,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:16:48,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:16:48,373 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:16:48,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [193739694] [2023-12-02 16:16:48,374 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 16:16:48,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:16:48,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:16:48,375 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:16:48,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-02 16:16:48,453 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-02 16:16:48,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:16:48,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 16:16:48,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:16:49,110 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 115 proven. 66 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2023-12-02 16:16:49,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:17:02,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:17:02,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273511883] [2023-12-02 16:17:02,875 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:17:02,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193739694] [2023-12-02 16:17:02,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193739694] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:17:02,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [842426160] [2023-12-02 16:17:02,877 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2023-12-02 16:17:02,877 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:17:02,878 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:17:02,878 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:17:02,878 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:17:04,338 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2023-12-02 16:17:04,339 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:17:08,567 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10747#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~t~0#1| 9223372036854775806) (<= 1 |ULTIMATE.start_main_~t~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 50) (<= |ULTIMATE.start_main_~a~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= 9223372036854775807 (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) (* 2 |ULTIMATE.start_main_~a~0#1|))) (<= 0 |ULTIMATE.start_main_~n~0#1|))' at error location [2023-12-02 16:17:08,568 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:17:08,568 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:17:08,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-12-02 16:17:08,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347612380] [2023-12-02 16:17:08,568 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-02 16:17:08,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 16:17:08,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:17:08,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 16:17:08,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=964, Unknown=1, NotChecked=0, Total=1260 [2023-12-02 16:17:08,570 INFO L87 Difference]: Start difference. First operand 237 states and 261 transitions. Second operand has 11 states, 9 states have (on average 9.0) internal successors, (81), 10 states have internal predecessors, (81), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-02 16:17:09,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:17:09,339 INFO L93 Difference]: Finished difference Result 238 states and 262 transitions. [2023-12-02 16:17:09,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 16:17:09,340 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 9.0) internal successors, (81), 10 states have internal predecessors, (81), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 171 [2023-12-02 16:17:09,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:17:09,340 INFO L225 Difference]: With dead ends: 238 [2023-12-02 16:17:09,340 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 16:17:09,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 321 SyntacticMatches, 47 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1875 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=440, Invalid=1365, Unknown=1, NotChecked=0, Total=1806 [2023-12-02 16:17:09,342 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 146 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 16:17:09,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 38 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 16:17:09,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 16:17:09,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 16:17:09,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:17:09,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 16:17:09,344 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 171 [2023-12-02 16:17:09,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:17:09,344 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 16:17:09,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 9.0) internal successors, (81), 10 states have internal predecessors, (81), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-02 16:17:09,344 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 16:17:09,344 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 16:17:09,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 50 remaining) [2023-12-02 16:17:09,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 50 remaining) [2023-12-02 16:17:09,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 50 remaining) [2023-12-02 16:17:09,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 50 remaining) [2023-12-02 16:17:09,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 50 remaining) [2023-12-02 16:17:09,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 50 remaining) [2023-12-02 16:17:09,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 50 remaining) [2023-12-02 16:17:09,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 50 remaining) [2023-12-02 16:17:09,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 50 remaining) [2023-12-02 16:17:09,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 50 remaining) [2023-12-02 16:17:09,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 50 remaining) [2023-12-02 16:17:09,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 50 remaining) [2023-12-02 16:17:09,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 50 remaining) [2023-12-02 16:17:09,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 50 remaining) [2023-12-02 16:17:09,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 50 remaining) [2023-12-02 16:17:09,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 50 remaining) [2023-12-02 16:17:09,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 50 remaining) [2023-12-02 16:17:09,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 50 remaining) [2023-12-02 16:17:09,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 50 remaining) [2023-12-02 16:17:09,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 50 remaining) [2023-12-02 16:17:09,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 50 remaining) [2023-12-02 16:17:09,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 50 remaining) [2023-12-02 16:17:09,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 50 remaining) [2023-12-02 16:17:09,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 50 remaining) [2023-12-02 16:17:09,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 50 remaining) [2023-12-02 16:17:09,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 50 remaining) [2023-12-02 16:17:09,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 50 remaining) [2023-12-02 16:17:09,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 50 remaining) [2023-12-02 16:17:09,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 50 remaining) [2023-12-02 16:17:09,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 50 remaining) [2023-12-02 16:17:09,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 50 remaining) [2023-12-02 16:17:09,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 50 remaining) [2023-12-02 16:17:09,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 50 remaining) [2023-12-02 16:17:09,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 50 remaining) [2023-12-02 16:17:09,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 50 remaining) [2023-12-02 16:17:09,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 50 remaining) [2023-12-02 16:17:09,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 50 remaining) [2023-12-02 16:17:09,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 50 remaining) [2023-12-02 16:17:09,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 50 remaining) [2023-12-02 16:17:09,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 50 remaining) [2023-12-02 16:17:09,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 50 remaining) [2023-12-02 16:17:09,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 50 remaining) [2023-12-02 16:17:09,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 50 remaining) [2023-12-02 16:17:09,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 50 remaining) [2023-12-02 16:17:09,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 50 remaining) [2023-12-02 16:17:09,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 50 remaining) [2023-12-02 16:17:09,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 50 remaining) [2023-12-02 16:17:09,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 50 remaining) [2023-12-02 16:17:09,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 50 remaining) [2023-12-02 16:17:09,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 50 remaining) [2023-12-02 16:17:09,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-02 16:17:09,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-02 16:17:09,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 16:17:12,907 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-12-02 16:17:12,907 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,907 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-12-02 16:17:12,907 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-12-02 16:17:12,907 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,907 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-12-02 16:17:12,907 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2023-12-02 16:17:12,907 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2023-12-02 16:17:12,907 INFO L899 garLoopResultBuilder]: For program point L44-2(line 44) no Hoare annotation was computed. [2023-12-02 16:17:12,907 INFO L895 garLoopResultBuilder]: At program point L44-3(line 44) the Hoare annotation is: (or (and (= |ULTIMATE.start_main_~t~0#1| 1) (= |ULTIMATE.start_main_~a~0#1| 0) (= |ULTIMATE.start_main_~s~0#1| 1)) (and (<= (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|) 9223372036854775807) (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) (* 2 |ULTIMATE.start_main_~a~0#1|)) 9223372036854775806) (<= |ULTIMATE.start_main_~s~0#1| 2305843009213693951))) [2023-12-02 16:17:12,908 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-12-02 16:17:12,908 INFO L899 garLoopResultBuilder]: For program point L44-4(line 44) no Hoare annotation was computed. [2023-12-02 16:17:12,908 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,908 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-12-02 16:17:12,908 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,908 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,908 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-12-02 16:17:12,908 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2023-12-02 16:17:12,908 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2023-12-02 16:17:12,908 INFO L899 garLoopResultBuilder]: For program point L45-2(line 45) no Hoare annotation was computed. [2023-12-02 16:17:12,908 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-12-02 16:17:12,908 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-12-02 16:17:12,909 INFO L899 garLoopResultBuilder]: For program point L45-3(line 45) no Hoare annotation was computed. [2023-12-02 16:17:12,909 INFO L899 garLoopResultBuilder]: For program point L45-4(line 45) no Hoare annotation was computed. [2023-12-02 16:17:12,909 INFO L895 garLoopResultBuilder]: At program point L45-5(line 45) the Hoare annotation is: (or (and (<= (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|) 9223372036854775807) (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) (* 2 |ULTIMATE.start_main_~a~0#1|)) 9223372036854775806) (<= |ULTIMATE.start_main_~s~0#1| 2305843009213693951)) (and (= |ULTIMATE.start_main_~t~0#1| 1) (= |ULTIMATE.start_main_~s~0#1| 1))) [2023-12-02 16:17:12,909 INFO L899 garLoopResultBuilder]: For program point L45-6(line 45) no Hoare annotation was computed. [2023-12-02 16:17:12,909 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-12-02 16:17:12,909 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,909 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,909 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-12-02 16:17:12,909 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-12-02 16:17:12,910 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,910 INFO L899 garLoopResultBuilder]: For program point L46-1(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,910 INFO L899 garLoopResultBuilder]: For program point L46-2(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,910 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-12-02 16:17:12,910 INFO L899 garLoopResultBuilder]: For program point L46-3(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,910 INFO L899 garLoopResultBuilder]: For program point L46-4(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,910 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 16:17:12,910 INFO L899 garLoopResultBuilder]: For program point L46-5(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,910 INFO L899 garLoopResultBuilder]: For program point L46-6(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,911 INFO L899 garLoopResultBuilder]: For program point L46-7(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,911 INFO L899 garLoopResultBuilder]: For program point L46-8(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,911 INFO L899 garLoopResultBuilder]: For program point L46-9(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,911 INFO L899 garLoopResultBuilder]: For program point L46-10(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,911 INFO L902 garLoopResultBuilder]: At program point L46-11(line 46) the Hoare annotation is: true [2023-12-02 16:17:12,911 INFO L899 garLoopResultBuilder]: For program point L46-12(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,911 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,911 INFO L895 garLoopResultBuilder]: At program point L30-2(lines 30 42) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~n~0#1| 50))) (or (and (= |ULTIMATE.start_main_~t~0#1| 1) .cse0 (= |ULTIMATE.start_main_~a~0#1| 0) (<= 0 |ULTIMATE.start_main_~n~0#1|) (= |ULTIMATE.start_main_~s~0#1| 1)) (let ((.cse1 (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|))) (and (= (mod (+ .cse1 (* 2 |ULTIMATE.start_main_~t~0#1|) 1) 4) 0) (<= (div (+ .cse1 (* (- 2) |ULTIMATE.start_main_~t~0#1|) 1) 4) 50) (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~s~0#1| (+ |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~t~0#1|)) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) .cse0 (<= |ULTIMATE.start_main_~a~0#1| 4611686018427387903))))) [2023-12-02 16:17:12,912 INFO L899 garLoopResultBuilder]: For program point L30-3(lines 30 42) no Hoare annotation was computed. [2023-12-02 16:17:12,912 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,912 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-12-02 16:17:12,912 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,912 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,912 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2023-12-02 16:17:12,912 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2023-12-02 16:17:12,912 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,913 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2023-12-02 16:17:12,913 INFO L899 garLoopResultBuilder]: For program point L31-1(line 31) no Hoare annotation was computed. [2023-12-02 16:17:12,913 INFO L899 garLoopResultBuilder]: For program point L31-2(line 31) no Hoare annotation was computed. [2023-12-02 16:17:12,913 INFO L899 garLoopResultBuilder]: For program point L31-3(line 31) no Hoare annotation was computed. [2023-12-02 16:17:12,913 INFO L895 garLoopResultBuilder]: At program point L31-4(line 31) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~n~0#1| 50))) (or (and (= |ULTIMATE.start_main_~t~0#1| 1) .cse0 (= |ULTIMATE.start_main_~a~0#1| 0) (<= 0 |ULTIMATE.start_main_~n~0#1|) (= |ULTIMATE.start_main_~s~0#1| 1)) (let ((.cse1 (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|))) (and (= (mod (+ .cse1 (* 2 |ULTIMATE.start_main_~t~0#1|) 1) 4) 0) (<= (div (+ .cse1 (* (- 2) |ULTIMATE.start_main_~t~0#1|) 1) 4) 50) (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~s~0#1| (+ |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~t~0#1|)) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) .cse0 (<= |ULTIMATE.start_main_~a~0#1| 4611686018427387903))))) [2023-12-02 16:17:12,913 INFO L899 garLoopResultBuilder]: For program point L31-5(line 31) no Hoare annotation was computed. [2023-12-02 16:17:12,913 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,913 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-12-02 16:17:12,914 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-12-02 16:17:12,914 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,914 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2023-12-02 16:17:12,914 INFO L899 garLoopResultBuilder]: For program point L40-1(line 40) no Hoare annotation was computed. [2023-12-02 16:17:12,914 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2023-12-02 16:17:12,914 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2023-12-02 16:17:12,914 INFO L899 garLoopResultBuilder]: For program point L32-2(line 32) no Hoare annotation was computed. [2023-12-02 16:17:12,914 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-12-02 16:17:12,914 INFO L899 garLoopResultBuilder]: For program point L32-3(line 32) no Hoare annotation was computed. [2023-12-02 16:17:12,915 INFO L899 garLoopResultBuilder]: For program point L32-4(line 32) no Hoare annotation was computed. [2023-12-02 16:17:12,915 INFO L895 garLoopResultBuilder]: At program point L32-5(line 32) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~n~0#1| 50))) (or (and (= |ULTIMATE.start_main_~t~0#1| 1) .cse0 (= |ULTIMATE.start_main_~a~0#1| 0) (<= 0 |ULTIMATE.start_main_~n~0#1|) (= |ULTIMATE.start_main_~s~0#1| 1)) (let ((.cse1 (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|))) (and (= (mod (+ .cse1 (* 2 |ULTIMATE.start_main_~t~0#1|) 1) 4) 0) (<= (div (+ .cse1 (* (- 2) |ULTIMATE.start_main_~t~0#1|) 1) 4) 50) (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~s~0#1| (+ |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~t~0#1|)) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) .cse0 (<= |ULTIMATE.start_main_~s~0#1| (+ 51 (* 2 |ULTIMATE.start_main_~a~0#1|))) (<= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) 50))))) [2023-12-02 16:17:12,915 INFO L899 garLoopResultBuilder]: For program point L32-6(line 32) no Hoare annotation was computed. [2023-12-02 16:17:12,915 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-12-02 16:17:12,915 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,915 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,915 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-12-02 16:17:12,916 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-12-02 16:17:12,916 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,916 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-12-02 16:17:12,916 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,916 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,916 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 16:17:12,916 INFO L899 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,916 INFO L899 garLoopResultBuilder]: For program point L33-2(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,916 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,917 INFO L899 garLoopResultBuilder]: For program point L33-3(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,917 INFO L899 garLoopResultBuilder]: For program point L33-4(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,917 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-12-02 16:17:12,917 INFO L899 garLoopResultBuilder]: For program point L33-5(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,917 INFO L899 garLoopResultBuilder]: For program point L33-6(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,917 INFO L899 garLoopResultBuilder]: For program point L33-7(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,917 INFO L899 garLoopResultBuilder]: For program point L33-8(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,917 INFO L899 garLoopResultBuilder]: For program point L33-9(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,917 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-12-02 16:17:12,917 INFO L899 garLoopResultBuilder]: For program point L33-10(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,918 INFO L895 garLoopResultBuilder]: At program point L33-11(line 33) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~n~0#1| 50))) (or (and (= |ULTIMATE.start_main_~t~0#1| 1) .cse0 (= |ULTIMATE.start_main_~a~0#1| 0) (<= 0 |ULTIMATE.start_main_~n~0#1|) (= |ULTIMATE.start_main_~s~0#1| 1)) (let ((.cse1 (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|))) (and (= (mod (+ .cse1 (* 2 |ULTIMATE.start_main_~t~0#1|) 1) 4) 0) (<= (div (+ .cse1 (* (- 2) |ULTIMATE.start_main_~t~0#1|) 1) 4) 50) (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~s~0#1| (+ |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~t~0#1|)) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) .cse0 (<= |ULTIMATE.start_main_~s~0#1| (+ 51 (* 2 |ULTIMATE.start_main_~a~0#1|))) (<= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) 50))))) [2023-12-02 16:17:12,918 INFO L899 garLoopResultBuilder]: For program point L33-12(lines 30 42) no Hoare annotation was computed. [2023-12-02 16:17:12,918 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,918 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,918 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,918 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-12-02 16:17:12,918 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-12-02 16:17:12,919 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-12-02 16:17:12,919 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-12-02 16:17:12,919 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-12-02 16:17:12,919 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-12-02 16:17:12,919 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-12-02 16:17:12,919 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 11 17) no Hoare annotation was computed. [2023-12-02 16:17:12,919 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 17) the Hoare annotation is: true [2023-12-02 16:17:12,922 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:17:12,924 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:17:12,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:17:12 BoogieIcfgContainer [2023-12-02 16:17:12,937 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:17:12,937 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:17:12,937 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:17:12,937 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:17:12,938 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:16:14" (3/4) ... [2023-12-02 16:17:12,940 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 16:17:12,943 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-02 16:17:12,949 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-12-02 16:17:12,949 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-12-02 16:17:12,949 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 16:17:12,950 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 16:17:13,047 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 16:17:13,048 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 16:17:13,048 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:17:13,049 INFO L158 Benchmark]: Toolchain (without parser) took 59203.33ms. Allocated memory was 157.3MB in the beginning and 293.6MB in the end (delta: 136.3MB). Free memory was 118.9MB in the beginning and 181.7MB in the end (delta: -62.9MB). Peak memory consumption was 75.4MB. Max. memory is 16.1GB. [2023-12-02 16:17:13,049 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 157.3MB. Free memory is still 99.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:17:13,050 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.70ms. Allocated memory is still 157.3MB. Free memory was 118.9MB in the beginning and 107.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 16:17:13,050 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.30ms. Allocated memory is still 157.3MB. Free memory was 107.9MB in the beginning and 106.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:17:13,051 INFO L158 Benchmark]: Boogie Preprocessor took 26.63ms. Allocated memory is still 157.3MB. Free memory was 106.3MB in the beginning and 105.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:17:13,051 INFO L158 Benchmark]: RCFGBuilder took 551.38ms. Allocated memory is still 157.3MB. Free memory was 105.1MB in the beginning and 85.3MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 16:17:13,052 INFO L158 Benchmark]: TraceAbstraction took 58195.77ms. Allocated memory was 157.3MB in the beginning and 293.6MB in the end (delta: 136.3MB). Free memory was 84.9MB in the beginning and 188.0MB in the end (delta: -103.1MB). Peak memory consumption was 138.8MB. Max. memory is 16.1GB. [2023-12-02 16:17:13,052 INFO L158 Benchmark]: Witness Printer took 111.22ms. Allocated memory is still 293.6MB. Free memory was 188.0MB in the beginning and 181.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 16:17:13,054 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 157.3MB. Free memory is still 99.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.70ms. Allocated memory is still 157.3MB. Free memory was 118.9MB in the beginning and 107.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.30ms. Allocated memory is still 157.3MB. Free memory was 107.9MB in the beginning and 106.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.63ms. Allocated memory is still 157.3MB. Free memory was 106.3MB in the beginning and 105.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 551.38ms. Allocated memory is still 157.3MB. Free memory was 105.1MB in the beginning and 85.3MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 58195.77ms. Allocated memory was 157.3MB in the beginning and 293.6MB in the end (delta: 136.3MB). Free memory was 84.9MB in the beginning and 188.0MB in the end (delta: -103.1MB). Peak memory consumption was 138.8MB. Max. memory is 16.1GB. * Witness Printer took 111.22ms. Allocated memory is still 293.6MB. Free memory was 188.0MB in the beginning and 181.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: 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: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: 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: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: 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 2 procedures, 113 locations, 50 error locations. Started 1 CEGAR loops. OverallTime: 58.1s, OverallIterations: 17, TraceHistogramMax: 13, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1863 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1800 mSDsluCounter, 2415 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 61 IncrementalHoareTripleChecker+Unchecked, 1382 mSDsCounter, 230 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1950 IncrementalHoareTripleChecker+Invalid, 2241 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 230 mSolverCounterUnsat, 1033 mSDtfsCounter, 1950 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2017 GetRequests, 1645 SyntacticMatches, 173 SemanticMatches, 199 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4512 ImplicationChecksByTransitivity, 26.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=238occurred in iteration=15, InterpolantAutomatonStates: 93, 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, 17 MinimizatonAttempts, 384 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 37 PreInvPairs, 67 NumberOfFragments, 353 HoareAnnotationTreeSize, 37 FomulaSimplifications, 1646 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 8 FomulaSimplificationsInter, 3234 FormulaSimplificationTreeSizeReductionInter, 3.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 18.8s InterpolantComputationTime, 947 NumberOfCodeBlocks, 734 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1260 ConstructedInterpolants, 5 QuantifiedInterpolants, 7277 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1558 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 22 InterpolantComputations, 10 PerfectInterpolantSequences, 861/1283 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 50 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((t == 1) && (n <= 50)) && (a == 0)) && (0 <= n)) && (s == 1)) || ((((((((((((t * t) + (2 * t)) + 1) % 4) == 0) && (((((t * t) + (-2 * t)) + 1) / 4) <= 50)) && ((t + 1) <= s)) && (s <= (n + t))) && (3 <= t)) && (1 <= a)) && (n <= 50)) && (a <= 4611686018427387903))) RESULT: Ultimate proved your program to be correct! [2023-12-02 16:17:13,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5e0963-ee1c-4d0f-a537-c3c6f5dc31e4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE