./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-regression/test22-1.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_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/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_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test22-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/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_5050d306-478b-491b-9f7f-9e99b60c20a3/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 e1ce1c36cc17bb5fac8e93fbe54fbc2a77334d62ad40c06c722f9da96af2516f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:50:47,647 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:50:47,710 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 12:50:47,715 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:50:47,715 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:50:47,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:50:47,739 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:50:47,739 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:50:47,740 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:50:47,740 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:50:47,741 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:50:47,741 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:50:47,742 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:50:47,743 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:50:47,743 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:50:47,743 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:50:47,744 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:50:47,745 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:50:47,745 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:50:47,746 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:50:47,746 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:50:47,747 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:50:47,748 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:50:47,748 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:50:47,749 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:50:47,749 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:50:47,750 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:50:47,750 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:50:47,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:50:47,751 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:50:47,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:50:47,752 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 12:50:47,752 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 12:50:47,752 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:50:47,752 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:50:47,753 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:50:47,753 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:50:47,753 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:50:47,753 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:50:47,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:50:47,754 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:50:47,754 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:50:47,754 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:50:47,754 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:50:47,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:50:47,755 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:50:47,755 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:50:47,755 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:50:47,755 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:50:47,755 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_5050d306-478b-491b-9f7f-9e99b60c20a3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1ce1c36cc17bb5fac8e93fbe54fbc2a77334d62ad40c06c722f9da96af2516f [2023-12-02 12:50:47,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:50:47,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:50:47,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:50:47,998 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:50:47,998 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:50:47,999 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-regression/test22-1.c [2023-12-02 12:50:50,748 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:50:50,929 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:50:50,929 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/sv-benchmarks/c/ldv-regression/test22-1.c [2023-12-02 12:50:50,937 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/data/478ca52e2/bbcadaa305a34e2d978964d74ff79d64/FLAGb0d53bc87 [2023-12-02 12:50:50,952 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/data/478ca52e2/bbcadaa305a34e2d978964d74ff79d64 [2023-12-02 12:50:50,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:50:50,956 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:50:50,957 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:50:50,957 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:50:50,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:50:50,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:50:50" (1/1) ... [2023-12-02 12:50:50,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef5c954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:50, skipping insertion in model container [2023-12-02 12:50:50,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:50:50" (1/1) ... [2023-12-02 12:50:50,986 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:50:51,141 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:50:51,150 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:50:51,167 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:50:51,186 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:50:51,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:51 WrapperNode [2023-12-02 12:50:51,186 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:50:51,188 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:50:51,188 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:50:51,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:50:51,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:51" (1/1) ... [2023-12-02 12:50:51,203 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:51" (1/1) ... [2023-12-02 12:50:51,222 INFO L138 Inliner]: procedures = 16, calls = 27, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 95 [2023-12-02 12:50:51,222 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:50:51,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:50:51,223 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:50:51,223 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:50:51,230 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:51" (1/1) ... [2023-12-02 12:50:51,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:51" (1/1) ... [2023-12-02 12:50:51,233 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:51" (1/1) ... [2023-12-02 12:50:51,233 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:51" (1/1) ... [2023-12-02 12:50:51,239 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:51" (1/1) ... [2023-12-02 12:50:51,243 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:51" (1/1) ... [2023-12-02 12:50:51,244 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:51" (1/1) ... [2023-12-02 12:50:51,245 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:51" (1/1) ... [2023-12-02 12:50:51,247 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:50:51,248 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:50:51,248 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:50:51,249 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:50:51,249 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:51" (1/1) ... [2023-12-02 12:50:51,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:50:51,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:50:51,277 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:50:51,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:50:51,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:50:51,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:50:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 12:50:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2023-12-02 12:50:51,310 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2023-12-02 12:50:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:50:51,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:50:51,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 12:50:51,380 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:50:51,381 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:50:51,535 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:50:51,594 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:50:51,594 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 12:50:51,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:50:51 BoogieIcfgContainer [2023-12-02 12:50:51,596 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:50:51,599 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:50:51,599 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:50:51,602 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:50:51,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:50:50" (1/3) ... [2023-12-02 12:50:51,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a245b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:50:51, skipping insertion in model container [2023-12-02 12:50:51,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:51" (2/3) ... [2023-12-02 12:50:51,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a245b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:50:51, skipping insertion in model container [2023-12-02 12:50:51,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:50:51" (3/3) ... [2023-12-02 12:50:51,605 INFO L112 eAbstractionObserver]: Analyzing ICFG test22-1.c [2023-12-02 12:50:51,623 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:50:51,623 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-02 12:50:51,671 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:50:51,678 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;@2c495ff4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:50:51,678 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-02 12:50:51,682 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 16 states have (on average 1.5) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 12:50:51,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 12:50:51,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:50:51,691 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:50:51,691 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 12:50:51,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:50:51,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1974937296, now seen corresponding path program 1 times [2023-12-02 12:50:51,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:50:51,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770529645] [2023-12-02 12:50:51,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:50:51,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:50:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:50:52,151 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 12:50:52,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:50:52,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770529645] [2023-12-02 12:50:52,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770529645] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:50:52,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:50:52,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:50:52,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047085944] [2023-12-02 12:50:52,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:50:52,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 12:50:52,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:50:52,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 12:50:52,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 12:50:52,185 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.5) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 12:50:52,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:50:52,252 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2023-12-02 12:50:52,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 12:50:52,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 15 [2023-12-02 12:50:52,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:50:52,260 INFO L225 Difference]: With dead ends: 32 [2023-12-02 12:50:52,260 INFO L226 Difference]: Without dead ends: 19 [2023-12-02 12:50:52,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:50:52,266 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 15 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:50:52,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 42 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:50:52,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-12-02 12:50:52,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-12-02 12:50:52,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 12:50:52,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2023-12-02 12:50:52,296 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 15 [2023-12-02 12:50:52,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:50:52,298 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2023-12-02 12:50:52,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 12:50:52,298 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2023-12-02 12:50:52,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 12:50:52,299 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:50:52,300 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:50:52,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 12:50:52,300 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 12:50:52,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:50:52,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1093514087, now seen corresponding path program 1 times [2023-12-02 12:50:52,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:50:52,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882846237] [2023-12-02 12:50:52,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:50:52,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:50:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:50:52,996 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 12:50:52,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:50:52,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882846237] [2023-12-02 12:50:52,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882846237] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:50:52,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059070925] [2023-12-02 12:50:52,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:50:52,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:50:52,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:50:52,999 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:50:53,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 12:50:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:50:53,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 12:50:53,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:50:53,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:50:53,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 1 [2023-12-02 12:50:53,188 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 12:50:54,153 INFO L349 Elim1Store]: treesize reduction 29, result has 49.1 percent of original size [2023-12-02 12:50:54,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 67 [2023-12-02 12:50:54,339 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 12:50:54,339 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:50:54,747 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 12:50:54,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059070925] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:50:54,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [135766233] [2023-12-02 12:50:54,766 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2023-12-02 12:50:54,766 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:50:54,769 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:50:54,774 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:50:54,775 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:50:57,119 INFO L197 IcfgInterpreter]: Interpreting procedure get_dummy with input of size 15 for LOIs [2023-12-02 12:50:57,128 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:51:02,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [135766233] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:51:02,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 12:51:02,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9, 7, 7] total 31 [2023-12-02 12:51:02,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612417303] [2023-12-02 12:51:02,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:51:02,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 12:51:02,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:51:02,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 12:51:02,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2023-12-02 12:51:02,096 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 12:51:02,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:51:02,650 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2023-12-02 12:51:02,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 12:51:02,651 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 16 [2023-12-02 12:51:02,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:51:02,651 INFO L225 Difference]: With dead ends: 19 [2023-12-02 12:51:02,652 INFO L226 Difference]: Without dead ends: 18 [2023-12-02 12:51:02,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=202, Invalid=854, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 12:51:02,653 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 16 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 12:51:02,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 29 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 12:51:02,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-12-02 12:51:02,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-12-02 12:51:02,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 12:51:02,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2023-12-02 12:51:02,661 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 16 [2023-12-02 12:51:02,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:51:02,661 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2023-12-02 12:51:02,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 12:51:02,662 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2023-12-02 12:51:02,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 12:51:02,663 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:51:02,663 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:51:02,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 12:51:02,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:51:02,864 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 12:51:02,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:51:02,864 INFO L85 PathProgramCache]: Analyzing trace with hash -448714601, now seen corresponding path program 1 times [2023-12-02 12:51:02,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:51:02,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200517199] [2023-12-02 12:51:02,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:51:02,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:51:02,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:51:02,907 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 12:51:02,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:51:02,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200517199] [2023-12-02 12:51:02,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200517199] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:51:02,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:51:02,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:51:02,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181863796] [2023-12-02 12:51:02,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:51:02,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 12:51:02,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:51:02,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 12:51:02,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 12:51:02,910 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 12:51:02,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:51:02,941 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2023-12-02 12:51:02,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 12:51:02,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 19 [2023-12-02 12:51:02,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:51:02,942 INFO L225 Difference]: With dead ends: 18 [2023-12-02 12:51:02,943 INFO L226 Difference]: Without dead ends: 17 [2023-12-02 12:51:02,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:51:02,944 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:51:02,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 28 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:51:02,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-12-02 12:51:02,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-12-02 12:51:02,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 12:51:02,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2023-12-02 12:51:02,952 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 19 [2023-12-02 12:51:02,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:51:02,952 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2023-12-02 12:51:02,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 12:51:02,953 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2023-12-02 12:51:02,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 12:51:02,954 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:51:02,954 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:51:02,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 12:51:02,954 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 12:51:02,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:51:02,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1025250674, now seen corresponding path program 1 times [2023-12-02 12:51:02,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:51:02,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811226529] [2023-12-02 12:51:02,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:51:02,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:51:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:51:03,412 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 12:51:03,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:51:03,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811226529] [2023-12-02 12:51:03,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811226529] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:51:03,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563641190] [2023-12-02 12:51:03,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:51:03,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:51:03,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:51:03,414 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:51:03,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 12:51:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:51:03,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-02 12:51:03,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:51:03,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 12:51:03,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 1 [2023-12-02 12:51:04,163 INFO L349 Elim1Store]: treesize reduction 29, result has 49.1 percent of original size [2023-12-02 12:51:04,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 61 [2023-12-02 12:51:04,252 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 12:51:04,252 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:51:04,752 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 12:51:04,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563641190] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:51:04,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1466331434] [2023-12-02 12:51:04,755 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2023-12-02 12:51:04,755 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:51:04,755 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:51:04,755 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:51:04,756 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:51:06,939 INFO L197 IcfgInterpreter]: Interpreting procedure get_dummy with input of size 15 for LOIs [2023-12-02 12:51:06,944 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:51:13,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1466331434] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:51:13,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 12:51:13,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12, 8, 10] total 40 [2023-12-02 12:51:13,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171168836] [2023-12-02 12:51:13,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:51:13,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 12:51:13,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:51:13,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 12:51:13,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=1343, Unknown=0, NotChecked=0, Total=1640 [2023-12-02 12:51:13,951 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 14 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 12:51:14,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:51:14,503 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2023-12-02 12:51:14,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 12:51:14,503 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 20 [2023-12-02 12:51:14,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:51:14,504 INFO L225 Difference]: With dead ends: 22 [2023-12-02 12:51:14,504 INFO L226 Difference]: Without dead ends: 21 [2023-12-02 12:51:14,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 26 SyntacticMatches, 6 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=311, Invalid=1411, Unknown=0, NotChecked=0, Total=1722 [2023-12-02 12:51:14,506 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 14 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 12:51:14,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 9 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 12:51:14,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-12-02 12:51:14,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-12-02 12:51:14,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 12:51:14,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2023-12-02 12:51:14,515 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 20 [2023-12-02 12:51:14,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:51:14,516 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2023-12-02 12:51:14,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 12:51:14,516 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2023-12-02 12:51:14,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 12:51:14,517 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:51:14,517 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:51:14,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 12:51:14,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:51:14,718 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 12:51:14,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:51:14,718 INFO L85 PathProgramCache]: Analyzing trace with hash -2100545995, now seen corresponding path program 1 times [2023-12-02 12:51:14,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:51:14,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030652705] [2023-12-02 12:51:14,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:51:14,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:51:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:51:15,174 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 12:51:15,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:51:15,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030652705] [2023-12-02 12:51:15,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030652705] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:51:15,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383732839] [2023-12-02 12:51:15,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:51:15,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:51:15,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:51:15,176 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:51:15,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 12:51:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:51:15,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-02 12:51:15,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:51:15,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 29 [2023-12-02 12:51:15,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-02 12:51:15,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 11 [2023-12-02 12:51:15,644 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 12:51:15,651 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 12:51:15,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 29 [2023-12-02 12:51:15,788 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 12:51:15,788 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:51:16,200 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 12:51:16,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383732839] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:51:16,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [963599945] [2023-12-02 12:51:16,202 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2023-12-02 12:51:16,203 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:51:16,203 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:51:16,203 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:51:16,203 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:51:18,560 INFO L197 IcfgInterpreter]: Interpreting procedure get_dummy with input of size 15 for LOIs [2023-12-02 12:51:18,571 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:51:23,579 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '698#(and (<= 1 |#StackHeapBarrier|) (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (= 5 |~#d2~0.base|) (<= 2147483647 |ULTIMATE.start_main_~i~0#1|) (= |~#d1~0.offset| 0))' at error location [2023-12-02 12:51:23,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 12:51:23,579 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 12:51:23,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 30 [2023-12-02 12:51:23,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775237891] [2023-12-02 12:51:23,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 12:51:23,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-02 12:51:23,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:51:23,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-02 12:51:23,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=1568, Unknown=0, NotChecked=0, Total=1806 [2023-12-02 12:51:23,582 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 31 states, 24 states have (on average 2.0) internal successors, (48), 27 states have internal predecessors, (48), 7 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2023-12-02 12:51:24,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:51:24,137 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2023-12-02 12:51:24,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 12:51:24,138 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 24 states have (on average 2.0) internal successors, (48), 27 states have internal predecessors, (48), 7 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 24 [2023-12-02 12:51:24,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:51:24,139 INFO L225 Difference]: With dead ends: 34 [2023-12-02 12:51:24,139 INFO L226 Difference]: Without dead ends: 33 [2023-12-02 12:51:24,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 759 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=403, Invalid=2249, Unknown=0, NotChecked=0, Total=2652 [2023-12-02 12:51:24,141 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 176 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 12:51:24,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 43 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 12:51:24,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-12-02 12:51:24,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-12-02 12:51:24,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 12:51:24,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2023-12-02 12:51:24,155 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 24 [2023-12-02 12:51:24,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:51:24,155 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2023-12-02 12:51:24,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 24 states have (on average 2.0) internal successors, (48), 27 states have internal predecessors, (48), 7 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2023-12-02 12:51:24,155 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2023-12-02 12:51:24,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 12:51:24,156 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:51:24,156 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:51:24,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 12:51:24,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:51:24,357 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 12:51:24,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:51:24,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1948455978, now seen corresponding path program 2 times [2023-12-02 12:51:24,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:51:24,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688190793] [2023-12-02 12:51:24,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:51:24,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:51:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:51:24,933 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-02 12:51:24,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:51:24,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688190793] [2023-12-02 12:51:24,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688190793] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:51:24,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134530502] [2023-12-02 12:51:24,933 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 12:51:24,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:51:24,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:51:24,935 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:51:24,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 12:51:25,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-02 12:51:25,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 12:51:25,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 12:51:25,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:51:25,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 29 [2023-12-02 12:51:25,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 43 [2023-12-02 12:51:25,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-02 12:51:25,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-02 12:51:25,876 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-12-02 12:51:25,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 47 [2023-12-02 12:51:25,908 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-02 12:51:25,908 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:51:26,332 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 12:51:26,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134530502] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:51:26,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1213532938] [2023-12-02 12:51:26,335 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2023-12-02 12:51:26,335 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:51:26,335 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:51:26,335 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:51:26,335 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:51:28,627 INFO L197 IcfgInterpreter]: Interpreting procedure get_dummy with input of size 15 for LOIs [2023-12-02 12:51:28,632 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:51:33,340 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1050#(and (<= 1 |#StackHeapBarrier|) (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (= 5 |~#d2~0.base|) (<= 2147483647 |ULTIMATE.start_main_~i~0#1|) (= |~#d1~0.offset| 0))' at error location [2023-12-02 12:51:33,340 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 12:51:33,341 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 12:51:33,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 11] total 26 [2023-12-02 12:51:33,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123815104] [2023-12-02 12:51:33,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 12:51:33,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-02 12:51:33,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:51:33,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-02 12:51:33,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=1253, Unknown=0, NotChecked=0, Total=1482 [2023-12-02 12:51:33,343 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 27 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 22 states have internal predecessors, (40), 8 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2023-12-02 12:51:34,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:51:34,010 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2023-12-02 12:51:34,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 12:51:34,011 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 22 states have internal predecessors, (40), 8 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) Word has length 36 [2023-12-02 12:51:34,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:51:34,011 INFO L225 Difference]: With dead ends: 33 [2023-12-02 12:51:34,011 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 12:51:34,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 79 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=381, Invalid=1781, Unknown=0, NotChecked=0, Total=2162 [2023-12-02 12:51:34,012 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 55 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:51:34,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 27 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:51:34,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 12:51:34,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 12:51:34,014 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 12:51:34,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 12:51:34,014 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2023-12-02 12:51:34,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:51:34,014 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 12:51:34,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 22 states have internal predecessors, (40), 8 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2023-12-02 12:51:34,014 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 12:51:34,015 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 12:51:34,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-12-02 12:51:34,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-12-02 12:51:34,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-12-02 12:51:34,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-12-02 12:51:34,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 12:51:34,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 12:51:34,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 12:51:35,399 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 22 25) the Hoare annotation is: true [2023-12-02 12:51:35,399 INFO L899 garLoopResultBuilder]: For program point get_dummyEXIT(lines 22 25) no Hoare annotation was computed. [2023-12-02 12:51:35,400 INFO L895 garLoopResultBuilder]: At program point L35-2(line 35) the Hoare annotation is: (and (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (= 5 |~#d2~0.base|) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (exists ((|v_ULTIMATE.start_init_#t~nondet7#1_12| Int) (|v_ULTIMATE.start_init_#t~nondet4#1_12| Int) (|v_ULTIMATE.start_init_#t~nondet6#1_12| Int) (|v_#memory_int_24| (Array Int (Array Int Int))) (|v_ULTIMATE.start_init_#t~nondet5#1_12| Int)) (let ((.cse1 (select |v_#memory_int_24| 5)) (.cse0 (select |v_#memory_int_24| 1)) (.cse2 (select |v_#memory_int_24| 4))) (and (<= 0 (+ |v_ULTIMATE.start_init_#t~nondet6#1_12| 2147483648)) (= (select .cse0 1) 0) (= 0 (select .cse1 4)) (<= 0 (+ |v_ULTIMATE.start_init_#t~nondet4#1_12| 2147483648)) (= |#memory_int| (store (store |v_#memory_int_24| 4 (store (store .cse2 0 |v_ULTIMATE.start_init_#t~nondet4#1_12|) 4 |v_ULTIMATE.start_init_#t~nondet5#1_12|)) 5 (store (store .cse1 0 |v_ULTIMATE.start_init_#t~nondet6#1_12|) 4 |v_ULTIMATE.start_init_#t~nondet7#1_12|))) (= (select .cse1 0) 0) (<= 0 (+ |v_ULTIMATE.start_init_#t~nondet7#1_12| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_init_#t~nondet5#1_12| 2147483648)) (= (select .cse2 0) 0) (<= |v_ULTIMATE.start_init_#t~nondet4#1_12| 2147483647) (<= |v_ULTIMATE.start_init_#t~nondet6#1_12| 2147483647) (= (select .cse0 0) 48) (= (select .cse2 4) 0) (<= |v_ULTIMATE.start_init_#t~nondet7#1_12| 2147483647) (<= |v_ULTIMATE.start_init_#t~nondet5#1_12| 2147483647)))) (= (select |#length| 4) 8) (= (select |#valid| 4) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= |~#d1~0.offset| 0) (= (select |#valid| 2) 1) (= 8 (select |#length| 5)) (let ((.cse3 (= |ULTIMATE.start_main_~pd1~0#1.offset| 0))) (or (and (= 4 |ULTIMATE.start_main_~pd1~0#1.base|) .cse3) (and (= 5 |ULTIMATE.start_main_~pd1~0#1.base|) .cse3)))) [2023-12-02 12:51:35,400 INFO L899 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2023-12-02 12:51:35,400 INFO L895 garLoopResultBuilder]: At program point L35-4(line 35) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start_init_#t~nondet7#1_12| Int) (|v_ULTIMATE.start_init_#t~nondet4#1_12| Int) (|v_ULTIMATE.start_init_#t~nondet6#1_12| Int) (|v_ULTIMATE.start_init_#t~nondet5#1_12| Int) (|v_#memory_int_26| (Array Int (Array Int Int)))) (let ((.cse2 (select |v_#memory_int_26| 1)) (.cse1 (select |v_#memory_int_26| 5)) (.cse0 (select |v_#memory_int_26| 4))) (and (<= 0 (+ |v_ULTIMATE.start_init_#t~nondet6#1_12| 2147483648)) (= |#memory_int| (store (store |v_#memory_int_26| 4 (store (store .cse0 0 |v_ULTIMATE.start_init_#t~nondet4#1_12|) 4 |v_ULTIMATE.start_init_#t~nondet5#1_12|)) 5 (store (store .cse1 0 |v_ULTIMATE.start_init_#t~nondet6#1_12|) 4 |v_ULTIMATE.start_init_#t~nondet7#1_12|))) (<= 0 (+ |v_ULTIMATE.start_init_#t~nondet4#1_12| 2147483648)) (= (select .cse1 0) 0) (<= 0 (+ |v_ULTIMATE.start_init_#t~nondet7#1_12| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_init_#t~nondet5#1_12| 2147483648)) (= 48 (select .cse2 0)) (<= |v_ULTIMATE.start_init_#t~nondet4#1_12| 2147483647) (<= |v_ULTIMATE.start_init_#t~nondet6#1_12| 2147483647) (= (select .cse2 1) 0) (= (select .cse1 4) 0) (= 0 (select .cse0 4)) (= (select .cse0 0) 0) (<= |v_ULTIMATE.start_init_#t~nondet7#1_12| 2147483647) (<= |v_ULTIMATE.start_init_#t~nondet5#1_12| 2147483647)))) (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (= 5 |~#d2~0.base|) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#length| 4) 8) (= (select |#valid| 4) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= |~#d1~0.offset| 0) (let ((.cse3 (= |ULTIMATE.start_main_~pd2~0#1.offset| 0))) (or (and .cse3 (= 5 |ULTIMATE.start_main_~pd2~0#1.base|)) (and .cse3 (= 4 |ULTIMATE.start_main_~pd2~0#1.base|)))) (= (select |#valid| 2) 1) (= 8 (select |#length| 5)) (let ((.cse4 (= |ULTIMATE.start_main_~pd1~0#1.offset| 0))) (or (and (= 4 |ULTIMATE.start_main_~pd1~0#1.base|) .cse4) (and (= 5 |ULTIMATE.start_main_~pd1~0#1.base|) .cse4)))) [2023-12-02 12:51:35,400 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-12-02 12:51:35,400 INFO L899 garLoopResultBuilder]: For program point L35-5(line 35) no Hoare annotation was computed. [2023-12-02 12:51:35,400 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 32 52) no Hoare annotation was computed. [2023-12-02 12:51:35,401 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 40 42) no Hoare annotation was computed. [2023-12-02 12:51:35,401 INFO L895 garLoopResultBuilder]: At program point L40-3(lines 40 42) the Hoare annotation is: (let ((.cse3 (not |ULTIMATE.start_main_#t~short15#1|))) (and (exists ((|v_ULTIMATE.start_init_#t~nondet7#1_12| Int) (|v_ULTIMATE.start_init_#t~nondet4#1_12| Int) (|v_ULTIMATE.start_init_#t~nondet6#1_12| Int) (|v_ULTIMATE.start_init_#t~nondet5#1_12| Int) (|v_#memory_int_26| (Array Int (Array Int Int)))) (let ((.cse2 (select |v_#memory_int_26| 1)) (.cse1 (select |v_#memory_int_26| 5)) (.cse0 (select |v_#memory_int_26| 4))) (and (<= 0 (+ |v_ULTIMATE.start_init_#t~nondet6#1_12| 2147483648)) (= |#memory_int| (store (store |v_#memory_int_26| 4 (store (store .cse0 0 |v_ULTIMATE.start_init_#t~nondet4#1_12|) 4 |v_ULTIMATE.start_init_#t~nondet5#1_12|)) 5 (store (store .cse1 0 |v_ULTIMATE.start_init_#t~nondet6#1_12|) 4 |v_ULTIMATE.start_init_#t~nondet7#1_12|))) (<= 0 (+ |v_ULTIMATE.start_init_#t~nondet4#1_12| 2147483648)) (= (select .cse1 0) 0) (<= 0 (+ |v_ULTIMATE.start_init_#t~nondet7#1_12| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_init_#t~nondet5#1_12| 2147483648)) (= 48 (select .cse2 0)) (<= |v_ULTIMATE.start_init_#t~nondet4#1_12| 2147483647) (<= |v_ULTIMATE.start_init_#t~nondet6#1_12| 2147483647) (= (select .cse2 1) 0) (= (select .cse1 4) 0) (= 0 (select .cse0 4)) (= (select .cse0 0) 0) (<= |v_ULTIMATE.start_init_#t~nondet7#1_12| 2147483647) (<= |v_ULTIMATE.start_init_#t~nondet5#1_12| 2147483647)))) (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (= 5 |~#d2~0.base|) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (= (select |#valid| 3) 1) (or (= |ULTIMATE.start_main_~pd2~0#1.base| |ULTIMATE.start_main_~pd1~0#1.base|) .cse3) (let ((.cse4 (= |ULTIMATE.start_main_~pa~0#1.offset| 0))) (or (and (<= 1 (select (select |#memory_int| 4) 0)) .cse4 (= |ULTIMATE.start_main_~pa~0#1.base| 4)) (and .cse4 (= 5 |ULTIMATE.start_main_~pa~0#1.base|) (<= 1 (select (select |#memory_int| 5) 0))))) (or (< 0 (select (select |#memory_int| |ULTIMATE.start_main_~pd2~0#1.base|) |ULTIMATE.start_main_~pd2~0#1.offset|)) .cse3) (= (select |#length| 4) 8) (= (select |#valid| 4) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= |~#d1~0.offset| 0) (let ((.cse5 (= |ULTIMATE.start_main_~pd2~0#1.offset| 0))) (or (and .cse5 (= 5 |ULTIMATE.start_main_~pd2~0#1.base|)) (and .cse5 (= 4 |ULTIMATE.start_main_~pd2~0#1.base|)))) (= (select |#valid| 2) 1) (= 8 (select |#length| 5)) (let ((.cse6 (= |ULTIMATE.start_main_~pd1~0#1.offset| 0))) (or (and (= 4 |ULTIMATE.start_main_~pd1~0#1.base|) .cse6) (and (= 5 |ULTIMATE.start_main_~pd1~0#1.base|) .cse6))))) [2023-12-02 12:51:35,401 INFO L899 garLoopResultBuilder]: For program point L40-4(lines 40 42) no Hoare annotation was computed. [2023-12-02 12:51:35,401 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-12-02 12:51:35,401 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-12-02 12:51:35,401 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-12-02 12:51:35,402 INFO L899 garLoopResultBuilder]: For program point L37-2(lines 37 46) no Hoare annotation was computed. [2023-12-02 12:51:35,402 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-12-02 12:51:35,402 INFO L899 garLoopResultBuilder]: For program point L37-4(lines 37 46) no Hoare annotation was computed. [2023-12-02 12:51:35,402 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 12:51:35,402 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 12:51:35,402 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-12-02 12:51:35,402 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 45) no Hoare annotation was computed. [2023-12-02 12:51:35,402 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2023-12-02 12:51:35,402 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2023-12-02 12:51:35,403 INFO L895 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (and (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (= 5 |~#d2~0.base|) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (exists ((|v_ULTIMATE.start_init_#t~nondet7#1_12| Int) (|v_ULTIMATE.start_init_#t~nondet4#1_12| Int) (|v_ULTIMATE.start_init_#t~nondet6#1_12| Int) (|v_#memory_int_24| (Array Int (Array Int Int))) (|v_ULTIMATE.start_init_#t~nondet5#1_12| Int)) (let ((.cse1 (select |v_#memory_int_24| 5)) (.cse0 (select |v_#memory_int_24| 1)) (.cse2 (select |v_#memory_int_24| 4))) (and (<= 0 (+ |v_ULTIMATE.start_init_#t~nondet6#1_12| 2147483648)) (= (select .cse0 1) 0) (= 0 (select .cse1 4)) (<= 0 (+ |v_ULTIMATE.start_init_#t~nondet4#1_12| 2147483648)) (= |#memory_int| (store (store |v_#memory_int_24| 4 (store (store .cse2 0 |v_ULTIMATE.start_init_#t~nondet4#1_12|) 4 |v_ULTIMATE.start_init_#t~nondet5#1_12|)) 5 (store (store .cse1 0 |v_ULTIMATE.start_init_#t~nondet6#1_12|) 4 |v_ULTIMATE.start_init_#t~nondet7#1_12|))) (= (select .cse1 0) 0) (<= 0 (+ |v_ULTIMATE.start_init_#t~nondet7#1_12| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_init_#t~nondet5#1_12| 2147483648)) (= (select .cse2 0) 0) (<= |v_ULTIMATE.start_init_#t~nondet4#1_12| 2147483647) (<= |v_ULTIMATE.start_init_#t~nondet6#1_12| 2147483647) (= (select .cse0 0) 48) (= (select .cse2 4) 0) (<= |v_ULTIMATE.start_init_#t~nondet7#1_12| 2147483647) (<= |v_ULTIMATE.start_init_#t~nondet5#1_12| 2147483647)))) (= (select |#length| 4) 8) (= (select |#valid| 4) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= |~#d1~0.offset| 0) (= (select |#valid| 2) 1) (= 8 (select |#length| 5))) [2023-12-02 12:51:35,403 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2023-12-02 12:51:35,405 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2023-12-02 12:51:35,407 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 12:51:35,418 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_init_#t~nondet7#1_12 : int, v_ULTIMATE.start_init_#t~nondet4#1_12 : int, v_ULTIMATE.start_init_#t~nondet6#1_12 : int, v_ULTIMATE.start_init_#t~nondet5#1_12 : int, v_#memory_int_26 : [int,int]int :: (((((((((((((0 <= v_ULTIMATE.start_init_#t~nondet6#1_12 + 2147483648 && #memory_int == v_#memory_int_26[4 := v_#memory_int_26[4][0 := v_ULTIMATE.start_init_#t~nondet4#1_12][4 := v_ULTIMATE.start_init_#t~nondet5#1_12]][5 := v_#memory_int_26[5][0 := v_ULTIMATE.start_init_#t~nondet6#1_12][4 := v_ULTIMATE.start_init_#t~nondet7#1_12]]) && 0 <= v_ULTIMATE.start_init_#t~nondet4#1_12 + 2147483648) && v_#memory_int_26[5][0] == 0) && 0 <= v_ULTIMATE.start_init_#t~nondet7#1_12 + 2147483648) && 0 <= v_ULTIMATE.start_init_#t~nondet5#1_12 + 2147483648) && 48 == v_#memory_int_26[1][0]) && v_ULTIMATE.start_init_#t~nondet4#1_12 <= 2147483647) && v_ULTIMATE.start_init_#t~nondet6#1_12 <= 2147483647) && v_#memory_int_26[1][1] == 0) && v_#memory_int_26[5][4] == 0) && 0 == v_#memory_int_26[4][4]) && v_#memory_int_26[4][0] == 0) && v_ULTIMATE.start_init_#t~nondet7#1_12 <= 2147483647) && v_ULTIMATE.start_init_#t~nondet5#1_12 <= 2147483647) could not be translated [2023-12-02 12:51:35,421 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[5] could not be translated [2023-12-02 12:51:35,421 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-12-02 12:51:35,423 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-12-02 12:51:35,423 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-12-02 12:51:35,423 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-12-02 12:51:35,423 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated [2023-12-02 12:51:35,424 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[4][0] could not be translated [2023-12-02 12:51:35,424 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[5][0] could not be translated [2023-12-02 12:51:35,424 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~pd2~0!base][~pd2~0!offset] could not be translated [2023-12-02 12:51:35,424 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated [2023-12-02 12:51:35,424 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[4] could not be translated [2023-12-02 12:51:35,425 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[4] could not be translated [2023-12-02 12:51:35,425 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-12-02 12:51:35,425 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-12-02 12:51:35,425 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-12-02 12:51:35,425 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[5] could not be translated [2023-12-02 12:51:35,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:51:35 BoogieIcfgContainer [2023-12-02 12:51:35,426 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 12:51:35,427 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 12:51:35,427 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 12:51:35,427 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 12:51:35,428 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:50:51" (3/4) ... [2023-12-02 12:51:35,430 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 12:51:35,433 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure get_dummy [2023-12-02 12:51:35,438 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-12-02 12:51:35,438 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-12-02 12:51:35,438 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 12:51:35,439 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 12:51:35,522 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 12:51:35,523 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 12:51:35,523 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 12:51:35,524 INFO L158 Benchmark]: Toolchain (without parser) took 44567.93ms. Allocated memory was 146.8MB in the beginning and 490.7MB in the end (delta: 343.9MB). Free memory was 114.3MB in the beginning and 224.0MB in the end (delta: -109.7MB). Peak memory consumption was 235.9MB. Max. memory is 16.1GB. [2023-12-02 12:51:35,524 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 146.8MB. Free memory was 121.9MB in the beginning and 121.7MB in the end (delta: 183.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:51:35,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.71ms. Allocated memory is still 146.8MB. Free memory was 114.3MB in the beginning and 103.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 12:51:35,525 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.85ms. Allocated memory is still 146.8MB. Free memory was 103.5MB in the beginning and 101.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:51:35,526 INFO L158 Benchmark]: Boogie Preprocessor took 24.49ms. Allocated memory is still 146.8MB. Free memory was 101.8MB in the beginning and 100.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:51:35,526 INFO L158 Benchmark]: RCFGBuilder took 347.90ms. Allocated memory is still 146.8MB. Free memory was 100.5MB in the beginning and 84.5MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 12:51:35,526 INFO L158 Benchmark]: TraceAbstraction took 43827.50ms. Allocated memory was 146.8MB in the beginning and 490.7MB in the end (delta: 343.9MB). Free memory was 83.7MB in the beginning and 229.2MB in the end (delta: -145.5MB). Peak memory consumption was 266.1MB. Max. memory is 16.1GB. [2023-12-02 12:51:35,527 INFO L158 Benchmark]: Witness Printer took 96.27ms. Allocated memory is still 490.7MB. Free memory was 229.2MB in the beginning and 224.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 12:51:35,529 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 146.8MB. Free memory was 121.9MB in the beginning and 121.7MB in the end (delta: 183.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.71ms. Allocated memory is still 146.8MB. Free memory was 114.3MB in the beginning and 103.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.85ms. Allocated memory is still 146.8MB. Free memory was 103.5MB in the beginning and 101.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.49ms. Allocated memory is still 146.8MB. Free memory was 101.8MB in the beginning and 100.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 347.90ms. Allocated memory is still 146.8MB. Free memory was 100.5MB in the beginning and 84.5MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 43827.50ms. Allocated memory was 146.8MB in the beginning and 490.7MB in the end (delta: 343.9MB). Free memory was 83.7MB in the beginning and 229.2MB in the end (delta: -145.5MB). Peak memory consumption was 266.1MB. Max. memory is 16.1GB. * Witness Printer took 96.27ms. Allocated memory is still 490.7MB. Free memory was 229.2MB in the beginning and 224.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_init_#t~nondet7#1_12 : int, v_ULTIMATE.start_init_#t~nondet4#1_12 : int, v_ULTIMATE.start_init_#t~nondet6#1_12 : int, v_ULTIMATE.start_init_#t~nondet5#1_12 : int, v_#memory_int_26 : [int,int]int :: (((((((((((((0 <= v_ULTIMATE.start_init_#t~nondet6#1_12 + 2147483648 && #memory_int == v_#memory_int_26[4 := v_#memory_int_26[4][0 := v_ULTIMATE.start_init_#t~nondet4#1_12][4 := v_ULTIMATE.start_init_#t~nondet5#1_12]][5 := v_#memory_int_26[5][0 := v_ULTIMATE.start_init_#t~nondet6#1_12][4 := v_ULTIMATE.start_init_#t~nondet7#1_12]]) && 0 <= v_ULTIMATE.start_init_#t~nondet4#1_12 + 2147483648) && v_#memory_int_26[5][0] == 0) && 0 <= v_ULTIMATE.start_init_#t~nondet7#1_12 + 2147483648) && 0 <= v_ULTIMATE.start_init_#t~nondet5#1_12 + 2147483648) && 48 == v_#memory_int_26[1][0]) && v_ULTIMATE.start_init_#t~nondet4#1_12 <= 2147483647) && v_ULTIMATE.start_init_#t~nondet6#1_12 <= 2147483647) && v_#memory_int_26[1][1] == 0) && v_#memory_int_26[5][4] == 0) && 0 == v_#memory_int_26[4][4]) && v_#memory_int_26[4][0] == 0) && v_ULTIMATE.start_init_#t~nondet7#1_12 <= 2147483647) && v_ULTIMATE.start_init_#t~nondet5#1_12 <= 2147483647) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[5] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[4][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[5][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~pd2~0!base][~pd2~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[5] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 43.8s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 281 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 280 mSDsluCounter, 178 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 124 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 666 IncrementalHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 54 mSDtfsCounter, 666 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 358 GetRequests, 172 SyntacticMatches, 14 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2231 ImplicationChecksByTransitivity, 25.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=5, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 814 HoareAnnotationTreeSize, 7 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 5 FomulaSimplificationsInter, 6235 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 226 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 308 ConstructedInterpolants, 12 QuantifiedInterpolants, 4895 SizeOfPredicates, 55 NumberOfNonLiveVariables, 530 ConjunctsInSsa, 146 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 136/216 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 4.6s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 32, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 22, TOOLS_POST_TIME: 2.5s, TOOLS_POST_CALL_APPLICATIONS: 18, TOOLS_POST_CALL_TIME: 0.8s, TOOLS_POST_RETURN_APPLICATIONS: 12, TOOLS_POST_RETURN_TIME: 0.8s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 52, TOOLS_QUANTIFIERELIM_TIME: 4.0s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 78, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 16, DOMAIN_JOIN_TIME: 0.4s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 32, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 12, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 353, DAG_COMPRESSION_RETAINED_NODES: 84, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (0 <= (i + 2147483648)) RESULT: Ultimate proved your program to be correct! [2023-12-02 12:51:35,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5050d306-478b-491b-9f7f-9e99b60c20a3/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