./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u2_unwindbound2.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_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u2_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91 --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 e57b7a688a4809923d49abd295c8957f721362e148c6f16fbec21211e82ecfa2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:02:25,529 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:02:25,629 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-25 00:02:25,635 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:02:25,636 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:02:25,659 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:02:25,660 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:02:25,661 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:02:25,662 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:02:25,662 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:02:25,663 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:02:25,664 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:02:25,664 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:02:25,665 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:02:25,665 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:02:25,666 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:02:25,667 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:02:25,667 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:02:25,668 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:02:25,669 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:02:25,669 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:02:25,670 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:02:25,671 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:02:25,671 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:02:25,672 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:02:25,672 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:02:25,673 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:02:25,673 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:02:25,674 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:02:25,674 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:02:25,675 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:02:25,675 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-25 00:02:25,675 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:02:25,676 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:02:25,676 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:02:25,676 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:02:25,677 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:02:25,677 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:02:25,677 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:02:25,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:02:25,678 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:02:25,678 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:02:25,679 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:02:25,679 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:02:25,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:02:25,679 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:02:25,680 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:02:25,680 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:02:25,680 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:02:25,680 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_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e57b7a688a4809923d49abd295c8957f721362e148c6f16fbec21211e82ecfa2 [2023-11-25 00:02:25,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:02:26,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:02:26,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:02:26,007 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:02:26,007 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:02:26,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u2_unwindbound2.c [2023-11-25 00:02:29,183 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:02:29,387 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:02:29,388 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/sv-benchmarks/c/nla-digbench-scaling/geo1-u2_unwindbound2.c [2023-11-25 00:02:29,396 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/data/9f688e233/dcac008ed943412ca6236654fc81c0e2/FLAG5a53f95e3 [2023-11-25 00:02:29,412 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/data/9f688e233/dcac008ed943412ca6236654fc81c0e2 [2023-11-25 00:02:29,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:02:29,421 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:02:29,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:02:29,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:02:29,431 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:02:29,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,433 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bf39975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29, skipping insertion in model container [2023-11-25 00:02:29,433 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,456 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:02:29,635 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:02:29,647 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:02:29,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:02:29,683 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:02:29,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29 WrapperNode [2023-11-25 00:02:29,684 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:02:29,686 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:02:29,686 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:02:29,686 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:02:29,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,702 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,728 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2023-11-25 00:02:29,728 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:02:29,729 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:02:29,729 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:02:29,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:02:29,740 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,743 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,743 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,748 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,751 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,753 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,754 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:02:29,758 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:02:29,758 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:02:29,758 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:02:29,759 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:02:29,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:29,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:02:29,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:02:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:02:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:02:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:02:29,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:02:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-25 00:02:29,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-25 00:02:29,919 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:02:29,922 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:02:30,291 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:02:30,331 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:02:30,331 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:02:30,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:02:30 BoogieIcfgContainer [2023-11-25 00:02:30,334 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:02:30,337 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:02:30,337 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:02:30,341 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:02:30,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:02:29" (1/3) ... [2023-11-25 00:02:30,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f20d9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:02:30, skipping insertion in model container [2023-11-25 00:02:30,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (2/3) ... [2023-11-25 00:02:30,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f20d9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:02:30, skipping insertion in model container [2023-11-25 00:02:30,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:02:30" (3/3) ... [2023-11-25 00:02:30,344 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-u2_unwindbound2.c [2023-11-25 00:02:30,365 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:02:30,366 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-11-25 00:02:30,416 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:02:30,424 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;@14cc5884, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:02:30,424 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-25 00:02:30,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 30 states have (on average 1.9) internal successors, (57), 54 states have internal predecessors, (57), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-25 00:02:30,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-25 00:02:30,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:30,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-25 00:02:30,436 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:02:30,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:30,442 INFO L85 PathProgramCache]: Analyzing trace with hash 118428, now seen corresponding path program 1 times [2023-11-25 00:02:30,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:30,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066978543] [2023-11-25 00:02:30,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:30,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:30,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:30,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:30,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066978543] [2023-11-25 00:02:30,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066978543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:30,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:30,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:02:30,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707513690] [2023-11-25 00:02:30,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:30,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:02:30,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:30,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:02:30,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:02:30,789 INFO L87 Difference]: Start difference. First operand has 58 states, 30 states have (on average 1.9) internal successors, (57), 54 states have internal predecessors, (57), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:30,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:30,929 INFO L93 Difference]: Finished difference Result 81 states and 85 transitions. [2023-11-25 00:02:30,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-25 00:02:30,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-25 00:02:30,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:30,943 INFO L225 Difference]: With dead ends: 81 [2023-11-25 00:02:30,943 INFO L226 Difference]: Without dead ends: 59 [2023-11-25 00:02:30,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:02:30,979 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 4 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:30,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 157 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:02:30,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-25 00:02:31,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-25 00:02:31,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 33 states have (on average 1.7575757575757576) internal successors, (58), 56 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-25 00:02:31,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2023-11-25 00:02:31,026 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 3 [2023-11-25 00:02:31,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:31,027 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2023-11-25 00:02:31,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:31,030 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2023-11-25 00:02:31,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-25 00:02:31,031 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:31,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-25 00:02:31,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:02:31,032 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:02:31,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:31,033 INFO L85 PathProgramCache]: Analyzing trace with hash -766837873, now seen corresponding path program 1 times [2023-11-25 00:02:31,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:31,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968036704] [2023-11-25 00:02:31,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:31,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:31,058 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:02:31,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [870553001] [2023-11-25 00:02:31,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:31,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:31,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:31,065 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:02:31,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-25 00:02:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:31,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:02:31,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:31,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:31,155 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:31,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:31,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968036704] [2023-11-25 00:02:31,156 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:02:31,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870553001] [2023-11-25 00:02:31,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870553001] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:31,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:31,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-25 00:02:31,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036196079] [2023-11-25 00:02:31,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:31,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:02:31,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:31,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:02:31,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:31,160 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:31,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:31,286 INFO L93 Difference]: Finished difference Result 93 states and 96 transitions. [2023-11-25 00:02:31,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:02:31,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-25 00:02:31,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:31,289 INFO L225 Difference]: With dead ends: 93 [2023-11-25 00:02:31,289 INFO L226 Difference]: Without dead ends: 83 [2023-11-25 00:02:31,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:31,291 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 22 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:31,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 55 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:02:31,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-25 00:02:31,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 77. [2023-11-25 00:02:31,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 50 states have (on average 1.64) internal successors, (82), 73 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-25 00:02:31,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 86 transitions. [2023-11-25 00:02:31,304 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 86 transitions. Word has length 6 [2023-11-25 00:02:31,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:31,305 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 86 transitions. [2023-11-25 00:02:31,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:31,305 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 86 transitions. [2023-11-25 00:02:31,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-25 00:02:31,306 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:31,306 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:31,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:31,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:31,512 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:02:31,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:31,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1984700563, now seen corresponding path program 1 times [2023-11-25 00:02:31,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:31,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863582265] [2023-11-25 00:02:31,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:31,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:31,535 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:02:31,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1055271294] [2023-11-25 00:02:31,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:31,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:31,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:31,539 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:02:31,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-25 00:02:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:31,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:02:31,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:31,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:31,743 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:31,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:31,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863582265] [2023-11-25 00:02:31,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:02:31,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055271294] [2023-11-25 00:02:31,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055271294] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:31,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:31,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-25 00:02:31,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813574014] [2023-11-25 00:02:31,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:31,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:02:31,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:31,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:02:31,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:31,756 INFO L87 Difference]: Start difference. First operand 77 states and 86 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:32,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:32,442 INFO L93 Difference]: Finished difference Result 83 states and 86 transitions. [2023-11-25 00:02:32,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:02:32,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-25 00:02:32,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:32,445 INFO L225 Difference]: With dead ends: 83 [2023-11-25 00:02:32,445 INFO L226 Difference]: Without dead ends: 81 [2023-11-25 00:02:32,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:32,447 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 16 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:32,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 53 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-25 00:02:32,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-25 00:02:32,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 77. [2023-11-25 00:02:32,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 50 states have (on average 1.6) internal successors, (80), 73 states have internal predecessors, (80), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-25 00:02:32,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 84 transitions. [2023-11-25 00:02:32,457 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 84 transitions. Word has length 10 [2023-11-25 00:02:32,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:32,458 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 84 transitions. [2023-11-25 00:02:32,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:32,458 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 84 transitions. [2023-11-25 00:02:32,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-25 00:02:32,458 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:32,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:32,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:32,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:32,659 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:02:32,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:32,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1396175367, now seen corresponding path program 1 times [2023-11-25 00:02:32,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:32,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379838611] [2023-11-25 00:02:32,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:32,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:32,670 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:02:32,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1155767037] [2023-11-25 00:02:32,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:32,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:32,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:32,672 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:02:32,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-25 00:02:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:32,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:02:32,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:32,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:32,823 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:32,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:32,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379838611] [2023-11-25 00:02:32,823 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:02:32,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155767037] [2023-11-25 00:02:32,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155767037] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:32,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:32,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:02:32,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925949064] [2023-11-25 00:02:32,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:32,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:02:32,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:32,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:02:32,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:02:32,826 INFO L87 Difference]: Start difference. First operand 77 states and 84 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:32,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:32,939 INFO L93 Difference]: Finished difference Result 80 states and 88 transitions. [2023-11-25 00:02:32,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:02:32,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-25 00:02:32,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:32,941 INFO L225 Difference]: With dead ends: 80 [2023-11-25 00:02:32,941 INFO L226 Difference]: Without dead ends: 71 [2023-11-25 00:02:32,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:02:32,943 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 31 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:32,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 31 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:02:32,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-25 00:02:32,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 68. [2023-11-25 00:02:32,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 50 states have (on average 1.38) internal successors, (69), 64 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-25 00:02:32,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 73 transitions. [2023-11-25 00:02:32,955 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 73 transitions. Word has length 11 [2023-11-25 00:02:32,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:32,956 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 73 transitions. [2023-11-25 00:02:32,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:32,956 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 73 transitions. [2023-11-25 00:02:32,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-25 00:02:32,957 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:32,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:32,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:33,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:33,169 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:02:33,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:33,170 INFO L85 PathProgramCache]: Analyzing trace with hash 2062226116, now seen corresponding path program 1 times [2023-11-25 00:02:33,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:33,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621658366] [2023-11-25 00:02:33,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:33,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:33,181 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:02:33,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1736937426] [2023-11-25 00:02:33,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:33,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:33,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:33,185 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:02:33,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-25 00:02:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:33,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-25 00:02:33,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:33,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:33,270 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:33,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:33,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621658366] [2023-11-25 00:02:33,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:02:33,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736937426] [2023-11-25 00:02:33,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736937426] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:33,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:33,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:02:33,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416904894] [2023-11-25 00:02:33,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:33,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:02:33,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:33,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:02:33,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:33,274 INFO L87 Difference]: Start difference. First operand 68 states and 73 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-25 00:02:33,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:33,290 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2023-11-25 00:02:33,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:02:33,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-25 00:02:33,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:33,292 INFO L225 Difference]: With dead ends: 68 [2023-11-25 00:02:33,292 INFO L226 Difference]: Without dead ends: 67 [2023-11-25 00:02:33,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:33,293 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 28 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:33,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 40 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:02:33,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-25 00:02:33,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-11-25 00:02:33,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 50 states have (on average 1.34) internal successors, (67), 63 states have internal predecessors, (67), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-25 00:02:33,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2023-11-25 00:02:33,303 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 18 [2023-11-25 00:02:33,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:33,304 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2023-11-25 00:02:33,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-25 00:02:33,305 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2023-11-25 00:02:33,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-25 00:02:33,306 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:33,306 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:33,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:33,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:33,511 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:02:33,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:33,512 INFO L85 PathProgramCache]: Analyzing trace with hash -495499772, now seen corresponding path program 1 times [2023-11-25 00:02:33,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:33,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332256064] [2023-11-25 00:02:33,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:33,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:33,522 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:02:33,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [828192298] [2023-11-25 00:02:33,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:33,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:33,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:33,528 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:02:33,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-25 00:02:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:33,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-25 00:02:33,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:33,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:33,624 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:33,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:33,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332256064] [2023-11-25 00:02:33,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:02:33,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828192298] [2023-11-25 00:02:33,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828192298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:33,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:33,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:02:33,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126136342] [2023-11-25 00:02:33,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:33,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:02:33,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:33,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:02:33,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:33,627 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-25 00:02:33,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:33,646 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2023-11-25 00:02:33,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:02:33,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2023-11-25 00:02:33,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:33,648 INFO L225 Difference]: With dead ends: 76 [2023-11-25 00:02:33,648 INFO L226 Difference]: Without dead ends: 75 [2023-11-25 00:02:33,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:33,650 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 10 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:33,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 79 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:02:33,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-25 00:02:33,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 67. [2023-11-25 00:02:33,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 50 states have (on average 1.32) internal successors, (66), 63 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-25 00:02:33,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2023-11-25 00:02:33,684 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 19 [2023-11-25 00:02:33,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:33,685 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2023-11-25 00:02:33,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-25 00:02:33,685 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2023-11-25 00:02:33,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-25 00:02:33,686 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:33,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:33,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-25 00:02:33,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-25 00:02:33,895 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:02:33,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:33,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1819335611, now seen corresponding path program 1 times [2023-11-25 00:02:33,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:33,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651381834] [2023-11-25 00:02:33,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:33,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:33,905 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:02:33,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [750714307] [2023-11-25 00:02:33,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:33,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:33,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:33,912 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:02:33,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-25 00:02:33,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:33,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:02:33,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:36,162 WARN L876 $PredicateComparison]: unable to prove that (or (< 0 (+ |c_ULTIMATE.start_main_~x~0#1| 9223372034707292161)) (exists ((v_z_1 Int)) (and (<= v_z_1 4294967295) (exists ((|v_ULTIMATE.start_main_~x~0#1_53| Int)) (let ((.cse0 (* |v_ULTIMATE.start_main_~x~0#1_53| v_z_1))) (and (<= |v_ULTIMATE.start_main_~x~0#1_53| (+ .cse0 9223372036854775808)) (<= .cse0 (+ |v_ULTIMATE.start_main_~x~0#1_53| |c_ULTIMATE.start_main_~x~0#1|))))) (<= 1 v_z_1)))) is different from true [2023-11-25 00:02:36,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:36,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:36,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:36,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651381834] [2023-11-25 00:02:36,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:02:36,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750714307] [2023-11-25 00:02:36,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750714307] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:36,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:36,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:02:36,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987400200] [2023-11-25 00:02:36,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:36,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:02:36,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:36,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:02:36,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-25 00:02:36,165 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-25 00:02:36,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:36,264 INFO L93 Difference]: Finished difference Result 67 states and 70 transitions. [2023-11-25 00:02:36,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:02:36,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2023-11-25 00:02:36,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:36,266 INFO L225 Difference]: With dead ends: 67 [2023-11-25 00:02:36,266 INFO L226 Difference]: Without dead ends: 66 [2023-11-25 00:02:36,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-25 00:02:36,268 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 20 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 69 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:36,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 41 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 69 Unchecked, 0.1s Time] [2023-11-25 00:02:36,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-25 00:02:36,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-11-25 00:02:36,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 50 states have (on average 1.3) internal successors, (65), 62 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-25 00:02:36,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2023-11-25 00:02:36,277 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 20 [2023-11-25 00:02:36,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:36,278 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2023-11-25 00:02:36,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-25 00:02:36,278 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2023-11-25 00:02:36,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-25 00:02:36,279 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:36,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:36,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:36,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-25 00:02:36,485 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:02:36,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:36,486 INFO L85 PathProgramCache]: Analyzing trace with hash 564829188, now seen corresponding path program 1 times [2023-11-25 00:02:36,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:36,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108022677] [2023-11-25 00:02:36,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:36,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:36,502 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:02:36,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2059799436] [2023-11-25 00:02:36,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:36,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:36,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:36,506 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:02:36,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-25 00:02:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:36,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:02:36,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:36,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:36,608 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:36,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:36,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108022677] [2023-11-25 00:02:36,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:02:36,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059799436] [2023-11-25 00:02:36,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059799436] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:36,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:36,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:02:36,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197361620] [2023-11-25 00:02:36,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:36,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:02:36,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:36,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:02:36,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:02:36,612 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-25 00:02:36,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:36,718 INFO L93 Difference]: Finished difference Result 73 states and 75 transitions. [2023-11-25 00:02:36,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:02:36,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-11-25 00:02:36,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:36,719 INFO L225 Difference]: With dead ends: 73 [2023-11-25 00:02:36,719 INFO L226 Difference]: Without dead ends: 72 [2023-11-25 00:02:36,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:02:36,722 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 10 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:36,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 58 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:02:36,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-25 00:02:36,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2023-11-25 00:02:36,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 64 states have internal predecessors, (67), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-25 00:02:36,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2023-11-25 00:02:36,743 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 21 [2023-11-25 00:02:36,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:36,743 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2023-11-25 00:02:36,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-25 00:02:36,744 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2023-11-25 00:02:36,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-25 00:02:36,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:36,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:36,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:36,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:36,948 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:02:36,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:36,948 INFO L85 PathProgramCache]: Analyzing trace with hash 329835741, now seen corresponding path program 1 times [2023-11-25 00:02:36,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:36,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368054131] [2023-11-25 00:02:36,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:36,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:36,964 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:02:36,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1324460005] [2023-11-25 00:02:36,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:36,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:36,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:36,966 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:02:36,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-25 00:02:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:37,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-25 00:02:37,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:37,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:37,203 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:37,203 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:37,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368054131] [2023-11-25 00:02:37,204 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:02:37,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324460005] [2023-11-25 00:02:37,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324460005] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:37,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:37,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:02:37,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876459152] [2023-11-25 00:02:37,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:37,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:02:37,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:37,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:02:37,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:02:37,207 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-25 00:02:37,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:37,335 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2023-11-25 00:02:37,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:02:37,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2023-11-25 00:02:37,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:37,336 INFO L225 Difference]: With dead ends: 75 [2023-11-25 00:02:37,337 INFO L226 Difference]: Without dead ends: 74 [2023-11-25 00:02:37,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:02:37,340 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 10 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:37,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 49 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:02:37,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-25 00:02:37,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 69. [2023-11-25 00:02:37,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 53 states have (on average 1.2830188679245282) internal successors, (68), 65 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-25 00:02:37,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 72 transitions. [2023-11-25 00:02:37,357 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 72 transitions. Word has length 22 [2023-11-25 00:02:37,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:37,357 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 72 transitions. [2023-11-25 00:02:37,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-25 00:02:37,358 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 72 transitions. [2023-11-25 00:02:37,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-25 00:02:37,358 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:37,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:37,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:37,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:37,559 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:02:37,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:37,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1634973478, now seen corresponding path program 1 times [2023-11-25 00:02:37,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:37,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753058284] [2023-11-25 00:02:37,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:37,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:37,567 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:02:37,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [989000038] [2023-11-25 00:02:37,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:37,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:37,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:37,570 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:02:37,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-25 00:02:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:37,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:02:37,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:37,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:37,689 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:37,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:37,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753058284] [2023-11-25 00:02:37,690 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:02:37,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989000038] [2023-11-25 00:02:37,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989000038] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:37,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:37,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:02:37,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21814204] [2023-11-25 00:02:37,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:37,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:02:37,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:37,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:02:37,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:02:37,693 INFO L87 Difference]: Start difference. First operand 69 states and 72 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-25 00:02:37,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:37,770 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2023-11-25 00:02:37,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:02:37,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-11-25 00:02:37,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:37,771 INFO L225 Difference]: With dead ends: 69 [2023-11-25 00:02:37,771 INFO L226 Difference]: Without dead ends: 62 [2023-11-25 00:02:37,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:02:37,773 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 42 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:37,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 35 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:02:37,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-25 00:02:37,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-11-25 00:02:37,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 47 states have (on average 1.2765957446808511) internal successors, (60), 58 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-25 00:02:37,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2023-11-25 00:02:37,780 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 23 [2023-11-25 00:02:37,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:37,781 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2023-11-25 00:02:37,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-25 00:02:37,781 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2023-11-25 00:02:37,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-25 00:02:37,782 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:37,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:37,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:37,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-25 00:02:37,987 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:02:37,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:37,988 INFO L85 PathProgramCache]: Analyzing trace with hash 933099210, now seen corresponding path program 1 times [2023-11-25 00:02:37,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:37,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657299115] [2023-11-25 00:02:37,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:37,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:37,998 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:02:38,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1484819935] [2023-11-25 00:02:38,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:38,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:38,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:38,002 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:02:38,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-25 00:02:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:02:38,089 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-25 00:02:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:02:38,169 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-25 00:02:38,170 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-25 00:02:38,171 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2023-11-25 00:02:38,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2023-11-25 00:02:38,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2023-11-25 00:02:38,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2023-11-25 00:02:38,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2023-11-25 00:02:38,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2023-11-25 00:02:38,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2023-11-25 00:02:38,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2023-11-25 00:02:38,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2023-11-25 00:02:38,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2023-11-25 00:02:38,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2023-11-25 00:02:38,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2023-11-25 00:02:38,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2023-11-25 00:02:38,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2023-11-25 00:02:38,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2023-11-25 00:02:38,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2023-11-25 00:02:38,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2023-11-25 00:02:38,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2023-11-25 00:02:38,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2023-11-25 00:02:38,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2023-11-25 00:02:38,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2023-11-25 00:02:38,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2023-11-25 00:02:38,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2023-11-25 00:02:38,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2023-11-25 00:02:38,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:38,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:38,396 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:38,401 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:02:38,430 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-25 00:02:38,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:02:38 BoogieIcfgContainer [2023-11-25 00:02:38,445 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:02:38,445 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:02:38,446 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:02:38,446 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:02:38,446 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:02:30" (3/4) ... [2023-11-25 00:02:38,447 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-25 00:02:38,452 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-25 00:02:38,488 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/witness.graphml [2023-11-25 00:02:38,488 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:02:38,489 INFO L158 Benchmark]: Toolchain (without parser) took 9068.03ms. Allocated memory is still 159.4MB. Free memory was 121.8MB in the beginning and 106.8MB in the end (delta: 15.0MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2023-11-25 00:02:38,489 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory was 80.7MB in the beginning and 80.7MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:02:38,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.25ms. Allocated memory is still 159.4MB. Free memory was 121.3MB in the beginning and 110.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-25 00:02:38,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.45ms. Allocated memory is still 159.4MB. Free memory was 110.8MB in the beginning and 109.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:02:38,490 INFO L158 Benchmark]: Boogie Preprocessor took 28.12ms. Allocated memory is still 159.4MB. Free memory was 109.1MB in the beginning and 107.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:02:38,491 INFO L158 Benchmark]: RCFGBuilder took 575.99ms. Allocated memory is still 159.4MB. Free memory was 107.6MB in the beginning and 91.8MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-25 00:02:38,491 INFO L158 Benchmark]: TraceAbstraction took 8108.37ms. Allocated memory is still 159.4MB. Free memory was 90.8MB in the beginning and 108.9MB in the end (delta: -18.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:02:38,492 INFO L158 Benchmark]: Witness Printer took 42.68ms. Allocated memory is still 159.4MB. Free memory was 108.9MB in the beginning and 106.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:02:38,494 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory was 80.7MB in the beginning and 80.7MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.25ms. Allocated memory is still 159.4MB. Free memory was 121.3MB in the beginning and 110.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.45ms. Allocated memory is still 159.4MB. Free memory was 110.8MB in the beginning and 109.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.12ms. Allocated memory is still 159.4MB. Free memory was 109.1MB in the beginning and 107.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 575.99ms. Allocated memory is still 159.4MB. Free memory was 107.6MB in the beginning and 91.8MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8108.37ms. Allocated memory is still 159.4MB. Free memory was 90.8MB in the beginning and 108.9MB in the end (delta: -18.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 42.68ms. Allocated memory is still 159.4MB. Free memory was 108.9MB in the beginning and 106.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 41]: integer overflow possible integer overflow possible We found a FailurePath: [L22] int counter = 0; [L24] unsigned int z, k; [L25] long long x, y, c; [L26] z = __VERIFIER_nondet_uint() [L27] k = __VERIFIER_nondet_uint() [L29] x = 1 [L30] y = z [L31] c = 1 VAL [c=1, counter=0, x=1, y=4294967295, z=4294967295] [L33] EXPR counter++ VAL [c=1, counter=1, x=1, y=4294967295, z=4294967295] [L33] COND TRUE counter++<2 [L34] EXPR x*z VAL [c=1, counter=1, x=1, y=4294967295, z=4294967295] [L34] EXPR x*z - x VAL [c=1, counter=1, x=1, y=4294967295, z=4294967295] [L34] EXPR x*z - x - y VAL [c=1, counter=1, x=1, y=4294967295, z=4294967295] [L34] EXPR x*z - x - y + 1 VAL [c=1, counter=1, x=1, y=4294967295, z=4294967295] [L34] CALL __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [counter=1] [L16] COND FALSE !(!(cond)) [L34] RET __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [c=1, counter=1, x=1, y=4294967295, z=4294967295] [L36] COND FALSE !(!(c < k)) VAL [c=1, counter=1, k=2, x=1, y=4294967295, z=4294967295] [L39] EXPR c + 1 [L39] c = c + 1 VAL [c=2, counter=1, k=2, x=1, y=4294967295, z=4294967295] [L40] EXPR x * z VAL [c=2, counter=1, k=2, x=1, y=4294967295, z=4294967295] [L40] EXPR x * z + 1 [L40] x = x * z + 1 VAL [c=2, counter=1, k=2, x=4294967296, y=4294967295, z=4294967295] [L41] y * z VAL [c=2, counter=1, k=2, x=4294967296, y=4294967295, z=4294967295] - UnprovableResult [Line: 33]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 33]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 39]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 39]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 58 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 8.0s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 198 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 193 mSDsluCounter, 598 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 69 IncrementalHoareTripleChecker+Unchecked, 276 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 460 IncrementalHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 322 mSDtfsCounter, 460 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=2, InterpolantAutomatonStates: 37, 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, 10 MinimizatonAttempts, 30 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 178 NumberOfCodeBlocks, 178 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 143 ConstructedInterpolants, 1 QuantifiedInterpolants, 691 SizeOfPredicates, 4 NumberOfNonLiveVariables, 467 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-25 00:02:38,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2b3c47-ddc5-49c9-ae6a-ac0ac4be381d/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)