./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 603eeec29f0f7a499f451ec7fa1906f0a8c90a729e0fc96740e12a91ea711946 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:59:58,903 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:59:59,022 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-19 04:59:59,035 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:59:59,036 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:59:59,076 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:59:59,077 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:59:59,077 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:59:59,078 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:59:59,083 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:59:59,084 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:59:59,085 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:59:59,086 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:59:59,087 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:59:59,088 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:59:59,089 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:59:59,089 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:59:59,090 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:59:59,090 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:59:59,091 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:59:59,091 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:59:59,092 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:59:59,093 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:59:59,094 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:59:59,094 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:59:59,095 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:59:59,095 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:59:59,096 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:59:59,096 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:59:59,097 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:59:59,098 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:59:59,098 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:59:59,099 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:59:59,099 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:59:59,099 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:59:59,100 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:59:59,100 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:59:59,101 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:59:59,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:59:59,102 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:59:59,102 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:59:59,102 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:59:59,103 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:59:59,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:59:59,104 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:59:59,104 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:59:59,104 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:59:59,105 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_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 603eeec29f0f7a499f451ec7fa1906f0a8c90a729e0fc96740e12a91ea711946 [2023-11-19 04:59:59,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:59:59,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:59:59,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:59:59,425 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:59:59,426 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:59:59,427 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound2.c [2023-11-19 05:00:02,588 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:00:02,839 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:00:02,839 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound2.c [2023-11-19 05:00:02,848 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/data/f52d2d4d4/63490c42417d4f09ad0d794d1b17f4ae/FLAG32ab6d83d [2023-11-19 05:00:02,865 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/data/f52d2d4d4/63490c42417d4f09ad0d794d1b17f4ae [2023-11-19 05:00:02,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:00:02,872 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:00:02,875 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:00:02,875 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:00:02,881 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:00:02,881 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:00:02" (1/1) ... [2023-11-19 05:00:02,883 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e01ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:02, skipping insertion in model container [2023-11-19 05:00:02,883 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:00:02" (1/1) ... [2023-11-19 05:00:02,909 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:00:03,117 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:00:03,128 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:00:03,164 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:00:03,179 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:00:03,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:03 WrapperNode [2023-11-19 05:00:03,180 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:00:03,181 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:00:03,181 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:00:03,181 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:00:03,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:03" (1/1) ... [2023-11-19 05:00:03,196 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:03" (1/1) ... [2023-11-19 05:00:03,227 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2023-11-19 05:00:03,228 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:00:03,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:00:03,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:00:03,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:00:03,240 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:03" (1/1) ... [2023-11-19 05:00:03,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:03" (1/1) ... [2023-11-19 05:00:03,254 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:03" (1/1) ... [2023-11-19 05:00:03,254 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:03" (1/1) ... [2023-11-19 05:00:03,258 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:03" (1/1) ... [2023-11-19 05:00:03,261 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:03" (1/1) ... [2023-11-19 05:00:03,262 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:03" (1/1) ... [2023-11-19 05:00:03,263 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:03" (1/1) ... [2023-11-19 05:00:03,265 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:00:03,266 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:00:03,267 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:00:03,267 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:00:03,276 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:03" (1/1) ... [2023-11-19 05:00:03,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:00:03,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:00:03,314 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:00:03,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:00:03,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:00:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:00:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:00:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:00:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 05:00:03,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 05:00:03,426 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:00:03,428 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:00:03,601 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:00:03,665 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:00:03,665 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 05:00:03,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:00:03 BoogieIcfgContainer [2023-11-19 05:00:03,673 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:00:03,675 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:00:03,676 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:00:03,679 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:00:03,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:00:02" (1/3) ... [2023-11-19 05:00:03,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba25acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:00:03, skipping insertion in model container [2023-11-19 05:00:03,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:03" (2/3) ... [2023-11-19 05:00:03,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba25acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:00:03, skipping insertion in model container [2023-11-19 05:00:03,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:00:03" (3/3) ... [2023-11-19 05:00:03,682 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-u_unwindbound2.c [2023-11-19 05:00:03,709 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:00:03,709 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-19 05:00:03,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:00:03,769 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;@5ef7afc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:00:03,770 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-19 05:00:03,774 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 17 states have internal predecessors, (23), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 05:00:03,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 05:00:03,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:00:03,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 05:00:03,783 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 05:00:03,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:00:03,789 INFO L85 PathProgramCache]: Analyzing trace with hash 134028, now seen corresponding path program 1 times [2023-11-19 05:00:03,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:00:03,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578088750] [2023-11-19 05:00:03,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:00:03,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:00:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:00:04,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:00:04,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:00:04,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578088750] [2023-11-19 05:00:04,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578088750] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:00:04,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:00:04,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:00:04,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525091115] [2023-11-19 05:00:04,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:00:04,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:00:04,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:00:04,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:00:04,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:00:04,205 INFO L87 Difference]: Start difference. First operand has 26 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 17 states have internal predecessors, (23), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) 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) [2023-11-19 05:00:04,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:00:04,311 INFO L93 Difference]: Finished difference Result 48 states and 64 transitions. [2023-11-19 05:00:04,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:00:04,313 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 [2023-11-19 05:00:04,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:00:04,320 INFO L225 Difference]: With dead ends: 48 [2023-11-19 05:00:04,321 INFO L226 Difference]: Without dead ends: 28 [2023-11-19 05:00:04,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:00:04,327 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 21 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:00:04,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 60 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:00:04,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-19 05:00:04,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2023-11-19 05:00:04,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 15 states have internal predecessors, (18), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 05:00:04,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2023-11-19 05:00:04,369 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 3 [2023-11-19 05:00:04,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:00:04,369 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2023-11-19 05:00:04,369 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) [2023-11-19 05:00:04,370 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2023-11-19 05:00:04,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 05:00:04,370 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:00:04,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 05:00:04,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:00:04,371 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 05:00:04,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:00:04,372 INFO L85 PathProgramCache]: Analyzing trace with hash 4154916, now seen corresponding path program 1 times [2023-11-19 05:00:04,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:00:04,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527197929] [2023-11-19 05:00:04,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:00:04,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:00:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:00:04,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:00:04,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:00:04,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527197929] [2023-11-19 05:00:04,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527197929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:00:04,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:00:04,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:00:04,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940048543] [2023-11-19 05:00:04,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:00:04,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:00:04,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:00:04,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:00:04,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:00:04,431 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:00:04,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:00:04,474 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2023-11-19 05:00:04,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:00:04,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-19 05:00:04,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:00:04,476 INFO L225 Difference]: With dead ends: 39 [2023-11-19 05:00:04,476 INFO L226 Difference]: Without dead ends: 27 [2023-11-19 05:00:04,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:00:04,478 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 3 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:00:04,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 57 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:00:04,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-19 05:00:04,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-11-19 05:00:04,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 05:00:04,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2023-11-19 05:00:04,492 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 4 [2023-11-19 05:00:04,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:00:04,493 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2023-11-19 05:00:04,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:00:04,495 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2023-11-19 05:00:04,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 05:00:04,497 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:00:04,497 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:00:04,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:00:04,498 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 05:00:04,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:00:04,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1024983950, now seen corresponding path program 1 times [2023-11-19 05:00:04,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:00:04,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836606411] [2023-11-19 05:00:04,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:00:04,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:00:04,543 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:00:04,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1804294550] [2023-11-19 05:00:04,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:00:04,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:00:04,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:00:04,546 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:00:04,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:00:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:00:04,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:00:04,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:00:04,701 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 05:00:04,702 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:00:04,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:00:04,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836606411] [2023-11-19 05:00:04,703 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 05:00:04,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804294550] [2023-11-19 05:00:04,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804294550] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:00:04,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:00:04,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:00:04,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294130616] [2023-11-19 05:00:04,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:00:04,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:00:04,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:00:04,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:00:04,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:00:04,707 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 05:00:04,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:00:04,766 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2023-11-19 05:00:04,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:00:04,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2023-11-19 05:00:04,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:00:04,768 INFO L225 Difference]: With dead ends: 27 [2023-11-19 05:00:04,768 INFO L226 Difference]: Without dead ends: 26 [2023-11-19 05:00:04,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:00:04,771 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 19 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:00:04,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 36 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:00:04,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-11-19 05:00:04,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-11-19 05:00:04,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 05:00:04,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2023-11-19 05:00:04,781 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 17 [2023-11-19 05:00:04,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:00:04,781 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2023-11-19 05:00:04,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 05:00:04,782 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2023-11-19 05:00:04,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 05:00:04,783 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:00:04,783 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:00:04,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:00:05,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:00:05,000 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 05:00:05,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:00:05,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1709731450, now seen corresponding path program 1 times [2023-11-19 05:00:05,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:00:05,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979544851] [2023-11-19 05:00:05,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:00:05,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:00:05,026 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:00:05,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [773063925] [2023-11-19 05:00:05,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:00:05,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:00:05,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:00:05,034 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:00:05,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 05:00:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:00:05,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:00:05,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:00:05,220 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 05:00:05,220 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:00:05,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:00:05,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979544851] [2023-11-19 05:00:05,225 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 05:00:05,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773063925] [2023-11-19 05:00:05,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773063925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:00:05,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:00:05,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:00:05,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277315163] [2023-11-19 05:00:05,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:00:05,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:00:05,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:00:05,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:00:05,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:00:05,234 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 05:00:05,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:00:05,355 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2023-11-19 05:00:05,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 05:00:05,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2023-11-19 05:00:05,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:00:05,357 INFO L225 Difference]: With dead ends: 31 [2023-11-19 05:00:05,357 INFO L226 Difference]: Without dead ends: 30 [2023-11-19 05:00:05,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:00:05,363 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 9 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:00:05,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 38 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:00:05,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-19 05:00:05,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2023-11-19 05:00:05,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.2) internal successors, (24), 21 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 05:00:05,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2023-11-19 05:00:05,379 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 18 [2023-11-19 05:00:05,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:00:05,379 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2023-11-19 05:00:05,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 05:00:05,380 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2023-11-19 05:00:05,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 05:00:05,384 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:00:05,384 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:00:05,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 05:00:05,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:00:05,609 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 05:00:05,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:00:05,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1709767200, now seen corresponding path program 1 times [2023-11-19 05:00:05,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:00:05,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182157006] [2023-11-19 05:00:05,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:00:05,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:00:05,626 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:00:05,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1160322400] [2023-11-19 05:00:05,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:00:05,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:00:05,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:00:05,628 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:00:05,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 05:00:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:00:05,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:00:05,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:00:05,730 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 05:00:05,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:00:05,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:00:05,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182157006] [2023-11-19 05:00:05,731 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 05:00:05,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160322400] [2023-11-19 05:00:05,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160322400] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:00:05,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:00:05,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:00:05,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697649741] [2023-11-19 05:00:05,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:00:05,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:00:05,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:00:05,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:00:05,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:00:05,738 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 05:00:05,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:00:05,795 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2023-11-19 05:00:05,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:00:05,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2023-11-19 05:00:05,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:00:05,797 INFO L225 Difference]: With dead ends: 29 [2023-11-19 05:00:05,797 INFO L226 Difference]: Without dead ends: 28 [2023-11-19 05:00:05,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:00:05,799 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 7 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:00:05,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 48 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:00:05,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-19 05:00:05,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-19 05:00:05,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 05:00:05,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2023-11-19 05:00:05,807 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 18 [2023-11-19 05:00:05,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:00:05,807 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2023-11-19 05:00:05,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 05:00:05,808 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-11-19 05:00:05,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 05:00:05,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:00:05,809 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:00:05,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:00:06,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:00:06,028 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 05:00:06,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:00:06,028 INFO L85 PathProgramCache]: Analyzing trace with hash -155770605, now seen corresponding path program 1 times [2023-11-19 05:00:06,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:00:06,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774270031] [2023-11-19 05:00:06,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:00:06,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:00:06,044 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:00:06,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [27167873] [2023-11-19 05:00:06,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:00:06,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:00:06,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:00:06,045 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:00:06,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 05:00:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:00:06,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:00:06,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:00:06,179 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 05:00:06,179 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:00:06,253 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 05:00:06,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:00:06,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774270031] [2023-11-19 05:00:06,254 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 05:00:06,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27167873] [2023-11-19 05:00:06,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27167873] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:00:06,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1013107922] [2023-11-19 05:00:06,275 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-11-19 05:00:06,275 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:00:06,279 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:00:06,285 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:00:06,286 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:00:09,183 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 15 for LOIs [2023-11-19 05:00:09,189 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 05:00:09,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1013107922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:00:09,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 05:00:09,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5, 6] total 16 [2023-11-19 05:00:09,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180560924] [2023-11-19 05:00:09,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:00:09,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 05:00:09,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:00:09,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 05:00:09,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2023-11-19 05:00:09,671 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 12 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 05:00:09,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:00:09,925 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2023-11-19 05:00:09,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 05:00:09,926 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2023-11-19 05:00:09,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:00:09,927 INFO L225 Difference]: With dead ends: 32 [2023-11-19 05:00:09,927 INFO L226 Difference]: Without dead ends: 31 [2023-11-19 05:00:09,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 46 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2023-11-19 05:00:09,928 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:00:09,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 59 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:00:09,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-19 05:00:09,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2023-11-19 05:00:09,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 05:00:09,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2023-11-19 05:00:09,938 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 22 [2023-11-19 05:00:09,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:00:09,938 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2023-11-19 05:00:09,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 05:00:09,939 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-11-19 05:00:09,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 05:00:09,940 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:00:09,940 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:00:09,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 05:00:10,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:00:10,161 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 05:00:10,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:00:10,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1032526858, now seen corresponding path program 1 times [2023-11-19 05:00:10,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:00:10,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507441039] [2023-11-19 05:00:10,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:00:10,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:00:10,185 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:00:10,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [887332816] [2023-11-19 05:00:10,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:00:10,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:00:10,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:00:10,196 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:00:10,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 05:00:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:00:10,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 05:00:10,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:00:10,315 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 05:00:10,315 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:00:10,402 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 05:00:10,402 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:00:10,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507441039] [2023-11-19 05:00:10,403 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 05:00:10,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887332816] [2023-11-19 05:00:10,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887332816] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:00:10,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1128568084] [2023-11-19 05:00:10,406 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2023-11-19 05:00:10,407 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:00:10,407 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:00:10,407 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:00:10,407 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:00:11,475 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 10 for LOIs [2023-11-19 05:00:11,478 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 05:00:12,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1128568084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:00:12,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 05:00:12,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6, 6] total 21 [2023-11-19 05:00:12,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164579964] [2023-11-19 05:00:12,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:00:12,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 05:00:12,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:00:12,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 05:00:12,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2023-11-19 05:00:12,287 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 05:00:12,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:00:12,551 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2023-11-19 05:00:12,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 05:00:12,553 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 29 [2023-11-19 05:00:12,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:00:12,555 INFO L225 Difference]: With dead ends: 53 [2023-11-19 05:00:12,555 INFO L226 Difference]: Without dead ends: 34 [2023-11-19 05:00:12,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2023-11-19 05:00:12,557 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:00:12,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:00:12,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-19 05:00:12,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-11-19 05:00:12,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 05:00:12,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2023-11-19 05:00:12,582 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 29 [2023-11-19 05:00:12,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:00:12,583 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2023-11-19 05:00:12,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 05:00:12,585 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2023-11-19 05:00:12,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 05:00:12,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:00:12,586 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:00:12,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 05:00:12,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:00:12,807 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 05:00:12,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:00:12,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1661913021, now seen corresponding path program 1 times [2023-11-19 05:00:12,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:00:12,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894004774] [2023-11-19 05:00:12,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:00:12,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:00:12,831 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:00:12,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1804110551] [2023-11-19 05:00:12,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:00:12,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:00:12,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:00:12,843 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:00:12,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 05:00:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:00:12,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:00:12,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:00:12,954 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-19 05:00:12,954 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:00:13,000 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-19 05:00:13,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:00:13,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894004774] [2023-11-19 05:00:13,000 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 05:00:13,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804110551] [2023-11-19 05:00:13,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804110551] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:00:13,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [804602601] [2023-11-19 05:00:13,005 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2023-11-19 05:00:13,005 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:00:13,005 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:00:13,005 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:00:13,006 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:00:14,474 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 15 for LOIs [2023-11-19 05:00:14,478 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 05:00:14,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [804602601] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:00:14,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 05:00:14,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5, 6] total 17 [2023-11-19 05:00:14,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675127901] [2023-11-19 05:00:14,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:00:14,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 05:00:14,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:00:14,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 05:00:14,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2023-11-19 05:00:14,926 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand has 13 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-19 05:00:15,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:00:15,148 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2023-11-19 05:00:15,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 05:00:15,149 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 33 [2023-11-19 05:00:15,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:00:15,150 INFO L225 Difference]: With dead ends: 48 [2023-11-19 05:00:15,150 INFO L226 Difference]: Without dead ends: 34 [2023-11-19 05:00:15,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 78 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2023-11-19 05:00:15,151 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:00:15,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 63 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:00:15,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-19 05:00:15,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-11-19 05:00:15,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 states have internal predecessors, (24), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 05:00:15,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2023-11-19 05:00:15,161 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 33 [2023-11-19 05:00:15,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:00:15,162 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2023-11-19 05:00:15,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-19 05:00:15,163 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2023-11-19 05:00:15,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-19 05:00:15,166 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:00:15,166 INFO L195 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:00:15,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-19 05:00:15,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:00:15,380 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 05:00:15,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:00:15,380 INFO L85 PathProgramCache]: Analyzing trace with hash 2039776122, now seen corresponding path program 1 times [2023-11-19 05:00:15,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:00:15,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178250979] [2023-11-19 05:00:15,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:00:15,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:00:15,398 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:00:15,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1214768298] [2023-11-19 05:00:15,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:00:15,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:00:15,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:00:15,403 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:00:15,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 05:00:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:00:15,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 05:00:15,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:00:15,544 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 05:00:15,544 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:00:15,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:00:15,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178250979] [2023-11-19 05:00:15,544 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 05:00:15,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214768298] [2023-11-19 05:00:15,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214768298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:00:15,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:00:15,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 05:00:15,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149138288] [2023-11-19 05:00:15,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:00:15,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 05:00:15,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:00:15,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 05:00:15,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:00:15,548 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 05:00:15,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:00:15,638 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2023-11-19 05:00:15,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 05:00:15,639 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 43 [2023-11-19 05:00:15,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:00:15,641 INFO L225 Difference]: With dead ends: 38 [2023-11-19 05:00:15,643 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 05:00:15,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-11-19 05:00:15,647 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 11 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:00:15,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 46 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:00:15,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 05:00:15,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 05:00:15,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:00:15,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 05:00:15,649 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2023-11-19 05:00:15,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:00:15,651 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 05:00:15,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 05:00:15,652 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 05:00:15,652 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 05:00:15,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-19 05:00:15,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-19 05:00:15,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-19 05:00:15,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-19 05:00:15,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 05:00:15,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:00:15,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 05:00:16,586 INFO L899 garLoopResultBuilder]: For program point L35-2(line 35) no Hoare annotation was computed. [2023-11-19 05:00:16,587 INFO L899 garLoopResultBuilder]: For program point L35-3(lines 35 43) no Hoare annotation was computed. [2023-11-19 05:00:16,587 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-19 05:00:16,588 INFO L895 garLoopResultBuilder]: At program point L35-5(lines 35 43) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (= |ULTIMATE.start_main_~q~0#1| 0))) (or (and .cse0 (<= 1 ~counter~0) .cse1 (= (mod |ULTIMATE.start_main_~r~0#1| 4294967296) (mod |ULTIMATE.start_main_~A~0#1| 4294967296)) (<= ~counter~0 2)) (let ((.cse2 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) .cse0 (= |ULTIMATE.start_main_~p~0#1| 1) (<= 1 (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) (= 2 (select |#length| 1)) (= |ULTIMATE.start_main_~B~0#1| |ULTIMATE.start_main_~d~0#1|) (= (select |#valid| 3) 1) (= 9 (select |#length| 2)) .cse1 (= ~counter~0 0) (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse2 0) 48) (= (select .cse2 1) 0))))) [2023-11-19 05:00:16,588 INFO L899 garLoopResultBuilder]: For program point L60(line 60) no Hoare annotation was computed. [2023-11-19 05:00:16,588 INFO L895 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (= |ULTIMATE.start_main_~q~0#1| 0))) (or (and .cse0 .cse1 (= ~counter~0 2)) (let ((.cse2 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) .cse0 (= |ULTIMATE.start_main_~p~0#1| 1) (<= 1 (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) (= 2 (select |#length| 1)) (= |ULTIMATE.start_main_~B~0#1| |ULTIMATE.start_main_~d~0#1|) (= (select |#valid| 3) 1) (= 9 (select |#length| 2)) .cse1 (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse2 0) 48) (= ~counter~0 1) (= (select .cse2 1) 0))))) [2023-11-19 05:00:16,589 INFO L895 garLoopResultBuilder]: At program point L36-1(line 36) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (= |ULTIMATE.start_main_~q~0#1| 0))) (or (and .cse0 .cse1 (= ~counter~0 2)) (let ((.cse2 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) .cse0 (= |ULTIMATE.start_main_~p~0#1| 1) (<= 1 (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) (= 2 (select |#length| 1)) (= |ULTIMATE.start_main_~B~0#1| |ULTIMATE.start_main_~d~0#1|) (= (select |#valid| 3) 1) (= 9 (select |#length| 2)) .cse1 (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse2 0) 48) (= ~counter~0 1) (= (select .cse2 1) 0))))) [2023-11-19 05:00:16,589 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-19 05:00:16,589 INFO L895 garLoopResultBuilder]: At program point L53-2(lines 45 57) the Hoare annotation is: (let ((.cse14 (select |#memory_int| 1))) (let ((.cse0 (= (select |#length| 3) 12)) (.cse3 (<= 1 |#StackHeapBarrier|)) (.cse4 (= 2 (select |#length| 1))) (.cse5 (= (select |#valid| 3) 1)) (.cse6 (= 9 (select |#length| 2))) (.cse7 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse8 (= (select |#valid| 1) 1)) (.cse9 (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|)) (.cse10 (= (select |#valid| 0) 0)) (.cse11 (= (select |#valid| 2) 1)) (.cse2 (mod |ULTIMATE.start_main_~r~0#1| 4294967296)) (.cse12 (= (select .cse14 0) 48)) (.cse13 (= (select .cse14 1) 0))) (or (let ((.cse1 (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) (and .cse0 (<= .cse1 .cse2) .cse3 (= |ULTIMATE.start_main_~d~0#1| (* 2 |ULTIMATE.start_main_~B~0#1|)) (<= 1 .cse1) .cse4 .cse5 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 (= ~counter~0 2))) (and (= ~counter~0 3) .cse3 .cse7) (and .cse0 .cse3 (= |ULTIMATE.start_main_~p~0#1| 1) .cse4 (= |ULTIMATE.start_main_~B~0#1| |ULTIMATE.start_main_~d~0#1|) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (<= (+ .cse2 1) (mod |ULTIMATE.start_main_~d~0#1| 4294967296)) .cse12 (= ~counter~0 1) .cse13)))) [2023-11-19 05:00:16,589 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2023-11-19 05:00:16,589 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2023-11-19 05:00:16,590 INFO L899 garLoopResultBuilder]: For program point L45-2(lines 45 57) no Hoare annotation was computed. [2023-11-19 05:00:16,590 INFO L902 garLoopResultBuilder]: At program point L45-4(lines 45 57) the Hoare annotation is: true [2023-11-19 05:00:16,590 INFO L895 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (= |ULTIMATE.start_main_~q~0#1| 0))) (or (and .cse0 .cse1 (= (mod |ULTIMATE.start_main_~r~0#1| 4294967296) (mod |ULTIMATE.start_main_~A~0#1| 4294967296)) (= ~counter~0 2)) (let ((.cse2 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) .cse0 (= |ULTIMATE.start_main_~p~0#1| 1) (<= 1 (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) (= 2 (select |#length| 1)) (= |ULTIMATE.start_main_~B~0#1| |ULTIMATE.start_main_~d~0#1|) (= (select |#valid| 3) 1) (= 9 (select |#length| 2)) .cse1 (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse2 0) 48) (= ~counter~0 1) (= (select .cse2 1) 0))))) [2023-11-19 05:00:16,590 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-19 05:00:16,590 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 05:00:16,591 INFO L895 garLoopResultBuilder]: At program point L46(line 46) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~p~0#1| 1) (= 2 (select |#length| 1)) (= |ULTIMATE.start_main_~B~0#1| |ULTIMATE.start_main_~d~0#1|) (= (select |#valid| 3) 1) (= 9 (select |#length| 2)) (= |ULTIMATE.start_main_~q~0#1| 0) (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (<= (+ (mod |ULTIMATE.start_main_~r~0#1| 4294967296) 1) (mod |ULTIMATE.start_main_~d~0#1| 4294967296)) (= (select .cse0 0) 48) (= (select .cse0 1) 0) (= ~counter~0 2))) [2023-11-19 05:00:16,598 INFO L895 garLoopResultBuilder]: At program point L46-1(line 46) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~p~0#1| 1) (= 2 (select |#length| 1)) (= |ULTIMATE.start_main_~B~0#1| |ULTIMATE.start_main_~d~0#1|) (= (select |#valid| 3) 1) (= 9 (select |#length| 2)) (= |ULTIMATE.start_main_~q~0#1| 0) (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (<= (+ (mod |ULTIMATE.start_main_~r~0#1| 4294967296) 1) (mod |ULTIMATE.start_main_~d~0#1| 4294967296)) (= (select .cse0 0) 48) (= (select .cse0 1) 0) (= ~counter~0 2))) [2023-11-19 05:00:16,598 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 05:00:16,598 INFO L899 garLoopResultBuilder]: For program point L38(lines 35 43) no Hoare annotation was computed. [2023-11-19 05:00:16,598 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-19 05:00:16,598 INFO L902 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: true [2023-11-19 05:00:16,599 INFO L899 garLoopResultBuilder]: For program point L47(lines 45 57) no Hoare annotation was computed. [2023-11-19 05:00:16,599 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2023-11-19 05:00:16,599 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2023-11-19 05:00:16,599 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 20) the Hoare annotation is: true [2023-11-19 05:00:16,603 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:00:16,605 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:00:16,623 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-19 05:00:16,624 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-19 05:00:16,625 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-19 05:00:16,625 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-19 05:00:16,626 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-19 05:00:16,626 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-19 05:00:16,626 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-19 05:00:16,626 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-19 05:00:16,626 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-19 05:00:16,632 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-19 05:00:16,633 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-19 05:00:16,633 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-19 05:00:16,634 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-19 05:00:16,634 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-19 05:00:16,634 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-19 05:00:16,634 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-19 05:00:16,634 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-19 05:00:16,634 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-19 05:00:16,635 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-19 05:00:16,635 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-19 05:00:16,635 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-19 05:00:16,635 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-19 05:00:16,636 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-19 05:00:16,637 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-19 05:00:16,637 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-19 05:00:16,638 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-19 05:00:16,638 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-19 05:00:16,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:00:16 BoogieIcfgContainer [2023-11-19 05:00:16,639 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:00:16,639 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:00:16,639 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:00:16,640 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:00:16,640 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:00:03" (3/4) ... [2023-11-19 05:00:16,642 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 05:00:16,646 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-19 05:00:16,653 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-19 05:00:16,653 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-19 05:00:16,654 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 05:00:16,654 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 05:00:16,761 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:00:16,762 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 05:00:16,762 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:00:16,762 INFO L158 Benchmark]: Toolchain (without parser) took 13890.77ms. Allocated memory was 211.8MB in the beginning and 371.2MB in the end (delta: 159.4MB). Free memory was 164.4MB in the beginning and 188.4MB in the end (delta: -23.9MB). Peak memory consumption was 136.8MB. Max. memory is 16.1GB. [2023-11-19 05:00:16,763 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 146.8MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:00:16,763 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.05ms. Allocated memory is still 211.8MB. Free memory was 164.4MB in the beginning and 153.3MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 05:00:16,763 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.06ms. Allocated memory is still 211.8MB. Free memory was 153.3MB in the beginning and 151.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:00:16,764 INFO L158 Benchmark]: Boogie Preprocessor took 35.90ms. Allocated memory is still 211.8MB. Free memory was 151.2MB in the beginning and 150.5MB in the end (delta: 703.7kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:00:16,765 INFO L158 Benchmark]: RCFGBuilder took 406.39ms. Allocated memory is still 211.8MB. Free memory was 150.5MB in the beginning and 135.1MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 05:00:16,765 INFO L158 Benchmark]: TraceAbstraction took 12963.44ms. Allocated memory was 211.8MB in the beginning and 371.2MB in the end (delta: 159.4MB). Free memory was 134.5MB in the beginning and 193.6MB in the end (delta: -59.1MB). Peak memory consumption was 103.3MB. Max. memory is 16.1GB. [2023-11-19 05:00:16,766 INFO L158 Benchmark]: Witness Printer took 122.40ms. Allocated memory is still 371.2MB. Free memory was 193.6MB in the beginning and 188.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:00:16,768 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 146.8MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 305.05ms. Allocated memory is still 211.8MB. Free memory was 164.4MB in the beginning and 153.3MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.06ms. Allocated memory is still 211.8MB. Free memory was 153.3MB in the beginning and 151.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.90ms. Allocated memory is still 211.8MB. Free memory was 151.2MB in the beginning and 150.5MB in the end (delta: 703.7kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 406.39ms. Allocated memory is still 211.8MB. Free memory was 150.5MB in the beginning and 135.1MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 12963.44ms. Allocated memory was 211.8MB in the beginning and 371.2MB in the end (delta: 159.4MB). Free memory was 134.5MB in the beginning and 193.6MB in the end (delta: -59.1MB). Peak memory consumption was 103.3MB. Max. memory is 16.1GB. * Witness Printer took 122.40ms. Allocated memory is still 371.2MB. Free memory was 193.6MB in the beginning and 188.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 12.9s, OverallIterations: 9, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 85 mSDsluCounter, 436 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 308 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 798 IncrementalHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 128 mSDtfsCounter, 798 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 359 GetRequests, 266 SyntacticMatches, 10 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=7, InterpolantAutomatonStates: 75, 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, 9 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 31 PreInvPairs, 43 NumberOfFragments, 680 HoareAnnotationTreeSize, 31 FomulaSimplifications, 816 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 142 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 259 ConstructedInterpolants, 0 QuantifiedInterpolants, 655 SizeOfPredicates, 18 NumberOfNonLiveVariables, 624 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 174/208 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 5.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 97, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 75, TOOLS_POST_TIME: 1.7s, TOOLS_POST_CALL_APPLICATIONS: 69, TOOLS_POST_CALL_TIME: 1.0s, TOOLS_POST_RETURN_APPLICATIONS: 58, TOOLS_POST_RETURN_TIME: 1.2s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 200, TOOLS_QUANTIFIERELIM_TIME: 3.9s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 221, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 95, DOMAIN_JOIN_TIME: 1.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 97, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME: 3.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 3.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 58, CALL_SUMMARIZER_CACHE_MISSES: 3, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1440, DAG_COMPRESSION_RETAINED_NODES: 220, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((1 <= counter) && (q == 0)) && ((r % 4294967296) == (A % 4294967296))) && (counter <= 2)) || ((((((p == 1) && (1 <= (B % 4294967296))) && (B == d)) && (q == 0)) && (counter == 0)) && (A == r))) - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: ((((((((((B % 4294967296) <= (r % 4294967296)) && (d == (2 * B))) && (1 <= (B % 4294967296))) && (2 == p)) && (q == 0)) && (A == r)) && (counter == 2)) || ((counter == 3) && (q == 0))) || ((((((p == 1) && (B == d)) && (q == 0)) && (A == r)) && (((r % 4294967296) + 1) <= (d % 4294967296))) && (counter == 1))) RESULT: Ultimate proved your program to be correct! [2023-11-19 05:00:16,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4394825c-f7c8-4c2b-9a66-61a6aa9654b8/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE