./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:21:54,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:21:54,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:21:55,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:21:55,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:21:55,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:21:55,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:21:55,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:21:55,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:21:55,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:21:55,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:21:55,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:21:55,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:21:55,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:21:55,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:21:55,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:21:55,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:21:55,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:21:55,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:21:55,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:21:55,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:21:55,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:21:55,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:21:55,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:21:55,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:21:55,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:21:55,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:21:55,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:21:55,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:21:55,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:21:55,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:21:55,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:21:55,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:21:55,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:21:55,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:21:55,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:21:55,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:21:55,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:21:55,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:21:55,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:21:55,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:21:55,047 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 17:21:55,081 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:21:55,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:21:55,082 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:21:55,083 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:21:55,083 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:21:55,084 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:21:55,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:21:55,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:21:55,086 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:21:55,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:21:55,087 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:21:55,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:21:55,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:21:55,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:21:55,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:21:55,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:21:55,089 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:21:55,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:21:55,089 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:21:55,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:21:55,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:21:55,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:21:55,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:21:55,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:21:55,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:21:55,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:21:55,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:21:55,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:21:55,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:21:55,093 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:21:55,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:21:55,093 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:21:55,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:21:55,094 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 [2022-11-25 17:21:55,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:21:55,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:21:55,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:21:55,420 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:21:55,420 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:21:55,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2022-11-25 17:21:58,534 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:21:58,809 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:21:58,809 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2022-11-25 17:21:58,817 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/data/b89502ed6/8d61276036b5494aa0205a9847e3f098/FLAG0ecf99caf [2022-11-25 17:21:59,134 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/data/b89502ed6/8d61276036b5494aa0205a9847e3f098 [2022-11-25 17:21:59,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:21:59,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:21:59,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:21:59,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:21:59,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:21:59,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:21:59" (1/1) ... [2022-11-25 17:21:59,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1006f5e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:59, skipping insertion in model container [2022-11-25 17:21:59,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:21:59" (1/1) ... [2022-11-25 17:21:59,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:21:59,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:21:59,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:21:59,339 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:21:59,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:21:59,376 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:21:59,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:59 WrapperNode [2022-11-25 17:21:59,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:21:59,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:21:59,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:21:59,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:21:59,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:59" (1/1) ... [2022-11-25 17:21:59,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:59" (1/1) ... [2022-11-25 17:21:59,409 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2022-11-25 17:21:59,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:21:59,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:21:59,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:21:59,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:21:59,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:59" (1/1) ... [2022-11-25 17:21:59,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:59" (1/1) ... [2022-11-25 17:21:59,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:59" (1/1) ... [2022-11-25 17:21:59,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:59" (1/1) ... [2022-11-25 17:21:59,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:59" (1/1) ... [2022-11-25 17:21:59,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:59" (1/1) ... [2022-11-25 17:21:59,430 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:59" (1/1) ... [2022-11-25 17:21:59,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:59" (1/1) ... [2022-11-25 17:21:59,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:21:59,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:21:59,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:21:59,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:21:59,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:59" (1/1) ... [2022-11-25 17:21:59,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:21:59,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:21:59,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:21:59,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:21:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:21:59,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:21:59,618 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:21:59,620 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:21:59,837 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:21:59,850 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:21:59,850 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 17:21:59,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:21:59 BoogieIcfgContainer [2022-11-25 17:21:59,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:21:59,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:21:59,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:21:59,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:21:59,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:21:59" (1/3) ... [2022-11-25 17:21:59,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4851ac0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:21:59, skipping insertion in model container [2022-11-25 17:21:59,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:59" (2/3) ... [2022-11-25 17:21:59,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4851ac0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:21:59, skipping insertion in model container [2022-11-25 17:21:59,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:21:59" (3/3) ... [2022-11-25 17:21:59,876 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2022-11-25 17:21:59,908 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:21:59,909 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 17:21:59,994 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:22:00,004 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@5b30a5d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:22:00,004 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 17:22:00,013 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.75) internal successors, (28), 22 states have internal predecessors, (28), 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) [2022-11-25 17:22:00,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 17:22:00,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:22:00,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:22:00,024 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:22:00,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:22:00,035 INFO L85 PathProgramCache]: Analyzing trace with hash 28700682, now seen corresponding path program 1 times [2022-11-25 17:22:00,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:22:00,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645443008] [2022-11-25 17:22:00,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:22:00,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:22:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:00,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:00,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:22:00,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645443008] [2022-11-25 17:22:00,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645443008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:22:00,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:22:00,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:22:00,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681081431] [2022-11-25 17:22:00,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:22:00,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:22:00,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:22:00,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:22:00,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:22:00,351 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.75) internal successors, (28), 22 states have internal predecessors, (28), 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-25 17:22:00,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:22:00,403 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2022-11-25 17:22:00,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:22:00,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-11-25 17:22:00,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:22:00,417 INFO L225 Difference]: With dead ends: 47 [2022-11-25 17:22:00,417 INFO L226 Difference]: Without dead ends: 18 [2022-11-25 17:22:00,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:22:00,426 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 18 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:22:00,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 19 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:22:00,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-25 17:22:00,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-11-25 17:22:00,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 16 states have internal predecessors, (20), 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) [2022-11-25 17:22:00,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2022-11-25 17:22:00,468 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 5 [2022-11-25 17:22:00,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:22:00,469 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2022-11-25 17:22:00,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-25 17:22:00,470 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2022-11-25 17:22:00,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 17:22:00,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:22:00,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 17:22:00,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:22:00,471 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:22:00,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:22:00,473 INFO L85 PathProgramCache]: Analyzing trace with hash 889721220, now seen corresponding path program 1 times [2022-11-25 17:22:00,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:22:00,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485091543] [2022-11-25 17:22:00,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:22:00,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:22:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:00,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:00,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:22:00,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485091543] [2022-11-25 17:22:00,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485091543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:22:00,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:22:00,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:22:00,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494163176] [2022-11-25 17:22:00,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:22:00,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:22:00,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:22:00,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:22:00,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:22:00,522 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:22:00,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:22:00,564 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2022-11-25 17:22:00,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:22:00,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-25 17:22:00,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:22:00,566 INFO L225 Difference]: With dead ends: 32 [2022-11-25 17:22:00,566 INFO L226 Difference]: Without dead ends: 30 [2022-11-25 17:22:00,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:22:00,569 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 11 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:22:00,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 25 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:22:00,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-25 17:22:00,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2022-11-25 17:22:00,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 24 states have (on average 1.5) internal successors, (36), 27 states have internal predecessors, (36), 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) [2022-11-25 17:22:00,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2022-11-25 17:22:00,578 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 6 [2022-11-25 17:22:00,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:22:00,579 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2022-11-25 17:22:00,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:22:00,579 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2022-11-25 17:22:00,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 17:22:00,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:22:00,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:22:00,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:22:00,581 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:22:00,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:22:00,582 INFO L85 PathProgramCache]: Analyzing trace with hash 295990931, now seen corresponding path program 1 times [2022-11-25 17:22:00,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:22:00,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440680546] [2022-11-25 17:22:00,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:22:00,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:22:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:00,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:00,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:22:00,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440680546] [2022-11-25 17:22:00,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440680546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:22:00,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:22:00,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:22:00,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365093054] [2022-11-25 17:22:00,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:22:00,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:22:00,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:22:00,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:22:00,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:22:00,692 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-25 17:22:00,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:22:00,734 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2022-11-25 17:22:00,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:22:00,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-11-25 17:22:00,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:22:00,743 INFO L225 Difference]: With dead ends: 35 [2022-11-25 17:22:00,743 INFO L226 Difference]: Without dead ends: 34 [2022-11-25 17:22:00,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:22:00,746 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 11 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:22:00,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 21 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:22:00,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-25 17:22:00,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 27. [2022-11-25 17:22:00,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 26 states have internal predecessors, (34), 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) [2022-11-25 17:22:00,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2022-11-25 17:22:00,762 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 8 [2022-11-25 17:22:00,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:22:00,762 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2022-11-25 17:22:00,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-25 17:22:00,763 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2022-11-25 17:22:00,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 17:22:00,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:22:00,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:22:00,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:22:00,765 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:22:00,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:22:00,765 INFO L85 PathProgramCache]: Analyzing trace with hash 585784340, now seen corresponding path program 1 times [2022-11-25 17:22:00,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:22:00,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569048421] [2022-11-25 17:22:00,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:22:00,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:22:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:00,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:00,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:22:00,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569048421] [2022-11-25 17:22:00,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569048421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:22:00,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:22:00,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:22:00,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940707949] [2022-11-25 17:22:00,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:22:00,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:22:00,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:22:00,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:22:00,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:22:00,932 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-11-25 17:22:00,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:22:00,971 INFO L93 Difference]: Finished difference Result 46 states and 60 transitions. [2022-11-25 17:22:00,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:22:00,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2022-11-25 17:22:00,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:22:00,973 INFO L225 Difference]: With dead ends: 46 [2022-11-25 17:22:00,973 INFO L226 Difference]: Without dead ends: 45 [2022-11-25 17:22:00,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:22:00,976 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 24 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:22:00,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 28 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:22:00,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-25 17:22:00,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 26. [2022-11-25 17:22:00,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 25 states have internal predecessors, (32), 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) [2022-11-25 17:22:00,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2022-11-25 17:22:00,987 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 9 [2022-11-25 17:22:00,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:22:00,988 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2022-11-25 17:22:00,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-11-25 17:22:00,989 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2022-11-25 17:22:00,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 17:22:00,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:22:00,990 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 17:22:00,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:22:00,991 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:22:00,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:22:00,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1818236155, now seen corresponding path program 1 times [2022-11-25 17:22:00,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:22:00,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047809934] [2022-11-25 17:22:00,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:22:00,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:22:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:01,084 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:01,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:22:01,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047809934] [2022-11-25 17:22:01,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047809934] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:22:01,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225561839] [2022-11-25 17:22:01,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:22:01,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:22:01,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:22:01,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:22:01,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:22:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:01,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:22:01,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:22:01,321 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:01,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:22:01,423 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:01,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225561839] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:22:01,429 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:22:01,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-25 17:22:01,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788112125] [2022-11-25 17:22:01,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:22:01,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:22:01,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:22:01,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:22:01,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:22:01,435 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 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) [2022-11-25 17:22:01,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:22:01,581 INFO L93 Difference]: Finished difference Result 68 states and 90 transitions. [2022-11-25 17:22:01,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:22:01,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 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 14 [2022-11-25 17:22:01,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:22:01,583 INFO L225 Difference]: With dead ends: 68 [2022-11-25 17:22:01,583 INFO L226 Difference]: Without dead ends: 66 [2022-11-25 17:22:01,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:22:01,587 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 38 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:22:01,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 44 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:22:01,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-25 17:22:01,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 47. [2022-11-25 17:22:01,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 46 states have internal predecessors, (60), 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) [2022-11-25 17:22:01,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 60 transitions. [2022-11-25 17:22:01,602 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 60 transitions. Word has length 14 [2022-11-25 17:22:01,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:22:01,602 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 60 transitions. [2022-11-25 17:22:01,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 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) [2022-11-25 17:22:01,603 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 60 transitions. [2022-11-25 17:22:01,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-25 17:22:01,604 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:22:01,604 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1] [2022-11-25 17:22:01,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:22:01,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:22:01,812 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:22:01,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:22:01,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1300636298, now seen corresponding path program 2 times [2022-11-25 17:22:01,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:22:01,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977868668] [2022-11-25 17:22:01,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:22:01,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:22:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:02,109 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:02,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:22:02,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977868668] [2022-11-25 17:22:02,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977868668] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:22:02,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344205819] [2022-11-25 17:22:02,111 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:22:02,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:22:02,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:22:02,113 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:22:02,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:22:02,187 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:22:02,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:22:02,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:22:02,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:22:02,308 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:02,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:22:02,453 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:02,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344205819] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:22:02,454 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:22:02,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-25 17:22:02,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530737693] [2022-11-25 17:22:02,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:22:02,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 17:22:02,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:22:02,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:22:02,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:22:02,458 INFO L87 Difference]: Start difference. First operand 47 states and 60 transitions. Second operand has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 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) [2022-11-25 17:22:02,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:22:02,668 INFO L93 Difference]: Finished difference Result 195 states and 264 transitions. [2022-11-25 17:22:02,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:22:02,668 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 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 29 [2022-11-25 17:22:02,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:22:02,677 INFO L225 Difference]: With dead ends: 195 [2022-11-25 17:22:02,677 INFO L226 Difference]: Without dead ends: 193 [2022-11-25 17:22:02,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:22:02,686 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 158 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:22:02,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 92 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:22:02,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-11-25 17:22:02,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 113. [2022-11-25 17:22:02,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 111 states have (on average 1.2972972972972974) internal successors, (144), 112 states have internal predecessors, (144), 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) [2022-11-25 17:22:02,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 144 transitions. [2022-11-25 17:22:02,723 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 144 transitions. Word has length 29 [2022-11-25 17:22:02,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:22:02,724 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 144 transitions. [2022-11-25 17:22:02,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 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) [2022-11-25 17:22:02,725 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 144 transitions. [2022-11-25 17:22:02,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-25 17:22:02,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:22:02,727 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 1, 1, 1, 1, 1] [2022-11-25 17:22:02,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:22:02,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-25 17:22:02,933 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:22:02,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:22:02,934 INFO L85 PathProgramCache]: Analyzing trace with hash 13070742, now seen corresponding path program 3 times [2022-11-25 17:22:02,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:22:02,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086814744] [2022-11-25 17:22:02,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:22:02,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:22:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:03,419 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:03,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:22:03,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086814744] [2022-11-25 17:22:03,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086814744] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:22:03,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771047102] [2022-11-25 17:22:03,421 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:22:03,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:22:03,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:22:03,423 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:22:03,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:22:03,514 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-25 17:22:03,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:22:03,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 17:22:03,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:22:03,710 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:03,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:22:04,115 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:04,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771047102] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:22:04,116 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:22:04,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-25 17:22:04,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051490196] [2022-11-25 17:22:04,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:22:04,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-25 17:22:04,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:22:04,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-25 17:22:04,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-25 17:22:04,123 INFO L87 Difference]: Start difference. First operand 113 states and 144 transitions. Second operand has 24 states, 23 states have (on average 5.086956521739131) internal successors, (117), 24 states have internal predecessors, (117), 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) [2022-11-25 17:22:04,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:22:04,550 INFO L93 Difference]: Finished difference Result 606 states and 813 transitions. [2022-11-25 17:22:04,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 17:22:04,552 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.086956521739131) internal successors, (117), 24 states have internal predecessors, (117), 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 59 [2022-11-25 17:22:04,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:22:04,556 INFO L225 Difference]: With dead ends: 606 [2022-11-25 17:22:04,556 INFO L226 Difference]: Without dead ends: 604 [2022-11-25 17:22:04,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-25 17:22:04,560 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 567 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:22:04,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 188 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:22:04,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2022-11-25 17:22:04,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 245. [2022-11-25 17:22:04,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 243 states have (on average 1.2839506172839505) internal successors, (312), 244 states have internal predecessors, (312), 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) [2022-11-25 17:22:04,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 312 transitions. [2022-11-25 17:22:04,625 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 312 transitions. Word has length 59 [2022-11-25 17:22:04,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:22:04,628 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 312 transitions. [2022-11-25 17:22:04,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.086956521739131) internal successors, (117), 24 states have internal predecessors, (117), 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) [2022-11-25 17:22:04,629 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 312 transitions. [2022-11-25 17:22:04,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-25 17:22:04,639 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:22:04,640 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 1, 1, 1, 1, 1] [2022-11-25 17:22:04,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:22:04,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:22:04,841 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:22:04,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:22:04,841 INFO L85 PathProgramCache]: Analyzing trace with hash 528396758, now seen corresponding path program 4 times [2022-11-25 17:22:04,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:22:04,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903632702] [2022-11-25 17:22:04,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:22:04,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:22:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:05,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:05,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:22:05,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903632702] [2022-11-25 17:22:05,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903632702] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:22:05,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577186496] [2022-11-25 17:22:05,790 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 17:22:05,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:22:05,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:22:05,792 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:22:05,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:22:05,895 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 17:22:05,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:22:05,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-25 17:22:05,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:22:06,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:06,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:22:07,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:07,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577186496] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:22:07,352 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:22:07,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-25 17:22:07,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529391485] [2022-11-25 17:22:07,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:22:07,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-25 17:22:07,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:22:07,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-25 17:22:07,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-25 17:22:07,357 INFO L87 Difference]: Start difference. First operand 245 states and 312 transitions. Second operand has 48 states, 47 states have (on average 5.042553191489362) internal successors, (237), 48 states have internal predecessors, (237), 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) [2022-11-25 17:22:08,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:22:08,340 INFO L93 Difference]: Finished difference Result 2022 states and 2667 transitions. [2022-11-25 17:22:08,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-25 17:22:08,341 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.042553191489362) internal successors, (237), 48 states have internal predecessors, (237), 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 119 [2022-11-25 17:22:08,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:22:08,348 INFO L225 Difference]: With dead ends: 2022 [2022-11-25 17:22:08,349 INFO L226 Difference]: Without dead ends: 2020 [2022-11-25 17:22:08,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-25 17:22:08,352 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1107 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:22:08,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 384 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 17:22:08,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2020 states. [2022-11-25 17:22:08,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2020 to 509. [2022-11-25 17:22:08,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 507 states have (on average 1.2781065088757397) internal successors, (648), 508 states have internal predecessors, (648), 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) [2022-11-25 17:22:08,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 648 transitions. [2022-11-25 17:22:08,401 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 648 transitions. Word has length 119 [2022-11-25 17:22:08,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:22:08,401 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 648 transitions. [2022-11-25 17:22:08,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.042553191489362) internal successors, (237), 48 states have internal predecessors, (237), 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) [2022-11-25 17:22:08,402 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 648 transitions. [2022-11-25 17:22:08,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-11-25 17:22:08,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:22:08,405 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 1, 1, 1, 1, 1] [2022-11-25 17:22:08,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:22:08,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:22:08,612 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:22:08,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:22:08,612 INFO L85 PathProgramCache]: Analyzing trace with hash -669674922, now seen corresponding path program 5 times [2022-11-25 17:22:08,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:22:08,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949946823] [2022-11-25 17:22:08,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:22:08,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:22:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:11,720 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:11,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:22:11,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949946823] [2022-11-25 17:22:11,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949946823] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:22:11,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710518255] [2022-11-25 17:22:11,721 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-25 17:22:11,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:22:11,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:22:11,723 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:22:11,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:22:11,940 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-25 17:22:11,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:22:11,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-25 17:22:11,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:22:12,412 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:12,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:22:16,533 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:16,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710518255] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:22:16,534 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:22:16,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-11-25 17:22:16,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315701925] [2022-11-25 17:22:16,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:22:16,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-25 17:22:16,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:22:16,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-25 17:22:16,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-25 17:22:16,543 INFO L87 Difference]: Start difference. First operand 509 states and 648 transitions. Second operand has 96 states, 95 states have (on average 5.021052631578947) internal successors, (477), 96 states have internal predecessors, (477), 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) [2022-11-25 17:22:21,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:22:21,490 INFO L93 Difference]: Finished difference Result 7230 states and 9399 transitions. [2022-11-25 17:22:21,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-25 17:22:21,491 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.021052631578947) internal successors, (477), 96 states have internal predecessors, (477), 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 239 [2022-11-25 17:22:21,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:22:21,514 INFO L225 Difference]: With dead ends: 7230 [2022-11-25 17:22:21,515 INFO L226 Difference]: Without dead ends: 7228 [2022-11-25 17:22:21,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-25 17:22:21,522 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 2902 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2902 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:22:21,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2902 Valid, 770 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 17:22:21,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7228 states. [2022-11-25 17:22:21,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7228 to 1037. [2022-11-25 17:22:21,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 1035 states have (on average 1.2753623188405796) internal successors, (1320), 1036 states have internal predecessors, (1320), 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) [2022-11-25 17:22:21,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1320 transitions. [2022-11-25 17:22:21,618 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1320 transitions. Word has length 239 [2022-11-25 17:22:21,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:22:21,619 INFO L495 AbstractCegarLoop]: Abstraction has 1037 states and 1320 transitions. [2022-11-25 17:22:21,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.021052631578947) internal successors, (477), 96 states have internal predecessors, (477), 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) [2022-11-25 17:22:21,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1320 transitions. [2022-11-25 17:22:21,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2022-11-25 17:22:21,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:22:21,633 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 1, 1, 1, 1, 1] [2022-11-25 17:22:21,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:22:21,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:22:21,839 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:22:21,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:22:21,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1873072982, now seen corresponding path program 6 times [2022-11-25 17:22:21,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:22:21,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443767809] [2022-11-25 17:22:21,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:22:21,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:22:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:30,783 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:30,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:22:30,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443767809] [2022-11-25 17:22:30,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443767809] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:22:30,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541365524] [2022-11-25 17:22:30,784 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-25 17:22:30,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:22:30,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:22:30,795 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:22:30,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 17:22:31,236 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-11-25 17:22:31,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:22:31,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-25 17:22:31,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:22:32,105 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:32,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:22:44,270 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:22:44,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541365524] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:22:44,271 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:22:44,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-11-25 17:22:44,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112290205] [2022-11-25 17:22:44,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:22:44,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-11-25 17:22:44,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:22:44,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-11-25 17:22:44,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-25 17:22:44,299 INFO L87 Difference]: Start difference. First operand 1037 states and 1320 transitions. Second operand has 192 states, 191 states have (on average 5.010471204188482) internal successors, (957), 192 states have internal predecessors, (957), 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) [2022-11-25 17:23:15,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:23:15,897 INFO L93 Difference]: Finished difference Result 27150 states and 34959 transitions. [2022-11-25 17:23:15,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-11-25 17:23:15,899 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 5.010471204188482) internal successors, (957), 192 states have internal predecessors, (957), 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 479 [2022-11-25 17:23:15,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:23:15,975 INFO L225 Difference]: With dead ends: 27150 [2022-11-25 17:23:15,975 INFO L226 Difference]: Without dead ends: 27148 [2022-11-25 17:23:15,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1052 GetRequests, 862 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-25 17:23:15,990 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 6768 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 956 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6768 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 2116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 956 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:23:15,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6768 Valid, 1539 Invalid, 2116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [956 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 17:23:16,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27148 states. [2022-11-25 17:23:16,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27148 to 2093. [2022-11-25 17:23:16,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2093 states, 2091 states have (on average 1.2740315638450501) internal successors, (2664), 2092 states have internal predecessors, (2664), 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) [2022-11-25 17:23:16,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2093 states to 2093 states and 2664 transitions. [2022-11-25 17:23:16,413 INFO L78 Accepts]: Start accepts. Automaton has 2093 states and 2664 transitions. Word has length 479 [2022-11-25 17:23:16,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:23:16,414 INFO L495 AbstractCegarLoop]: Abstraction has 2093 states and 2664 transitions. [2022-11-25 17:23:16,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 5.010471204188482) internal successors, (957), 192 states have internal predecessors, (957), 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) [2022-11-25 17:23:16,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2093 states and 2664 transitions. [2022-11-25 17:23:16,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 960 [2022-11-25 17:23:16,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:23:16,465 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 190, 1, 1, 1, 1, 1] [2022-11-25 17:23:16,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:23:16,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 17:23:16,672 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:23:16,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:23:16,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1179211094, now seen corresponding path program 7 times [2022-11-25 17:23:16,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:23:16,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596960818] [2022-11-25 17:23:16,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:23:16,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:23:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:49,803 INFO L134 CoverageAnalysis]: Checked inductivity of 90725 backedges. 0 proven. 90725 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:23:49,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:23:49,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596960818] [2022-11-25 17:23:49,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596960818] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:23:49,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975382845] [2022-11-25 17:23:49,804 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-25 17:23:49,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:23:49,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:23:49,811 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:23:49,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 17:23:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 1922 conjuncts, 192 conjunts are in the unsatisfiable core [2022-11-25 17:23:50,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:23:52,067 INFO L134 CoverageAnalysis]: Checked inductivity of 90725 backedges. 0 proven. 90725 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:23:52,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:24:39,555 INFO L134 CoverageAnalysis]: Checked inductivity of 90725 backedges. 0 proven. 90725 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:24:39,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975382845] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:24:39,556 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:24:39,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-11-25 17:24:39,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074129863] [2022-11-25 17:24:39,557 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:24:39,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-11-25 17:24:39,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:39,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-11-25 17:24:39,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-11-25 17:24:39,604 INFO L87 Difference]: Start difference. First operand 2093 states and 2664 transitions. Second operand has 384 states, 383 states have (on average 5.005221932114883) internal successors, (1917), 384 states have internal predecessors, (1917), 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) [2022-11-25 17:32:17,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:32:17,349 INFO L93 Difference]: Finished difference Result 105006 states and 134463 transitions. [2022-11-25 17:32:17,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-11-25 17:32:17,351 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 5.005221932114883) internal successors, (1917), 384 states have internal predecessors, (1917), 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 959 [2022-11-25 17:32:17,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:32:17,555 INFO L225 Difference]: With dead ends: 105006 [2022-11-25 17:32:17,555 INFO L226 Difference]: Without dead ends: 105004 [2022-11-25 17:32:17,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2108 GetRequests, 1726 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 60.7s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-11-25 17:32:17,645 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 16032 mSDsluCounter, 3063 mSDsCounter, 0 mSdLazyCounter, 2314 mSolverCounterSat, 2312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16032 SdHoareTripleChecker+Valid, 3075 SdHoareTripleChecker+Invalid, 4626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2312 IncrementalHoareTripleChecker+Valid, 2314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:32:17,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16032 Valid, 3075 Invalid, 4626 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2312 Valid, 2314 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-25 17:32:17,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105004 states. [2022-11-25 17:32:18,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105004 to 4205. [2022-11-25 17:32:18,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4205 states, 4203 states have (on average 1.2733761598857958) internal successors, (5352), 4204 states have internal predecessors, (5352), 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) [2022-11-25 17:32:18,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4205 states to 4205 states and 5352 transitions. [2022-11-25 17:32:18,969 INFO L78 Accepts]: Start accepts. Automaton has 4205 states and 5352 transitions. Word has length 959 [2022-11-25 17:32:18,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:32:18,971 INFO L495 AbstractCegarLoop]: Abstraction has 4205 states and 5352 transitions. [2022-11-25 17:32:18,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 5.005221932114883) internal successors, (1917), 384 states have internal predecessors, (1917), 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) [2022-11-25 17:32:18,972 INFO L276 IsEmpty]: Start isEmpty. Operand 4205 states and 5352 transitions. [2022-11-25 17:32:19,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1920 [2022-11-25 17:32:19,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:32:19,005 INFO L195 NwaCegarLoop]: trace histogram [383, 383, 383, 383, 382, 1, 1, 1, 1, 1] [2022-11-25 17:32:19,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:32:19,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:32:19,214 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:32:19,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:32:19,215 INFO L85 PathProgramCache]: Analyzing trace with hash 27941206, now seen corresponding path program 8 times [2022-11-25 17:32:19,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:32:19,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714433593] [2022-11-25 17:32:19,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:32:19,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:32:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:35:01,775 INFO L134 CoverageAnalysis]: Checked inductivity of 365765 backedges. 0 proven. 365765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:35:01,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:35:01,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714433593] [2022-11-25 17:35:01,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714433593] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:35:01,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999767875] [2022-11-25 17:35:01,776 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:35:01,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:35:01,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:35:01,783 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:35:01,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242009d6-eda9-44d5-9254-1137be1cc46d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 17:35:02,503 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:35:02,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:35:02,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 3842 conjuncts, 384 conjunts are in the unsatisfiable core [2022-11-25 17:35:02,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:35:05,402 INFO L134 CoverageAnalysis]: Checked inductivity of 365765 backedges. 0 proven. 365765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:35:05,402 INFO L328 TraceCheckSpWp]: Computing backward predicates...