./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/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_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/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_fd9f6339-0935-42a3-971a-3e0503ecf321/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 1978406b317087fc6936fcfda9d4ee773e4c87c61c4595e0ff4751e61b0b216a --- 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 17:30:36,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:30:36,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:30:37,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:30:37,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:30:37,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:30:37,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:30:37,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:30:37,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:30:37,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:30:37,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:30:37,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:30:37,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:30:37,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:30:37,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:30:37,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:30:37,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:30:37,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:30:37,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:30:37,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:30:37,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:30:37,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:30:37,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:30:37,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:30:37,081 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:30:37,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:30:37,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:30:37,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:30:37,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:30:37,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:30:37,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:30:37,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:30:37,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:30:37,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:30:37,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:30:37,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:30:37,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:30:37,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:30:37,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:30:37,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:30:37,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:30:37,104 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 17:30:37,145 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:30:37,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:30:37,146 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:30:37,146 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:30:37,147 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:30:37,148 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:30:37,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:30:37,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:30:37,149 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:30:37,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:30:37,150 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:30:37,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:30:37,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:30:37,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:30:37,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:30:37,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:30:37,152 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:30:37,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:30:37,152 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:30:37,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:30:37,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:30:37,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:30:37,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:30:37,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:30:37,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:30:37,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:30:37,154 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:30:37,154 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:30:37,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:30:37,155 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:30:37,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:30:37,156 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:30:37,156 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:30:37,156 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_fd9f6339-0935-42a3-971a-3e0503ecf321/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1978406b317087fc6936fcfda9d4ee773e4c87c61c4595e0ff4751e61b0b216a [2022-11-25 17:30:37,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:30:37,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:30:37,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:30:37,492 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:30:37,493 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:30:37,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c [2022-11-25 17:30:40,810 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:30:41,099 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:30:41,100 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random2d.c [2022-11-25 17:30:41,107 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/data/49f81c0ea/43bddd257e5e4781b1728c2d26212185/FLAGfe14e8f5c [2022-11-25 17:30:41,125 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/data/49f81c0ea/43bddd257e5e4781b1728c2d26212185 [2022-11-25 17:30:41,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:30:41,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:30:41,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:30:41,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:30:41,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:30:41,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:30:41" (1/1) ... [2022-11-25 17:30:41,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78c4f243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:41, skipping insertion in model container [2022-11-25 17:30:41,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:30:41" (1/1) ... [2022-11-25 17:30:41,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:30:41,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:30:41,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:30:41,376 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:30:41,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:30:41,407 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:30:41,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:41 WrapperNode [2022-11-25 17:30:41,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:30:41,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:30:41,409 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:30:41,409 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:30:41,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:41" (1/1) ... [2022-11-25 17:30:41,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:41" (1/1) ... [2022-11-25 17:30:41,438 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2022-11-25 17:30:41,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:30:41,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:30:41,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:30:41,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:30:41,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:41" (1/1) ... [2022-11-25 17:30:41,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:41" (1/1) ... [2022-11-25 17:30:41,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:41" (1/1) ... [2022-11-25 17:30:41,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:41" (1/1) ... [2022-11-25 17:30:41,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:41" (1/1) ... [2022-11-25 17:30:41,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:41" (1/1) ... [2022-11-25 17:30:41,457 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:41" (1/1) ... [2022-11-25 17:30:41,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:41" (1/1) ... [2022-11-25 17:30:41,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:30:41,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:30:41,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:30:41,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:30:41,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:41" (1/1) ... [2022-11-25 17:30:41,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:30:41,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:30:41,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:30:41,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:30:41,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:30:41,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:30:41,617 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:30:41,619 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:30:41,816 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:30:41,823 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:30:41,823 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:30:41,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:30:41 BoogieIcfgContainer [2022-11-25 17:30:41,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:30:41,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:30:41,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:30:41,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:30:41,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:30:41" (1/3) ... [2022-11-25 17:30:41,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d4de6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:30:41, skipping insertion in model container [2022-11-25 17:30:41,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:41" (2/3) ... [2022-11-25 17:30:41,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d4de6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:30:41, skipping insertion in model container [2022-11-25 17:30:41,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:30:41" (3/3) ... [2022-11-25 17:30:41,848 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-random2d.c [2022-11-25 17:30:41,867 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:30:41,867 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-25 17:30:41,953 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:30:41,974 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;@f4a7c82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:30:41,974 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-25 17:30:41,996 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 31 states have internal predecessors, (38), 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 17:30:42,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 17:30:42,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:30:42,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 17:30:42,003 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:30:42,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:42,009 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-11-25 17:30:42,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:30:42,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478306777] [2022-11-25 17:30:42,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:42,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:30:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:42,176 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 17:30:42,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:30:42,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478306777] [2022-11-25 17:30:42,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478306777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:30:42,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:30:42,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:30:42,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090913029] [2022-11-25 17:30:42,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:30:42,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:30:42,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:30:42,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:30:42,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:30:42,217 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 31 states have internal predecessors, (38), 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 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:30:42,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:30:42,244 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2022-11-25 17:30:42,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:30:42,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-25 17:30:42,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:30:42,255 INFO L225 Difference]: With dead ends: 36 [2022-11-25 17:30:42,256 INFO L226 Difference]: Without dead ends: 27 [2022-11-25 17:30:42,259 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 17:30:42,262 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 32 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:30:42,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 32 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:30:42,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-25 17:30:42,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-25 17:30:42,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 26 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 17:30:42,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2022-11-25 17:30:42,298 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 4 [2022-11-25 17:30:42,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:30:42,298 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2022-11-25 17:30:42,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:30:42,299 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-11-25 17:30:42,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 17:30:42,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:30:42,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:30:42,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:30:42,301 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:30:42,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:42,302 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2022-11-25 17:30:42,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:30:42,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484923897] [2022-11-25 17:30:42,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:42,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:30:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:42,330 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 17:30:42,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:30:42,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484923897] [2022-11-25 17:30:42,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484923897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:30:42,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:30:42,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:30:42,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202869700] [2022-11-25 17:30:42,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:30:42,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:30:42,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:30:42,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:30:42,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:30:42,335 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. 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 17:30:42,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:30:42,351 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2022-11-25 17:30:42,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:30:42,352 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 17:30:42,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:30:42,353 INFO L225 Difference]: With dead ends: 31 [2022-11-25 17:30:42,353 INFO L226 Difference]: Without dead ends: 30 [2022-11-25 17:30:42,354 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 17:30:42,355 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:30:42,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:30:42,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-25 17:30:42,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-25 17:30:42,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 29 states have internal predecessors, (35), 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 17:30:42,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2022-11-25 17:30:42,362 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 5 [2022-11-25 17:30:42,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:30:42,362 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2022-11-25 17:30:42,363 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 17:30:42,363 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2022-11-25 17:30:42,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 17:30:42,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:30:42,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:30:42,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:30:42,365 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:30:42,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:42,366 INFO L85 PathProgramCache]: Analyzing trace with hash 294944169, now seen corresponding path program 1 times [2022-11-25 17:30:42,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:30:42,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047789145] [2022-11-25 17:30:42,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:42,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:30:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:42,454 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 17:30:42,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:30:42,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047789145] [2022-11-25 17:30:42,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047789145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:30:42,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:30:42,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:30:42,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250937711] [2022-11-25 17:30:42,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:30:42,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:30:42,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:30:42,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:30:42,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:30:42,459 INFO L87 Difference]: Start difference. First operand 30 states and 35 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 17:30:42,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:30:42,492 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2022-11-25 17:30:42,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:30:42,493 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 17:30:42,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:30:42,495 INFO L225 Difference]: With dead ends: 53 [2022-11-25 17:30:42,495 INFO L226 Difference]: Without dead ends: 51 [2022-11-25 17:30:42,495 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 17:30:42,497 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 21 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:30:42,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:30:42,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-25 17:30:42,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45. [2022-11-25 17:30:42,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 44 states have internal predecessors, (61), 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 17:30:42,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 61 transitions. [2022-11-25 17:30:42,506 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 61 transitions. Word has length 8 [2022-11-25 17:30:42,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:30:42,507 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 61 transitions. [2022-11-25 17:30:42,507 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 17:30:42,508 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2022-11-25 17:30:42,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 17:30:42,508 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:30:42,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:30:42,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:30:42,509 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:30:42,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:42,510 INFO L85 PathProgramCache]: Analyzing trace with hash 553334702, now seen corresponding path program 1 times [2022-11-25 17:30:42,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:30:42,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361287453] [2022-11-25 17:30:42,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:42,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:30:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:42,559 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 17:30:42,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:30:42,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361287453] [2022-11-25 17:30:42,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361287453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:30:42,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:30:42,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:30:42,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317428652] [2022-11-25 17:30:42,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:30:42,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:30:42,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:30:42,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:30:42,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:30:42,567 INFO L87 Difference]: Start difference. First operand 45 states and 61 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 17:30:42,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:30:42,626 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2022-11-25 17:30:42,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:30:42,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 17:30:42,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:30:42,629 INFO L225 Difference]: With dead ends: 83 [2022-11-25 17:30:42,631 INFO L226 Difference]: Without dead ends: 81 [2022-11-25 17:30:42,631 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 17:30:42,633 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 20 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:30:42,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:30:42,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-25 17:30:42,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2022-11-25 17:30:42,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 67 states have (on average 1.7014925373134329) internal successors, (114), 75 states have internal predecessors, (114), 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 17:30:42,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 114 transitions. [2022-11-25 17:30:42,659 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 114 transitions. Word has length 9 [2022-11-25 17:30:42,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:30:42,659 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 114 transitions. [2022-11-25 17:30:42,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 17:30:42,661 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 114 transitions. [2022-11-25 17:30:42,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 17:30:42,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:30:42,662 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-25 17:30:42,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:30:42,663 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:30:42,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:42,665 INFO L85 PathProgramCache]: Analyzing trace with hash 554486621, now seen corresponding path program 1 times [2022-11-25 17:30:42,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:30:42,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254956234] [2022-11-25 17:30:42,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:42,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:30:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:42,717 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:42,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:30:42,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254956234] [2022-11-25 17:30:42,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254956234] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:30:42,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400800367] [2022-11-25 17:30:42,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:42,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:30:42,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:30:42,722 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:30:42,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:30:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:42,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:30:42,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:30:42,847 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:42,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:30:42,912 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:42,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400800367] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:30:42,912 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:30:42,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-25 17:30:42,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106365677] [2022-11-25 17:30:42,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:30:42,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:30:42,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:30:42,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:30:42,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:30:42,915 INFO L87 Difference]: Start difference. First operand 76 states and 114 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 17:30:42,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:30:42,961 INFO L93 Difference]: Finished difference Result 231 states and 342 transitions. [2022-11-25 17:30:42,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:30:42,962 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 17:30:42,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:30:42,964 INFO L225 Difference]: With dead ends: 231 [2022-11-25 17:30:42,968 INFO L226 Difference]: Without dead ends: 230 [2022-11-25 17:30:42,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 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 17:30:42,969 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 97 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:30:42,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 131 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:30:42,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-11-25 17:30:43,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 210. [2022-11-25 17:30:43,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 201 states have (on average 1.6467661691542288) internal successors, (331), 209 states have internal predecessors, (331), 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 17:30:43,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 331 transitions. [2022-11-25 17:30:43,009 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 331 transitions. Word has length 9 [2022-11-25 17:30:43,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:30:43,010 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 331 transitions. [2022-11-25 17:30:43,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 17:30:43,010 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 331 transitions. [2022-11-25 17:30:43,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 17:30:43,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:30:43,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:30:43,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:30:43,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:30:43,217 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:30:43,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:43,218 INFO L85 PathProgramCache]: Analyzing trace with hash -26301678, now seen corresponding path program 1 times [2022-11-25 17:30:43,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:30:43,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967635813] [2022-11-25 17:30:43,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:43,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:30:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:43,254 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 17:30:43,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:30:43,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967635813] [2022-11-25 17:30:43,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967635813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:30:43,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:30:43,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:30:43,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704225460] [2022-11-25 17:30:43,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:30:43,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:30:43,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:30:43,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:30:43,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:30:43,258 INFO L87 Difference]: Start difference. First operand 210 states and 331 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:30:43,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:30:43,314 INFO L93 Difference]: Finished difference Result 354 states and 555 transitions. [2022-11-25 17:30:43,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:30:43,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-25 17:30:43,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:30:43,317 INFO L225 Difference]: With dead ends: 354 [2022-11-25 17:30:43,319 INFO L226 Difference]: Without dead ends: 352 [2022-11-25 17:30:43,320 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 17:30:43,321 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 19 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:30:43,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:30:43,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-11-25 17:30:43,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 339. [2022-11-25 17:30:43,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 330 states have (on average 1.5606060606060606) internal successors, (515), 338 states have internal predecessors, (515), 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 17:30:43,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 515 transitions. [2022-11-25 17:30:43,380 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 515 transitions. Word has length 10 [2022-11-25 17:30:43,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:30:43,381 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 515 transitions. [2022-11-25 17:30:43,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:30:43,382 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 515 transitions. [2022-11-25 17:30:43,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 17:30:43,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:30:43,383 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:30:43,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:30:43,384 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:30:43,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:43,384 INFO L85 PathProgramCache]: Analyzing trace with hash -815351945, now seen corresponding path program 1 times [2022-11-25 17:30:43,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:30:43,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013142781] [2022-11-25 17:30:43,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:43,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:30:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:43,423 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 17:30:43,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:30:43,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013142781] [2022-11-25 17:30:43,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013142781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:30:43,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:30:43,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:30:43,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363764472] [2022-11-25 17:30:43,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:30:43,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:30:43,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:30:43,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:30:43,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:30:43,427 INFO L87 Difference]: Start difference. First operand 339 states and 515 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:30:43,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:30:43,496 INFO L93 Difference]: Finished difference Result 565 states and 856 transitions. [2022-11-25 17:30:43,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:30:43,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-25 17:30:43,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:30:43,499 INFO L225 Difference]: With dead ends: 565 [2022-11-25 17:30:43,500 INFO L226 Difference]: Without dead ends: 563 [2022-11-25 17:30:43,501 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 17:30:43,502 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 18 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:30:43,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:30:43,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-11-25 17:30:43,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 558. [2022-11-25 17:30:43,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 549 states have (on average 1.5009107468123861) internal successors, (824), 557 states have internal predecessors, (824), 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 17:30:43,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 824 transitions. [2022-11-25 17:30:43,575 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 824 transitions. Word has length 11 [2022-11-25 17:30:43,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:30:43,576 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 824 transitions. [2022-11-25 17:30:43,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:30:43,576 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 824 transitions. [2022-11-25 17:30:43,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 17:30:43,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:30:43,577 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-25 17:30:43,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:30:43,578 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:30:43,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:43,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1624899006, now seen corresponding path program 1 times [2022-11-25 17:30:43,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:30:43,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855806848] [2022-11-25 17:30:43,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:43,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:30:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:43,699 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:43,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:30:43,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855806848] [2022-11-25 17:30:43,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855806848] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:30:43,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478934080] [2022-11-25 17:30:43,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:43,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:30:43,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:30:43,703 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:30:43,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:30:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:43,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:30:43,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:30:43,797 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:43,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:30:43,862 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:43,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478934080] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:30:43,863 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:30:43,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-25 17:30:43,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090940335] [2022-11-25 17:30:43,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:30:43,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:30:43,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:30:43,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:30:43,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:30:43,865 INFO L87 Difference]: Start difference. First operand 558 states and 824 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 17:30:43,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:30:43,944 INFO L93 Difference]: Finished difference Result 1058 states and 1611 transitions. [2022-11-25 17:30:43,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:30:43,945 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 16 [2022-11-25 17:30:43,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:30:43,949 INFO L225 Difference]: With dead ends: 1058 [2022-11-25 17:30:43,955 INFO L226 Difference]: Without dead ends: 1056 [2022-11-25 17:30:43,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 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 17:30:43,958 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 92 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:30:43,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 117 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:30:43,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2022-11-25 17:30:44,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 916. [2022-11-25 17:30:44,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 907 states have (on average 1.5203969128996693) internal successors, (1379), 915 states have internal predecessors, (1379), 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 17:30:44,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1379 transitions. [2022-11-25 17:30:44,015 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1379 transitions. Word has length 16 [2022-11-25 17:30:44,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:30:44,016 INFO L495 AbstractCegarLoop]: Abstraction has 916 states and 1379 transitions. [2022-11-25 17:30:44,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 17:30:44,016 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1379 transitions. [2022-11-25 17:30:44,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 17:30:44,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:30:44,023 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:30:44,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-25 17:30:44,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:30:44,232 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:30:44,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:44,232 INFO L85 PathProgramCache]: Analyzing trace with hash -82971117, now seen corresponding path program 1 times [2022-11-25 17:30:44,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:30:44,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958198302] [2022-11-25 17:30:44,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:44,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:30:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:44,300 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 17:30:44,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:30:44,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958198302] [2022-11-25 17:30:44,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958198302] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:30:44,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727492208] [2022-11-25 17:30:44,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:44,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:30:44,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:30:44,303 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:30:44,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:30:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:44,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:30:44,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:30:44,395 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 17:30:44,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:30:44,468 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 17:30:44,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727492208] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:30:44,470 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:30:44,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-25 17:30:44,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471971659] [2022-11-25 17:30:44,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:30:44,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:30:44,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:30:44,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:30:44,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:30:44,472 INFO L87 Difference]: Start difference. First operand 916 states and 1379 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 17:30:44,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:30:44,614 INFO L93 Difference]: Finished difference Result 1572 states and 2432 transitions. [2022-11-25 17:30:44,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:30:44,615 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 16 [2022-11-25 17:30:44,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:30:44,625 INFO L225 Difference]: With dead ends: 1572 [2022-11-25 17:30:44,625 INFO L226 Difference]: Without dead ends: 1570 [2022-11-25 17:30:44,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 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 17:30:44,630 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 95 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:30:44,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 93 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:30:44,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2022-11-25 17:30:44,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1077. [2022-11-25 17:30:44,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 1069 states have (on average 1.5060804490177737) internal successors, (1610), 1076 states have internal predecessors, (1610), 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 17:30:44,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1610 transitions. [2022-11-25 17:30:44,699 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1610 transitions. Word has length 16 [2022-11-25 17:30:44,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:30:44,699 INFO L495 AbstractCegarLoop]: Abstraction has 1077 states and 1610 transitions. [2022-11-25 17:30:44,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 17:30:44,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1610 transitions. [2022-11-25 17:30:44,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 17:30:44,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:30:44,704 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-25 17:30:44,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:30:44,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:30:44,916 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:30:44,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:44,916 INFO L85 PathProgramCache]: Analyzing trace with hash 80109410, now seen corresponding path program 1 times [2022-11-25 17:30:44,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:30:44,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519683384] [2022-11-25 17:30:44,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:44,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:30:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:44,959 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:44,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:30:44,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519683384] [2022-11-25 17:30:44,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519683384] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:30:44,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844390613] [2022-11-25 17:30:44,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:44,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:30:44,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:30:44,961 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:30:44,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:30:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:45,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:30:45,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:30:45,051 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:45,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:30:45,091 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:45,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844390613] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:30:45,092 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:30:45,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-25 17:30:45,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645805766] [2022-11-25 17:30:45,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:30:45,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:30:45,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:30:45,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:30:45,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:30:45,094 INFO L87 Difference]: Start difference. First operand 1077 states and 1610 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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 17:30:45,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:30:45,192 INFO L93 Difference]: Finished difference Result 2449 states and 3822 transitions. [2022-11-25 17:30:45,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:30:45,192 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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 20 [2022-11-25 17:30:45,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:30:45,201 INFO L225 Difference]: With dead ends: 2449 [2022-11-25 17:30:45,201 INFO L226 Difference]: Without dead ends: 2447 [2022-11-25 17:30:45,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 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 17:30:45,204 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 134 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:30:45,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 110 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:30:45,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2447 states. [2022-11-25 17:30:45,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2447 to 2128. [2022-11-25 17:30:45,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2120 states have (on average 1.5179245283018867) internal successors, (3218), 2127 states have internal predecessors, (3218), 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 17:30:45,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 3218 transitions. [2022-11-25 17:30:45,305 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 3218 transitions. Word has length 20 [2022-11-25 17:30:45,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:30:45,305 INFO L495 AbstractCegarLoop]: Abstraction has 2128 states and 3218 transitions. [2022-11-25 17:30:45,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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 17:30:45,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 3218 transitions. [2022-11-25 17:30:45,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 17:30:45,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:30:45,306 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:30:45,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:30:45,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 17:30:45,512 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:30:45,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:45,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1928900965, now seen corresponding path program 1 times [2022-11-25 17:30:45,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:30:45,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783171662] [2022-11-25 17:30:45,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:45,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:30:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:45,577 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:45,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:30:45,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783171662] [2022-11-25 17:30:45,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783171662] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:30:45,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830777353] [2022-11-25 17:30:45,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:45,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:30:45,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:30:45,579 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:30:45,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:30:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:45,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:30:45,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:30:45,669 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:45,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:30:45,725 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:45,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830777353] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:30:45,726 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:30:45,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-25 17:30:45,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029290385] [2022-11-25 17:30:45,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:30:45,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:30:45,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:30:45,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:30:45,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:30:45,732 INFO L87 Difference]: Start difference. First operand 2128 states and 3218 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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 17:30:45,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:30:45,853 INFO L93 Difference]: Finished difference Result 4026 states and 6272 transitions. [2022-11-25 17:30:45,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:30:45,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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 20 [2022-11-25 17:30:45,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:30:45,867 INFO L225 Difference]: With dead ends: 4026 [2022-11-25 17:30:45,867 INFO L226 Difference]: Without dead ends: 4024 [2022-11-25 17:30:45,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 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 17:30:45,870 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 80 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:30:45,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 89 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:30:45,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4024 states. [2022-11-25 17:30:45,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4024 to 2622. [2022-11-25 17:30:45,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2622 states, 2615 states have (on average 1.4944550669216061) internal successors, (3908), 2621 states have internal predecessors, (3908), 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 17:30:45,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2622 states to 2622 states and 3908 transitions. [2022-11-25 17:30:45,975 INFO L78 Accepts]: Start accepts. Automaton has 2622 states and 3908 transitions. Word has length 20 [2022-11-25 17:30:45,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:30:45,977 INFO L495 AbstractCegarLoop]: Abstraction has 2622 states and 3908 transitions. [2022-11-25 17:30:45,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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 17:30:45,977 INFO L276 IsEmpty]: Start isEmpty. Operand 2622 states and 3908 transitions. [2022-11-25 17:30:45,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 17:30:45,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:30:45,978 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1] [2022-11-25 17:30:45,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:30:46,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 17:30:46,184 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:30:46,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:46,185 INFO L85 PathProgramCache]: Analyzing trace with hash 462646425, now seen corresponding path program 2 times [2022-11-25 17:30:46,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:30:46,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25795508] [2022-11-25 17:30:46,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:46,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:30:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:46,278 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 17:30:46,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:30:46,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25795508] [2022-11-25 17:30:46,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25795508] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:30:46,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465917760] [2022-11-25 17:30:46,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:30:46,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:30:46,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:30:46,283 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:30:46,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 17:30:46,325 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 17:30:46,325 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:30:46,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:30:46,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:30:46,365 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 17:30:46,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:30:46,411 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 17:30:46,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465917760] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:30:46,411 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:30:46,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-25 17:30:46,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89965467] [2022-11-25 17:30:46,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:30:46,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:30:46,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:30:46,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:30:46,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:30:46,414 INFO L87 Difference]: Start difference. First operand 2622 states and 3908 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 17:30:46,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:30:46,499 INFO L93 Difference]: Finished difference Result 2622 states and 3908 transitions. [2022-11-25 17:30:46,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:30:46,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 21 [2022-11-25 17:30:46,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:30:46,509 INFO L225 Difference]: With dead ends: 2622 [2022-11-25 17:30:46,509 INFO L226 Difference]: Without dead ends: 2621 [2022-11-25 17:30:46,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:30:46,511 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 70 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:30:46,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 53 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:30:46,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2621 states. [2022-11-25 17:30:46,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2621 to 2270. [2022-11-25 17:30:46,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2270 states, 2264 states have (on average 1.4536219081272084) internal successors, (3291), 2269 states have internal predecessors, (3291), 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 17:30:46,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 3291 transitions. [2022-11-25 17:30:46,605 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 3291 transitions. Word has length 21 [2022-11-25 17:30:46,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:30:46,605 INFO L495 AbstractCegarLoop]: Abstraction has 2270 states and 3291 transitions. [2022-11-25 17:30:46,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 17:30:46,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 3291 transitions. [2022-11-25 17:30:46,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 17:30:46,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:30:46,607 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1] [2022-11-25 17:30:46,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:30:46,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 17:30:46,813 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:30:46,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:46,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1463336256, now seen corresponding path program 1 times [2022-11-25 17:30:46,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:30:46,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699055185] [2022-11-25 17:30:46,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:46,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:30:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:46,866 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:46,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:30:46,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699055185] [2022-11-25 17:30:46,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699055185] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:30:46,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83335351] [2022-11-25 17:30:46,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:46,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:30:46,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:30:46,869 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:30:46,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 17:30:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:46,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:30:46,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:30:46,966 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:46,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:30:47,051 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:47,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83335351] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:30:47,052 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:30:47,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-25 17:30:47,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694052058] [2022-11-25 17:30:47,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:30:47,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:30:47,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:30:47,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:30:47,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:30:47,055 INFO L87 Difference]: Start difference. First operand 2270 states and 3291 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 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 17:30:47,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:30:47,315 INFO L93 Difference]: Finished difference Result 6565 states and 9600 transitions. [2022-11-25 17:30:47,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:30:47,315 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 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 25 [2022-11-25 17:30:47,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:30:47,337 INFO L225 Difference]: With dead ends: 6565 [2022-11-25 17:30:47,337 INFO L226 Difference]: Without dead ends: 6564 [2022-11-25 17:30:47,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:30:47,341 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 154 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:30:47,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 146 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:30:47,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6564 states. [2022-11-25 17:30:47,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6564 to 5370. [2022-11-25 17:30:47,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5370 states, 5364 states have (on average 1.4500372856077555) internal successors, (7778), 5369 states have internal predecessors, (7778), 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 17:30:47,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5370 states to 5370 states and 7778 transitions. [2022-11-25 17:30:47,599 INFO L78 Accepts]: Start accepts. Automaton has 5370 states and 7778 transitions. Word has length 25 [2022-11-25 17:30:47,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:30:47,599 INFO L495 AbstractCegarLoop]: Abstraction has 5370 states and 7778 transitions. [2022-11-25 17:30:47,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 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 17:30:47,600 INFO L276 IsEmpty]: Start isEmpty. Operand 5370 states and 7778 transitions. [2022-11-25 17:30:47,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-25 17:30:47,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:30:47,601 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1] [2022-11-25 17:30:47,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:30:47,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:30:47,812 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:30:47,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:47,813 INFO L85 PathProgramCache]: Analyzing trace with hash -976459081, now seen corresponding path program 1 times [2022-11-25 17:30:47,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:30:47,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943287196] [2022-11-25 17:30:47,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:47,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:30:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:47,910 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:47,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:30:47,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943287196] [2022-11-25 17:30:47,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943287196] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:30:47,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301015681] [2022-11-25 17:30:47,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:47,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:30:47,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:30:47,913 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:30:47,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 17:30:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:47,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:30:47,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:30:48,019 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:48,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:30:48,098 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:48,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301015681] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:30:48,098 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:30:48,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-25 17:30:48,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608268713] [2022-11-25 17:30:48,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:30:48,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:30:48,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:30:48,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:30:48,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:30:48,101 INFO L87 Difference]: Start difference. First operand 5370 states and 7778 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 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 17:30:48,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:30:48,650 INFO L93 Difference]: Finished difference Result 15529 states and 22704 transitions. [2022-11-25 17:30:48,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:30:48,651 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 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 31 [2022-11-25 17:30:48,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:30:48,737 INFO L225 Difference]: With dead ends: 15529 [2022-11-25 17:30:48,737 INFO L226 Difference]: Without dead ends: 15528 [2022-11-25 17:30:48,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:30:48,745 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 151 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:30:48,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 145 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:30:48,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15528 states. [2022-11-25 17:30:49,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15528 to 12718. [2022-11-25 17:30:49,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12718 states, 12712 states have (on average 1.4462712397734425) internal successors, (18385), 12717 states have internal predecessors, (18385), 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 17:30:49,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12718 states to 12718 states and 18385 transitions. [2022-11-25 17:30:49,356 INFO L78 Accepts]: Start accepts. Automaton has 12718 states and 18385 transitions. Word has length 31 [2022-11-25 17:30:49,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:30:49,358 INFO L495 AbstractCegarLoop]: Abstraction has 12718 states and 18385 transitions. [2022-11-25 17:30:49,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 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 17:30:49,359 INFO L276 IsEmpty]: Start isEmpty. Operand 12718 states and 18385 transitions. [2022-11-25 17:30:49,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-25 17:30:49,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:30:49,364 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 1, 1, 1] [2022-11-25 17:30:49,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 17:30:49,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 17:30:49,654 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:30:49,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:49,654 INFO L85 PathProgramCache]: Analyzing trace with hash 626260654, now seen corresponding path program 2 times [2022-11-25 17:30:49,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:30:49,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064898135] [2022-11-25 17:30:49,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:49,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:30:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:49,759 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:49,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:30:49,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064898135] [2022-11-25 17:30:49,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064898135] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:30:49,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837002420] [2022-11-25 17:30:49,760 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:30:49,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:30:49,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:30:49,763 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:30:49,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 17:30:49,820 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:30:49,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:30:49,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:30:49,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:30:49,895 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:49,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:30:50,031 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:50,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837002420] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:30:50,032 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:30:50,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-25 17:30:50,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225929450] [2022-11-25 17:30:50,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:30:50,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 17:30:50,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:30:50,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:30:50,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:30:50,034 INFO L87 Difference]: Start difference. First operand 12718 states and 18385 transitions. Second operand has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 12 states have internal predecessors, (73), 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 17:30:51,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:30:51,251 INFO L93 Difference]: Finished difference Result 43375 states and 64064 transitions. [2022-11-25 17:30:51,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:30:51,251 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 12 states have internal predecessors, (73), 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 37 [2022-11-25 17:30:51,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:30:51,391 INFO L225 Difference]: With dead ends: 43375 [2022-11-25 17:30:51,391 INFO L226 Difference]: Without dead ends: 43373 [2022-11-25 17:30:51,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 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 17:30:51,422 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 343 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:30:51,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 226 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:30:51,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43373 states. [2022-11-25 17:30:52,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43373 to 27314. [2022-11-25 17:30:52,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27314 states, 27308 states have (on average 1.4249670426248717) internal successors, (38913), 27313 states have internal predecessors, (38913), 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 17:30:53,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27314 states to 27314 states and 38913 transitions. [2022-11-25 17:30:53,066 INFO L78 Accepts]: Start accepts. Automaton has 27314 states and 38913 transitions. Word has length 37 [2022-11-25 17:30:53,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:30:53,068 INFO L495 AbstractCegarLoop]: Abstraction has 27314 states and 38913 transitions. [2022-11-25 17:30:53,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 12 states have internal predecessors, (73), 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 17:30:53,068 INFO L276 IsEmpty]: Start isEmpty. Operand 27314 states and 38913 transitions. [2022-11-25 17:30:53,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-25 17:30:53,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:30:53,071 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1] [2022-11-25 17:30:53,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 17:30:53,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:30:53,283 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:30:53,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:53,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1841639369, now seen corresponding path program 2 times [2022-11-25 17:30:53,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:30:53,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681649195] [2022-11-25 17:30:53,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:53,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:30:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:53,383 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:53,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:30:53,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681649195] [2022-11-25 17:30:53,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681649195] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:30:53,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670363906] [2022-11-25 17:30:53,384 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:30:53,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:30:53,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:30:53,386 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:30:53,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 17:30:53,435 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:30:53,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:30:53,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:30:53,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:30:53,510 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:53,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:30:53,638 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:30:53,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670363906] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:30:53,638 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:30:53,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-25 17:30:53,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779344554] [2022-11-25 17:30:53,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:30:53,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 17:30:53,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:30:53,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:30:53,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:30:53,641 INFO L87 Difference]: Start difference. First operand 27314 states and 38913 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 12 states have internal predecessors, (93), 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 17:30:56,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:30:56,582 INFO L93 Difference]: Finished difference Result 93041 states and 135518 transitions. [2022-11-25 17:30:56,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:30:56,583 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 12 states have internal predecessors, (93), 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 47 [2022-11-25 17:30:56,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:30:56,857 INFO L225 Difference]: With dead ends: 93041 [2022-11-25 17:30:56,858 INFO L226 Difference]: Without dead ends: 93039 [2022-11-25 17:30:56,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 88 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 17:30:56,885 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 292 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:30:56,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 228 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:30:56,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93039 states. [2022-11-25 17:30:59,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93039 to 58638. [2022-11-25 17:30:59,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58638 states, 58632 states have (on average 1.404642516032201) internal successors, (82357), 58637 states have internal predecessors, (82357), 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 17:30:59,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58638 states to 58638 states and 82357 transitions. [2022-11-25 17:30:59,817 INFO L78 Accepts]: Start accepts. Automaton has 58638 states and 82357 transitions. Word has length 47 [2022-11-25 17:30:59,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:30:59,819 INFO L495 AbstractCegarLoop]: Abstraction has 58638 states and 82357 transitions. [2022-11-25 17:30:59,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 12 states have internal predecessors, (93), 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 17:30:59,819 INFO L276 IsEmpty]: Start isEmpty. Operand 58638 states and 82357 transitions. [2022-11-25 17:30:59,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-25 17:30:59,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:30:59,823 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1] [2022-11-25 17:30:59,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 17:31:00,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-25 17:31:00,030 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:31:00,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:00,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1700748776, now seen corresponding path program 2 times [2022-11-25 17:31:00,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:00,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603865278] [2022-11-25 17:31:00,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:00,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:31:00,273 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:31:00,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:31:00,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603865278] [2022-11-25 17:31:00,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603865278] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:31:00,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599090007] [2022-11-25 17:31:00,274 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:31:00,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:31:00,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:31:00,279 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:31:00,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 17:31:00,351 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:31:00,351 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:31:00,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 17:31:00,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:31:00,495 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:31:00,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:31:00,726 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:31:00,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599090007] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:31:00,726 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:31:00,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-11-25 17:31:00,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158618137] [2022-11-25 17:31:00,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:31:00,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 17:31:00,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:31:00,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 17:31:00,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:31:00,728 INFO L87 Difference]: Start difference. First operand 58638 states and 82357 transitions. Second operand has 16 states, 15 states have (on average 7.533333333333333) internal successors, (113), 16 states have internal predecessors, (113), 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 17:31:06,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:31:06,087 INFO L93 Difference]: Finished difference Result 206448 states and 292609 transitions. [2022-11-25 17:31:06,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 17:31:06,089 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.533333333333333) internal successors, (113), 16 states have internal predecessors, (113), 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 57 [2022-11-25 17:31:06,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:31:06,591 INFO L225 Difference]: With dead ends: 206448 [2022-11-25 17:31:06,591 INFO L226 Difference]: Without dead ends: 206447 [2022-11-25 17:31:06,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:31:06,683 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 688 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:31:06,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 304 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:31:06,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206447 states. [2022-11-25 17:31:11,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206447 to 114948. [2022-11-25 17:31:11,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114948 states, 114942 states have (on average 1.3955473195176697) internal successors, (160407), 114947 states have internal predecessors, (160407), 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 17:31:12,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114948 states to 114948 states and 160407 transitions. [2022-11-25 17:31:12,207 INFO L78 Accepts]: Start accepts. Automaton has 114948 states and 160407 transitions. Word has length 57 [2022-11-25 17:31:12,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:31:12,208 INFO L495 AbstractCegarLoop]: Abstraction has 114948 states and 160407 transitions. [2022-11-25 17:31:12,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.533333333333333) internal successors, (113), 16 states have internal predecessors, (113), 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 17:31:12,208 INFO L276 IsEmpty]: Start isEmpty. Operand 114948 states and 160407 transitions. [2022-11-25 17:31:12,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 17:31:12,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:31:12,217 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1] [2022-11-25 17:31:12,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 17:31:12,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-25 17:31:12,423 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:31:12,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:12,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1771384981, now seen corresponding path program 2 times [2022-11-25 17:31:12,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:12,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586651737] [2022-11-25 17:31:12,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:12,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:12,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:31:12,582 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:31:12,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:31:12,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586651737] [2022-11-25 17:31:12,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586651737] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:31:12,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882104114] [2022-11-25 17:31:12,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:31:12,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:31:12,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:31:12,584 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:31:12,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd9f6339-0935-42a3-971a-3e0503ecf321/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-25 17:31:12,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:31:12,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:31:12,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 17:31:12,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:31:12,794 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:31:12,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:31:13,046 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:31:13,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882104114] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:31:13,046 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:31:13,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-11-25 17:31:13,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411556799] [2022-11-25 17:31:13,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:31:13,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 17:31:13,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:31:13,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 17:31:13,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:31:13,048 INFO L87 Difference]: Start difference. First operand 114948 states and 160407 transitions. Second operand has 16 states, 15 states have (on average 9.4) internal successors, (141), 16 states have internal predecessors, (141), 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 17:31:23,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:31:23,078 INFO L93 Difference]: Finished difference Result 404448 states and 569641 transitions. [2022-11-25 17:31:23,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 17:31:23,078 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 9.4) internal successors, (141), 16 states have internal predecessors, (141), 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 71 [2022-11-25 17:31:23,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:31:24,712 INFO L225 Difference]: With dead ends: 404448 [2022-11-25 17:31:24,713 INFO L226 Difference]: Without dead ends: 404447 [2022-11-25 17:31:24,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:31:24,778 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 268 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:31:24,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 311 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:31:25,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404447 states.