./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro --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 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 --- 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-8393723 [2022-11-18 20:45:25,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:45:25,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:45:25,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:45:25,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:45:25,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:45:25,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:45:25,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:45:25,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:45:25,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:45:25,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:45:25,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:45:25,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:45:25,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:45:25,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:45:25,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:45:25,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:45:25,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:45:25,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:45:25,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:45:25,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:45:25,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:45:25,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:45:25,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:45:25,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:45:25,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:45:25,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:45:25,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:45:25,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:45:25,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:45:25,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:45:25,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:45:25,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:45:25,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:45:25,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:45:25,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:45:25,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:45:25,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:45:25,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:45:25,738 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:45:25,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:45:25,740 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-18 20:45:25,791 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:45:25,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:45:25,793 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:45:25,793 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:45:25,794 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:45:25,794 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:45:25,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:45:25,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:45:25,796 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:45:25,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:45:25,798 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:45:25,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:45:25,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:45:25,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:45:25,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:45:25,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:45:25,800 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:45:25,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:45:25,800 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:45:25,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:45:25,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:45:25,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:45:25,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:45:25,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:45:25,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:45:25,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:45:25,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:45:25,804 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:45:25,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:45:25,805 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:45:25,805 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:45:25,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:45:25,806 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 [2022-11-18 20:45:26,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:45:26,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:45:26,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:45:26,137 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:45:26,138 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:45:26,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2022-11-18 20:45:26,215 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/data/6543663e3/0c1ac08a1e6c4504a0d97c17f20a4ecb/FLAGdba68a67e [2022-11-18 20:45:26,717 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:45:26,718 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2022-11-18 20:45:26,727 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/data/6543663e3/0c1ac08a1e6c4504a0d97c17f20a4ecb/FLAGdba68a67e [2022-11-18 20:45:27,108 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/data/6543663e3/0c1ac08a1e6c4504a0d97c17f20a4ecb [2022-11-18 20:45:27,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:45:27,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:45:27,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:45:27,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:45:27,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:45:27,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:45:27" (1/1) ... [2022-11-18 20:45:27,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@775fb192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:45:27, skipping insertion in model container [2022-11-18 20:45:27,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:45:27" (1/1) ... [2022-11-18 20:45:27,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:45:27,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:45:27,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:45:27,396 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:45:27,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:45:27,446 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:45:27,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:45:27 WrapperNode [2022-11-18 20:45:27,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:45:27,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:45:27,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:45:27,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:45:27,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:45:27" (1/1) ... [2022-11-18 20:45:27,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:45:27" (1/1) ... [2022-11-18 20:45:27,490 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2022-11-18 20:45:27,490 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:45:27,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:45:27,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:45:27,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:45:27,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:45:27" (1/1) ... [2022-11-18 20:45:27,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:45:27" (1/1) ... [2022-11-18 20:45:27,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:45:27" (1/1) ... [2022-11-18 20:45:27,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:45:27" (1/1) ... [2022-11-18 20:45:27,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:45:27" (1/1) ... [2022-11-18 20:45:27,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:45:27" (1/1) ... [2022-11-18 20:45:27,509 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:45:27" (1/1) ... [2022-11-18 20:45:27,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:45:27" (1/1) ... [2022-11-18 20:45:27,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:45:27,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:45:27,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:45:27,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:45:27,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:45:27" (1/1) ... [2022-11-18 20:45:27,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:45:27,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:45:27,556 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:45:27,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:45:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:45:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:45:27,709 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:45:27,711 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:45:27,823 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:45:27,831 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:45:27,831 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:45:27,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:45:27 BoogieIcfgContainer [2022-11-18 20:45:27,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:45:27,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:45:27,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:45:27,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:45:27,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:45:27" (1/3) ... [2022-11-18 20:45:27,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147cf32d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:45:27, skipping insertion in model container [2022-11-18 20:45:27,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:45:27" (2/3) ... [2022-11-18 20:45:27,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147cf32d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:45:27, skipping insertion in model container [2022-11-18 20:45:27,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:45:27" (3/3) ... [2022-11-18 20:45:27,847 INFO L112 eAbstractionObserver]: Analyzing ICFG LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2022-11-18 20:45:27,871 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:45:27,871 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-18 20:45:27,937 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:45:27,946 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;@4362767f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:45:27,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-18 20:45:27,952 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 16 states have (on average 1.8125) internal successors, (29), 24 states have internal predecessors, (29), 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) [2022-11-18 20:45:27,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 20:45:27,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:45:27,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 20:45:27,971 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:45:27,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:45:27,980 INFO L85 PathProgramCache]: Analyzing trace with hash 28693987, now seen corresponding path program 1 times [2022-11-18 20:45:27,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:45:27,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310665347] [2022-11-18 20:45:27,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:27,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:45:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:28,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:28,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:45:28,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310665347] [2022-11-18 20:45:28,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310665347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:45:28,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:45:28,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:45:28,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310132064] [2022-11-18 20:45:28,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:45:28,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:45:28,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:45:28,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:45:28,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:45:28,346 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.8125) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:45:28,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:45:28,484 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2022-11-18 20:45:28,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:45:28,487 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 [2022-11-18 20:45:28,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:45:28,496 INFO L225 Difference]: With dead ends: 61 [2022-11-18 20:45:28,496 INFO L226 Difference]: Without dead ends: 31 [2022-11-18 20:45:28,499 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 [2022-11-18 20:45:28,503 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 16 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:45:28,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 26 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:45:28,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-18 20:45:28,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2022-11-18 20:45:28,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.6842105263157894) 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) [2022-11-18 20:45:28,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2022-11-18 20:45:28,541 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 5 [2022-11-18 20:45:28,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:45:28,541 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2022-11-18 20:45:28,542 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) [2022-11-18 20:45:28,542 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-11-18 20:45:28,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 20:45:28,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:45:28,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:45:28,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:45:28,544 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:45:28,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:45:28,545 INFO L85 PathProgramCache]: Analyzing trace with hash 889513645, now seen corresponding path program 1 times [2022-11-18 20:45:28,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:45:28,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535822836] [2022-11-18 20:45:28,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:28,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:45:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:28,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:28,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:45:28,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535822836] [2022-11-18 20:45:28,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535822836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:45:28,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:45:28,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:45:28,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820511083] [2022-11-18 20:45:28,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:45:28,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:45:28,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:45:28,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:45:28,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:45:28,583 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:45:28,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:45:28,652 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2022-11-18 20:45:28,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:45:28,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-18 20:45:28,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:45:28,653 INFO L225 Difference]: With dead ends: 31 [2022-11-18 20:45:28,654 INFO L226 Difference]: Without dead ends: 30 [2022-11-18 20:45:28,654 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 [2022-11-18 20:45:28,656 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:45:28,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:45:28,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-18 20:45:28,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-18 20:45:28,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.5909090909090908) 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) [2022-11-18 20:45:28,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2022-11-18 20:45:28,680 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 6 [2022-11-18 20:45:28,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:45:28,681 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2022-11-18 20:45:28,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:45:28,681 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2022-11-18 20:45:28,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 20:45:28,682 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:45:28,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:45:28,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:45:28,682 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:45:28,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:45:28,683 INFO L85 PathProgramCache]: Analyzing trace with hash 124122716, now seen corresponding path program 1 times [2022-11-18 20:45:28,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:45:28,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130336054] [2022-11-18 20:45:28,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:28,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:45:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:28,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:28,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:45:28,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130336054] [2022-11-18 20:45:28,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130336054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:45:28,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:45:28,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:45:28,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382775679] [2022-11-18 20:45:28,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:45:28,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:45:28,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:45:28,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:45:28,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:45:28,775 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2022-11-18 20:45:28,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:45:28,918 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2022-11-18 20:45:28,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:45:28,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 [2022-11-18 20:45:28,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:45:28,921 INFO L225 Difference]: With dead ends: 49 [2022-11-18 20:45:28,921 INFO L226 Difference]: Without dead ends: 48 [2022-11-18 20:45:28,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:45:28,923 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 24 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:45:28,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 19 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:45:28,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-18 20:45:28,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 38. [2022-11-18 20:45:28,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 37 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) [2022-11-18 20:45:28,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 49 transitions. [2022-11-18 20:45:28,933 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 49 transitions. Word has length 8 [2022-11-18 20:45:28,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:45:28,933 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 49 transitions. [2022-11-18 20:45:28,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2022-11-18 20:45:28,934 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2022-11-18 20:45:28,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 20:45:28,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:45:28,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:45:28,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:45:28,942 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:45:28,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:45:28,943 INFO L85 PathProgramCache]: Analyzing trace with hash 124122767, now seen corresponding path program 1 times [2022-11-18 20:45:28,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:45:28,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554132185] [2022-11-18 20:45:28,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:28,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:45:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:29,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:29,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:45:29,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554132185] [2022-11-18 20:45:29,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554132185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:45:29,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:45:29,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:45:29,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677688419] [2022-11-18 20:45:29,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:45:29,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:45:29,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:45:29,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:45:29,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:45:29,039 INFO L87 Difference]: Start difference. First operand 38 states and 49 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2022-11-18 20:45:29,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:45:29,126 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2022-11-18 20:45:29,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:45:29,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 [2022-11-18 20:45:29,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:45:29,128 INFO L225 Difference]: With dead ends: 64 [2022-11-18 20:45:29,128 INFO L226 Difference]: Without dead ends: 62 [2022-11-18 20:45:29,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:45:29,130 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 22 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:45:29,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 29 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:45:29,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-18 20:45:29,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 43. [2022-11-18 20:45:29,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 42 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:45:29,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2022-11-18 20:45:29,141 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 8 [2022-11-18 20:45:29,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:45:29,141 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2022-11-18 20:45:29,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2022-11-18 20:45:29,142 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2022-11-18 20:45:29,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:45:29,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:45:29,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:45:29,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:45:29,143 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:45:29,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:45:29,144 INFO L85 PathProgramCache]: Analyzing trace with hash -447163028, now seen corresponding path program 1 times [2022-11-18 20:45:29,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:45:29,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131275706] [2022-11-18 20:45:29,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:29,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:45:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:29,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:29,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:45:29,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131275706] [2022-11-18 20:45:29,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131275706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:45:29,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:45:29,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:45:29,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516269296] [2022-11-18 20:45:29,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:45:29,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:45:29,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:45:29,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:45:29,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:45:29,217 INFO L87 Difference]: Start difference. First operand 43 states and 57 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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) [2022-11-18 20:45:29,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:45:29,350 INFO L93 Difference]: Finished difference Result 60 states and 77 transitions. [2022-11-18 20:45:29,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:45:29,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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 [2022-11-18 20:45:29,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:45:29,352 INFO L225 Difference]: With dead ends: 60 [2022-11-18 20:45:29,352 INFO L226 Difference]: Without dead ends: 59 [2022-11-18 20:45:29,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:45:29,354 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 16 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:45:29,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 28 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:45:29,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-18 20:45:29,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 52. [2022-11-18 20:45:29,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 51 states have internal predecessors, (72), 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) [2022-11-18 20:45:29,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 72 transitions. [2022-11-18 20:45:29,364 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 72 transitions. Word has length 9 [2022-11-18 20:45:29,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:45:29,365 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 72 transitions. [2022-11-18 20:45:29,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-18 20:45:29,365 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 72 transitions. [2022-11-18 20:45:29,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:45:29,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:45:29,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:45:29,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:45:29,366 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:45:29,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:45:29,367 INFO L85 PathProgramCache]: Analyzing trace with hash -447161458, now seen corresponding path program 1 times [2022-11-18 20:45:29,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:45:29,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991729623] [2022-11-18 20:45:29,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:29,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:45:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:29,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:29,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:45:29,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991729623] [2022-11-18 20:45:29,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991729623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:45:29,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:45:29,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:45:29,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471112208] [2022-11-18 20:45:29,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:45:29,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:45:29,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:45:29,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:45:29,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:45:29,446 INFO L87 Difference]: Start difference. First operand 52 states and 72 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:45:29,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:45:29,541 INFO L93 Difference]: Finished difference Result 97 states and 136 transitions. [2022-11-18 20:45:29,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:45:29,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 20:45:29,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:45:29,547 INFO L225 Difference]: With dead ends: 97 [2022-11-18 20:45:29,549 INFO L226 Difference]: Without dead ends: 95 [2022-11-18 20:45:29,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:45:29,553 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 29 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:45:29,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 27 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:45:29,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-11-18 20:45:29,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2022-11-18 20:45:29,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 79 states have (on average 1.5696202531645569) internal successors, (124), 86 states have internal predecessors, (124), 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) [2022-11-18 20:45:29,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2022-11-18 20:45:29,576 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 9 [2022-11-18 20:45:29,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:45:29,577 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2022-11-18 20:45:29,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:45:29,577 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2022-11-18 20:45:29,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 20:45:29,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:45:29,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:45:29,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:45:29,578 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:45:29,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:45:29,579 INFO L85 PathProgramCache]: Analyzing trace with hash -977103247, now seen corresponding path program 1 times [2022-11-18 20:45:29,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:45:29,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071513555] [2022-11-18 20:45:29,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:29,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:45:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:29,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:29,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:45:29,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071513555] [2022-11-18 20:45:29,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071513555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:45:29,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:45:29,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:45:29,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414446075] [2022-11-18 20:45:29,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:45:29,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:45:29,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:45:29,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:45:29,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:45:29,656 INFO L87 Difference]: Start difference. First operand 87 states and 124 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) [2022-11-18 20:45:29,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:45:29,675 INFO L93 Difference]: Finished difference Result 87 states and 124 transitions. [2022-11-18 20:45:29,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:45:29,675 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 [2022-11-18 20:45:29,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:45:29,676 INFO L225 Difference]: With dead ends: 87 [2022-11-18 20:45:29,676 INFO L226 Difference]: Without dead ends: 86 [2022-11-18 20:45:29,677 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 [2022-11-18 20:45:29,678 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 11 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:45:29,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 16 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:45:29,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-18 20:45:29,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-11-18 20:45:29,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 79 states have (on average 1.4936708860759493) internal successors, (118), 85 states have internal predecessors, (118), 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) [2022-11-18 20:45:29,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 118 transitions. [2022-11-18 20:45:29,691 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 118 transitions. Word has length 10 [2022-11-18 20:45:29,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:45:29,692 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 118 transitions. [2022-11-18 20:45:29,692 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) [2022-11-18 20:45:29,692 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 118 transitions. [2022-11-18 20:45:29,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 20:45:29,693 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:45:29,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:45:29,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:45:29,693 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:45:29,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:45:29,694 INFO L85 PathProgramCache]: Analyzing trace with hash -225429520, now seen corresponding path program 1 times [2022-11-18 20:45:29,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:45:29,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680465127] [2022-11-18 20:45:29,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:29,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:45:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:29,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:29,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:45:29,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680465127] [2022-11-18 20:45:29,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680465127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:45:29,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:45:29,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:45:29,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109323557] [2022-11-18 20:45:29,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:45:29,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:45:29,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:45:29,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:45:29,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:45:29,780 INFO L87 Difference]: Start difference. First operand 86 states and 118 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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) [2022-11-18 20:45:29,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:45:29,826 INFO L93 Difference]: Finished difference Result 86 states and 118 transitions. [2022-11-18 20:45:29,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:45:29,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 [2022-11-18 20:45:29,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:45:29,827 INFO L225 Difference]: With dead ends: 86 [2022-11-18 20:45:29,828 INFO L226 Difference]: Without dead ends: 85 [2022-11-18 20:45:29,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:45:29,829 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 15 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:45:29,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 19 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:45:29,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-18 20:45:29,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2022-11-18 20:45:29,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 79 states have (on average 1.4177215189873418) internal successors, (112), 84 states have internal predecessors, (112), 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) [2022-11-18 20:45:29,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 112 transitions. [2022-11-18 20:45:29,841 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 112 transitions. Word has length 11 [2022-11-18 20:45:29,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:45:29,842 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 112 transitions. [2022-11-18 20:45:29,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-11-18 20:45:29,842 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 112 transitions. [2022-11-18 20:45:29,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 20:45:29,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:45:29,843 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 20:45:29,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:45:29,844 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:45:29,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:45:29,844 INFO L85 PathProgramCache]: Analyzing trace with hash -458138511, now seen corresponding path program 1 times [2022-11-18 20:45:29,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:45:29,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684034285] [2022-11-18 20:45:29,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:29,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:45:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:29,910 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:29,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:45:29,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684034285] [2022-11-18 20:45:29,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684034285] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:45:29,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925621441] [2022-11-18 20:45:29,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:29,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:45:29,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:45:29,919 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:45:29,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:45:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:29,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:45:29,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:45:30,213 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:30,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:45:30,288 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:30,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925621441] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:45:30,288 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:45:30,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-11-18 20:45:30,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124076490] [2022-11-18 20:45:30,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:45:30,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:45:30,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:45:30,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:45:30,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:45:30,290 INFO L87 Difference]: Start difference. First operand 85 states and 112 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 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) [2022-11-18 20:45:30,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:45:30,798 INFO L93 Difference]: Finished difference Result 215 states and 282 transitions. [2022-11-18 20:45:30,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 20:45:30,803 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 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) Word has length 14 [2022-11-18 20:45:30,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:45:30,804 INFO L225 Difference]: With dead ends: 215 [2022-11-18 20:45:30,805 INFO L226 Difference]: Without dead ends: 214 [2022-11-18 20:45:30,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=211, Invalid=389, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:45:30,807 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 162 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:45:30,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 33 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:45:30,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-11-18 20:45:30,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 144. [2022-11-18 20:45:30,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 138 states have (on average 1.3840579710144927) internal successors, (191), 143 states have internal predecessors, (191), 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) [2022-11-18 20:45:30,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 191 transitions. [2022-11-18 20:45:30,839 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 191 transitions. Word has length 14 [2022-11-18 20:45:30,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:45:30,840 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 191 transitions. [2022-11-18 20:45:30,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 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) [2022-11-18 20:45:30,840 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 191 transitions. [2022-11-18 20:45:30,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 20:45:30,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:45:30,841 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-18 20:45:30,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:45:31,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:45:31,052 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:45:31,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:45:31,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1317391881, now seen corresponding path program 1 times [2022-11-18 20:45:31,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:45:31,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881035512] [2022-11-18 20:45:31,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:31,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:45:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:31,159 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:31,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:45:31,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881035512] [2022-11-18 20:45:31,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881035512] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:45:31,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247361677] [2022-11-18 20:45:31,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:31,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:45:31,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:45:31,162 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:45:31,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:45:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:31,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:45:31,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:45:31,337 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:31,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:45:31,448 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:31,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247361677] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:45:31,448 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:45:31,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-11-18 20:45:31,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904355578] [2022-11-18 20:45:31,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:45:31,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:45:31,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:45:31,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:45:31,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:45:31,452 INFO L87 Difference]: Start difference. First operand 144 states and 191 transitions. Second operand has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 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) [2022-11-18 20:45:32,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:45:32,164 INFO L93 Difference]: Finished difference Result 261 states and 361 transitions. [2022-11-18 20:45:32,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-18 20:45:32,165 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 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 15 [2022-11-18 20:45:32,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:45:32,167 INFO L225 Difference]: With dead ends: 261 [2022-11-18 20:45:32,167 INFO L226 Difference]: Without dead ends: 258 [2022-11-18 20:45:32,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=354, Invalid=768, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 20:45:32,169 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 216 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:45:32,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 31 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:45:32,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-11-18 20:45:32,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 167. [2022-11-18 20:45:32,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 163 states have (on average 1.2883435582822085) internal successors, (210), 166 states have internal predecessors, (210), 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) [2022-11-18 20:45:32,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 210 transitions. [2022-11-18 20:45:32,232 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 210 transitions. Word has length 15 [2022-11-18 20:45:32,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:45:32,232 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 210 transitions. [2022-11-18 20:45:32,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 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) [2022-11-18 20:45:32,233 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 210 transitions. [2022-11-18 20:45:32,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-18 20:45:32,235 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:45:32,235 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:45:32,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:45:32,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:45:32,441 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:45:32,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:45:32,441 INFO L85 PathProgramCache]: Analyzing trace with hash -23572369, now seen corresponding path program 1 times [2022-11-18 20:45:32,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:45:32,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351950206] [2022-11-18 20:45:32,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:32,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:45:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:32,497 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:32,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:45:32,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351950206] [2022-11-18 20:45:32,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351950206] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:45:32,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110811265] [2022-11-18 20:45:32,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:32,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:45:32,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:45:32,500 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:45:32,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:45:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:32,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:45:32,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:45:32,597 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:32,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:45:32,653 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:32,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110811265] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:45:32,654 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:45:32,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-18 20:45:32,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228870793] [2022-11-18 20:45:32,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:45:32,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:45:32,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:45:32,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:45:32,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:45:32,657 INFO L87 Difference]: Start difference. First operand 167 states and 210 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:45:32,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:45:32,793 INFO L93 Difference]: Finished difference Result 377 states and 498 transitions. [2022-11-18 20:45:32,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:45:32,794 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-18 20:45:32,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:45:32,797 INFO L225 Difference]: With dead ends: 377 [2022-11-18 20:45:32,797 INFO L226 Difference]: Without dead ends: 375 [2022-11-18 20:45:32,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:45:32,799 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 97 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:45:32,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 42 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:45:32,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-11-18 20:45:32,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 274. [2022-11-18 20:45:32,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 270 states have (on average 1.2592592592592593) internal successors, (340), 273 states have internal predecessors, (340), 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) [2022-11-18 20:45:32,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 340 transitions. [2022-11-18 20:45:32,857 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 340 transitions. Word has length 18 [2022-11-18 20:45:32,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:45:32,857 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 340 transitions. [2022-11-18 20:45:32,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:45:32,857 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 340 transitions. [2022-11-18 20:45:32,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 20:45:32,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:45:32,864 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 20:45:32,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:45:33,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:45:33,070 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:45:33,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:45:33,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1589103225, now seen corresponding path program 1 times [2022-11-18 20:45:33,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:45:33,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169835984] [2022-11-18 20:45:33,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:33,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:45:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:33,172 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:45:33,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:45:33,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169835984] [2022-11-18 20:45:33,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169835984] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:45:33,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415864149] [2022-11-18 20:45:33,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:33,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:45:33,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:45:33,174 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:45:33,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:45:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:33,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:45:33,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:45:33,362 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:45:33,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:45:33,487 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:45:33,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415864149] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:45:33,488 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:45:33,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 18 [2022-11-18 20:45:33,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823302822] [2022-11-18 20:45:33,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:45:33,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 20:45:33,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:45:33,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 20:45:33,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:45:33,494 INFO L87 Difference]: Start difference. First operand 274 states and 340 transitions. Second operand has 19 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 19 states have internal predecessors, (68), 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) [2022-11-18 20:45:34,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:45:34,213 INFO L93 Difference]: Finished difference Result 511 states and 647 transitions. [2022-11-18 20:45:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-18 20:45:34,213 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 19 states have internal predecessors, (68), 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 24 [2022-11-18 20:45:34,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:45:34,215 INFO L225 Difference]: With dead ends: 511 [2022-11-18 20:45:34,215 INFO L226 Difference]: Without dead ends: 508 [2022-11-18 20:45:34,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=554, Invalid=1252, Unknown=0, NotChecked=0, Total=1806 [2022-11-18 20:45:34,217 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 130 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:45:34,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 10 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:45:34,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2022-11-18 20:45:34,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 305. [2022-11-18 20:45:34,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 301 states have (on average 1.239202657807309) internal successors, (373), 304 states have internal predecessors, (373), 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) [2022-11-18 20:45:34,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 373 transitions. [2022-11-18 20:45:34,260 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 373 transitions. Word has length 24 [2022-11-18 20:45:34,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:45:34,262 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 373 transitions. [2022-11-18 20:45:34,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 19 states have internal predecessors, (68), 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) [2022-11-18 20:45:34,263 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 373 transitions. [2022-11-18 20:45:34,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 20:45:34,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:45:34,266 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 20:45:34,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:45:34,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 20:45:34,471 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:45:34,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:45:34,472 INFO L85 PathProgramCache]: Analyzing trace with hash -809405228, now seen corresponding path program 2 times [2022-11-18 20:45:34,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:45:34,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252085688] [2022-11-18 20:45:34,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:34,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:45:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:34,605 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:34,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:45:34,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252085688] [2022-11-18 20:45:34,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252085688] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:45:34,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914852559] [2022-11-18 20:45:34,606 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:45:34,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:45:34,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:45:34,607 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:45:34,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:45:34,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:45:34,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:45:34,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:45:34,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:45:34,853 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:34,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:45:34,987 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:34,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914852559] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:45:34,988 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:45:34,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2022-11-18 20:45:34,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169783828] [2022-11-18 20:45:34,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:45:34,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 20:45:34,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:45:34,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 20:45:34,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2022-11-18 20:45:34,990 INFO L87 Difference]: Start difference. First operand 305 states and 373 transitions. Second operand has 22 states, 21 states have (on average 3.9523809523809526) internal successors, (83), 22 states have internal predecessors, (83), 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) [2022-11-18 20:45:36,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:45:36,642 INFO L93 Difference]: Finished difference Result 1478 states and 1783 transitions. [2022-11-18 20:45:36,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-11-18 20:45:36,643 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.9523809523809526) internal successors, (83), 22 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 20:45:36,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:45:36,648 INFO L225 Difference]: With dead ends: 1478 [2022-11-18 20:45:36,649 INFO L226 Difference]: Without dead ends: 1477 [2022-11-18 20:45:36,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2575 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1779, Invalid=4701, Unknown=0, NotChecked=0, Total=6480 [2022-11-18 20:45:36,652 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 506 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:45:36,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 34 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:45:36,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2022-11-18 20:45:36,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 705. [2022-11-18 20:45:36,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 701 states have (on average 1.24679029957204) internal successors, (874), 704 states have internal predecessors, (874), 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) [2022-11-18 20:45:36,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 874 transitions. [2022-11-18 20:45:36,752 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 874 transitions. Word has length 29 [2022-11-18 20:45:36,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:45:36,752 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 874 transitions. [2022-11-18 20:45:36,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.9523809523809526) internal successors, (83), 22 states have internal predecessors, (83), 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) [2022-11-18 20:45:36,753 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 874 transitions. [2022-11-18 20:45:36,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 20:45:36,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:45:36,753 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-11-18 20:45:36,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:45:36,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 20:45:36,960 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:45:36,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:45:36,960 INFO L85 PathProgramCache]: Analyzing trace with hash 2094331952, now seen corresponding path program 2 times [2022-11-18 20:45:36,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:45:36,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230476649] [2022-11-18 20:45:36,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:36,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:45:36,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:37,121 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:37,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:45:37,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230476649] [2022-11-18 20:45:37,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230476649] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:45:37,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103286495] [2022-11-18 20:45:37,123 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:45:37,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:45:37,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:45:37,124 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:45:37,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:45:37,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:45:37,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:45:37,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 20:45:37,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:45:37,484 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:37,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:45:37,787 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:37,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103286495] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:45:37,788 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:45:37,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2022-11-18 20:45:37,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132896787] [2022-11-18 20:45:37,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:45:37,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-18 20:45:37,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:45:37,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-18 20:45:37,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=745, Unknown=0, NotChecked=0, Total=992 [2022-11-18 20:45:37,790 INFO L87 Difference]: Start difference. First operand 705 states and 874 transitions. Second operand has 32 states, 31 states have (on average 2.967741935483871) internal successors, (92), 32 states have internal predecessors, (92), 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) [2022-11-18 20:45:39,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:45:39,907 INFO L93 Difference]: Finished difference Result 1372 states and 1646 transitions. [2022-11-18 20:45:39,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-18 20:45:39,908 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.967741935483871) internal successors, (92), 32 states have internal predecessors, (92), 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 32 [2022-11-18 20:45:39,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:45:39,913 INFO L225 Difference]: With dead ends: 1372 [2022-11-18 20:45:39,914 INFO L226 Difference]: Without dead ends: 1371 [2022-11-18 20:45:39,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1559 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1418, Invalid=3004, Unknown=0, NotChecked=0, Total=4422 [2022-11-18 20:45:39,917 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 593 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:45:39,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 110 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-18 20:45:39,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2022-11-18 20:45:40,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 897. [2022-11-18 20:45:40,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 893 states have (on average 1.232922732362822) internal successors, (1101), 896 states have internal predecessors, (1101), 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) [2022-11-18 20:45:40,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1101 transitions. [2022-11-18 20:45:40,054 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1101 transitions. Word has length 32 [2022-11-18 20:45:40,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:45:40,054 INFO L495 AbstractCegarLoop]: Abstraction has 897 states and 1101 transitions. [2022-11-18 20:45:40,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.967741935483871) internal successors, (92), 32 states have internal predecessors, (92), 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) [2022-11-18 20:45:40,055 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1101 transitions. [2022-11-18 20:45:40,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-18 20:45:40,056 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:45:40,056 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1] [2022-11-18 20:45:40,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:45:40,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:45:40,263 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:45:40,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:45:40,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1671510570, now seen corresponding path program 1 times [2022-11-18 20:45:40,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:45:40,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080500175] [2022-11-18 20:45:40,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:40,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:45:40,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:40,336 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 38 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 20:45:40,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:45:40,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080500175] [2022-11-18 20:45:40,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080500175] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:45:40,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127617449] [2022-11-18 20:45:40,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:40,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:45:40,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:45:40,338 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:45:40,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 20:45:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:40,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:45:40,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:45:40,535 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:40,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:45:40,669 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:40,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127617449] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:45:40,669 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:45:40,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 16 [2022-11-18 20:45:40,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929098826] [2022-11-18 20:45:40,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:45:40,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-18 20:45:40,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:45:40,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-18 20:45:40,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:45:40,671 INFO L87 Difference]: Start difference. First operand 897 states and 1101 transitions. Second operand has 17 states, 16 states have (on average 5.4375) internal successors, (87), 17 states have internal predecessors, (87), 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) [2022-11-18 20:45:41,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:45:41,777 INFO L93 Difference]: Finished difference Result 3167 states and 3972 transitions. [2022-11-18 20:45:41,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-18 20:45:41,777 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.4375) internal successors, (87), 17 states have internal predecessors, (87), 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 36 [2022-11-18 20:45:41,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:45:41,787 INFO L225 Difference]: With dead ends: 3167 [2022-11-18 20:45:41,787 INFO L226 Difference]: Without dead ends: 2954 [2022-11-18 20:45:41,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 855 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=870, Invalid=1992, Unknown=0, NotChecked=0, Total=2862 [2022-11-18 20:45:41,791 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 273 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:45:41,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 32 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:45:41,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2022-11-18 20:45:41,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 447. [2022-11-18 20:45:41,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 444 states have (on average 1.2072072072072073) internal successors, (536), 446 states have internal predecessors, (536), 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) [2022-11-18 20:45:41,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 536 transitions. [2022-11-18 20:45:41,895 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 536 transitions. Word has length 36 [2022-11-18 20:45:41,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:45:41,896 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 536 transitions. [2022-11-18 20:45:41,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.4375) internal successors, (87), 17 states have internal predecessors, (87), 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) [2022-11-18 20:45:41,896 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 536 transitions. [2022-11-18 20:45:41,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-18 20:45:41,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:45:41,897 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:45:41,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-18 20:45:42,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:45:42,103 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:45:42,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:45:42,103 INFO L85 PathProgramCache]: Analyzing trace with hash -2031190993, now seen corresponding path program 2 times [2022-11-18 20:45:42,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:45:42,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327203896] [2022-11-18 20:45:42,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:42,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:45:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:42,260 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:42,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:45:42,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327203896] [2022-11-18 20:45:42,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327203896] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:45:42,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023019487] [2022-11-18 20:45:42,261 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:45:42,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:45:42,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:45:42,262 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:45:42,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 20:45:42,310 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:45:42,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:45:42,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:45:42,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:45:42,371 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:42,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:45:42,502 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:42,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023019487] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:45:42,503 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:45:42,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-11-18 20:45:42,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268730455] [2022-11-18 20:45:42,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:45:42,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-18 20:45:42,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:45:42,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-18 20:45:42,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:45:42,505 INFO L87 Difference]: Start difference. First operand 447 states and 536 transitions. Second operand has 16 states, 15 states have (on average 4.933333333333334) internal successors, (74), 16 states have internal predecessors, (74), 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) [2022-11-18 20:45:43,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:45:43,003 INFO L93 Difference]: Finished difference Result 1663 states and 2112 transitions. [2022-11-18 20:45:43,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 20:45:43,004 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.933333333333334) internal successors, (74), 16 states have internal predecessors, (74), 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 38 [2022-11-18 20:45:43,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:45:43,009 INFO L225 Difference]: With dead ends: 1663 [2022-11-18 20:45:43,010 INFO L226 Difference]: Without dead ends: 1661 [2022-11-18 20:45:43,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:45:43,011 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 199 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:45:43,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 85 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:45:43,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2022-11-18 20:45:43,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1184. [2022-11-18 20:45:43,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 1181 states have (on average 1.1837425910245554) internal successors, (1398), 1183 states have internal predecessors, (1398), 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) [2022-11-18 20:45:43,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1398 transitions. [2022-11-18 20:45:43,269 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1398 transitions. Word has length 38 [2022-11-18 20:45:43,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:45:43,273 INFO L495 AbstractCegarLoop]: Abstraction has 1184 states and 1398 transitions. [2022-11-18 20:45:43,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.933333333333334) internal successors, (74), 16 states have internal predecessors, (74), 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) [2022-11-18 20:45:43,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1398 transitions. [2022-11-18 20:45:43,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-18 20:45:43,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:45:43,275 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2022-11-18 20:45:43,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-18 20:45:43,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 20:45:43,483 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:45:43,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:45:43,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1441176329, now seen corresponding path program 3 times [2022-11-18 20:45:43,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:45:43,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278919364] [2022-11-18 20:45:43,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:43,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:45:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:43,747 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:43,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:45:43,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278919364] [2022-11-18 20:45:43,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278919364] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:45:43,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887235583] [2022-11-18 20:45:43,748 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:45:43,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:45:43,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:45:43,749 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:45:43,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 20:45:43,790 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-18 20:45:43,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:45:43,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-18 20:45:43,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:45:44,130 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:44,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:45:44,395 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:44,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887235583] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:45:44,395 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:45:44,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 36 [2022-11-18 20:45:44,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107779822] [2022-11-18 20:45:44,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:45:44,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-18 20:45:44,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:45:44,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-18 20:45:44,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2022-11-18 20:45:44,399 INFO L87 Difference]: Start difference. First operand 1184 states and 1398 transitions. Second operand has 37 states, 36 states have (on average 3.638888888888889) internal successors, (131), 37 states have internal predecessors, (131), 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) [2022-11-18 20:45:53,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:45:53,219 INFO L93 Difference]: Finished difference Result 10093 states and 11911 transitions. [2022-11-18 20:45:53,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-11-18 20:45:53,219 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 3.638888888888889) internal successors, (131), 37 states have internal predecessors, (131), 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 45 [2022-11-18 20:45:53,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:45:53,251 INFO L225 Difference]: With dead ends: 10093 [2022-11-18 20:45:53,252 INFO L226 Difference]: Without dead ends: 10092 [2022-11-18 20:45:53,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 245 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29038 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=13431, Invalid=47331, Unknown=0, NotChecked=0, Total=60762 [2022-11-18 20:45:53,274 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1641 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 572 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1641 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 572 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:45:53,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1641 Valid, 42 Invalid, 1604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [572 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-18 20:45:53,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10092 states. [2022-11-18 20:45:54,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10092 to 3897. [2022-11-18 20:45:54,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3897 states, 3894 states have (on average 1.194915254237288) internal successors, (4653), 3896 states have internal predecessors, (4653), 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) [2022-11-18 20:45:54,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3897 states to 3897 states and 4653 transitions. [2022-11-18 20:45:54,388 INFO L78 Accepts]: Start accepts. Automaton has 3897 states and 4653 transitions. Word has length 45 [2022-11-18 20:45:54,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:45:54,389 INFO L495 AbstractCegarLoop]: Abstraction has 3897 states and 4653 transitions. [2022-11-18 20:45:54,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 3.638888888888889) internal successors, (131), 37 states have internal predecessors, (131), 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) [2022-11-18 20:45:54,389 INFO L276 IsEmpty]: Start isEmpty. Operand 3897 states and 4653 transitions. [2022-11-18 20:45:54,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-18 20:45:54,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:45:54,391 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2022-11-18 20:45:54,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-18 20:45:54,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 20:45:54,596 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:45:54,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:45:54,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1452116925, now seen corresponding path program 4 times [2022-11-18 20:45:54,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:45:54,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858486395] [2022-11-18 20:45:54,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:45:54,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:45:54,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:45:55,014 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:55,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:45:55,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858486395] [2022-11-18 20:45:55,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858486395] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:45:55,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327421351] [2022-11-18 20:45:55,015 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:45:55,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:45:55,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:45:55,017 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:45:55,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 20:45:55,074 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:45:55,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:45:55,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-18 20:45:55,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:45:55,728 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:55,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:45:56,276 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:45:56,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327421351] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:45:56,276 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:45:56,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 17] total 52 [2022-11-18 20:45:56,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989092729] [2022-11-18 20:45:56,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:45:56,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-18 20:45:56,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:45:56,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-18 20:45:56,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=549, Invalid=2207, Unknown=0, NotChecked=0, Total=2756 [2022-11-18 20:45:56,280 INFO L87 Difference]: Start difference. First operand 3897 states and 4653 transitions. Second operand has 53 states, 52 states have (on average 3.326923076923077) internal successors, (173), 53 states have internal predecessors, (173), 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) [2022-11-18 20:46:22,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:46:22,289 INFO L93 Difference]: Finished difference Result 7269 states and 8539 transitions. [2022-11-18 20:46:22,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 421 states. [2022-11-18 20:46:22,290 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 3.326923076923077) internal successors, (173), 53 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-11-18 20:46:22,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:46:22,304 INFO L225 Difference]: With dead ends: 7269 [2022-11-18 20:46:22,305 INFO L226 Difference]: Without dead ends: 7268 [2022-11-18 20:46:22,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 454 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109040 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=48941, Invalid=158539, Unknown=0, NotChecked=0, Total=207480 [2022-11-18 20:46:22,321 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2841 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 2855 mSolverCounterSat, 1338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2841 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 4193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1338 IncrementalHoareTripleChecker+Valid, 2855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:46:22,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2841 Valid, 224 Invalid, 4193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1338 Valid, 2855 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-18 20:46:22,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7268 states. [2022-11-18 20:46:23,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7268 to 4830. [2022-11-18 20:46:23,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4830 states, 4827 states have (on average 1.1914232442510877) internal successors, (5751), 4829 states have internal predecessors, (5751), 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) [2022-11-18 20:46:23,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4830 states to 4830 states and 5751 transitions. [2022-11-18 20:46:23,912 INFO L78 Accepts]: Start accepts. Automaton has 4830 states and 5751 transitions. Word has length 59 [2022-11-18 20:46:23,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:46:23,912 INFO L495 AbstractCegarLoop]: Abstraction has 4830 states and 5751 transitions. [2022-11-18 20:46:23,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 3.326923076923077) internal successors, (173), 53 states have internal predecessors, (173), 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) [2022-11-18 20:46:23,913 INFO L276 IsEmpty]: Start isEmpty. Operand 4830 states and 5751 transitions. [2022-11-18 20:46:23,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-18 20:46:23,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:46:23,916 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1] [2022-11-18 20:46:23,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:46:24,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-18 20:46:24,122 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:46:24,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:46:24,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1432367722, now seen corresponding path program 5 times [2022-11-18 20:46:24,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:46:24,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972010003] [2022-11-18 20:46:24,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:46:24,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:46:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:46:24,500 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:46:24,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:46:24,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972010003] [2022-11-18 20:46:24,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972010003] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:46:24,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595478381] [2022-11-18 20:46:24,501 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 20:46:24,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:46:24,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:46:24,502 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:46:24,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 20:46:24,563 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2022-11-18 20:46:24,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:46:24,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:46:24,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:46:24,806 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 64 proven. 21 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-18 20:46:24,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:46:25,085 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 64 proven. 21 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-18 20:46:25,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595478381] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:46:25,085 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:46:25,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11, 11] total 38 [2022-11-18 20:46:25,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276123965] [2022-11-18 20:46:25,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:46:25,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-18 20:46:25,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:46:25,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-18 20:46:25,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1222, Unknown=0, NotChecked=0, Total=1406 [2022-11-18 20:46:25,087 INFO L87 Difference]: Start difference. First operand 4830 states and 5751 transitions. Second operand has 38 states, 38 states have (on average 3.026315789473684) internal successors, (115), 38 states have internal predecessors, (115), 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) [2022-11-18 20:46:35,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:46:35,116 INFO L93 Difference]: Finished difference Result 12685 states and 15088 transitions. [2022-11-18 20:46:35,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 207 states. [2022-11-18 20:46:35,116 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.026315789473684) internal successors, (115), 38 states have internal predecessors, (115), 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 61 [2022-11-18 20:46:35,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:46:35,119 INFO L225 Difference]: With dead ends: 12685 [2022-11-18 20:46:35,119 INFO L226 Difference]: Without dead ends: 536 [2022-11-18 20:46:35,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 143 SyntacticMatches, 1 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22873 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=8632, Invalid=47774, Unknown=0, NotChecked=0, Total=56406 [2022-11-18 20:46:35,134 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1063 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:46:35,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 23 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-18 20:46:35,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-11-18 20:46:35,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 198. [2022-11-18 20:46:35,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 195 states have (on average 1.1076923076923078) internal successors, (216), 197 states have internal predecessors, (216), 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) [2022-11-18 20:46:35,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 216 transitions. [2022-11-18 20:46:35,264 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 216 transitions. Word has length 61 [2022-11-18 20:46:35,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:46:35,264 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 216 transitions. [2022-11-18 20:46:35,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.026315789473684) internal successors, (115), 38 states have internal predecessors, (115), 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) [2022-11-18 20:46:35,265 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 216 transitions. [2022-11-18 20:46:35,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-18 20:46:35,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:46:35,266 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1] [2022-11-18 20:46:35,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:46:35,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:46:35,471 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:46:35,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:46:35,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1916189314, now seen corresponding path program 6 times [2022-11-18 20:46:35,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:46:35,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147240335] [2022-11-18 20:46:35,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:46:35,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:46:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:46:35,806 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:46:35,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:46:35,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147240335] [2022-11-18 20:46:35,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147240335] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:46:35,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315830106] [2022-11-18 20:46:35,807 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 20:46:35,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:46:35,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:46:35,808 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:46:35,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 20:46:35,868 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2022-11-18 20:46:35,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:46:35,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:46:35,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:46:36,346 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:46:36,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:46:36,743 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:46:36,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315830106] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:46:36,744 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:46:36,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 15, 15] total 50 [2022-11-18 20:46:36,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388133841] [2022-11-18 20:46:36,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:46:36,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-11-18 20:46:36,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:46:36,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-11-18 20:46:36,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=553, Invalid=1997, Unknown=0, NotChecked=0, Total=2550 [2022-11-18 20:46:36,746 INFO L87 Difference]: Start difference. First operand 198 states and 216 transitions. Second operand has 51 states, 50 states have (on average 3.58) internal successors, (179), 51 states have internal predecessors, (179), 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) [2022-11-18 20:46:41,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:46:41,037 INFO L93 Difference]: Finished difference Result 465 states and 491 transitions. [2022-11-18 20:46:41,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-11-18 20:46:41,039 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 3.58) internal successors, (179), 51 states have internal predecessors, (179), 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 61 [2022-11-18 20:46:41,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:46:41,041 INFO L225 Difference]: With dead ends: 465 [2022-11-18 20:46:41,041 INFO L226 Difference]: Without dead ends: 464 [2022-11-18 20:46:41,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8914 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=5926, Invalid=15830, Unknown=0, NotChecked=0, Total=21756 [2022-11-18 20:46:41,045 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1631 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1631 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:46:41,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1631 Valid, 65 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [599 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-18 20:46:41,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-11-18 20:46:41,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 207. [2022-11-18 20:46:41,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 204 states have (on average 1.1323529411764706) internal successors, (231), 206 states have internal predecessors, (231), 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) [2022-11-18 20:46:41,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 231 transitions. [2022-11-18 20:46:41,202 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 231 transitions. Word has length 61 [2022-11-18 20:46:41,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:46:41,202 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 231 transitions. [2022-11-18 20:46:41,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 3.58) internal successors, (179), 51 states have internal predecessors, (179), 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) [2022-11-18 20:46:41,202 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 231 transitions. [2022-11-18 20:46:41,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-18 20:46:41,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:46:41,203 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-11-18 20:46:41,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:46:41,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:46:41,407 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:46:41,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:46:41,407 INFO L85 PathProgramCache]: Analyzing trace with hash -565885901, now seen corresponding path program 7 times [2022-11-18 20:46:41,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:46:41,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436824701] [2022-11-18 20:46:41,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:46:41,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:46:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:46:41,940 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 281 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:46:41,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:46:41,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436824701] [2022-11-18 20:46:41,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436824701] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:46:41,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793331360] [2022-11-18 20:46:41,941 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 20:46:41,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:46:41,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:46:41,942 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:46:41,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 20:46:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:46:41,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-18 20:46:42,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:46:42,731 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 281 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:46:42,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:46:43,403 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 281 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:46:43,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793331360] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:46:43,404 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:46:43,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 19, 19] total 64 [2022-11-18 20:46:43,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117511270] [2022-11-18 20:46:43,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:46:43,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-11-18 20:46:43,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:46:43,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-11-18 20:46:43,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=871, Invalid=3289, Unknown=0, NotChecked=0, Total=4160 [2022-11-18 20:46:43,407 INFO L87 Difference]: Start difference. First operand 207 states and 231 transitions. Second operand has 65 states, 64 states have (on average 3.546875) internal successors, (227), 65 states have internal predecessors, (227), 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) [2022-11-18 20:46:51,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:46:51,203 INFO L93 Difference]: Finished difference Result 677 states and 719 transitions. [2022-11-18 20:46:51,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-11-18 20:46:51,203 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 3.546875) internal successors, (227), 65 states have internal predecessors, (227), 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 77 [2022-11-18 20:46:51,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:46:51,206 INFO L225 Difference]: With dead ends: 677 [2022-11-18 20:46:51,206 INFO L226 Difference]: Without dead ends: 676 [2022-11-18 20:46:51,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19403 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=12110, Invalid=33046, Unknown=0, NotChecked=0, Total=45156 [2022-11-18 20:46:51,210 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 2650 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 1090 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2650 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 1928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1090 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:46:51,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2650 Valid, 75 Invalid, 1928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1090 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-18 20:46:51,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2022-11-18 20:46:51,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 239. [2022-11-18 20:46:51,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 236 states have (on average 1.1610169491525424) internal successors, (274), 238 states have internal predecessors, (274), 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) [2022-11-18 20:46:51,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 274 transitions. [2022-11-18 20:46:51,388 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 274 transitions. Word has length 77 [2022-11-18 20:46:51,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:46:51,388 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 274 transitions. [2022-11-18 20:46:51,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 3.546875) internal successors, (227), 65 states have internal predecessors, (227), 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) [2022-11-18 20:46:51,388 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 274 transitions. [2022-11-18 20:46:51,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-18 20:46:51,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:46:51,389 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:46:51,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-11-18 20:46:51,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:46:51,595 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:46:51,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:46:51,595 INFO L85 PathProgramCache]: Analyzing trace with hash 99136431, now seen corresponding path program 3 times [2022-11-18 20:46:51,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:46:51,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648649410] [2022-11-18 20:46:51,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:46:51,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:46:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:46:51,867 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:46:51,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:46:51,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648649410] [2022-11-18 20:46:51,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648649410] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:46:51,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438055651] [2022-11-18 20:46:51,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:46:51,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:46:51,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:46:51,869 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:46:51,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-18 20:46:51,923 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-11-18 20:46:51,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:46:51,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:46:51,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:46:52,063 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:46:52,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:46:52,492 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:46:52,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438055651] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:46:52,493 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:46:52,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2022-11-18 20:46:52,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180242600] [2022-11-18 20:46:52,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:46:52,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-18 20:46:52,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:46:52,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-18 20:46:52,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-11-18 20:46:52,495 INFO L87 Difference]: Start difference. First operand 239 states and 274 transitions. Second operand has 32 states, 31 states have (on average 4.967741935483871) internal successors, (154), 32 states have internal predecessors, (154), 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) [2022-11-18 20:46:53,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:46:53,810 INFO L93 Difference]: Finished difference Result 984 states and 1084 transitions. [2022-11-18 20:46:53,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-18 20:46:53,811 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 4.967741935483871) internal successors, (154), 32 states have internal predecessors, (154), 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 78 [2022-11-18 20:46:53,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:46:53,814 INFO L225 Difference]: With dead ends: 984 [2022-11-18 20:46:53,814 INFO L226 Difference]: Without dead ends: 982 [2022-11-18 20:46:53,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-11-18 20:46:53,816 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 557 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:46:53,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 165 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:46:53,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2022-11-18 20:46:53,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 266. [2022-11-18 20:46:53,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 263 states have (on average 1.1406844106463878) internal successors, (300), 265 states have internal predecessors, (300), 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) [2022-11-18 20:46:54,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 300 transitions. [2022-11-18 20:46:54,000 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 300 transitions. Word has length 78 [2022-11-18 20:46:54,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:46:54,001 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 300 transitions. [2022-11-18 20:46:54,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 4.967741935483871) internal successors, (154), 32 states have internal predecessors, (154), 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) [2022-11-18 20:46:54,001 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 300 transitions. [2022-11-18 20:46:54,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-18 20:46:54,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:46:54,002 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 1, 1, 1, 1] [2022-11-18 20:46:54,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:46:54,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:46:54,208 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:46:54,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:46:54,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1130894914, now seen corresponding path program 3 times [2022-11-18 20:46:54,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:46:54,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890195901] [2022-11-18 20:46:54,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:46:54,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:46:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:46:54,933 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:46:54,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:46:54,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890195901] [2022-11-18 20:46:54,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890195901] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:46:54,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117318990] [2022-11-18 20:46:54,934 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:46:54,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:46:54,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:46:54,935 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:46:54,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-18 20:46:55,013 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-11-18 20:46:55,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:46:55,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 20:46:55,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:46:56,468 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:46:56,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:46:57,863 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:46:57,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117318990] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:46:57,863 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:46:57,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 91 [2022-11-18 20:46:57,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071822276] [2022-11-18 20:46:57,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:46:57,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2022-11-18 20:46:57,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:46:57,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2022-11-18 20:46:57,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1637, Invalid=6735, Unknown=0, NotChecked=0, Total=8372 [2022-11-18 20:46:57,867 INFO L87 Difference]: Start difference. First operand 266 states and 300 transitions. Second operand has 92 states, 91 states have (on average 2.989010989010989) internal successors, (272), 92 states have internal predecessors, (272), 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) [2022-11-18 20:47:07,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:47:07,789 INFO L93 Difference]: Finished difference Result 587 states and 636 transitions. [2022-11-18 20:47:07,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-11-18 20:47:07,790 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 91 states have (on average 2.989010989010989) internal successors, (272), 92 states have internal predecessors, (272), 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 92 [2022-11-18 20:47:07,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:47:07,792 INFO L225 Difference]: With dead ends: 587 [2022-11-18 20:47:07,792 INFO L226 Difference]: Without dead ends: 586 [2022-11-18 20:47:07,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9762 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=8096, Invalid=20296, Unknown=0, NotChecked=0, Total=28392 [2022-11-18 20:47:07,795 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1679 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 3671 mSolverCounterSat, 810 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1679 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 4481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 810 IncrementalHoareTripleChecker+Valid, 3671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:47:07,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1679 Valid, 220 Invalid, 4481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [810 Valid, 3671 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-18 20:47:07,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-11-18 20:47:08,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 362. [2022-11-18 20:47:08,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 359 states have (on average 1.1030640668523677) internal successors, (396), 361 states have internal predecessors, (396), 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) [2022-11-18 20:47:08,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 396 transitions. [2022-11-18 20:47:08,135 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 396 transitions. Word has length 92 [2022-11-18 20:47:08,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:47:08,135 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 396 transitions. [2022-11-18 20:47:08,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 91 states have (on average 2.989010989010989) internal successors, (272), 92 states have internal predecessors, (272), 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) [2022-11-18 20:47:08,135 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 396 transitions. [2022-11-18 20:47:08,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-18 20:47:08,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:47:08,136 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 5, 5, 5, 5, 5, 1, 1, 1, 1] [2022-11-18 20:47:08,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-18 20:47:08,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:47:08,337 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:47:08,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:47:08,337 INFO L85 PathProgramCache]: Analyzing trace with hash 582382769, now seen corresponding path program 8 times [2022-11-18 20:47:08,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:47:08,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398011773] [2022-11-18 20:47:08,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:47:08,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:47:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:09,028 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 0 proven. 425 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:09,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:47:09,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398011773] [2022-11-18 20:47:09,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398011773] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:47:09,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876981696] [2022-11-18 20:47:09,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:47:09,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:47:09,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:47:09,031 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:47:09,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-18 20:47:09,099 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:47:09,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:47:09,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-18 20:47:09,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:47:10,370 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 0 proven. 425 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:10,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:47:11,703 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 0 proven. 425 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:11,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876981696] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:47:11,703 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:47:11,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 94 [2022-11-18 20:47:11,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616227291] [2022-11-18 20:47:11,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:47:11,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-11-18 20:47:11,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:47:11,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-11-18 20:47:11,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1279, Invalid=7651, Unknown=0, NotChecked=0, Total=8930 [2022-11-18 20:47:11,706 INFO L87 Difference]: Start difference. First operand 362 states and 396 transitions. Second operand has 95 states, 94 states have (on average 2.925531914893617) internal successors, (275), 95 states have internal predecessors, (275), 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) [2022-11-18 20:47:47,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:47:47,652 INFO L93 Difference]: Finished difference Result 1423 states and 1484 transitions. [2022-11-18 20:47:47,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 365 states. [2022-11-18 20:47:47,652 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 2.925531914893617) internal successors, (275), 95 states have internal predecessors, (275), 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 93 [2022-11-18 20:47:47,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:47:47,655 INFO L225 Difference]: With dead ends: 1423 [2022-11-18 20:47:47,656 INFO L226 Difference]: Without dead ends: 1422 [2022-11-18 20:47:47,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 436 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82000 ImplicationChecksByTransitivity, 29.3s TimeCoverageRelationStatistics Valid=41384, Invalid=150022, Unknown=0, NotChecked=0, Total=191406 [2022-11-18 20:47:47,665 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 4522 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 8292 mSolverCounterSat, 1661 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4522 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 9953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1661 IncrementalHoareTripleChecker+Valid, 8292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:47:47,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4522 Valid, 58 Invalid, 9953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1661 Valid, 8292 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-18 20:47:47,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2022-11-18 20:47:48,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 405. [2022-11-18 20:47:48,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 402 states have (on average 1.092039800995025) internal successors, (439), 404 states have internal predecessors, (439), 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) [2022-11-18 20:47:48,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 439 transitions. [2022-11-18 20:47:48,157 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 439 transitions. Word has length 93 [2022-11-18 20:47:48,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:47:48,157 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 439 transitions. [2022-11-18 20:47:48,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 2.925531914893617) internal successors, (275), 95 states have internal predecessors, (275), 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) [2022-11-18 20:47:48,157 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 439 transitions. [2022-11-18 20:47:48,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-18 20:47:48,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:47:48,159 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1] [2022-11-18 20:47:48,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-18 20:47:48,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-18 20:47:48,364 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:47:48,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:47:48,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1941769595, now seen corresponding path program 9 times [2022-11-18 20:47:48,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:47:48,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434571941] [2022-11-18 20:47:48,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:47:48,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:47:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:49,074 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 487 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:49,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:47:49,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434571941] [2022-11-18 20:47:49,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434571941] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:47:49,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424575814] [2022-11-18 20:47:49,075 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:47:49,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:47:49,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:47:49,076 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:47:49,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-18 20:47:49,148 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2022-11-18 20:47:49,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:47:49,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-18 20:47:49,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:47:49,958 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 487 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:49,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:47:50,787 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 487 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:50,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424575814] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:47:50,787 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:47:50,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 24, 24] total 82 [2022-11-18 20:47:50,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123854732] [2022-11-18 20:47:50,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:47:50,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2022-11-18 20:47:50,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:47:50,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2022-11-18 20:47:50,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1399, Invalid=5407, Unknown=0, NotChecked=0, Total=6806 [2022-11-18 20:47:50,790 INFO L87 Difference]: Start difference. First operand 405 states and 439 transitions. Second operand has 83 states, 82 states have (on average 3.5365853658536586) internal successors, (290), 83 states have internal predecessors, (290), 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) [2022-11-18 20:48:05,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:05,965 INFO L93 Difference]: Finished difference Result 1130 states and 1177 transitions. [2022-11-18 20:48:05,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 228 states. [2022-11-18 20:48:05,965 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 82 states have (on average 3.5365853658536586) internal successors, (290), 83 states have internal predecessors, (290), 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 98 [2022-11-18 20:48:05,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:05,968 INFO L225 Difference]: With dead ends: 1130 [2022-11-18 20:48:05,968 INFO L226 Difference]: Without dead ends: 1129 [2022-11-18 20:48:05,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 297 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39149 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=23312, Invalid=65790, Unknown=0, NotChecked=0, Total=89102 [2022-11-18 20:48:05,976 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4321 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 1556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4321 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 2691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1556 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:05,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4321 Valid, 96 Invalid, 2691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1556 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-18 20:48:05,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2022-11-18 20:48:06,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 368. [2022-11-18 20:48:06,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 365 states have (on average 1.104109589041096) internal successors, (403), 367 states have internal predecessors, (403), 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) [2022-11-18 20:48:06,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 403 transitions. [2022-11-18 20:48:06,679 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 403 transitions. Word has length 98 [2022-11-18 20:48:06,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:06,679 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 403 transitions. [2022-11-18 20:48:06,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 82 states have (on average 3.5365853658536586) internal successors, (290), 83 states have internal predecessors, (290), 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) [2022-11-18 20:48:06,679 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 403 transitions. [2022-11-18 20:48:06,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-18 20:48:06,680 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:06,680 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 7, 7, 7, 7, 7, 1, 1, 1, 1] [2022-11-18 20:48:06,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-11-18 20:48:06,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-18 20:48:06,881 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:48:06,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:06,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1143416763, now seen corresponding path program 10 times [2022-11-18 20:48:06,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:06,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050418648] [2022-11-18 20:48:06,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:06,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:07,799 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:48:07,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:07,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050418648] [2022-11-18 20:48:07,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050418648] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:07,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014534060] [2022-11-18 20:48:07,800 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:48:07,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:07,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:07,801 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:07,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-18 20:48:07,867 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:48:07,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:48:07,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-18 20:48:07,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:09,652 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:48:09,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:48:11,657 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:48:11,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014534060] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:48:11,658 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:48:11,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 118 [2022-11-18 20:48:11,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5225450] [2022-11-18 20:48:11,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:48:11,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2022-11-18 20:48:11,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:11,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2022-11-18 20:48:11,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1939, Invalid=12103, Unknown=0, NotChecked=0, Total=14042 [2022-11-18 20:48:11,662 INFO L87 Difference]: Start difference. First operand 368 states and 403 transitions. Second operand has 119 states, 118 states have (on average 2.889830508474576) internal successors, (341), 119 states have internal predecessors, (341), 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) [2022-11-18 20:49:29,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:49:29,210 INFO L93 Difference]: Finished difference Result 1971 states and 2039 transitions. [2022-11-18 20:49:29,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 577 states. [2022-11-18 20:49:29,211 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 118 states have (on average 2.889830508474576) internal successors, (341), 119 states have internal predecessors, (341), 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 115 [2022-11-18 20:49:29,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:49:29,213 INFO L225 Difference]: With dead ends: 1971 [2022-11-18 20:49:29,213 INFO L226 Difference]: Without dead ends: 1970 [2022-11-18 20:49:29,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 668 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203804 ImplicationChecksByTransitivity, 62.8s TimeCoverageRelationStatistics Valid=94785, Invalid=353445, Unknown=0, NotChecked=0, Total=448230 [2022-11-18 20:49:29,232 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 6795 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 14820 mSolverCounterSat, 2704 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6795 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 17524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2704 IncrementalHoareTripleChecker+Valid, 14820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:49:29,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6795 Valid, 51 Invalid, 17524 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2704 Valid, 14820 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-11-18 20:49:29,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2022-11-18 20:49:30,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 466. [2022-11-18 20:49:30,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 463 states have (on average 1.0842332613390928) internal successors, (502), 465 states have internal predecessors, (502), 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) [2022-11-18 20:49:30,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 502 transitions. [2022-11-18 20:49:30,027 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 502 transitions. Word has length 115 [2022-11-18 20:49:30,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:49:30,027 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 502 transitions. [2022-11-18 20:49:30,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 118 states have (on average 2.889830508474576) internal successors, (341), 119 states have internal predecessors, (341), 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) [2022-11-18 20:49:30,028 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 502 transitions. [2022-11-18 20:49:30,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-18 20:49:30,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:49:30,029 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1] [2022-11-18 20:49:30,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-18 20:49:30,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-18 20:49:30,230 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:49:30,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:49:30,230 INFO L85 PathProgramCache]: Analyzing trace with hash -971648899, now seen corresponding path program 11 times [2022-11-18 20:49:30,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:49:30,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403410565] [2022-11-18 20:49:30,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:49:30,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:49:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:31,186 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:49:31,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:49:31,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403410565] [2022-11-18 20:49:31,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403410565] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:49:31,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151563392] [2022-11-18 20:49:31,186 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 20:49:31,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:49:31,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:49:31,187 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:49:31,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-18 20:49:31,259 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2022-11-18 20:49:31,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:49:31,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-18 20:49:31,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:49:32,489 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:49:32,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:49:33,720 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:49:33,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151563392] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:49:33,720 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:49:33,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 29, 29] total 100 [2022-11-18 20:49:33,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961708320] [2022-11-18 20:49:33,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:49:33,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2022-11-18 20:49:33,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:49:33,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2022-11-18 20:49:33,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2050, Invalid=8050, Unknown=0, NotChecked=0, Total=10100 [2022-11-18 20:49:33,723 INFO L87 Difference]: Start difference. First operand 466 states and 502 transitions. Second operand has 101 states, 100 states have (on average 3.53) internal successors, (353), 101 states have internal predecessors, (353), 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) [2022-11-18 20:50:02,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:02,780 INFO L93 Difference]: Finished difference Result 1488 states and 1548 transitions. [2022-11-18 20:50:02,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 336 states. [2022-11-18 20:50:02,781 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 100 states have (on average 3.53) internal successors, (353), 101 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2022-11-18 20:50:02,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:02,783 INFO L225 Difference]: With dead ends: 1488 [2022-11-18 20:50:02,784 INFO L226 Difference]: Without dead ends: 1487 [2022-11-18 20:50:02,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 601 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 419 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80399 ImplicationChecksByTransitivity, 23.5s TimeCoverageRelationStatistics Valid=44431, Invalid=132389, Unknown=0, NotChecked=0, Total=176820 [2022-11-18 20:50:02,794 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6313 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 2487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6313 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 3786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2487 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:02,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6313 Valid, 110 Invalid, 3786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2487 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-18 20:50:02,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2022-11-18 20:50:03,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 419. [2022-11-18 20:50:03,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 416 states have (on average 1.1274038461538463) internal successors, (469), 418 states have internal predecessors, (469), 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) [2022-11-18 20:50:03,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 469 transitions. [2022-11-18 20:50:03,427 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 469 transitions. Word has length 119 [2022-11-18 20:50:03,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:03,427 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 469 transitions. [2022-11-18 20:50:03,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 100 states have (on average 3.53) internal successors, (353), 101 states have internal predecessors, (353), 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) [2022-11-18 20:50:03,427 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 469 transitions. [2022-11-18 20:50:03,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-18 20:50:03,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:03,428 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 9, 9, 9, 9, 9, 1, 1, 1, 1] [2022-11-18 20:50:03,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-18 20:50:03,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-18 20:50:03,629 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:50:03,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:03,629 INFO L85 PathProgramCache]: Analyzing trace with hash 2011120581, now seen corresponding path program 12 times [2022-11-18 20:50:03,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:03,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945031780] [2022-11-18 20:50:03,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:03,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:04,773 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 0 proven. 931 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:04,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:04,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945031780] [2022-11-18 20:50:04,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945031780] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:50:04,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755338758] [2022-11-18 20:50:04,774 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 20:50:04,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:50:04,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:50:04,775 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:50:04,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-18 20:50:04,853 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2022-11-18 20:50:04,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:50:04,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-18 20:50:04,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:50:07,150 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 0 proven. 931 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:07,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:50:09,920 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 0 proven. 931 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:09,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755338758] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:50:09,920 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:50:09,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 142 [2022-11-18 20:50:09,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819864627] [2022-11-18 20:50:09,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:50:09,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 143 states [2022-11-18 20:50:09,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:09,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2022-11-18 20:50:09,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2759, Invalid=17547, Unknown=0, NotChecked=0, Total=20306 [2022-11-18 20:50:09,926 INFO L87 Difference]: Start difference. First operand 419 states and 469 transitions. Second operand has 143 states, 142 states have (on average 2.8661971830985915) internal successors, (407), 143 states have internal predecessors, (407), 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) [2022-11-18 20:52:34,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:34,881 INFO L93 Difference]: Finished difference Result 2716 states and 2813 transitions. [2022-11-18 20:52:34,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 835 states. [2022-11-18 20:52:34,881 INFO L78 Accepts]: Start accepts. Automaton has has 143 states, 142 states have (on average 2.8661971830985915) internal successors, (407), 143 states have internal predecessors, (407), 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 137 [2022-11-18 20:52:34,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:34,885 INFO L225 Difference]: With dead ends: 2716 [2022-11-18 20:52:34,885 INFO L226 Difference]: Without dead ends: 2715 [2022-11-18 20:52:34,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1126 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 946 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426152 ImplicationChecksByTransitivity, 117.3s TimeCoverageRelationStatistics Valid=186608, Invalid=711148, Unknown=0, NotChecked=0, Total=897756 [2022-11-18 20:52:34,922 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 12937 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 20855 mSolverCounterSat, 4772 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12937 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 25627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4772 IncrementalHoareTripleChecker+Valid, 20855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:34,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12937 Valid, 51 Invalid, 25627 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4772 Valid, 20855 Invalid, 0 Unknown, 0 Unchecked, 12.6s Time] [2022-11-18 20:52:34,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2715 states. [2022-11-18 20:52:36,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2715 to 602. [2022-11-18 20:52:36,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 599 states have (on average 1.0984974958263773) internal successors, (658), 601 states have internal predecessors, (658), 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) [2022-11-18 20:52:36,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 658 transitions. [2022-11-18 20:52:36,193 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 658 transitions. Word has length 137 [2022-11-18 20:52:36,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:36,193 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 658 transitions. [2022-11-18 20:52:36,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 143 states, 142 states have (on average 2.8661971830985915) internal successors, (407), 143 states have internal predecessors, (407), 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) [2022-11-18 20:52:36,194 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 658 transitions. [2022-11-18 20:52:36,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-18 20:52:36,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:36,195 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 8, 8, 8, 8, 7, 7, 1, 1, 1, 1] [2022-11-18 20:52:36,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-18 20:52:36,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-18 20:52:36,395 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:52:36,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:36,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1775530767, now seen corresponding path program 13 times [2022-11-18 20:52:36,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:36,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842990302] [2022-11-18 20:52:36,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:36,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:37,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1070 backedges. 0 proven. 1070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:37,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:37,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842990302] [2022-11-18 20:52:37,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842990302] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:52:37,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538801006] [2022-11-18 20:52:37,635 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 20:52:37,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:52:37,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:52:37,636 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:52:37,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-18 20:52:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:37,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-18 20:52:37,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:52:39,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1070 backedges. 0 proven. 1070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:39,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:52:40,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1070 backedges. 0 proven. 1070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:40,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538801006] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:52:40,907 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:52:40,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 34, 34] total 118 [2022-11-18 20:52:40,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994863901] [2022-11-18 20:52:40,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:52:40,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2022-11-18 20:52:40,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:40,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2022-11-18 20:52:40,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2828, Invalid=11214, Unknown=0, NotChecked=0, Total=14042 [2022-11-18 20:52:40,912 INFO L87 Difference]: Start difference. First operand 602 states and 658 transitions. Second operand has 119 states, 118 states have (on average 3.5254237288135593) internal successors, (416), 119 states have internal predecessors, (416), 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) [2022-11-18 20:53:31,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:53:31,662 INFO L93 Difference]: Finished difference Result 1801 states and 1895 transitions. [2022-11-18 20:53:31,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 463 states. [2022-11-18 20:53:31,663 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 118 states have (on average 3.5254237288135593) internal successors, (416), 119 states have internal predecessors, (416), 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 140 [2022-11-18 20:53:31,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:53:31,665 INFO L225 Difference]: With dead ends: 1801 [2022-11-18 20:53:31,665 INFO L226 Difference]: Without dead ends: 1800 [2022-11-18 20:53:31,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 774 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 560 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147328 ImplicationChecksByTransitivity, 41.8s TimeCoverageRelationStatistics Valid=77011, Invalid=238271, Unknown=0, NotChecked=0, Total=315282 [2022-11-18 20:53:31,692 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 10357 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 3863 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10357 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 5401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3863 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:53:31,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10357 Valid, 126 Invalid, 5401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3863 Valid, 1538 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-18 20:53:31,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2022-11-18 20:53:32,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 480. [2022-11-18 20:53:32,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 477 states have (on average 1.1530398322851152) internal successors, (550), 479 states have internal predecessors, (550), 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) [2022-11-18 20:53:32,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 550 transitions. [2022-11-18 20:53:32,588 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 550 transitions. Word has length 140 [2022-11-18 20:53:32,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:53:32,588 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 550 transitions. [2022-11-18 20:53:32,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 118 states have (on average 3.5254237288135593) internal successors, (416), 119 states have internal predecessors, (416), 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) [2022-11-18 20:53:32,588 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 550 transitions. [2022-11-18 20:53:32,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-18 20:53:32,589 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:53:32,589 INFO L195 NwaCegarLoop]: trace histogram [31, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:32,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-18 20:53:32,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-18 20:53:32,790 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:53:32,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:32,790 INFO L85 PathProgramCache]: Analyzing trace with hash 89432751, now seen corresponding path program 4 times [2022-11-18 20:53:32,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:32,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514135333] [2022-11-18 20:53:32,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:32,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:33,646 INFO L134 CoverageAnalysis]: Checked inductivity of 2235 backedges. 0 proven. 2235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:33,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:33,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514135333] [2022-11-18 20:53:33,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514135333] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:53:33,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176414148] [2022-11-18 20:53:33,646 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:53:33,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:53:33,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:53:33,648 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:53:33,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-18 20:53:33,724 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:53:33,724 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:53:33,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-18 20:53:33,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:33,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2235 backedges. 0 proven. 2235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:33,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:53:35,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2235 backedges. 0 proven. 2235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:35,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176414148] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:53:35,361 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:53:35,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 63 [2022-11-18 20:53:35,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157710192] [2022-11-18 20:53:35,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:53:35,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-11-18 20:53:35,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:35,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-11-18 20:53:35,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2022-11-18 20:53:35,364 INFO L87 Difference]: Start difference. First operand 480 states and 550 transitions. Second operand has 64 states, 63 states have (on average 4.984126984126984) internal successors, (314), 64 states have internal predecessors, (314), 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) [2022-11-18 20:53:43,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:53:43,657 INFO L93 Difference]: Finished difference Result 2743 states and 2956 transitions. [2022-11-18 20:53:43,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-11-18 20:53:43,658 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 4.984126984126984) internal successors, (314), 64 states have internal predecessors, (314), 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 158 [2022-11-18 20:53:43,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:53:43,661 INFO L225 Difference]: With dead ends: 2743 [2022-11-18 20:53:43,661 INFO L226 Difference]: Without dead ends: 2741 [2022-11-18 20:53:43,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2022-11-18 20:53:43,662 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 1194 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:53:43,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1194 Valid, 327 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:53:43,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2022-11-18 20:53:44,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 559. [2022-11-18 20:53:44,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 556 states have (on average 1.1348920863309353) internal successors, (631), 558 states have internal predecessors, (631), 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) [2022-11-18 20:53:44,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 631 transitions. [2022-11-18 20:53:44,463 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 631 transitions. Word has length 158 [2022-11-18 20:53:44,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:53:44,464 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 631 transitions. [2022-11-18 20:53:44,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 4.984126984126984) internal successors, (314), 64 states have internal predecessors, (314), 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) [2022-11-18 20:53:44,464 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 631 transitions. [2022-11-18 20:53:44,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-11-18 20:53:44,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:53:44,465 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 16, 11, 11, 11, 11, 11, 1, 1, 1, 1] [2022-11-18 20:53:44,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-11-18 20:53:44,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:53:44,665 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:53:44,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:44,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1847899953, now seen corresponding path program 14 times [2022-11-18 20:53:44,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:44,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125366444] [2022-11-18 20:53:44,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:44,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:46,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1262 backedges. 0 proven. 1262 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:46,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:46,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125366444] [2022-11-18 20:53:46,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125366444] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:53:46,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982123635] [2022-11-18 20:53:46,306 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:53:46,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:53:46,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:53:46,308 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:53:46,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-18 20:53:46,388 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:53:46,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:53:46,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-18 20:53:46,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:49,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1262 backedges. 0 proven. 1262 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:49,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:53:52,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1262 backedges. 0 proven. 1262 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:52,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982123635] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:53:52,021 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:53:52,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 45, 45] total 144 [2022-11-18 20:53:52,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697273577] [2022-11-18 20:53:52,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:53:52,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2022-11-18 20:53:52,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:52,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2022-11-18 20:53:52,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3643, Invalid=17237, Unknown=0, NotChecked=0, Total=20880 [2022-11-18 20:53:52,025 INFO L87 Difference]: Start difference. First operand 559 states and 631 transitions. Second operand has 145 states, 144 states have (on average 3.2847222222222223) internal successors, (473), 145 states have internal predecessors, (473), 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) [2022-11-18 20:55:09,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:09,779 INFO L93 Difference]: Finished difference Result 2200 states and 2303 transitions. [2022-11-18 20:55:09,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 571 states. [2022-11-18 20:55:09,780 INFO L78 Accepts]: Start accepts. Automaton has has 145 states, 144 states have (on average 3.2847222222222223) internal successors, (473), 145 states have internal predecessors, (473), 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 159 [2022-11-18 20:55:09,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:09,782 INFO L225 Difference]: With dead ends: 2200 [2022-11-18 20:55:09,782 INFO L226 Difference]: Without dead ends: 2199 [2022-11-18 20:55:09,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 911 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 681 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240843 ImplicationChecksByTransitivity, 67.3s TimeCoverageRelationStatistics Valid=136350, Invalid=329456, Unknown=0, NotChecked=0, Total=465806 [2022-11-18 20:55:09,800 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 12216 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 2959 mSolverCounterSat, 5216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12216 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 8175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5216 IncrementalHoareTripleChecker+Valid, 2959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:09,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12216 Valid, 204 Invalid, 8175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5216 Valid, 2959 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-18 20:55:09,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2199 states. [2022-11-18 20:55:11,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2199 to 754. [2022-11-18 20:55:11,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 751 states have (on average 1.1091877496671105) internal successors, (833), 753 states have internal predecessors, (833), 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) [2022-11-18 20:55:11,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 833 transitions. [2022-11-18 20:55:11,314 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 833 transitions. Word has length 159 [2022-11-18 20:55:11,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:11,314 INFO L495 AbstractCegarLoop]: Abstraction has 754 states and 833 transitions. [2022-11-18 20:55:11,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 144 states have (on average 3.2847222222222223) internal successors, (473), 145 states have internal predecessors, (473), 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) [2022-11-18 20:55:11,314 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 833 transitions. [2022-11-18 20:55:11,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-18 20:55:11,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:11,315 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 9, 9, 9, 9, 8, 8, 1, 1, 1, 1] [2022-11-18 20:55:11,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-11-18 20:55:11,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-11-18 20:55:11,516 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:55:11,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:11,517 INFO L85 PathProgramCache]: Analyzing trace with hash -898349625, now seen corresponding path program 15 times [2022-11-18 20:55:11,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:11,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394754088] [2022-11-18 20:55:11,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:11,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:13,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1447 backedges. 0 proven. 1447 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:13,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:13,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394754088] [2022-11-18 20:55:13,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394754088] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:55:13,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964314299] [2022-11-18 20:55:13,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:55:13,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:13,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:13,114 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:55:13,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-18 20:55:13,204 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 25 check-sat command(s) [2022-11-18 20:55:13,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:55:13,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-18 20:55:13,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:15,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1447 backedges. 0 proven. 1447 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:15,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:55:17,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1447 backedges. 0 proven. 1447 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:17,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964314299] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:55:17,069 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:55:17,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 39, 39] total 136 [2022-11-18 20:55:17,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100335170] [2022-11-18 20:55:17,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:55:17,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 137 states [2022-11-18 20:55:17,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:17,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2022-11-18 20:55:17,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3731, Invalid=14901, Unknown=0, NotChecked=0, Total=18632 [2022-11-18 20:55:17,075 INFO L87 Difference]: Start difference. First operand 754 states and 833 transitions. Second operand has 137 states, 136 states have (on average 3.5220588235294117) internal successors, (479), 137 states have internal predecessors, (479), 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) [2022-11-18 20:56:36,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:56:36,367 INFO L93 Difference]: Finished difference Result 2336 states and 2438 transitions. [2022-11-18 20:56:36,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 579 states. [2022-11-18 20:56:36,367 INFO L78 Accepts]: Start accepts. Automaton has has 137 states, 136 states have (on average 3.5220588235294117) internal successors, (479), 137 states have internal predecessors, (479), 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 161 [2022-11-18 20:56:36,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:56:36,370 INFO L225 Difference]: With dead ends: 2336 [2022-11-18 20:56:36,370 INFO L226 Difference]: Without dead ends: 2335 [2022-11-18 20:56:36,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 936 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 690 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223945 ImplicationChecksByTransitivity, 63.9s TimeCoverageRelationStatistics Valid=115790, Invalid=362382, Unknown=0, NotChecked=0, Total=478172 [2022-11-18 20:56:36,403 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 14810 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 5862 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14810 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 7627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5862 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:56:36,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14810 Valid, 145 Invalid, 7627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5862 Valid, 1765 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-18 20:56:36,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2335 states. [2022-11-18 20:56:38,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2335 to 651. [2022-11-18 20:56:38,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 648 states have (on average 1.1188271604938271) internal successors, (725), 650 states have internal predecessors, (725), 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) [2022-11-18 20:56:38,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 725 transitions. [2022-11-18 20:56:38,142 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 725 transitions. Word has length 161 [2022-11-18 20:56:38,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:56:38,142 INFO L495 AbstractCegarLoop]: Abstraction has 651 states and 725 transitions. [2022-11-18 20:56:38,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 137 states, 136 states have (on average 3.5220588235294117) internal successors, (479), 137 states have internal predecessors, (479), 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) [2022-11-18 20:56:38,143 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 725 transitions. [2022-11-18 20:56:38,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-18 20:56:38,143 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:56:38,143 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 18, 18, 13, 13, 13, 13, 13, 1, 1, 1, 1] [2022-11-18 20:56:38,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-18 20:56:38,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-11-18 20:56:38,344 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:56:38,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:38,344 INFO L85 PathProgramCache]: Analyzing trace with hash -2049460519, now seen corresponding path program 16 times [2022-11-18 20:56:38,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:38,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383133034] [2022-11-18 20:56:38,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:38,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:40,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1645 backedges. 0 proven. 1645 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:40,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:40,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383133034] [2022-11-18 20:56:40,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383133034] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:56:40,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057672156] [2022-11-18 20:56:40,174 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:56:40,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:56:40,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:56:40,175 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:56:40,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6652c0af-5698-4fa5-afaa-b81391a1f2b0/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-11-18 20:56:40,262 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:56:40,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:56:40,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 66 conjunts are in the unsatisfiable core [2022-11-18 20:56:40,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:56:43,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1645 backedges. 0 proven. 1645 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:43,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:56:48,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1645 backedges. 0 proven. 1645 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:48,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057672156] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:56:48,692 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:56:48,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 190 [2022-11-18 20:56:48,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809999795] [2022-11-18 20:56:48,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:56:48,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2022-11-18 20:56:48,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:48,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2022-11-18 20:56:48,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4879, Invalid=31411, Unknown=0, NotChecked=0, Total=36290 [2022-11-18 20:56:48,697 INFO L87 Difference]: Start difference. First operand 651 states and 725 transitions. Second operand has 191 states, 190 states have (on average 2.836842105263158) internal successors, (539), 191 states have internal predecessors, (539), 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)