./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN --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 f79e4118373e847e0fb27fcdde0c282d507ddb96f3173b4556e1de9cae44280f --- 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-6b4ec56 [2022-11-20 11:43:05,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:43:05,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:43:05,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:43:05,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:43:05,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:43:05,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:43:05,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:43:05,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:43:05,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:43:05,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:43:05,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:43:05,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:43:05,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:43:05,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:43:05,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:43:05,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:43:05,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:43:05,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:43:05,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:43:05,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:43:05,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:43:05,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:43:05,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:43:05,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:43:05,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:43:05,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:43:05,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:43:05,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:43:05,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:43:05,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:43:05,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:43:05,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:43:05,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:43:05,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:43:05,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:43:05,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:43:05,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:43:05,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:43:05,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:43:05,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:43:05,319 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-20 11:43:05,355 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:43:05,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:43:05,356 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:43:05,356 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:43:05,357 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:43:05,357 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:43:05,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:43:05,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:43:05,358 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:43:05,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:43:05,359 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:43:05,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:43:05,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:43:05,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:43:05,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:43:05,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:43:05,360 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:43:05,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:43:05,360 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:43:05,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:43:05,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:43:05,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:43:05,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:43:05,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:43:05,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:43:05,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:43:05,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:43:05,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:43:05,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:43:05,367 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:43:05,367 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:43:05,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:43:05,367 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_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f79e4118373e847e0fb27fcdde0c282d507ddb96f3173b4556e1de9cae44280f [2022-11-20 11:43:05,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:43:05,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:43:05,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:43:05,740 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:43:05,741 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:43:05,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-1.c [2022-11-20 11:43:08,831 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:43:09,118 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:43:09,119 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-1.c [2022-11-20 11:43:09,125 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/data/997766285/8e33b9ef898c43b28b94ebb5c9430033/FLAGe603d809c [2022-11-20 11:43:09,141 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/data/997766285/8e33b9ef898c43b28b94ebb5c9430033 [2022-11-20 11:43:09,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:43:09,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:43:09,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:43:09,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:43:09,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:43:09,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:43:09" (1/1) ... [2022-11-20 11:43:09,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cb5a21a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:09, skipping insertion in model container [2022-11-20 11:43:09,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:43:09" (1/1) ... [2022-11-20 11:43:09,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:43:09,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:43:09,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:43:09,349 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:43:09,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:43:09,378 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:43:09,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:09 WrapperNode [2022-11-20 11:43:09,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:43:09,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:43:09,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:43:09,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:43:09,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:09" (1/1) ... [2022-11-20 11:43:09,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:09" (1/1) ... [2022-11-20 11:43:09,413 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-11-20 11:43:09,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:43:09,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:43:09,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:43:09,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:43:09,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:09" (1/1) ... [2022-11-20 11:43:09,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:09" (1/1) ... [2022-11-20 11:43:09,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:09" (1/1) ... [2022-11-20 11:43:09,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:09" (1/1) ... [2022-11-20 11:43:09,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:09" (1/1) ... [2022-11-20 11:43:09,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:09" (1/1) ... [2022-11-20 11:43:09,444 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:09" (1/1) ... [2022-11-20 11:43:09,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:09" (1/1) ... [2022-11-20 11:43:09,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:43:09,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:43:09,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:43:09,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:43:09,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:09" (1/1) ... [2022-11-20 11:43:09,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:43:09,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:43:09,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:43:09,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:43:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:43:09,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:43:09,636 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:43:09,638 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:43:09,797 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:43:09,803 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:43:09,803 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:43:09,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:43:09 BoogieIcfgContainer [2022-11-20 11:43:09,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:43:09,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:43:09,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:43:09,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:43:09,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:43:09" (1/3) ... [2022-11-20 11:43:09,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61bce2ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:43:09, skipping insertion in model container [2022-11-20 11:43:09,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:43:09" (2/3) ... [2022-11-20 11:43:09,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61bce2ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:43:09, skipping insertion in model container [2022-11-20 11:43:09,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:43:09" (3/3) ... [2022-11-20 11:43:09,821 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-random1d-1.c [2022-11-20 11:43:09,845 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:43:09,845 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-20 11:43:09,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:43:09,942 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;@647178e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:43:09,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-20 11:43:09,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:09,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 11:43:09,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:43:09,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 11:43:09,957 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:43:09,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:09,965 INFO L85 PathProgramCache]: Analyzing trace with hash 889513677, now seen corresponding path program 1 times [2022-11-20 11:43:09,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:09,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653611573] [2022-11-20 11:43:09,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:09,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:10,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:10,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:10,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653611573] [2022-11-20 11:43:10,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653611573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:10,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:10,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:43:10,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155555154] [2022-11-20 11:43:10,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:10,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:43:10,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:10,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:43:10,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:43:10,270 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 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 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) [2022-11-20 11:43:10,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:43:10,324 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2022-11-20 11:43:10,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:43:10,327 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 [2022-11-20 11:43:10,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:43:10,335 INFO L225 Difference]: With dead ends: 41 [2022-11-20 11:43:10,336 INFO L226 Difference]: Without dead ends: 27 [2022-11-20 11:43:10,339 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 [2022-11-20 11:43:10,343 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 13 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:43:10,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 37 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:43:10,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-20 11:43:10,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2022-11-20 11:43:10,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 23 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) [2022-11-20 11:43:10,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-11-20 11:43:10,378 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 6 [2022-11-20 11:43:10,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:43:10,378 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-11-20 11:43:10,379 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) [2022-11-20 11:43:10,379 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-11-20 11:43:10,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 11:43:10,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:43:10,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:10,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:43:10,380 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:43:10,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:10,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1805120262, now seen corresponding path program 1 times [2022-11-20 11:43:10,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:10,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975621986] [2022-11-20 11:43:10,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:10,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:10,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:10,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:10,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975621986] [2022-11-20 11:43:10,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975621986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:10,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:10,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:43:10,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412045740] [2022-11-20 11:43:10,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:10,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:43:10,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:10,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:43:10,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:43:10,418 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:10,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:43:10,465 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2022-11-20 11:43:10,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:43:10,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2022-11-20 11:43:10,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:43:10,467 INFO L225 Difference]: With dead ends: 41 [2022-11-20 11:43:10,467 INFO L226 Difference]: Without dead ends: 39 [2022-11-20 11:43:10,468 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 [2022-11-20 11:43:10,469 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:43:10,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 20 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:43:10,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-20 11:43:10,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2022-11-20 11:43:10,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 36 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:10,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2022-11-20 11:43:10,477 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 7 [2022-11-20 11:43:10,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:43:10,478 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2022-11-20 11:43:10,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:10,478 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2022-11-20 11:43:10,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 11:43:10,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:43:10,479 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:10,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:43:10,480 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:43:10,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:10,481 INFO L85 PathProgramCache]: Analyzing trace with hash 124153334, now seen corresponding path program 1 times [2022-11-20 11:43:10,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:10,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815894099] [2022-11-20 11:43:10,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:10,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:10,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:10,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:10,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815894099] [2022-11-20 11:43:10,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815894099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:10,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:10,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:43:10,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955501685] [2022-11-20 11:43:10,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:10,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:43:10,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:10,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:43:10,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:43:10,557 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:10,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:43:10,586 INFO L93 Difference]: Finished difference Result 43 states and 57 transitions. [2022-11-20 11:43:10,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:43:10,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-20 11:43:10,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:43:10,595 INFO L225 Difference]: With dead ends: 43 [2022-11-20 11:43:10,596 INFO L226 Difference]: Without dead ends: 42 [2022-11-20 11:43:10,596 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 [2022-11-20 11:43:10,598 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:43:10,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 25 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:43:10,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-20 11:43:10,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2022-11-20 11:43:10,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 34 states have (on average 1.5) internal successors, (51), 39 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:10,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2022-11-20 11:43:10,621 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 8 [2022-11-20 11:43:10,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:43:10,621 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2022-11-20 11:43:10,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:10,622 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2022-11-20 11:43:10,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 11:43:10,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:43:10,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:10,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:43:10,623 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:43:10,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:10,624 INFO L85 PathProgramCache]: Analyzing trace with hash -446213880, now seen corresponding path program 1 times [2022-11-20 11:43:10,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:10,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392684763] [2022-11-20 11:43:10,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:10,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:10,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:10,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:10,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392684763] [2022-11-20 11:43:10,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392684763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:10,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:10,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:43:10,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003457759] [2022-11-20 11:43:10,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:10,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:43:10,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:10,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:43:10,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:43:10,675 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:10,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:43:10,691 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2022-11-20 11:43:10,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:43:10,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-20 11:43:10,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:43:10,692 INFO L225 Difference]: With dead ends: 40 [2022-11-20 11:43:10,693 INFO L226 Difference]: Without dead ends: 39 [2022-11-20 11:43:10,693 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 [2022-11-20 11:43:10,695 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:43:10,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:43:10,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-20 11:43:10,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-20 11:43:10,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 34 states have (on average 1.411764705882353) internal successors, (48), 38 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:10,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2022-11-20 11:43:10,703 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 9 [2022-11-20 11:43:10,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:43:10,703 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2022-11-20 11:43:10,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:10,704 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2022-11-20 11:43:10,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 11:43:10,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:43:10,705 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:10,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:43:10,705 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:43:10,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:10,706 INFO L85 PathProgramCache]: Analyzing trace with hash -233874170, now seen corresponding path program 1 times [2022-11-20 11:43:10,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:10,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554851335] [2022-11-20 11:43:10,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:10,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:10,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:10,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:10,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554851335] [2022-11-20 11:43:10,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554851335] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:43:10,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846151904] [2022-11-20 11:43:10,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:10,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:43:10,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:43:10,819 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:43:10,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:43:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:10,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:43:10,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:43:10,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:10,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:43:10,989 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:10,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846151904] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:43:10,990 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:43:10,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-20 11:43:10,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086183159] [2022-11-20 11:43:10,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:43:10,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:10,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:11,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:11,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:11,010 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:11,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:43:11,132 INFO L93 Difference]: Finished difference Result 98 states and 135 transitions. [2022-11-20 11:43:11,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:43:11,133 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 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 12 [2022-11-20 11:43:11,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:43:11,134 INFO L225 Difference]: With dead ends: 98 [2022-11-20 11:43:11,134 INFO L226 Difference]: Without dead ends: 96 [2022-11-20 11:43:11,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:11,136 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 36 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:43:11,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 41 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:43:11,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-20 11:43:11,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 79. [2022-11-20 11:43:11,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 78 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:11,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2022-11-20 11:43:11,157 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 12 [2022-11-20 11:43:11,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:43:11,157 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2022-11-20 11:43:11,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:11,158 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2022-11-20 11:43:11,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 11:43:11,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:43:11,159 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:11,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:43:11,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:43:11,360 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:43:11,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:11,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1982025395, now seen corresponding path program 1 times [2022-11-20 11:43:11,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:11,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599737429] [2022-11-20 11:43:11,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:11,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:11,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:11,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:11,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599737429] [2022-11-20 11:43:11,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599737429] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:43:11,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964524936] [2022-11-20 11:43:11,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:11,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:43:11,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:43:11,428 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:43:11,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:43:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:11,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:43:11,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:43:11,537 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:11,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:43:11,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:11,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964524936] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:43:11,608 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:43:11,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-20 11:43:11,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509181249] [2022-11-20 11:43:11,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:43:11,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:11,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:11,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:11,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:11,611 INFO L87 Difference]: Start difference. First operand 79 states and 103 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:11,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:43:11,690 INFO L93 Difference]: Finished difference Result 135 states and 186 transitions. [2022-11-20 11:43:11,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:43:11,690 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 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 13 [2022-11-20 11:43:11,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:43:11,692 INFO L225 Difference]: With dead ends: 135 [2022-11-20 11:43:11,692 INFO L226 Difference]: Without dead ends: 133 [2022-11-20 11:43:11,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:11,694 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 35 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:43:11,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 23 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:43:11,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-20 11:43:11,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 99. [2022-11-20 11:43:11,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 95 states have (on average 1.3473684210526315) internal successors, (128), 98 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:11,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 128 transitions. [2022-11-20 11:43:11,724 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 128 transitions. Word has length 13 [2022-11-20 11:43:11,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:43:11,724 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 128 transitions. [2022-11-20 11:43:11,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:11,725 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 128 transitions. [2022-11-20 11:43:11,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 11:43:11,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:43:11,726 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:11,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-20 11:43:11,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:43:11,936 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:43:11,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:11,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1414776337, now seen corresponding path program 1 times [2022-11-20 11:43:11,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:11,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713321603] [2022-11-20 11:43:11,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:11,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:11,996 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:11,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:11,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713321603] [2022-11-20 11:43:11,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713321603] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:43:11,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443479314] [2022-11-20 11:43:11,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:11,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:43:11,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:43:11,999 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:43:12,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:43:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:12,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:43:12,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:43:12,092 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:12,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:43:12,137 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:12,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443479314] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:43:12,137 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:43:12,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-20 11:43:12,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100327250] [2022-11-20 11:43:12,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:43:12,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:43:12,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:12,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:43:12,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:12,140 INFO L87 Difference]: Start difference. First operand 99 states and 128 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:12,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:43:12,205 INFO L93 Difference]: Finished difference Result 207 states and 268 transitions. [2022-11-20 11:43:12,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:43:12,205 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 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 [2022-11-20 11:43:12,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:43:12,207 INFO L225 Difference]: With dead ends: 207 [2022-11-20 11:43:12,207 INFO L226 Difference]: Without dead ends: 206 [2022-11-20 11:43:12,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:43:12,213 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 33 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:43:12,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 44 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:43:12,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-20 11:43:12,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 204. [2022-11-20 11:43:12,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 200 states have (on average 1.24) internal successors, (248), 203 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:12,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 248 transitions. [2022-11-20 11:43:12,246 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 248 transitions. Word has length 14 [2022-11-20 11:43:12,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:43:12,246 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 248 transitions. [2022-11-20 11:43:12,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:12,247 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 248 transitions. [2022-11-20 11:43:12,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-20 11:43:12,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:43:12,248 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2022-11-20 11:43:12,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:43:12,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-20 11:43:12,453 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:43:12,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:12,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1022063642, now seen corresponding path program 1 times [2022-11-20 11:43:12,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:12,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468719079] [2022-11-20 11:43:12,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:12,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:12,592 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:12,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:12,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468719079] [2022-11-20 11:43:12,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468719079] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:43:12,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280497507] [2022-11-20 11:43:12,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:12,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:43:12,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:43:12,595 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:43:12,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 11:43:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:12,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:43:12,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:43:12,696 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:12,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:43:12,762 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:12,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280497507] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:43:12,763 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:43:12,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-20 11:43:12,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680605171] [2022-11-20 11:43:12,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:43:12,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:43:12,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:12,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:43:12,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:43:12,767 INFO L87 Difference]: Start difference. First operand 204 states and 248 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:12,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:43:12,878 INFO L93 Difference]: Finished difference Result 399 states and 515 transitions. [2022-11-20 11:43:12,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 11:43:12,878 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-20 11:43:12,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:43:12,880 INFO L225 Difference]: With dead ends: 399 [2022-11-20 11:43:12,880 INFO L226 Difference]: Without dead ends: 398 [2022-11-20 11:43:12,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:43:12,886 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 41 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:43:12,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 49 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:43:12,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-11-20 11:43:12,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 330. [2022-11-20 11:43:12,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 326 states have (on average 1.2760736196319018) internal successors, (416), 329 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) [2022-11-20 11:43:12,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 416 transitions. [2022-11-20 11:43:12,944 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 416 transitions. Word has length 19 [2022-11-20 11:43:12,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:43:12,945 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 416 transitions. [2022-11-20 11:43:12,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:12,945 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 416 transitions. [2022-11-20 11:43:12,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 11:43:12,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:43:12,947 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2022-11-20 11:43:12,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:43:13,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-20 11:43:13,148 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:43:13,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:13,148 INFO L85 PathProgramCache]: Analyzing trace with hash -957667535, now seen corresponding path program 2 times [2022-11-20 11:43:13,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:13,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883445525] [2022-11-20 11:43:13,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:13,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:13,303 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:13,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:13,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883445525] [2022-11-20 11:43:13,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883445525] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:43:13,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018181784] [2022-11-20 11:43:13,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:43:13,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:43:13,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:43:13,305 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:43:13,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 11:43:13,367 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:43:13,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:43:13,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:43:13,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:43:13,423 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:13,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:43:13,545 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:13,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018181784] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:43:13,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:43:13,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-20 11:43:13,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455139836] [2022-11-20 11:43:13,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:43:13,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:43:13,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:13,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:43:13,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:43:13,548 INFO L87 Difference]: Start difference. First operand 330 states and 416 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:13,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:43:13,709 INFO L93 Difference]: Finished difference Result 871 states and 1195 transitions. [2022-11-20 11:43:13,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:43:13,710 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 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 30 [2022-11-20 11:43:13,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:43:13,713 INFO L225 Difference]: With dead ends: 871 [2022-11-20 11:43:13,713 INFO L226 Difference]: Without dead ends: 869 [2022-11-20 11:43:13,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:43:13,715 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 111 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:43:13,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 81 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:43:13,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2022-11-20 11:43:13,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 573. [2022-11-20 11:43:13,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 569 states have (on average 1.2864674868189807) internal successors, (732), 572 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:13,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 732 transitions. [2022-11-20 11:43:13,747 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 732 transitions. Word has length 30 [2022-11-20 11:43:13,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:43:13,748 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 732 transitions. [2022-11-20 11:43:13,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:13,748 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 732 transitions. [2022-11-20 11:43:13,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-20 11:43:13,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:43:13,750 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-11-20 11:43:13,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:43:13,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:43:13,956 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:43:13,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:13,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1195498150, now seen corresponding path program 2 times [2022-11-20 11:43:13,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:13,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811854870] [2022-11-20 11:43:13,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:13,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:14,041 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:14,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:14,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811854870] [2022-11-20 11:43:14,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811854870] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:43:14,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253352149] [2022-11-20 11:43:14,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:43:14,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:43:14,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:43:14,043 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:43:14,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 11:43:14,091 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:43:14,091 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:43:14,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:43:14,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:43:14,148 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:14,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:43:14,262 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:14,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253352149] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:43:14,262 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:43:14,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-20 11:43:14,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097903118] [2022-11-20 11:43:14,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:43:14,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:43:14,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:14,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:43:14,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:43:14,268 INFO L87 Difference]: Start difference. First operand 573 states and 732 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:14,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:43:14,410 INFO L93 Difference]: Finished difference Result 1650 states and 2141 transitions. [2022-11-20 11:43:14,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:43:14,411 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 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 [2022-11-20 11:43:14,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:43:14,419 INFO L225 Difference]: With dead ends: 1650 [2022-11-20 11:43:14,419 INFO L226 Difference]: Without dead ends: 1649 [2022-11-20 11:43:14,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:43:14,421 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 85 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:43:14,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 86 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:43:14,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2022-11-20 11:43:14,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1645. [2022-11-20 11:43:14,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1645 states, 1641 states have (on average 1.193784277879342) internal successors, (1959), 1644 states have internal predecessors, (1959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:14,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 1959 transitions. [2022-11-20 11:43:14,529 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 1959 transitions. Word has length 32 [2022-11-20 11:43:14,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:43:14,529 INFO L495 AbstractCegarLoop]: Abstraction has 1645 states and 1959 transitions. [2022-11-20 11:43:14,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:14,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 1959 transitions. [2022-11-20 11:43:14,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-20 11:43:14,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:43:14,539 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 1, 1, 1, 1] [2022-11-20 11:43:14,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:43:14,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:43:14,744 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:43:14,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:14,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1056880102, now seen corresponding path program 2 times [2022-11-20 11:43:14,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:14,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905306441] [2022-11-20 11:43:14,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:14,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:14,915 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:14,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:14,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905306441] [2022-11-20 11:43:14,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905306441] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:43:14,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002561654] [2022-11-20 11:43:14,916 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:43:14,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:43:14,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:43:14,918 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:43:14,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 11:43:14,967 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:43:14,968 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:43:14,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:43:14,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:43:15,059 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:15,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:43:15,219 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:15,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002561654] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:43:15,220 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:43:15,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-11-20 11:43:15,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563344250] [2022-11-20 11:43:15,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:43:15,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 11:43:15,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:15,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 11:43:15,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:43:15,223 INFO L87 Difference]: Start difference. First operand 1645 states and 1959 transitions. Second operand has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:15,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:43:15,524 INFO L93 Difference]: Finished difference Result 3431 states and 4254 transitions. [2022-11-20 11:43:15,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 11:43:15,525 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 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 43 [2022-11-20 11:43:15,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:43:15,536 INFO L225 Difference]: With dead ends: 3431 [2022-11-20 11:43:15,536 INFO L226 Difference]: Without dead ends: 3430 [2022-11-20 11:43:15,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:43:15,539 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 135 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:43:15,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 99 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:43:15,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3430 states. [2022-11-20 11:43:15,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3430 to 2080. [2022-11-20 11:43:15,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2080 states, 2076 states have (on average 1.2129094412331407) internal successors, (2518), 2079 states have internal predecessors, (2518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:15,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 2518 transitions. [2022-11-20 11:43:15,667 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 2518 transitions. Word has length 43 [2022-11-20 11:43:15,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:43:15,668 INFO L495 AbstractCegarLoop]: Abstraction has 2080 states and 2518 transitions. [2022-11-20 11:43:15,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:15,668 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 2518 transitions. [2022-11-20 11:43:15,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-20 11:43:15,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:43:15,671 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2022-11-20 11:43:15,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:43:15,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:43:15,877 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:43:15,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:15,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1254740665, now seen corresponding path program 3 times [2022-11-20 11:43:15,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:15,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462140214] [2022-11-20 11:43:15,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:15,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:16,104 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:16,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:16,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462140214] [2022-11-20 11:43:16,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462140214] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:43:16,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962689702] [2022-11-20 11:43:16,105 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 11:43:16,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:43:16,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:43:16,107 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:43:16,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 11:43:16,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-20 11:43:16,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:43:16,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 11:43:16,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:43:16,270 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:16,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:43:16,559 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:16,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962689702] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:43:16,559 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:43:16,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-20 11:43:16,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203958462] [2022-11-20 11:43:16,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:43:16,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-20 11:43:16,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:16,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-20 11:43:16,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-20 11:43:16,561 INFO L87 Difference]: Start difference. First operand 2080 states and 2518 transitions. Second operand has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 24 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:16,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:43:16,950 INFO L93 Difference]: Finished difference Result 5604 states and 7380 transitions. [2022-11-20 11:43:16,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-20 11:43:16,950 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 24 states have internal predecessors, (130), 0 states have call successors, (0), 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 66 [2022-11-20 11:43:16,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:43:16,967 INFO L225 Difference]: With dead ends: 5604 [2022-11-20 11:43:16,967 INFO L226 Difference]: Without dead ends: 5602 [2022-11-20 11:43:16,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-20 11:43:16,971 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 202 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:43:16,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 161 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:43:16,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5602 states. [2022-11-20 11:43:17,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5602 to 3121. [2022-11-20 11:43:17,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3117 states have (on average 1.232595444337504) internal successors, (3842), 3120 states have internal predecessors, (3842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:17,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 3842 transitions. [2022-11-20 11:43:17,138 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 3842 transitions. Word has length 66 [2022-11-20 11:43:17,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:43:17,139 INFO L495 AbstractCegarLoop]: Abstraction has 3121 states and 3842 transitions. [2022-11-20 11:43:17,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 24 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:17,139 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 3842 transitions. [2022-11-20 11:43:17,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-20 11:43:17,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:43:17,142 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 1, 1, 1, 1] [2022-11-20 11:43:17,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-20 11:43:17,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:43:17,348 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:43:17,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:17,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1080032752, now seen corresponding path program 3 times [2022-11-20 11:43:17,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:17,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192855028] [2022-11-20 11:43:17,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:17,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:17,634 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:17,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:17,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192855028] [2022-11-20 11:43:17,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192855028] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:43:17,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908762216] [2022-11-20 11:43:17,636 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 11:43:17,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:43:17,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:43:17,637 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:43:17,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 11:43:17,711 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-20 11:43:17,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:43:17,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 11:43:17,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:43:17,828 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:17,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:43:18,121 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:18,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908762216] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:43:18,122 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:43:18,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-20 11:43:18,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487844007] [2022-11-20 11:43:18,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:43:18,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-20 11:43:18,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:18,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-20 11:43:18,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-20 11:43:18,125 INFO L87 Difference]: Start difference. First operand 3121 states and 3842 transitions. Second operand has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:18,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:43:18,729 INFO L93 Difference]: Finished difference Result 12257 states and 15589 transitions. [2022-11-20 11:43:18,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-20 11:43:18,729 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 states have internal predecessors, (134), 0 states have call successors, (0), 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 68 [2022-11-20 11:43:18,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:43:18,758 INFO L225 Difference]: With dead ends: 12257 [2022-11-20 11:43:18,759 INFO L226 Difference]: Without dead ends: 12256 [2022-11-20 11:43:18,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-20 11:43:18,765 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 226 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:43:18,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 172 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:43:18,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12256 states. [2022-11-20 11:43:19,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12256 to 12248. [2022-11-20 11:43:19,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12248 states, 12244 states have (on average 1.1621202221496243) internal successors, (14229), 12247 states have internal predecessors, (14229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:19,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12248 states to 12248 states and 14229 transitions. [2022-11-20 11:43:19,507 INFO L78 Accepts]: Start accepts. Automaton has 12248 states and 14229 transitions. Word has length 68 [2022-11-20 11:43:19,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:43:19,508 INFO L495 AbstractCegarLoop]: Abstraction has 12248 states and 14229 transitions. [2022-11-20 11:43:19,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:19,508 INFO L276 IsEmpty]: Start isEmpty. Operand 12248 states and 14229 transitions. [2022-11-20 11:43:19,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-20 11:43:19,515 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:43:19,515 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 1, 1, 1, 1] [2022-11-20 11:43:19,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-20 11:43:19,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-20 11:43:19,721 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:43:19,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:19,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1812968066, now seen corresponding path program 3 times [2022-11-20 11:43:19,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:19,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929085912] [2022-11-20 11:43:19,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:19,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:20,093 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:20,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:20,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929085912] [2022-11-20 11:43:20,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929085912] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:43:20,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463364177] [2022-11-20 11:43:20,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 11:43:20,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:43:20,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:43:20,095 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:43:20,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-20 11:43:20,174 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-11-20 11:43:20,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:43:20,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 11:43:20,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:43:20,321 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:20,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:43:20,921 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:20,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463364177] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:43:20,921 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:43:20,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2022-11-20 11:43:20,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818766615] [2022-11-20 11:43:20,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:43:20,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-20 11:43:20,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:20,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-20 11:43:20,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-11-20 11:43:20,924 INFO L87 Difference]: Start difference. First operand 12248 states and 14229 transitions. Second operand has 32 states, 31 states have (on average 5.806451612903226) internal successors, (180), 32 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:22,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:43:22,275 INFO L93 Difference]: Finished difference Result 28887 states and 34639 transitions. [2022-11-20 11:43:22,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-20 11:43:22,276 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 5.806451612903226) internal successors, (180), 32 states have internal predecessors, (180), 0 states have call successors, (0), 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 91 [2022-11-20 11:43:22,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:43:22,354 INFO L225 Difference]: With dead ends: 28887 [2022-11-20 11:43:22,354 INFO L226 Difference]: Without dead ends: 28886 [2022-11-20 11:43:22,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-11-20 11:43:22,369 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 323 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:43:22,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 194 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:43:22,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28886 states. [2022-11-20 11:43:23,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28886 to 14083. [2022-11-20 11:43:23,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14083 states, 14079 states have (on average 1.1735208466510405) internal successors, (16522), 14082 states have internal predecessors, (16522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:23,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14083 states to 14083 states and 16522 transitions. [2022-11-20 11:43:23,516 INFO L78 Accepts]: Start accepts. Automaton has 14083 states and 16522 transitions. Word has length 91 [2022-11-20 11:43:23,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:43:23,516 INFO L495 AbstractCegarLoop]: Abstraction has 14083 states and 16522 transitions. [2022-11-20 11:43:23,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 5.806451612903226) internal successors, (180), 32 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:23,517 INFO L276 IsEmpty]: Start isEmpty. Operand 14083 states and 16522 transitions. [2022-11-20 11:43:23,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-20 11:43:23,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:43:23,544 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2022-11-20 11:43:23,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:43:23,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-20 11:43:23,750 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:43:23,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:23,751 INFO L85 PathProgramCache]: Analyzing trace with hash 924663923, now seen corresponding path program 4 times [2022-11-20 11:43:23,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:23,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382143518] [2022-11-20 11:43:23,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:23,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:24,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:24,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:24,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382143518] [2022-11-20 11:43:24,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382143518] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:43:24,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128409325] [2022-11-20 11:43:24,606 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 11:43:24,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:43:24,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:43:24,611 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:43:24,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-20 11:43:24,695 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 11:43:24,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:43:24,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-20 11:43:24,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:43:24,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:24,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:43:25,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:25,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128409325] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:43:25,879 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:43:25,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-20 11:43:25,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016860970] [2022-11-20 11:43:25,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:43:25,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-20 11:43:25,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:25,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-20 11:43:25,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-20 11:43:25,881 INFO L87 Difference]: Start difference. First operand 14083 states and 16522 transitions. Second operand has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 48 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) [2022-11-20 11:43:27,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:43:27,705 INFO L93 Difference]: Finished difference Result 40092 states and 50721 transitions. [2022-11-20 11:43:27,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-20 11:43:27,706 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 48 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) Word has length 138 [2022-11-20 11:43:27,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:43:27,786 INFO L225 Difference]: With dead ends: 40092 [2022-11-20 11:43:27,786 INFO L226 Difference]: Without dead ends: 40090 [2022-11-20 11:43:27,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-20 11:43:27,801 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 551 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:43:27,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 328 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:43:27,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40090 states. [2022-11-20 11:43:29,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40090 to 18566. [2022-11-20 11:43:29,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18566 states, 18562 states have (on average 1.1925439069065833) internal successors, (22136), 18565 states have internal predecessors, (22136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:29,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18566 states to 18566 states and 22136 transitions. [2022-11-20 11:43:29,240 INFO L78 Accepts]: Start accepts. Automaton has 18566 states and 22136 transitions. Word has length 138 [2022-11-20 11:43:29,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:43:29,240 INFO L495 AbstractCegarLoop]: Abstraction has 18566 states and 22136 transitions. [2022-11-20 11:43:29,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 48 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) [2022-11-20 11:43:29,241 INFO L276 IsEmpty]: Start isEmpty. Operand 18566 states and 22136 transitions. [2022-11-20 11:43:29,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-20 11:43:29,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:43:29,261 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 1, 1, 1, 1] [2022-11-20 11:43:29,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:43:29,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-20 11:43:29,466 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:43:29,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:29,467 INFO L85 PathProgramCache]: Analyzing trace with hash -456198628, now seen corresponding path program 4 times [2022-11-20 11:43:29,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:29,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208263988] [2022-11-20 11:43:29,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:29,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:30,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:30,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:30,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208263988] [2022-11-20 11:43:30,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208263988] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:43:30,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752414800] [2022-11-20 11:43:30,130 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 11:43:30,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:43:30,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:43:30,132 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:43:30,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-20 11:43:30,206 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 11:43:30,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:43:30,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-20 11:43:30,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:43:30,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:30,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:43:31,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:31,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752414800] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:43:31,417 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:43:31,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-20 11:43:31,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187399109] [2022-11-20 11:43:31,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:43:31,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-20 11:43:31,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:31,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-20 11:43:31,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-20 11:43:31,420 INFO L87 Difference]: Start difference. First operand 18566 states and 22136 transitions. Second operand has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:36,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:43:36,077 INFO L93 Difference]: Finished difference Result 94606 states and 118669 transitions. [2022-11-20 11:43:36,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-20 11:43:36,078 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 states have internal predecessors, (278), 0 states have call successors, (0), 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 [2022-11-20 11:43:36,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:43:36,212 INFO L225 Difference]: With dead ends: 94606 [2022-11-20 11:43:36,213 INFO L226 Difference]: Without dead ends: 94605 [2022-11-20 11:43:36,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-20 11:43:36,235 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 451 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:43:36,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 326 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:43:36,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94605 states. [2022-11-20 11:43:41,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94605 to 94589. [2022-11-20 11:43:41,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94589 states, 94585 states have (on average 1.144219485119205) internal successors, (108226), 94588 states have internal predecessors, (108226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:42,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94589 states to 94589 states and 108226 transitions. [2022-11-20 11:43:42,301 INFO L78 Accepts]: Start accepts. Automaton has 94589 states and 108226 transitions. Word has length 140 [2022-11-20 11:43:42,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:43:42,302 INFO L495 AbstractCegarLoop]: Abstraction has 94589 states and 108226 transitions. [2022-11-20 11:43:42,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:42,302 INFO L276 IsEmpty]: Start isEmpty. Operand 94589 states and 108226 transitions. [2022-11-20 11:43:42,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-20 11:43:42,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:43:42,355 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 1, 1, 1, 1] [2022-11-20 11:43:42,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-20 11:43:42,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-20 11:43:42,561 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:43:42,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:42,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1942998190, now seen corresponding path program 4 times [2022-11-20 11:43:42,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:42,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668681201] [2022-11-20 11:43:42,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:42,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:42,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:43,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:43,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:43,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668681201] [2022-11-20 11:43:43,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668681201] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:43:43,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097855376] [2022-11-20 11:43:43,872 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 11:43:43,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:43:43,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:43:43,873 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:43:43,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b37af62-b101-43a4-9691-3e45016e179d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-20 11:43:43,966 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 11:43:43,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:43:43,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 11:43:43,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:43:44,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:44,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:43:45,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:43:45,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097855376] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:43:45,888 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:43:45,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 63 [2022-11-20 11:43:45,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884552379] [2022-11-20 11:43:45,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:43:45,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-11-20 11:43:45,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:45,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-11-20 11:43:45,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2022-11-20 11:43:45,893 INFO L87 Difference]: Start difference. First operand 94589 states and 108226 transitions. Second operand has 64 states, 63 states have (on average 5.904761904761905) internal successors, (372), 64 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:57,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:43:57,157 INFO L93 Difference]: Finished difference Result 289856 states and 338922 transitions. [2022-11-20 11:43:57,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-11-20 11:43:57,159 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 5.904761904761905) internal successors, (372), 64 states have internal predecessors, (372), 0 states have call successors, (0), 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 187 [2022-11-20 11:43:57,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:43:57,629 INFO L225 Difference]: With dead ends: 289856 [2022-11-20 11:43:57,629 INFO L226 Difference]: Without dead ends: 289855 [2022-11-20 11:43:57,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2022-11-20 11:43:57,683 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 724 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 610 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 610 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:43:57,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 388 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [610 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:43:57,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289855 states.