./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark03_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark03_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36118893e72f01ac34f08ae30ac9eb83d0074096398f7228653cb15beb7a3f4b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:40:37,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:40:37,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:40:37,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:40:37,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:40:37,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:40:37,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:40:37,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:40:37,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:40:37,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:40:37,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:40:37,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:40:37,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:40:37,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:40:37,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:40:37,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:40:37,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:40:37,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:40:37,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:40:37,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:40:37,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:40:37,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:40:37,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:40:37,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:40:37,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:40:37,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:40:37,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:40:37,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:40:37,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:40:37,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:40:37,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:40:37,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:40:37,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:40:37,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:40:37,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:40:37,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:40:37,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:40:37,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:40:37,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:40:37,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:40:37,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:40:37,228 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 19:40:37,269 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:40:37,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:40:37,270 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:40:37,270 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:40:37,270 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:40:37,271 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:40:37,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:40:37,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:40:37,272 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:40:37,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:40:37,272 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:40:37,273 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:40:37,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:40:37,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:40:37,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:40:37,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:40:37,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:40:37,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:40:37,274 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 19:40:37,274 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:40:37,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:40:37,275 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:40:37,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:40:37,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:40:37,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:40:37,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:40:37,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:40:37,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:40:37,276 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:40:37,276 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:40:37,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:40:37,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:40:37,277 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:40:37,277 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:40:37,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:40:37,278 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_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36118893e72f01ac34f08ae30ac9eb83d0074096398f7228653cb15beb7a3f4b [2022-11-18 19:40:37,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:40:37,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:40:37,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:40:37,604 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:40:37,605 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:40:37,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/loop-zilu/benchmark03_linear.i [2022-11-18 19:40:37,669 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/data/faefa255c/5c401fdd4f114da08ff9089fddcec6a5/FLAGab8058346 [2022-11-18 19:40:38,180 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:40:38,180 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/sv-benchmarks/c/loop-zilu/benchmark03_linear.i [2022-11-18 19:40:38,189 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/data/faefa255c/5c401fdd4f114da08ff9089fddcec6a5/FLAGab8058346 [2022-11-18 19:40:38,553 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/data/faefa255c/5c401fdd4f114da08ff9089fddcec6a5 [2022-11-18 19:40:38,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:40:38,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:40:38,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:40:38,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:40:38,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:40:38,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:40:38" (1/1) ... [2022-11-18 19:40:38,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243fa7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:38, skipping insertion in model container [2022-11-18 19:40:38,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:40:38" (1/1) ... [2022-11-18 19:40:38,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:40:38,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:40:38,781 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/sv-benchmarks/c/loop-zilu/benchmark03_linear.i[868,881] [2022-11-18 19:40:38,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:40:38,833 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:40:38,851 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/sv-benchmarks/c/loop-zilu/benchmark03_linear.i[868,881] [2022-11-18 19:40:38,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:40:38,872 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:40:38,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:38 WrapperNode [2022-11-18 19:40:38,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:40:38,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:40:38,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:40:38,876 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:40:38,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:38" (1/1) ... [2022-11-18 19:40:38,894 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:38" (1/1) ... [2022-11-18 19:40:38,916 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2022-11-18 19:40:38,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:40:38,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:40:38,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:40:38,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:40:38,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:38" (1/1) ... [2022-11-18 19:40:38,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:38" (1/1) ... [2022-11-18 19:40:38,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:38" (1/1) ... [2022-11-18 19:40:38,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:38" (1/1) ... [2022-11-18 19:40:38,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:38" (1/1) ... [2022-11-18 19:40:38,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:38" (1/1) ... [2022-11-18 19:40:38,935 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:38" (1/1) ... [2022-11-18 19:40:38,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:38" (1/1) ... [2022-11-18 19:40:38,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:40:38,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:40:38,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:40:38,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:40:38,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:38" (1/1) ... [2022-11-18 19:40:38,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:40:38,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:38,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:40:38,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:40:39,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:40:39,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:40:39,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:40:39,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:40:39,092 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:40:39,094 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:40:39,245 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:40:39,251 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:40:39,251 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:40:39,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:40:39 BoogieIcfgContainer [2022-11-18 19:40:39,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:40:39,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:40:39,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:40:39,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:40:39,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:40:38" (1/3) ... [2022-11-18 19:40:39,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f36f073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:40:39, skipping insertion in model container [2022-11-18 19:40:39,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:38" (2/3) ... [2022-11-18 19:40:39,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f36f073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:40:39, skipping insertion in model container [2022-11-18 19:40:39,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:40:39" (3/3) ... [2022-11-18 19:40:39,271 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark03_linear.i [2022-11-18 19:40:39,290 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:40:39,291 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-18 19:40:39,366 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:40:39,376 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;@d6c0ad2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:40:39,376 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-18 19:40:39,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 20 states have (on average 1.75) internal successors, (35), 30 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:39,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 19:40:39,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:39,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 19:40:39,390 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:39,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:39,398 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2022-11-18 19:40:39,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:39,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830021516] [2022-11-18 19:40:39,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:39,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:39,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:39,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:39,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830021516] [2022-11-18 19:40:39,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830021516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:39,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:39,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:40:39,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225516365] [2022-11-18 19:40:39,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:39,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:40:39,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:39,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:40:39,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:40:39,796 INFO L87 Difference]: Start difference. First operand has 31 states, 20 states have (on average 1.75) internal successors, (35), 30 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:39,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:39,879 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-11-18 19:40:39,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:40:39,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 19:40:39,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:39,890 INFO L225 Difference]: With dead ends: 48 [2022-11-18 19:40:39,890 INFO L226 Difference]: Without dead ends: 28 [2022-11-18 19:40:39,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:40:39,896 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 10 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:39,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 81 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:40:39,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-18 19:40:39,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-18 19:40:39,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 27 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:39,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2022-11-18 19:40:39,964 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 5 [2022-11-18 19:40:39,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:39,965 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2022-11-18 19:40:39,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:39,965 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2022-11-18 19:40:39,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 19:40:39,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:39,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:39,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:40:39,968 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:39,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:39,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2022-11-18 19:40:39,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:39,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321818603] [2022-11-18 19:40:39,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:39,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:40,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:40,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:40,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321818603] [2022-11-18 19:40:40,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321818603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:40,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:40,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:40:40,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267211546] [2022-11-18 19:40:40,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:40,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:40:40,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:40,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:40:40,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:40:40,077 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-11-18 19:40:40,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:40,138 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2022-11-18 19:40:40,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:40:40,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2022-11-18 19:40:40,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:40,140 INFO L225 Difference]: With dead ends: 32 [2022-11-18 19:40:40,140 INFO L226 Difference]: Without dead ends: 30 [2022-11-18 19:40:40,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:40:40,143 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 3 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:40,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 61 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:40:40,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-18 19:40:40,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-18 19:40:40,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.55) internal successors, (31), 29 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:40,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2022-11-18 19:40:40,149 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 7 [2022-11-18 19:40:40,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:40,149 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2022-11-18 19:40:40,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-11-18 19:40:40,150 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2022-11-18 19:40:40,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 19:40:40,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:40,153 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:40,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:40:40,154 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:40,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:40,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1387005865, now seen corresponding path program 1 times [2022-11-18 19:40:40,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:40,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931454434] [2022-11-18 19:40:40,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:40,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:40,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:40,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:40,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931454434] [2022-11-18 19:40:40,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931454434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:40,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:40,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:40:40,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455953784] [2022-11-18 19:40:40,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:40,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:40,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:40,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:40,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:40:40,303 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:40,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:40,392 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2022-11-18 19:40:40,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:40,393 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 19:40:40,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:40,394 INFO L225 Difference]: With dead ends: 33 [2022-11-18 19:40:40,394 INFO L226 Difference]: Without dead ends: 32 [2022-11-18 19:40:40,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:40:40,398 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:40,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 73 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:40:40,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-18 19:40:40,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2022-11-18 19:40:40,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 30 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:40,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2022-11-18 19:40:40,412 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 9 [2022-11-18 19:40:40,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:40,412 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2022-11-18 19:40:40,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:40,413 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2022-11-18 19:40:40,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 19:40:40,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:40,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:40,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:40:40,417 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:40,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:40,422 INFO L85 PathProgramCache]: Analyzing trace with hash 47508913, now seen corresponding path program 1 times [2022-11-18 19:40:40,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:40,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510685104] [2022-11-18 19:40:40,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:40,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:40,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:40,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:40,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510685104] [2022-11-18 19:40:40,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510685104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:40,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:40,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:40:40,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566433270] [2022-11-18 19:40:40,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:40,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:40,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:40,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:40,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:40:40,586 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:40,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:40,647 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2022-11-18 19:40:40,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:40,648 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-18 19:40:40,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:40,649 INFO L225 Difference]: With dead ends: 33 [2022-11-18 19:40:40,650 INFO L226 Difference]: Without dead ends: 32 [2022-11-18 19:40:40,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:40:40,652 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 3 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:40,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 89 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:40:40,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-18 19:40:40,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-18 19:40:40,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.5) internal successors, (33), 31 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:40,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2022-11-18 19:40:40,666 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 10 [2022-11-18 19:40:40,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:40,667 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2022-11-18 19:40:40,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:40,667 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2022-11-18 19:40:40,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 19:40:40,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:40,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:40,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:40:40,669 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:40,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:40,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1472776363, now seen corresponding path program 1 times [2022-11-18 19:40:40,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:40,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510597806] [2022-11-18 19:40:40,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:40,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:40,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:40,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:40,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510597806] [2022-11-18 19:40:40,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510597806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:40,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:40,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:40:40,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347758765] [2022-11-18 19:40:40,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:40,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:40,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:40,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:40,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:40:40,833 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:40,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:40,901 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-11-18 19:40:40,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:40,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 19:40:40,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:40,903 INFO L225 Difference]: With dead ends: 35 [2022-11-18 19:40:40,903 INFO L226 Difference]: Without dead ends: 34 [2022-11-18 19:40:40,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:40:40,904 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 13 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:40,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 63 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:40:40,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-18 19:40:40,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2022-11-18 19:40:40,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 32 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:40,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2022-11-18 19:40:40,909 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 11 [2022-11-18 19:40:40,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:40,909 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2022-11-18 19:40:40,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:40,910 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2022-11-18 19:40:40,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 19:40:40,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:40,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:40,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:40:40,918 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:40,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:40,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1588572941, now seen corresponding path program 1 times [2022-11-18 19:40:40,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:40,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772560697] [2022-11-18 19:40:40,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:40,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:41,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:41,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:41,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772560697] [2022-11-18 19:40:41,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772560697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:41,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:41,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:40:41,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005459317] [2022-11-18 19:40:41,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:41,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:41,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:41,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:41,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:40:41,053 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:41,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:41,121 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2022-11-18 19:40:41,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:41,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 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 [2022-11-18 19:40:41,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:41,123 INFO L225 Difference]: With dead ends: 35 [2022-11-18 19:40:41,123 INFO L226 Difference]: Without dead ends: 34 [2022-11-18 19:40:41,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:40:41,128 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 5 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:41,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 77 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:40:41,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-18 19:40:41,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-18 19:40:41,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 33 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:41,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2022-11-18 19:40:41,146 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 12 [2022-11-18 19:40:41,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:41,147 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2022-11-18 19:40:41,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:41,147 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-11-18 19:40:41,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 19:40:41,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:41,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:41,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:40:41,148 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:41,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:41,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1905204139, now seen corresponding path program 1 times [2022-11-18 19:40:41,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:41,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091350711] [2022-11-18 19:40:41,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:41,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:41,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:41,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:41,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091350711] [2022-11-18 19:40:41,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091350711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:41,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:41,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:40:41,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439772504] [2022-11-18 19:40:41,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:41,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:40:41,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:41,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:40:41,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:40:41,257 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:41,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:41,323 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2022-11-18 19:40:41,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:40:41,324 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-18 19:40:41,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:41,324 INFO L225 Difference]: With dead ends: 55 [2022-11-18 19:40:41,324 INFO L226 Difference]: Without dead ends: 54 [2022-11-18 19:40:41,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:40:41,325 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 36 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:41,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 72 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:40:41,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-18 19:40:41,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 36. [2022-11-18 19:40:41,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 35 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:41,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2022-11-18 19:40:41,339 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 14 [2022-11-18 19:40:41,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:41,340 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2022-11-18 19:40:41,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:41,341 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2022-11-18 19:40:41,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 19:40:41,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:41,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:41,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:40:41,342 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:41,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:41,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1068213904, now seen corresponding path program 1 times [2022-11-18 19:40:41,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:41,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330995518] [2022-11-18 19:40:41,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:41,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:41,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:41,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:41,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330995518] [2022-11-18 19:40:41,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330995518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:41,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:41,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:40:41,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702546132] [2022-11-18 19:40:41,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:41,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:40:41,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:41,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:40:41,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:40:41,441 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:41,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:41,527 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2022-11-18 19:40:41,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:40:41,527 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-18 19:40:41,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:41,528 INFO L225 Difference]: With dead ends: 55 [2022-11-18 19:40:41,528 INFO L226 Difference]: Without dead ends: 54 [2022-11-18 19:40:41,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:40:41,529 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 22 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:41,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 102 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:40:41,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-18 19:40:41,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 37. [2022-11-18 19:40:41,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 36 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:41,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2022-11-18 19:40:41,537 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 15 [2022-11-18 19:40:41,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:41,537 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2022-11-18 19:40:41,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:41,538 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-11-18 19:40:41,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 19:40:41,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:41,538 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:41,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:40:41,539 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:41,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:41,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1068218998, now seen corresponding path program 1 times [2022-11-18 19:40:41,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:41,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926956452] [2022-11-18 19:40:41,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:41,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:41,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:41,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:41,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926956452] [2022-11-18 19:40:41,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926956452] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:40:41,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317429213] [2022-11-18 19:40:41,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:41,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:41,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:41,602 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:40:41,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:40:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:41,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:40:41,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:40:41,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:41,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:40:41,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:41,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317429213] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:40:41,842 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:40:41,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-18 19:40:41,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395386222] [2022-11-18 19:40:41,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:40:41,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:40:41,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:41,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:40:41,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:40:41,844 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:41,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:41,986 INFO L93 Difference]: Finished difference Result 84 states and 90 transitions. [2022-11-18 19:40:41,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:40:41,987 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-18 19:40:41,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:41,989 INFO L225 Difference]: With dead ends: 84 [2022-11-18 19:40:41,990 INFO L226 Difference]: Without dead ends: 83 [2022-11-18 19:40:41,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:40:41,994 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 89 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:41,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 109 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:40:41,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-18 19:40:42,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 63. [2022-11-18 19:40:42,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 53 states have (on average 1.6037735849056605) internal successors, (85), 62 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:42,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 85 transitions. [2022-11-18 19:40:42,011 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 85 transitions. Word has length 15 [2022-11-18 19:40:42,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:42,012 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 85 transitions. [2022-11-18 19:40:42,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:42,012 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 85 transitions. [2022-11-18 19:40:42,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:40:42,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:42,014 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:42,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:40:42,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:42,219 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:42,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:42,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1244949380, now seen corresponding path program 1 times [2022-11-18 19:40:42,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:42,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968320846] [2022-11-18 19:40:42,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:42,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:42,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:42,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:42,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968320846] [2022-11-18 19:40:42,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968320846] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:40:42,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462249249] [2022-11-18 19:40:42,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:42,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:42,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:42,285 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:40:42,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:40:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:42,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:40:42,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:40:42,401 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:42,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:40:42,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462249249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:42,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:40:42,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 19:40:42,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971690292] [2022-11-18 19:40:42,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:42,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:42,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:42,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:42,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:40:42,404 INFO L87 Difference]: Start difference. First operand 63 states and 85 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:42,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:42,473 INFO L93 Difference]: Finished difference Result 63 states and 85 transitions. [2022-11-18 19:40:42,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:42,474 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-18 19:40:42,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:42,475 INFO L225 Difference]: With dead ends: 63 [2022-11-18 19:40:42,475 INFO L226 Difference]: Without dead ends: 62 [2022-11-18 19:40:42,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:40:42,476 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 36 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:42,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 51 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:40:42,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-18 19:40:42,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-18 19:40:42,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 53 states have (on average 1.5471698113207548) internal successors, (82), 61 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:42,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 82 transitions. [2022-11-18 19:40:42,487 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 82 transitions. Word has length 16 [2022-11-18 19:40:42,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:42,487 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 82 transitions. [2022-11-18 19:40:42,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:42,488 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2022-11-18 19:40:42,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:40:42,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:42,488 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:42,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-18 19:40:42,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 19:40:42,694 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:42,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:42,695 INFO L85 PathProgramCache]: Analyzing trace with hash 61274936, now seen corresponding path program 1 times [2022-11-18 19:40:42,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:42,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143711787] [2022-11-18 19:40:42,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:42,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:42,765 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:42,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:42,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143711787] [2022-11-18 19:40:42,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143711787] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:40:42,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83480549] [2022-11-18 19:40:42,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:42,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:42,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:42,767 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:40:42,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:40:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:42,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:40:42,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:40:42,863 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:42,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:40:42,928 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:42,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83480549] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:40:42,928 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:40:42,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-18 19:40:42,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448951802] [2022-11-18 19:40:42,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:40:42,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:40:42,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:42,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:40:42,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:40:42,930 INFO L87 Difference]: Start difference. First operand 62 states and 82 transitions. Second operand has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:43,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:43,105 INFO L93 Difference]: Finished difference Result 81 states and 87 transitions. [2022-11-18 19:40:43,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:40:43,105 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 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 17 [2022-11-18 19:40:43,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:43,106 INFO L225 Difference]: With dead ends: 81 [2022-11-18 19:40:43,106 INFO L226 Difference]: Without dead ends: 80 [2022-11-18 19:40:43,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:40:43,107 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 76 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:43,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 141 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:40:43,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-18 19:40:43,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 64. [2022-11-18 19:40:43,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 55 states have (on average 1.490909090909091) internal successors, (82), 63 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:43,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 82 transitions. [2022-11-18 19:40:43,112 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 82 transitions. Word has length 17 [2022-11-18 19:40:43,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:43,119 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 82 transitions. [2022-11-18 19:40:43,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:43,119 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions. [2022-11-18 19:40:43,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-18 19:40:43,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:43,120 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:43,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-18 19:40:43,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 19:40:43,335 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:43,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:43,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1899523070, now seen corresponding path program 1 times [2022-11-18 19:40:43,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:43,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357126327] [2022-11-18 19:40:43,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:43,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:43,398 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:43,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:43,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357126327] [2022-11-18 19:40:43,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357126327] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:40:43,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464978614] [2022-11-18 19:40:43,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:43,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:43,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:43,400 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:40:43,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 19:40:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:43,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:40:43,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:40:43,504 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:43,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:40:43,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464978614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:43,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:40:43,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 19:40:43,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966288527] [2022-11-18 19:40:43,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:43,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:43,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:43,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:43,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:40:43,506 INFO L87 Difference]: Start difference. First operand 64 states and 82 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:43,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:43,542 INFO L93 Difference]: Finished difference Result 64 states and 82 transitions. [2022-11-18 19:40:43,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:43,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-18 19:40:43,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:43,543 INFO L225 Difference]: With dead ends: 64 [2022-11-18 19:40:43,543 INFO L226 Difference]: Without dead ends: 63 [2022-11-18 19:40:43,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:40:43,544 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 32 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:43,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 56 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:40:43,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-18 19:40:43,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-11-18 19:40:43,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 55 states have (on average 1.4363636363636363) internal successors, (79), 62 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:43,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 79 transitions. [2022-11-18 19:40:43,548 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 79 transitions. Word has length 18 [2022-11-18 19:40:43,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:43,548 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 79 transitions. [2022-11-18 19:40:43,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:43,549 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 79 transitions. [2022-11-18 19:40:43,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 19:40:43,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:43,549 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:43,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:40:43,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 19:40:43,754 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:43,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:43,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1244326918, now seen corresponding path program 1 times [2022-11-18 19:40:43,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:43,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878395295] [2022-11-18 19:40:43,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:43,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:43,853 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:43,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:43,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878395295] [2022-11-18 19:40:43,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878395295] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:40:43,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670658600] [2022-11-18 19:40:43,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:43,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:43,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:43,855 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:40:43,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 19:40:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:43,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:40:43,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:40:44,094 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:44,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:40:44,274 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:44,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670658600] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:40:44,274 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:40:44,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2022-11-18 19:40:44,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003095118] [2022-11-18 19:40:44,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:40:44,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 19:40:44,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:44,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 19:40:44,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2022-11-18 19:40:44,276 INFO L87 Difference]: Start difference. First operand 63 states and 79 transitions. Second operand has 23 states, 22 states have (on average 2.5) internal successors, (55), 23 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:44,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:44,592 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2022-11-18 19:40:44,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 19:40:44,593 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.5) internal successors, (55), 23 states have internal predecessors, (55), 0 states have call successors, (0), 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 [2022-11-18 19:40:44,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:44,593 INFO L225 Difference]: With dead ends: 76 [2022-11-18 19:40:44,593 INFO L226 Difference]: Without dead ends: 75 [2022-11-18 19:40:44,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=261, Invalid=795, Unknown=0, NotChecked=0, Total=1056 [2022-11-18 19:40:44,595 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 162 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:44,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 176 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:40:44,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-18 19:40:44,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 65. [2022-11-18 19:40:44,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 64 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:44,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 79 transitions. [2022-11-18 19:40:44,599 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 79 transitions. Word has length 19 [2022-11-18 19:40:44,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:44,600 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 79 transitions. [2022-11-18 19:40:44,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.5) internal successors, (55), 23 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:44,600 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 79 transitions. [2022-11-18 19:40:44,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-18 19:40:44,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:44,600 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:44,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:40:44,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 19:40:44,806 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:44,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:44,806 INFO L85 PathProgramCache]: Analyzing trace with hash 80571264, now seen corresponding path program 1 times [2022-11-18 19:40:44,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:44,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698905440] [2022-11-18 19:40:44,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:44,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:44,951 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:44,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:44,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698905440] [2022-11-18 19:40:44,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698905440] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:40:44,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462751029] [2022-11-18 19:40:44,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:44,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:44,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:44,953 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:40:44,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 19:40:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:45,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:40:45,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:40:45,208 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:45,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:40:45,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462751029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:45,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:40:45,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2022-11-18 19:40:45,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476142964] [2022-11-18 19:40:45,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:45,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 19:40:45,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:45,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 19:40:45,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:40:45,210 INFO L87 Difference]: Start difference. First operand 65 states and 79 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:45,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:45,317 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2022-11-18 19:40:45,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:40:45,318 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-18 19:40:45,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:45,318 INFO L225 Difference]: With dead ends: 65 [2022-11-18 19:40:45,318 INFO L226 Difference]: Without dead ends: 64 [2022-11-18 19:40:45,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:40:45,319 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 46 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:45,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 84 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:40:45,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-18 19:40:45,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-18 19:40:45,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 63 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:45,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 76 transitions. [2022-11-18 19:40:45,323 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 76 transitions. Word has length 20 [2022-11-18 19:40:45,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:45,324 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 76 transitions. [2022-11-18 19:40:45,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:45,324 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 76 transitions. [2022-11-18 19:40:45,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-18 19:40:45,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:45,324 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:45,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-18 19:40:45,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:45,525 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:45,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:45,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1797258052, now seen corresponding path program 1 times [2022-11-18 19:40:45,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:45,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398060024] [2022-11-18 19:40:45,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:45,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:45,619 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:45,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:45,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398060024] [2022-11-18 19:40:45,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398060024] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:40:45,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513692520] [2022-11-18 19:40:45,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:45,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:45,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:45,621 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:40:45,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 19:40:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:45,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:40:45,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:40:45,835 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:45,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:40:45,972 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:45,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513692520] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:40:45,972 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:40:45,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2022-11-18 19:40:45,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610097923] [2022-11-18 19:40:45,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:40:45,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 19:40:45,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:45,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 19:40:45,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2022-11-18 19:40:45,975 INFO L87 Difference]: Start difference. First operand 64 states and 76 transitions. Second operand has 23 states, 22 states have (on average 2.772727272727273) internal successors, (61), 23 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:46,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:46,405 INFO L93 Difference]: Finished difference Result 121 states and 138 transitions. [2022-11-18 19:40:46,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 19:40:46,405 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.772727272727273) internal successors, (61), 23 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-18 19:40:46,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:46,406 INFO L225 Difference]: With dead ends: 121 [2022-11-18 19:40:46,406 INFO L226 Difference]: Without dead ends: 120 [2022-11-18 19:40:46,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=364, Invalid=1118, Unknown=0, NotChecked=0, Total=1482 [2022-11-18 19:40:46,407 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 135 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:46,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 122 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:40:46,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-11-18 19:40:46,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 100. [2022-11-18 19:40:46,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 93 states have (on average 1.2365591397849462) internal successors, (115), 99 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:46,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2022-11-18 19:40:46,413 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 21 [2022-11-18 19:40:46,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:46,414 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2022-11-18 19:40:46,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.772727272727273) internal successors, (61), 23 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:46,414 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2022-11-18 19:40:46,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-18 19:40:46,414 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:46,415 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:46,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 19:40:46,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-18 19:40:46,621 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:46,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:46,622 INFO L85 PathProgramCache]: Analyzing trace with hash 119575298, now seen corresponding path program 1 times [2022-11-18 19:40:46,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:46,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407799715] [2022-11-18 19:40:46,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:46,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:46,746 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:46,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:46,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407799715] [2022-11-18 19:40:46,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407799715] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:40:46,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609546606] [2022-11-18 19:40:46,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:46,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:46,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:46,754 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:40:46,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 19:40:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:46,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:40:46,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:40:47,009 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:47,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:40:47,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609546606] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:47,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:40:47,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2022-11-18 19:40:47,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549087566] [2022-11-18 19:40:47,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:47,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 19:40:47,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:47,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 19:40:47,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:40:47,012 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 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) [2022-11-18 19:40:47,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:47,139 INFO L93 Difference]: Finished difference Result 100 states and 115 transitions. [2022-11-18 19:40:47,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:40:47,140 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 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 22 [2022-11-18 19:40:47,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:47,140 INFO L225 Difference]: With dead ends: 100 [2022-11-18 19:40:47,141 INFO L226 Difference]: Without dead ends: 98 [2022-11-18 19:40:47,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:40:47,142 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 48 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:47,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 68 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:40:47,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-18 19:40:47,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-11-18 19:40:47,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 93 states have (on average 1.1505376344086022) internal successors, (107), 97 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:47,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2022-11-18 19:40:47,150 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 22 [2022-11-18 19:40:47,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:47,151 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2022-11-18 19:40:47,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 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) [2022-11-18 19:40:47,151 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2022-11-18 19:40:47,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 19:40:47,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:47,153 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:47,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 19:40:47,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 19:40:47,358 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:47,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:47,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1052253532, now seen corresponding path program 1 times [2022-11-18 19:40:47,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:47,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764226218] [2022-11-18 19:40:47,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:47,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:47,388 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:47,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:47,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764226218] [2022-11-18 19:40:47,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764226218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:47,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:47,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:40:47,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506638384] [2022-11-18 19:40:47,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:47,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:47,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:47,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:47,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:47,390 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2022-11-18 19:40:47,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:47,400 INFO L93 Difference]: Finished difference Result 157 states and 173 transitions. [2022-11-18 19:40:47,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:47,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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 24 [2022-11-18 19:40:47,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:47,402 INFO L225 Difference]: With dead ends: 157 [2022-11-18 19:40:47,402 INFO L226 Difference]: Without dead ends: 120 [2022-11-18 19:40:47,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:47,403 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 4 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:47,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 49 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:40:47,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-11-18 19:40:47,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 116. [2022-11-18 19:40:47,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 111 states have (on average 1.1441441441441442) internal successors, (127), 115 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:47,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 127 transitions. [2022-11-18 19:40:47,411 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 127 transitions. Word has length 24 [2022-11-18 19:40:47,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:47,411 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 127 transitions. [2022-11-18 19:40:47,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2022-11-18 19:40:47,411 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 127 transitions. [2022-11-18 19:40:47,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 19:40:47,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:47,412 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:47,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 19:40:47,412 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:47,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:47,412 INFO L85 PathProgramCache]: Analyzing trace with hash -2046612408, now seen corresponding path program 1 times [2022-11-18 19:40:47,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:47,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242417526] [2022-11-18 19:40:47,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:47,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:47,553 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:47,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:47,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242417526] [2022-11-18 19:40:47,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242417526] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:40:47,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598664186] [2022-11-18 19:40:47,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:47,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:47,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:47,559 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:40:47,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 19:40:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:47,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 19:40:47,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:40:47,792 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:47,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:40:47,960 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:47,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598664186] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:40:47,961 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:40:47,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 27 [2022-11-18 19:40:47,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798010430] [2022-11-18 19:40:47,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:40:47,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-18 19:40:47,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:47,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-18 19:40:47,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=582, Unknown=0, NotChecked=0, Total=756 [2022-11-18 19:40:47,962 INFO L87 Difference]: Start difference. First operand 116 states and 127 transitions. Second operand has 28 states, 27 states have (on average 2.740740740740741) internal successors, (74), 28 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:48,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:48,351 INFO L93 Difference]: Finished difference Result 141 states and 151 transitions. [2022-11-18 19:40:48,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 19:40:48,351 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 2.740740740740741) internal successors, (74), 28 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-18 19:40:48,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:48,352 INFO L225 Difference]: With dead ends: 141 [2022-11-18 19:40:48,352 INFO L226 Difference]: Without dead ends: 139 [2022-11-18 19:40:48,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=435, Invalid=1205, Unknown=0, NotChecked=0, Total=1640 [2022-11-18 19:40:48,354 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 280 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:48,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 138 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:40:48,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-11-18 19:40:48,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 106. [2022-11-18 19:40:48,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 101 states have (on average 1.1287128712871286) internal successors, (114), 105 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:48,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 114 transitions. [2022-11-18 19:40:48,361 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 114 transitions. Word has length 26 [2022-11-18 19:40:48,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:48,362 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 114 transitions. [2022-11-18 19:40:48,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.740740740740741) internal successors, (74), 28 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:48,362 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 114 transitions. [2022-11-18 19:40:48,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-18 19:40:48,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:48,363 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-18 19:40:48,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 19:40:48,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-18 19:40:48,568 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:48,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:48,569 INFO L85 PathProgramCache]: Analyzing trace with hash 259934870, now seen corresponding path program 1 times [2022-11-18 19:40:48,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:48,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310943961] [2022-11-18 19:40:48,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:48,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:48,609 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-18 19:40:48,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:48,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310943961] [2022-11-18 19:40:48,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310943961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:48,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:48,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:40:48,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325843459] [2022-11-18 19:40:48,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:48,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:48,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:48,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:48,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:48,615 INFO L87 Difference]: Start difference. First operand 106 states and 114 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:48,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:48,627 INFO L93 Difference]: Finished difference Result 142 states and 146 transitions. [2022-11-18 19:40:48,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:48,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-11-18 19:40:48,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:48,629 INFO L225 Difference]: With dead ends: 142 [2022-11-18 19:40:48,629 INFO L226 Difference]: Without dead ends: 104 [2022-11-18 19:40:48,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:48,630 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 5 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:48,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 48 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:40:48,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-18 19:40:48,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 100. [2022-11-18 19:40:48,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 95 states have (on average 1.105263157894737) internal successors, (105), 99 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:48,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 105 transitions. [2022-11-18 19:40:48,638 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 105 transitions. Word has length 45 [2022-11-18 19:40:48,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:48,638 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 105 transitions. [2022-11-18 19:40:48,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:48,638 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 105 transitions. [2022-11-18 19:40:48,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-18 19:40:48,639 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:48,639 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-11-18 19:40:48,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 19:40:48,640 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:48,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:48,640 INFO L85 PathProgramCache]: Analyzing trace with hash 375204201, now seen corresponding path program 2 times [2022-11-18 19:40:48,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:48,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813766162] [2022-11-18 19:40:48,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:48,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:48,807 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:48,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:48,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813766162] [2022-11-18 19:40:48,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813766162] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:40:48,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108216087] [2022-11-18 19:40:48,808 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:40:48,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:48,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:48,809 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:40:48,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 19:40:48,880 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:40:48,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:40:48,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 19:40:48,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:40:48,966 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:48,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:40:49,148 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:49,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108216087] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:40:49,149 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:40:49,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-11-18 19:40:49,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595156641] [2022-11-18 19:40:49,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:40:49,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-18 19:40:49,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:49,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-18 19:40:49,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-11-18 19:40:49,153 INFO L87 Difference]: Start difference. First operand 100 states and 105 transitions. Second operand has 24 states, 23 states have (on average 4.086956521739131) internal successors, (94), 24 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:49,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:49,379 INFO L93 Difference]: Finished difference Result 247 states and 278 transitions. [2022-11-18 19:40:49,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-18 19:40:49,380 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.086956521739131) internal successors, (94), 24 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-11-18 19:40:49,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:49,381 INFO L225 Difference]: With dead ends: 247 [2022-11-18 19:40:49,381 INFO L226 Difference]: Without dead ends: 246 [2022-11-18 19:40:49,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 19:40:49,382 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 218 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:49,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 162 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:40:49,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-11-18 19:40:49,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 222. [2022-11-18 19:40:49,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.2165898617511521) internal successors, (264), 221 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:49,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 264 transitions. [2022-11-18 19:40:49,394 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 264 transitions. Word has length 45 [2022-11-18 19:40:49,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:49,395 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 264 transitions. [2022-11-18 19:40:49,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.086956521739131) internal successors, (94), 24 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:49,395 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 264 transitions. [2022-11-18 19:40:49,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-18 19:40:49,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:49,396 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2022-11-18 19:40:49,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 19:40:49,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:49,601 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:49,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:49,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1697772786, now seen corresponding path program 1 times [2022-11-18 19:40:49,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:49,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119716131] [2022-11-18 19:40:49,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:49,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:49,923 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:49,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:49,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119716131] [2022-11-18 19:40:49,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119716131] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:40:49,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120304924] [2022-11-18 19:40:49,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:49,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:49,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:49,925 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:40:49,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 19:40:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:49,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 19:40:49,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:40:50,426 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:50,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:40:50,855 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:50,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120304924] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:40:50,855 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:40:50,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 49 [2022-11-18 19:40:50,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469120584] [2022-11-18 19:40:50,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:40:50,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-18 19:40:50,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:50,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-18 19:40:50,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=463, Invalid=1987, Unknown=0, NotChecked=0, Total=2450 [2022-11-18 19:40:50,857 INFO L87 Difference]: Start difference. First operand 222 states and 264 transitions. Second operand has 50 states, 49 states have (on average 2.836734693877551) internal successors, (139), 50 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:52,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:52,232 INFO L93 Difference]: Finished difference Result 237 states and 264 transitions. [2022-11-18 19:40:52,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-18 19:40:52,233 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 2.836734693877551) internal successors, (139), 50 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-11-18 19:40:52,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:52,237 INFO L225 Difference]: With dead ends: 237 [2022-11-18 19:40:52,237 INFO L226 Difference]: Without dead ends: 236 [2022-11-18 19:40:52,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2288 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1486, Invalid=5320, Unknown=0, NotChecked=0, Total=6806 [2022-11-18 19:40:52,240 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 631 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:52,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 238 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:40:52,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-11-18 19:40:52,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 222. [2022-11-18 19:40:52,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.1797235023041475) internal successors, (256), 221 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:52,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 256 transitions. [2022-11-18 19:40:52,260 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 256 transitions. Word has length 47 [2022-11-18 19:40:52,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:52,261 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 256 transitions. [2022-11-18 19:40:52,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 2.836734693877551) internal successors, (139), 50 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:52,261 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 256 transitions. [2022-11-18 19:40:52,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-18 19:40:52,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:52,262 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-11-18 19:40:52,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 19:40:52,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:52,471 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:52,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:52,472 INFO L85 PathProgramCache]: Analyzing trace with hash -206014101, now seen corresponding path program 2 times [2022-11-18 19:40:52,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:52,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945143260] [2022-11-18 19:40:52,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:52,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:52,629 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:52,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:52,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945143260] [2022-11-18 19:40:52,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945143260] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:40:52,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137854084] [2022-11-18 19:40:52,630 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:40:52,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:52,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:52,631 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:40:52,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 19:40:52,696 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:40:52,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:40:52,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 19:40:52,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:40:52,808 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:52,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:40:53,019 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:53,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137854084] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:40:53,019 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:40:53,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-11-18 19:40:53,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466042512] [2022-11-18 19:40:53,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:40:53,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-18 19:40:53,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:53,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-18 19:40:53,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-11-18 19:40:53,021 INFO L87 Difference]: Start difference. First operand 222 states and 256 transitions. Second operand has 24 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 24 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:53,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:53,251 INFO L93 Difference]: Finished difference Result 242 states and 264 transitions. [2022-11-18 19:40:53,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-18 19:40:53,254 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 24 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-11-18 19:40:53,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:53,255 INFO L225 Difference]: With dead ends: 242 [2022-11-18 19:40:53,255 INFO L226 Difference]: Without dead ends: 241 [2022-11-18 19:40:53,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 19:40:53,256 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 210 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:53,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 182 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:40:53,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-11-18 19:40:53,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 226. [2022-11-18 19:40:53,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.1312217194570136) internal successors, (250), 225 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:53,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 250 transitions. [2022-11-18 19:40:53,269 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 250 transitions. Word has length 47 [2022-11-18 19:40:53,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:53,269 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 250 transitions. [2022-11-18 19:40:53,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 24 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:53,269 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 250 transitions. [2022-11-18 19:40:53,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-18 19:40:53,270 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:53,270 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-11-18 19:40:53,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-18 19:40:53,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-18 19:40:53,475 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:53,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:53,476 INFO L85 PathProgramCache]: Analyzing trace with hash -411053715, now seen corresponding path program 2 times [2022-11-18 19:40:53,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:53,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996132988] [2022-11-18 19:40:53,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:53,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:53,759 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:53,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:53,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996132988] [2022-11-18 19:40:53,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996132988] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:40:53,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441408807] [2022-11-18 19:40:53,760 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:40:53,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:53,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:53,763 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:40:53,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 19:40:53,828 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:40:53,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:40:53,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 19:40:53,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:40:54,302 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:54,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:40:54,748 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:54,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441408807] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:40:54,748 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:40:54,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 49 [2022-11-18 19:40:54,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183291889] [2022-11-18 19:40:54,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:40:54,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-18 19:40:54,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:54,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-18 19:40:54,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=422, Invalid=2028, Unknown=0, NotChecked=0, Total=2450 [2022-11-18 19:40:54,751 INFO L87 Difference]: Start difference. First operand 226 states and 250 transitions. Second operand has 50 states, 49 states have (on average 2.9591836734693877) internal successors, (145), 50 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:55,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:55,581 INFO L93 Difference]: Finished difference Result 239 states and 256 transitions. [2022-11-18 19:40:55,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-18 19:40:55,581 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 2.9591836734693877) internal successors, (145), 50 states have internal predecessors, (145), 0 states have call successors, (0), 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 49 [2022-11-18 19:40:55,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:55,582 INFO L225 Difference]: With dead ends: 239 [2022-11-18 19:40:55,582 INFO L226 Difference]: Without dead ends: 238 [2022-11-18 19:40:55,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1685 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=985, Invalid=3845, Unknown=0, NotChecked=0, Total=4830 [2022-11-18 19:40:55,585 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 632 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:55,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 373 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:40:55,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-11-18 19:40:55,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 230. [2022-11-18 19:40:55,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.0844444444444445) internal successors, (244), 229 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:55,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 244 transitions. [2022-11-18 19:40:55,598 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 244 transitions. Word has length 49 [2022-11-18 19:40:55,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:55,599 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 244 transitions. [2022-11-18 19:40:55,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 2.9591836734693877) internal successors, (145), 50 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:55,599 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 244 transitions. [2022-11-18 19:40:55,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-18 19:40:55,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:55,600 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1] [2022-11-18 19:40:55,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-18 19:40:55,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:55,815 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:55,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:55,816 INFO L85 PathProgramCache]: Analyzing trace with hash 814251694, now seen corresponding path program 2 times [2022-11-18 19:40:55,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:55,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561861916] [2022-11-18 19:40:55,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:55,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:56,156 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:56,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:56,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561861916] [2022-11-18 19:40:56,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561861916] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:40:56,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457807259] [2022-11-18 19:40:56,156 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:40:56,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:56,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:56,159 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:40:56,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-18 19:40:56,223 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:40:56,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:40:56,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 19:40:56,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:40:56,667 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:56,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:40:57,108 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:57,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457807259] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:40:57,109 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:40:57,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 51 [2022-11-18 19:40:57,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75284447] [2022-11-18 19:40:57,109 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:40:57,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-11-18 19:40:57,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:57,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-11-18 19:40:57,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=2150, Unknown=0, NotChecked=0, Total=2652 [2022-11-18 19:40:57,112 INFO L87 Difference]: Start difference. First operand 230 states and 244 transitions. Second operand has 52 states, 51 states have (on average 2.8627450980392157) internal successors, (146), 52 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:58,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:58,174 INFO L93 Difference]: Finished difference Result 232 states and 244 transitions. [2022-11-18 19:40:58,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-18 19:40:58,175 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 2.8627450980392157) internal successors, (146), 52 states have internal predecessors, (146), 0 states have call successors, (0), 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 50 [2022-11-18 19:40:58,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:58,177 INFO L225 Difference]: With dead ends: 232 [2022-11-18 19:40:58,177 INFO L226 Difference]: Without dead ends: 231 [2022-11-18 19:40:58,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2161 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1431, Invalid=4731, Unknown=0, NotChecked=0, Total=6162 [2022-11-18 19:40:58,180 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 615 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:58,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 275 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:40:58,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-11-18 19:40:58,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 230. [2022-11-18 19:40:58,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.0666666666666667) internal successors, (240), 229 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:58,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 240 transitions. [2022-11-18 19:40:58,203 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 240 transitions. Word has length 50 [2022-11-18 19:40:58,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:58,203 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 240 transitions. [2022-11-18 19:40:58,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 2.8627450980392157) internal successors, (146), 52 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:58,204 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 240 transitions. [2022-11-18 19:40:58,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-18 19:40:58,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:58,205 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 1, 1, 1, 1] [2022-11-18 19:40:58,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-18 19:40:58,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-18 19:40:58,411 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:40:58,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:58,412 INFO L85 PathProgramCache]: Analyzing trace with hash -906852813, now seen corresponding path program 2 times [2022-11-18 19:40:58,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:58,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199710895] [2022-11-18 19:40:58,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:58,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:59,178 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:59,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:59,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199710895] [2022-11-18 19:40:59,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199710895] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:40:59,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006324016] [2022-11-18 19:40:59,178 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:40:59,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:40:59,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:59,183 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:40:59,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-18 19:40:59,279 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:40:59,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:40:59,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-18 19:40:59,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:00,323 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:00,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:41:01,315 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:01,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006324016] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:41:01,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:41:01,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 85 [2022-11-18 19:41:01,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214148297] [2022-11-18 19:41:01,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:41:01,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-11-18 19:41:01,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:01,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-11-18 19:41:01,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1096, Invalid=6214, Unknown=0, NotChecked=0, Total=7310 [2022-11-18 19:41:01,319 INFO L87 Difference]: Start difference. First operand 230 states and 240 transitions. Second operand has 86 states, 85 states have (on average 3.1882352941176473) internal successors, (271), 86 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:05,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:05,638 INFO L93 Difference]: Finished difference Result 341 states and 355 transitions. [2022-11-18 19:41:05,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-11-18 19:41:05,638 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 85 states have (on average 3.1882352941176473) internal successors, (271), 86 states have internal predecessors, (271), 0 states have call successors, (0), 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 [2022-11-18 19:41:05,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:05,640 INFO L225 Difference]: With dead ends: 341 [2022-11-18 19:41:05,640 INFO L226 Difference]: Without dead ends: 340 [2022-11-18 19:41:05,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8191 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=4629, Invalid=18627, Unknown=0, NotChecked=0, Total=23256 [2022-11-18 19:41:05,645 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 924 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:05,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 597 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 19:41:05,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-11-18 19:41:05,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 312. [2022-11-18 19:41:05,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 307 states have (on average 1.1237785016286646) internal successors, (345), 311 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:05,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 345 transitions. [2022-11-18 19:41:05,663 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 345 transitions. Word has length 91 [2022-11-18 19:41:05,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:05,663 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 345 transitions. [2022-11-18 19:41:05,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 85 states have (on average 3.1882352941176473) internal successors, (271), 86 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:05,664 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 345 transitions. [2022-11-18 19:41:05,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-18 19:41:05,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:05,665 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1] [2022-11-18 19:41:05,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-11-18 19:41:05,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-18 19:41:05,870 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:41:05,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:05,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1183409754, now seen corresponding path program 2 times [2022-11-18 19:41:05,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:05,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891585434] [2022-11-18 19:41:05,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:05,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:06,761 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:06,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:06,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891585434] [2022-11-18 19:41:06,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891585434] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:41:06,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205673381] [2022-11-18 19:41:06,762 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:41:06,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:06,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:06,764 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:41:06,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-18 19:41:06,847 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:41:06,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:41:06,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-18 19:41:06,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:08,050 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:08,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:41:09,216 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:09,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205673381] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:41:09,217 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:41:09,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 97 [2022-11-18 19:41:09,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182456804] [2022-11-18 19:41:09,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:41:09,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-11-18 19:41:09,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:09,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-11-18 19:41:09,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1543, Invalid=7963, Unknown=0, NotChecked=0, Total=9506 [2022-11-18 19:41:09,221 INFO L87 Difference]: Start difference. First operand 312 states and 345 transitions. Second operand has 98 states, 97 states have (on average 2.917525773195876) internal successors, (283), 98 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:13,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:13,976 INFO L93 Difference]: Finished difference Result 410 states and 433 transitions. [2022-11-18 19:41:13,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-18 19:41:13,977 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 2.917525773195876) internal successors, (283), 98 states have internal predecessors, (283), 0 states have call successors, (0), 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 95 [2022-11-18 19:41:13,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:13,979 INFO L225 Difference]: With dead ends: 410 [2022-11-18 19:41:13,979 INFO L226 Difference]: Without dead ends: 409 [2022-11-18 19:41:13,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10162 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=5503, Invalid=22219, Unknown=0, NotChecked=0, Total=27722 [2022-11-18 19:41:13,982 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 1662 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 488 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 488 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:13,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1662 Valid, 507 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [488 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 19:41:13,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-11-18 19:41:13,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 374. [2022-11-18 19:41:14,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 369 states have (on average 1.151761517615176) internal successors, (425), 373 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:14,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 425 transitions. [2022-11-18 19:41:14,002 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 425 transitions. Word has length 95 [2022-11-18 19:41:14,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:14,002 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 425 transitions. [2022-11-18 19:41:14,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 2.917525773195876) internal successors, (283), 98 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:14,003 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 425 transitions. [2022-11-18 19:41:14,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-18 19:41:14,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:14,004 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 1, 1, 1, 1] [2022-11-18 19:41:14,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-18 19:41:14,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-18 19:41:14,209 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:41:14,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:14,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1868354182, now seen corresponding path program 3 times [2022-11-18 19:41:14,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:14,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077876612] [2022-11-18 19:41:14,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:14,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:14,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:15,102 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 0 proven. 329 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:15,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:15,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077876612] [2022-11-18 19:41:15,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077876612] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:41:15,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828253002] [2022-11-18 19:41:15,103 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:41:15,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:15,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:15,111 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:41:15,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-18 19:41:15,216 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-18 19:41:15,216 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:41:15,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-18 19:41:15,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:16,426 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 0 proven. 329 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:16,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:41:17,681 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 0 proven. 329 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:17,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828253002] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:41:17,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:41:17,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 99 [2022-11-18 19:41:17,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412664438] [2022-11-18 19:41:17,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:41:17,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-11-18 19:41:17,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:17,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-11-18 19:41:17,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1614, Invalid=8286, Unknown=0, NotChecked=0, Total=9900 [2022-11-18 19:41:17,685 INFO L87 Difference]: Start difference. First operand 374 states and 425 transitions. Second operand has 100 states, 99 states have (on average 2.9292929292929295) internal successors, (290), 100 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:22,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:22,633 INFO L93 Difference]: Finished difference Result 414 states and 429 transitions. [2022-11-18 19:41:22,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-11-18 19:41:22,634 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 99 states have (on average 2.9292929292929295) internal successors, (290), 100 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-11-18 19:41:22,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:22,635 INFO L225 Difference]: With dead ends: 414 [2022-11-18 19:41:22,635 INFO L226 Difference]: Without dead ends: 413 [2022-11-18 19:41:22,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10706 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=6071, Invalid=22659, Unknown=0, NotChecked=0, Total=28730 [2022-11-18 19:41:22,638 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1949 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1949 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 543 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:22,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1949 Valid, 513 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [543 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 19:41:22,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-11-18 19:41:22,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 377. [2022-11-18 19:41:22,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 372 states have (on average 1.131720430107527) internal successors, (421), 376 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:22,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 421 transitions. [2022-11-18 19:41:22,656 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 421 transitions. Word has length 98 [2022-11-18 19:41:22,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:22,656 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 421 transitions. [2022-11-18 19:41:22,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 99 states have (on average 2.9292929292929295) internal successors, (290), 100 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:22,657 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 421 transitions. [2022-11-18 19:41:22,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-18 19:41:22,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:22,658 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2022-11-18 19:41:22,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-18 19:41:22,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-18 19:41:22,858 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:41:22,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:22,859 INFO L85 PathProgramCache]: Analyzing trace with hash 404747663, now seen corresponding path program 3 times [2022-11-18 19:41:22,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:22,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406609156] [2022-11-18 19:41:22,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:22,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:23,350 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 0 proven. 470 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:23,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:23,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406609156] [2022-11-18 19:41:23,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406609156] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:41:23,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795606910] [2022-11-18 19:41:23,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:41:23,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:23,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:23,352 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:41:23,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-18 19:41:23,414 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-18 19:41:23,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:41:23,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 19:41:23,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:23,638 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 233 proven. 45 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-11-18 19:41:23,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:41:24,018 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 233 proven. 45 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-11-18 19:41:24,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795606910] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:41:24,018 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:41:24,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 10, 10] total 41 [2022-11-18 19:41:24,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787296894] [2022-11-18 19:41:24,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:41:24,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-11-18 19:41:24,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:24,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-11-18 19:41:24,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=1391, Unknown=0, NotChecked=0, Total=1722 [2022-11-18 19:41:24,020 INFO L87 Difference]: Start difference. First operand 377 states and 421 transitions. Second operand has 42 states, 41 states have (on average 4.609756097560975) internal successors, (189), 42 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:25,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:25,454 INFO L93 Difference]: Finished difference Result 379 states and 421 transitions. [2022-11-18 19:41:25,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-18 19:41:25,454 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 4.609756097560975) internal successors, (189), 42 states have internal predecessors, (189), 0 states have call successors, (0), 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 105 [2022-11-18 19:41:25,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:25,456 INFO L225 Difference]: With dead ends: 379 [2022-11-18 19:41:25,456 INFO L226 Difference]: Without dead ends: 378 [2022-11-18 19:41:25,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1359 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1697, Invalid=4783, Unknown=0, NotChecked=0, Total=6480 [2022-11-18 19:41:25,458 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 680 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:25,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 190 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:41:25,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-11-18 19:41:25,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 376. [2022-11-18 19:41:25,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 372 states have (on average 1.0913978494623655) internal successors, (406), 375 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:25,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 406 transitions. [2022-11-18 19:41:25,481 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 406 transitions. Word has length 105 [2022-11-18 19:41:25,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:25,482 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 406 transitions. [2022-11-18 19:41:25,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 4.609756097560975) internal successors, (189), 42 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:25,482 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 406 transitions. [2022-11-18 19:41:25,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-18 19:41:25,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:25,483 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2022-11-18 19:41:25,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-11-18 19:41:25,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-18 19:41:25,689 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:41:25,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:25,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1879518191, now seen corresponding path program 3 times [2022-11-18 19:41:25,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:25,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422653909] [2022-11-18 19:41:25,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:25,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:26,185 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 490 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:26,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:26,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422653909] [2022-11-18 19:41:26,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422653909] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:41:26,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344985908] [2022-11-18 19:41:26,186 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:41:26,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:26,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:26,187 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:41:26,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-18 19:41:26,273 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-18 19:41:26,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:41:26,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 19:41:26,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:26,524 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 241 proven. 45 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-11-18 19:41:26,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:41:26,906 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 241 proven. 45 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-11-18 19:41:26,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344985908] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:41:26,906 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:41:26,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 10, 10] total 41 [2022-11-18 19:41:26,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092596787] [2022-11-18 19:41:26,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:41:26,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-11-18 19:41:26,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:26,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-11-18 19:41:26,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=1391, Unknown=0, NotChecked=0, Total=1722 [2022-11-18 19:41:26,909 INFO L87 Difference]: Start difference. First operand 376 states and 406 transitions. Second operand has 42 states, 41 states have (on average 4.658536585365853) internal successors, (191), 42 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:28,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:28,487 INFO L93 Difference]: Finished difference Result 377 states and 406 transitions. [2022-11-18 19:41:28,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-18 19:41:28,487 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 4.658536585365853) internal successors, (191), 42 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2022-11-18 19:41:28,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:28,489 INFO L225 Difference]: With dead ends: 377 [2022-11-18 19:41:28,489 INFO L226 Difference]: Without dead ends: 376 [2022-11-18 19:41:28,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1356 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1699, Invalid=4781, Unknown=0, NotChecked=0, Total=6480 [2022-11-18 19:41:28,491 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 569 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:28,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 128 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:41:28,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-11-18 19:41:28,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 375. [2022-11-18 19:41:28,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 372 states have (on average 1.0510752688172043) internal successors, (391), 374 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:28,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 391 transitions. [2022-11-18 19:41:28,516 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 391 transitions. Word has length 107 [2022-11-18 19:41:28,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:28,516 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 391 transitions. [2022-11-18 19:41:28,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 4.658536585365853) internal successors, (191), 42 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:28,516 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 391 transitions. [2022-11-18 19:41:28,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-18 19:41:28,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:28,518 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2022-11-18 19:41:28,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-18 19:41:28,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-18 19:41:28,731 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:41:28,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:28,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1964251795, now seen corresponding path program 3 times [2022-11-18 19:41:28,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:28,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441916293] [2022-11-18 19:41:28,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:28,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:29,633 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:29,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:29,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441916293] [2022-11-18 19:41:29,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441916293] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:41:29,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840940248] [2022-11-18 19:41:29,634 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:41:29,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:29,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:29,636 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:41:29,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-18 19:41:29,772 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-18 19:41:29,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:41:29,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-18 19:41:29,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:31,088 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:31,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:41:32,533 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:32,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840940248] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:41:32,533 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:41:32,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 103 [2022-11-18 19:41:32,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405310340] [2022-11-18 19:41:32,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:41:32,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-11-18 19:41:32,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:32,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-11-18 19:41:32,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1547, Invalid=9165, Unknown=0, NotChecked=0, Total=10712 [2022-11-18 19:41:32,537 INFO L87 Difference]: Start difference. First operand 375 states and 391 transitions. Second operand has 104 states, 103 states have (on average 3.1553398058252426) internal successors, (325), 104 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:35,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:35,954 INFO L93 Difference]: Finished difference Result 505 states and 534 transitions. [2022-11-18 19:41:35,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-11-18 19:41:35,955 INFO L78 Accepts]: Start accepts. Automaton has has 104 states, 103 states have (on average 3.1553398058252426) internal successors, (325), 104 states have internal predecessors, (325), 0 states have call successors, (0), 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 109 [2022-11-18 19:41:35,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:35,958 INFO L225 Difference]: With dead ends: 505 [2022-11-18 19:41:35,958 INFO L226 Difference]: Without dead ends: 504 [2022-11-18 19:41:35,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8162 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=4093, Invalid=17663, Unknown=0, NotChecked=0, Total=21756 [2022-11-18 19:41:35,960 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1869 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1869 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:35,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1869 Valid, 592 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 19:41:35,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2022-11-18 19:41:35,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 492. [2022-11-18 19:41:35,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 489 states have (on average 1.0429447852760736) internal successors, (510), 491 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:35,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 510 transitions. [2022-11-18 19:41:35,987 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 510 transitions. Word has length 109 [2022-11-18 19:41:35,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:35,988 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 510 transitions. [2022-11-18 19:41:35,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 103 states have (on average 3.1553398058252426) internal successors, (325), 104 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:41:35,988 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 510 transitions. [2022-11-18 19:41:35,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-11-18 19:41:35,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:35,991 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 1, 1, 1, 1] [2022-11-18 19:41:35,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-18 19:41:36,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:36,197 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:41:36,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:36,197 INFO L85 PathProgramCache]: Analyzing trace with hash -678905074, now seen corresponding path program 3 times [2022-11-18 19:41:36,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:36,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519727298] [2022-11-18 19:41:36,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:36,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:38,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1380 backedges. 0 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:38,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:38,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519727298] [2022-11-18 19:41:38,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519727298] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:41:38,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013777595] [2022-11-18 19:41:38,884 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:41:38,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:38,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:38,886 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:41:38,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-18 19:41:39,150 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2022-11-18 19:41:39,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:41:39,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 65 conjunts are in the unsatisfiable core [2022-11-18 19:41:39,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:42,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1380 backedges. 0 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:42,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:41:46,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1380 backedges. 0 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:46,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013777595] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:41:46,709 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:41:46,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 193 [2022-11-18 19:41:46,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969533803] [2022-11-18 19:41:46,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:41:46,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2022-11-18 19:41:46,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:46,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2022-11-18 19:41:46,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5527, Invalid=31915, Unknown=0, NotChecked=0, Total=37442 [2022-11-18 19:41:46,714 INFO L87 Difference]: Start difference. First operand 492 states and 510 transitions. Second operand has 194 states, 193 states have (on average 2.9585492227979273) internal successors, (571), 194 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:42:04,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:42:04,878 INFO L93 Difference]: Finished difference Result 730 states and 771 transitions. [2022-11-18 19:42:04,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2022-11-18 19:42:04,879 INFO L78 Accepts]: Start accepts. Automaton has has 194 states, 193 states have (on average 2.9585492227979273) internal successors, (571), 194 states have internal predecessors, (571), 0 states have call successors, (0), 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 191 [2022-11-18 19:42:04,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:42:04,882 INFO L225 Difference]: With dead ends: 730 [2022-11-18 19:42:04,882 INFO L226 Difference]: Without dead ends: 729 [2022-11-18 19:42:04,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 316 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39209 ImplicationChecksByTransitivity, 24.0s TimeCoverageRelationStatistics Valid=19568, Invalid=81238, Unknown=0, NotChecked=0, Total=100806 [2022-11-18 19:42:04,889 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 5274 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 1563 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5274 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 2648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1563 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:42:04,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5274 Valid, 842 Invalid, 2648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1563 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-18 19:42:04,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2022-11-18 19:42:04,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 704. [2022-11-18 19:42:04,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 701 states have (on average 1.0570613409415122) internal successors, (741), 703 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:42:04,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 741 transitions. [2022-11-18 19:42:04,932 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 741 transitions. Word has length 191 [2022-11-18 19:42:04,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:42:04,933 INFO L495 AbstractCegarLoop]: Abstraction has 704 states and 741 transitions. [2022-11-18 19:42:04,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 194 states, 193 states have (on average 2.9585492227979273) internal successors, (571), 194 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:42:04,933 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 741 transitions. [2022-11-18 19:42:04,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-18 19:42:04,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:42:04,936 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 1, 1, 1, 1] [2022-11-18 19:42:04,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-18 19:42:05,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:42:05,142 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:42:05,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:05,143 INFO L85 PathProgramCache]: Analyzing trace with hash -260001006, now seen corresponding path program 4 times [2022-11-18 19:42:05,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:05,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868223597] [2022-11-18 19:42:05,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:05,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:08,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1425 backedges. 0 proven. 1425 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:42:08,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:08,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868223597] [2022-11-18 19:42:08,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868223597] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:42:08,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585012518] [2022-11-18 19:42:08,070 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 19:42:08,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:42:08,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:42:08,071 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:42:08,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-18 19:42:08,174 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 19:42:08,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:42:08,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 66 conjunts are in the unsatisfiable core [2022-11-18 19:42:08,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:42:11,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1425 backedges. 0 proven. 1425 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:42:11,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:42:15,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1425 backedges. 0 proven. 1425 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:42:15,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585012518] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:42:15,956 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:42:15,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66, 66] total 195 [2022-11-18 19:42:15,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330120834] [2022-11-18 19:42:15,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:42:15,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 196 states [2022-11-18 19:42:15,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:15,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2022-11-18 19:42:15,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5662, Invalid=32558, Unknown=0, NotChecked=0, Total=38220 [2022-11-18 19:42:15,964 INFO L87 Difference]: Start difference. First operand 704 states and 741 transitions. Second operand has 196 states, 195 states have (on average 2.9641025641025642) internal successors, (578), 196 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:42:35,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:42:35,255 INFO L93 Difference]: Finished difference Result 740 states and 758 transitions. [2022-11-18 19:42:35,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2022-11-18 19:42:35,256 INFO L78 Accepts]: Start accepts. Automaton has has 196 states, 195 states have (on average 2.9641025641025642) internal successors, (578), 196 states have internal predecessors, (578), 0 states have call successors, (0), 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 194 [2022-11-18 19:42:35,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:42:35,259 INFO L225 Difference]: With dead ends: 740 [2022-11-18 19:42:35,259 INFO L226 Difference]: Without dead ends: 739 [2022-11-18 19:42:35,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 317 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39987 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=21187, Invalid=80255, Unknown=0, NotChecked=0, Total=101442 [2022-11-18 19:42:35,264 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 5956 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 1680 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5956 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 2805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1680 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:42:35,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5956 Valid, 907 Invalid, 2805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1680 Valid, 1125 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-18 19:42:35,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2022-11-18 19:42:35,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 707. [2022-11-18 19:42:35,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 704 states have (on average 1.0355113636363635) internal successors, (729), 706 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:42:35,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 729 transitions. [2022-11-18 19:42:35,308 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 729 transitions. Word has length 194 [2022-11-18 19:42:35,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:42:35,309 INFO L495 AbstractCegarLoop]: Abstraction has 707 states and 729 transitions. [2022-11-18 19:42:35,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 196 states, 195 states have (on average 2.9641025641025642) internal successors, (578), 196 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:42:35,309 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 729 transitions. [2022-11-18 19:42:35,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-11-18 19:42:35,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:42:35,313 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2022-11-18 19:42:35,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-18 19:42:35,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-11-18 19:42:35,523 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:42:35,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:35,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1762318881, now seen corresponding path program 4 times [2022-11-18 19:42:35,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:35,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836618963] [2022-11-18 19:42:35,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:35,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:38,829 INFO L134 CoverageAnalysis]: Checked inductivity of 2442 backedges. 0 proven. 2442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:42:38,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:38,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836618963] [2022-11-18 19:42:38,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836618963] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:42:38,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057514973] [2022-11-18 19:42:38,830 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 19:42:38,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:42:38,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:42:38,831 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:42:38,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-18 19:42:38,956 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 19:42:38,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:42:38,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-18 19:42:38,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:42:43,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2442 backedges. 0 proven. 2442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:42:43,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:42:48,388 INFO L134 CoverageAnalysis]: Checked inductivity of 2442 backedges. 0 proven. 2442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:42:48,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057514973] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:42:48,388 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:42:48,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71, 71] total 211 [2022-11-18 19:42:48,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163706674] [2022-11-18 19:42:48,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:42:48,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 212 states [2022-11-18 19:42:48,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:48,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 212 interpolants. [2022-11-18 19:42:48,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5849, Invalid=38883, Unknown=0, NotChecked=0, Total=44732 [2022-11-18 19:42:48,419 INFO L87 Difference]: Start difference. First operand 707 states and 729 transitions. Second operand has 212 states, 211 states have (on average 3.2464454976303316) internal successors, (685), 212 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:43:06,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:43:06,948 INFO L93 Difference]: Finished difference Result 1049 states and 1112 transitions. [2022-11-18 19:43:06,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-11-18 19:43:06,949 INFO L78 Accepts]: Start accepts. Automaton has has 212 states, 211 states have (on average 3.2464454976303316) internal successors, (685), 212 states have internal predecessors, (685), 0 states have call successors, (0), 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 229 [2022-11-18 19:43:06,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:43:06,953 INFO L225 Difference]: With dead ends: 1049 [2022-11-18 19:43:06,953 INFO L226 Difference]: Without dead ends: 1048 [2022-11-18 19:43:06,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 619 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 302 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35696 ImplicationChecksByTransitivity, 26.7s TimeCoverageRelationStatistics Valid=16681, Invalid=75431, Unknown=0, NotChecked=0, Total=92112 [2022-11-18 19:43:06,958 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 6995 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 1186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6995 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1186 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:43:06,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6995 Valid, 1369 Invalid, 2068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1186 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-18 19:43:06,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2022-11-18 19:43:07,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 1020. [2022-11-18 19:43:07,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 1017 states have (on average 1.0462143559488692) internal successors, (1064), 1019 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:43:07,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1064 transitions. [2022-11-18 19:43:07,020 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1064 transitions. Word has length 229 [2022-11-18 19:43:07,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:43:07,021 INFO L495 AbstractCegarLoop]: Abstraction has 1020 states and 1064 transitions. [2022-11-18 19:43:07,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 212 states, 211 states have (on average 3.2464454976303316) internal successors, (685), 212 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:43:07,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1064 transitions. [2022-11-18 19:43:07,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-11-18 19:43:07,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:43:07,028 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 32, 32, 32, 1, 1, 1, 1] [2022-11-18 19:43:07,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-11-18 19:43:07,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:43:07,233 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:43:07,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:07,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1230643509, now seen corresponding path program 3 times [2022-11-18 19:43:07,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:07,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668379279] [2022-11-18 19:43:07,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:07,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:13,780 INFO L134 CoverageAnalysis]: Checked inductivity of 5216 backedges. 0 proven. 5216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:43:13,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:43:13,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668379279] [2022-11-18 19:43:13,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668379279] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:43:13,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463627787] [2022-11-18 19:43:13,781 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:43:13,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:43:13,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:13,782 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:43:13,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-18 19:43:14,103 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 33 check-sat command(s) [2022-11-18 19:43:14,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:43:14,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 101 conjunts are in the unsatisfiable core [2022-11-18 19:43:14,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:43:22,247 INFO L134 CoverageAnalysis]: Checked inductivity of 5216 backedges. 0 proven. 5216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:43:22,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:43:32,363 INFO L134 CoverageAnalysis]: Checked inductivity of 5216 backedges. 0 proven. 5216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:43:32,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463627787] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:43:32,363 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:43:32,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 101, 101] total 301 [2022-11-18 19:43:32,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604969616] [2022-11-18 19:43:32,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:43:32,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 302 states [2022-11-18 19:43:32,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:43:32,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 302 interpolants. [2022-11-18 19:43:32,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11524, Invalid=79378, Unknown=0, NotChecked=0, Total=90902 [2022-11-18 19:43:32,375 INFO L87 Difference]: Start difference. First operand 1020 states and 1064 transitions. Second operand has 302 states, 301 states have (on average 3.292358803986711) internal successors, (991), 302 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:44:44,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:44:44,956 INFO L93 Difference]: Finished difference Result 1247 states and 1307 transitions. [2022-11-18 19:44:44,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 287 states. [2022-11-18 19:44:44,957 INFO L78 Accepts]: Start accepts. Automaton has has 302 states, 301 states have (on average 3.292358803986711) internal successors, (991), 302 states have internal predecessors, (991), 0 states have call successors, (0), 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 331 [2022-11-18 19:44:44,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:44:44,961 INFO L225 Difference]: With dead ends: 1247 [2022-11-18 19:44:44,961 INFO L226 Difference]: Without dead ends: 1246 [2022-11-18 19:44:44,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 978 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 517 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102703 ImplicationChecksByTransitivity, 87.1s TimeCoverageRelationStatistics Valid=53463, Invalid=215379, Unknown=0, NotChecked=0, Total=268842 [2022-11-18 19:44:44,978 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 7659 mSDsluCounter, 1785 mSDsCounter, 0 mSdLazyCounter, 2346 mSolverCounterSat, 2157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7659 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 4503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2157 IncrementalHoareTripleChecker+Valid, 2346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:44:44,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7659 Valid, 1794 Invalid, 4503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2157 Valid, 2346 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-18 19:44:44,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2022-11-18 19:44:45,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1222. [2022-11-18 19:44:45,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 1219 states have (on average 1.044298605414274) internal successors, (1273), 1221 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:44:45,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1273 transitions. [2022-11-18 19:44:45,056 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1273 transitions. Word has length 331 [2022-11-18 19:44:45,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:44:45,057 INFO L495 AbstractCegarLoop]: Abstraction has 1222 states and 1273 transitions. [2022-11-18 19:44:45,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 302 states, 301 states have (on average 3.292358803986711) internal successors, (991), 302 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:44:45,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1273 transitions. [2022-11-18 19:44:45,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2022-11-18 19:44:45,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:44:45,061 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 32, 31, 31, 31, 31, 31, 1, 1, 1, 1] [2022-11-18 19:44:45,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-18 19:44:45,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-11-18 19:44:45,267 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:44:45,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:44:45,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1500488226, now seen corresponding path program 4 times [2022-11-18 19:44:45,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:44:45,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423893015] [2022-11-18 19:44:45,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:44:45,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:44:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:44:55,609 INFO L134 CoverageAnalysis]: Checked inductivity of 5828 backedges. 0 proven. 5828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:44:55,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:44:55,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423893015] [2022-11-18 19:44:55,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423893015] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:44:55,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270472200] [2022-11-18 19:44:55,610 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 19:44:55,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:44:55,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:44:55,611 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:44:55,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-11-18 19:44:55,802 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 19:44:55,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:44:55,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 861 conjuncts, 129 conjunts are in the unsatisfiable core [2022-11-18 19:44:55,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:45:08,596 INFO L134 CoverageAnalysis]: Checked inductivity of 5828 backedges. 0 proven. 5828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:08,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:45:24,895 INFO L134 CoverageAnalysis]: Checked inductivity of 5828 backedges. 0 proven. 5828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:24,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270472200] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:45:24,896 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:45:24,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 385 [2022-11-18 19:45:24,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477925352] [2022-11-18 19:45:24,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:45:24,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 386 states [2022-11-18 19:45:24,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:45:24,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 386 interpolants. [2022-11-18 19:45:24,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20791, Invalid=127819, Unknown=0, NotChecked=0, Total=148610 [2022-11-18 19:45:24,915 INFO L87 Difference]: Start difference. First operand 1222 states and 1273 transitions. Second operand has 386 states, 385 states have (on average 2.979220779220779) internal successors, (1147), 386 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:14,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:14,389 INFO L93 Difference]: Finished difference Result 1478 states and 1531 transitions. [2022-11-18 19:47:14,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 351 states. [2022-11-18 19:47:14,392 INFO L78 Accepts]: Start accepts. Automaton has has 386 states, 385 states have (on average 2.979220779220779) internal successors, (1147), 386 states have internal predecessors, (1147), 0 states have call successors, (0), 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 383 [2022-11-18 19:47:14,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:14,397 INFO L225 Difference]: With dead ends: 1478 [2022-11-18 19:47:14,397 INFO L226 Difference]: Without dead ends: 1477 [2022-11-18 19:47:14,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1145 GetRequests, 509 SyntacticMatches, 0 SemanticMatches, 636 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161487 ImplicationChecksByTransitivity, 132.2s TimeCoverageRelationStatistics Valid=77528, Invalid=328878, Unknown=0, NotChecked=0, Total=406406 [2022-11-18 19:47:14,419 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 20288 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 2210 mSolverCounterSat, 5766 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20288 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 7976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5766 IncrementalHoareTripleChecker+Valid, 2210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:14,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20288 Valid, 1709 Invalid, 7976 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5766 Valid, 2210 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-18 19:47:14,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2022-11-18 19:47:14,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1428. [2022-11-18 19:47:14,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1425 states have (on average 1.0519298245614035) internal successors, (1499), 1427 states have internal predecessors, (1499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:14,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1499 transitions. [2022-11-18 19:47:14,491 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1499 transitions. Word has length 383 [2022-11-18 19:47:14,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:14,492 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1499 transitions. [2022-11-18 19:47:14,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 386 states, 385 states have (on average 2.979220779220779) internal successors, (1147), 386 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:14,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1499 transitions. [2022-11-18 19:47:14,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-11-18 19:47:14,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:14,496 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 31, 31, 1, 1, 1, 1] [2022-11-18 19:47:14,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:14,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-11-18 19:47:14,702 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:47:14,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:14,703 INFO L85 PathProgramCache]: Analyzing trace with hash 974937666, now seen corresponding path program 5 times [2022-11-18 19:47:14,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:14,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361357970] [2022-11-18 19:47:14,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:14,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,669 INFO L134 CoverageAnalysis]: Checked inductivity of 5921 backedges. 0 proven. 5921 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:24,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:24,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361357970] [2022-11-18 19:47:24,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361357970] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:47:24,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46302401] [2022-11-18 19:47:24,670 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 19:47:24,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:24,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:24,672 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:24,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-18 19:47:25,063 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2022-11-18 19:47:25,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:47:25,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 130 conjunts are in the unsatisfiable core [2022-11-18 19:47:25,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:38,358 INFO L134 CoverageAnalysis]: Checked inductivity of 5921 backedges. 0 proven. 5921 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:38,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:47:55,643 INFO L134 CoverageAnalysis]: Checked inductivity of 5921 backedges. 0 proven. 5921 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:55,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46302401] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:47:55,644 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:47:55,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [130, 130, 130] total 387 [2022-11-18 19:47:55,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213534175] [2022-11-18 19:47:55,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:47:55,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 388 states [2022-11-18 19:47:55,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:55,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 388 interpolants. [2022-11-18 19:47:55,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21054, Invalid=129102, Unknown=0, NotChecked=0, Total=150156 [2022-11-18 19:47:55,658 INFO L87 Difference]: Start difference. First operand 1428 states and 1499 transitions. Second operand has 388 states, 387 states have (on average 2.9819121447028425) internal successors, (1154), 388 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:49:58,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:58,857 INFO L93 Difference]: Finished difference Result 1468 states and 1503 transitions. [2022-11-18 19:49:58,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 351 states. [2022-11-18 19:49:58,857 INFO L78 Accepts]: Start accepts. Automaton has has 388 states, 387 states have (on average 2.9819121447028425) internal successors, (1154), 388 states have internal predecessors, (1154), 0 states have call successors, (0), 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 386 [2022-11-18 19:49:58,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:58,863 INFO L225 Difference]: With dead ends: 1468 [2022-11-18 19:49:58,863 INFO L226 Difference]: Without dead ends: 1467 [2022-11-18 19:49:58,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1151 GetRequests, 514 SyntacticMatches, 0 SemanticMatches, 637 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163811 ImplicationChecksByTransitivity, 146.1s TimeCoverageRelationStatistics Valid=83819, Invalid=323863, Unknown=0, NotChecked=0, Total=407682 [2022-11-18 19:49:58,884 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 21710 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 2137 mSolverCounterSat, 6253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21710 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 8390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6253 IncrementalHoareTripleChecker+Valid, 2137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:58,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21710 Valid, 1722 Invalid, 8390 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6253 Valid, 2137 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-18 19:49:58,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2022-11-18 19:49:58,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1431. [2022-11-18 19:49:58,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 1428 states have (on average 1.030112044817927) internal successors, (1471), 1430 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:49:58,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1471 transitions. [2022-11-18 19:49:58,983 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1471 transitions. Word has length 386 [2022-11-18 19:49:58,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:58,984 INFO L495 AbstractCegarLoop]: Abstraction has 1431 states and 1471 transitions. [2022-11-18 19:49:58,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 388 states, 387 states have (on average 2.9819121447028425) internal successors, (1154), 388 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:49:58,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1471 transitions. [2022-11-18 19:49:58,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2022-11-18 19:49:58,989 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:58,990 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 46, 46, 46, 46, 1, 1, 1, 1] [2022-11-18 19:49:59,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2022-11-18 19:49:59,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:49:59,197 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:49:59,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:59,197 INFO L85 PathProgramCache]: Analyzing trace with hash -857530249, now seen corresponding path program 5 times [2022-11-18 19:49:59,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:59,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241547995] [2022-11-18 19:49:59,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:59,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:13,541 INFO L134 CoverageAnalysis]: Checked inductivity of 10626 backedges. 0 proven. 10626 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:13,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:13,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241547995] [2022-11-18 19:50:13,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241547995] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:50:13,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636985743] [2022-11-18 19:50:13,542 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 19:50:13,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:50:13,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:50:13,544 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:50:13,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-11-18 19:50:14,122 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-18 19:50:14,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:50:14,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 1109 conjuncts, 143 conjunts are in the unsatisfiable core [2022-11-18 19:50:14,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:50:32,635 INFO L134 CoverageAnalysis]: Checked inductivity of 10626 backedges. 0 proven. 10626 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:32,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:50:55,400 INFO L134 CoverageAnalysis]: Checked inductivity of 10626 backedges. 0 proven. 10626 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:55,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636985743] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:50:55,401 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:50:55,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [143, 143, 143] total 427 [2022-11-18 19:50:55,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757195646] [2022-11-18 19:50:55,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:50:55,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 428 states [2022-11-18 19:50:55,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:55,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 428 interpolants. [2022-11-18 19:50:55,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22661, Invalid=160095, Unknown=0, NotChecked=0, Total=182756 [2022-11-18 19:50:55,424 INFO L87 Difference]: Start difference. First operand 1431 states and 1471 transitions. Second operand has 428 states, 427 states have (on average 3.2903981264637) internal successors, (1405), 428 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:22,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:22,343 INFO L93 Difference]: Finished difference Result 2137 states and 2262 transitions. [2022-11-18 19:53:22,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 285 states. [2022-11-18 19:53:22,344 INFO L78 Accepts]: Start accepts. Automaton has has 428 states, 427 states have (on average 3.2903981264637) internal successors, (1405), 428 states have internal predecessors, (1405), 0 states have call successors, (0), 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 469 [2022-11-18 19:53:22,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:22,351 INFO L225 Difference]: With dead ends: 2137 [2022-11-18 19:53:22,352 INFO L226 Difference]: Without dead ends: 2136 [2022-11-18 19:53:22,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1267 GetRequests, 653 SyntacticMatches, 0 SemanticMatches, 614 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149084 ImplicationChecksByTransitivity, 182.7s TimeCoverageRelationStatistics Valid=67345, Invalid=311495, Unknown=0, NotChecked=0, Total=378840 [2022-11-18 19:53:22,380 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 29939 mSDsluCounter, 2822 mSDsCounter, 0 mSdLazyCounter, 1836 mSolverCounterSat, 5287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29939 SdHoareTripleChecker+Valid, 2836 SdHoareTripleChecker+Invalid, 7123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5287 IncrementalHoareTripleChecker+Valid, 1836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:22,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29939 Valid, 2836 Invalid, 7123 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5287 Valid, 1836 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-18 19:53:22,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2022-11-18 19:53:22,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 2076. [2022-11-18 19:53:22,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2076 states, 2073 states have (on average 1.044862518089725) internal successors, (2166), 2075 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:22,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2076 states to 2076 states and 2166 transitions. [2022-11-18 19:53:22,535 INFO L78 Accepts]: Start accepts. Automaton has 2076 states and 2166 transitions. Word has length 469 [2022-11-18 19:53:22,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:22,537 INFO L495 AbstractCegarLoop]: Abstraction has 2076 states and 2166 transitions. [2022-11-18 19:53:22,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 428 states, 427 states have (on average 3.2903981264637) internal successors, (1405), 428 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:22,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2076 states and 2166 transitions. [2022-11-18 19:53:22,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2022-11-18 19:53:22,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:22,546 INFO L195 NwaCegarLoop]: trace histogram [67, 67, 67, 67, 67, 67, 67, 66, 66, 66, 1, 1, 1, 1] [2022-11-18 19:53:22,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2022-11-18 19:53:22,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-11-18 19:53:22,755 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 19:53:22,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:22,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1697688525, now seen corresponding path program 4 times [2022-11-18 19:53:22,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:22,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75596136] [2022-11-18 19:53:22,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:22,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:56,981 INFO L134 CoverageAnalysis]: Checked inductivity of 21978 backedges. 0 proven. 21978 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:56,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:56,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75596136] [2022-11-18 19:53:56,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75596136] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:53:56,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213206147] [2022-11-18 19:53:56,982 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 19:53:56,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:53:56,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:56,984 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:53:56,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9181671d-90aa-4043-941c-f2efbcc1b0f8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-11-18 19:53:57,361 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 19:53:57,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:57,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 1573 conjuncts, 203 conjunts are in the unsatisfiable core [2022-11-18 19:53:57,386 INFO L286 TraceCheckSpWp]: Computing forward predicates...