./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-crafted/bor5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-crafted/bor5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS --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 1a4987addfe5f74a2ffcc1ac07d342e5a630d26b982b6fa887540d0e2c4f5965 --- 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-4e7fbc6 [2022-11-23 03:18:46,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:18:46,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:18:46,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:18:46,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:18:46,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:18:47,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:18:47,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:18:47,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:18:47,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:18:47,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:18:47,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:18:47,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:18:47,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:18:47,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:18:47,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:18:47,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:18:47,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:18:47,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:18:47,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:18:47,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:18:47,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:18:47,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:18:47,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:18:47,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:18:47,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:18:47,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:18:47,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:18:47,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:18:47,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:18:47,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:18:47,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:18:47,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:18:47,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:18:47,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:18:47,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:18:47,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:18:47,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:18:47,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:18:47,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:18:47,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:18:47,080 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-23 03:18:47,129 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:18:47,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:18:47,130 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:18:47,131 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:18:47,132 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:18:47,132 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:18:47,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:18:47,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:18:47,134 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:18:47,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:18:47,136 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:18:47,136 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:18:47,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:18:47,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:18:47,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:18:47,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:18:47,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:18:47,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:18:47,138 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:18:47,139 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:18:47,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:18:47,139 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:18:47,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:18:47,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:18:47,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:18:47,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:18:47,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:18:47,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:18:47,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:18:47,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:18:47,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:18:47,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:18:47,142 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:18:47,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:18:47,143 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:18:47,143 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:18:47,144 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a4987addfe5f74a2ffcc1ac07d342e5a630d26b982b6fa887540d0e2c4f5965 [2022-11-23 03:18:47,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:18:47,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:18:47,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:18:47,525 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:18:47,525 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:18:47,527 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/array-crafted/bor5.i [2022-11-23 03:18:51,099 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:18:51,323 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:18:51,324 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/sv-benchmarks/c/array-crafted/bor5.i [2022-11-23 03:18:51,331 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/data/5267ac331/aa1cfeca1dfb4bdd80b81c88f2c7a28c/FLAG9e435fbde [2022-11-23 03:18:51,348 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/data/5267ac331/aa1cfeca1dfb4bdd80b81c88f2c7a28c [2022-11-23 03:18:51,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:18:51,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:18:51,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:18:51,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:18:51,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:18:51,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:18:51" (1/1) ... [2022-11-23 03:18:51,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c03e6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:51, skipping insertion in model container [2022-11-23 03:18:51,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:18:51" (1/1) ... [2022-11-23 03:18:51,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:18:51,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:18:51,603 WARN L237 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_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/sv-benchmarks/c/array-crafted/bor5.i[1364,1377] [2022-11-23 03:18:51,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:18:51,615 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:18:51,643 WARN L237 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_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/sv-benchmarks/c/array-crafted/bor5.i[1364,1377] [2022-11-23 03:18:51,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:18:51,662 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:18:51,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:51 WrapperNode [2022-11-23 03:18:51,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:18:51,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:18:51,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:18:51,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:18:51,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:51" (1/1) ... [2022-11-23 03:18:51,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:51" (1/1) ... [2022-11-23 03:18:51,709 INFO L138 Inliner]: procedures = 16, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 87 [2022-11-23 03:18:51,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:18:51,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:18:51,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:18:51,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:18:51,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:51" (1/1) ... [2022-11-23 03:18:51,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:51" (1/1) ... [2022-11-23 03:18:51,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:51" (1/1) ... [2022-11-23 03:18:51,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:51" (1/1) ... [2022-11-23 03:18:51,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:51" (1/1) ... [2022-11-23 03:18:51,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:51" (1/1) ... [2022-11-23 03:18:51,742 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:51" (1/1) ... [2022-11-23 03:18:51,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:51" (1/1) ... [2022-11-23 03:18:51,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:18:51,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:18:51,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:18:51,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:18:51,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:51" (1/1) ... [2022-11-23 03:18:51,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:18:51,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:51,795 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:18:51,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:18:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:18:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure bor [2022-11-23 03:18:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure bor [2022-11-23 03:18:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:18:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:18:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:18:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:18:51,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:18:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:18:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:18:51,929 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:18:51,932 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:18:52,299 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:18:52,308 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:18:52,308 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-23 03:18:52,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:18:52 BoogieIcfgContainer [2022-11-23 03:18:52,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:18:52,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:18:52,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:18:52,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:18:52,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:18:51" (1/3) ... [2022-11-23 03:18:52,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bac1884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:18:52, skipping insertion in model container [2022-11-23 03:18:52,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:51" (2/3) ... [2022-11-23 03:18:52,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bac1884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:18:52, skipping insertion in model container [2022-11-23 03:18:52,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:18:52" (3/3) ... [2022-11-23 03:18:52,338 INFO L112 eAbstractionObserver]: Analyzing ICFG bor5.i [2022-11-23 03:18:52,392 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:18:52,392 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-23 03:18:52,522 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:18:52,536 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;@633d82fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:18:52,537 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-23 03:18:52,545 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 47 states have internal predecessors, (57), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 03:18:52,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 03:18:52,555 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:52,556 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 03:18:52,558 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 03:18:52,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:52,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1836183244, now seen corresponding path program 1 times [2022-11-23 03:18:52,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:52,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130845688] [2022-11-23 03:18:52,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:52,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:52,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:52,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:52,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130845688] [2022-11-23 03:18:52,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130845688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:18:52,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:18:52,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:18:52,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558732585] [2022-11-23 03:18:52,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:18:52,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:18:52,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:52,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:18:52,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:18:52,979 INFO L87 Difference]: Start difference. First operand has 52 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 47 states have internal predecessors, (57), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:53,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:53,073 INFO L93 Difference]: Finished difference Result 131 states and 163 transitions. [2022-11-23 03:18:53,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:18:53,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 03:18:53,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:53,086 INFO L225 Difference]: With dead ends: 131 [2022-11-23 03:18:53,086 INFO L226 Difference]: Without dead ends: 72 [2022-11-23 03:18:53,090 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 [2022-11-23 03:18:53,095 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 31 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:53,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 170 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:18:53,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-23 03:18:53,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 49. [2022-11-23 03:18:53,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 33 states have (on average 1.5454545454545454) internal successors, (51), 45 states have internal predecessors, (51), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:18:53,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2022-11-23 03:18:53,170 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 56 transitions. Word has length 6 [2022-11-23 03:18:53,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:53,171 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 56 transitions. [2022-11-23 03:18:53,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:53,171 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 56 transitions. [2022-11-23 03:18:53,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 03:18:53,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:53,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:53,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:18:53,175 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 03:18:53,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:53,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1958589585, now seen corresponding path program 1 times [2022-11-23 03:18:53,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:53,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014330232] [2022-11-23 03:18:53,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:53,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:53,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:53,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:53,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014330232] [2022-11-23 03:18:53,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014330232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:18:53,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:18:53,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:18:53,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409853947] [2022-11-23 03:18:53,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:18:53,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:18:53,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:53,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:18:53,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:18:53,311 INFO L87 Difference]: Start difference. First operand 49 states and 56 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:53,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:53,381 INFO L93 Difference]: Finished difference Result 85 states and 97 transitions. [2022-11-23 03:18:53,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:18:53,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-23 03:18:53,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:53,383 INFO L225 Difference]: With dead ends: 85 [2022-11-23 03:18:53,384 INFO L226 Difference]: Without dead ends: 49 [2022-11-23 03:18:53,385 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 [2022-11-23 03:18:53,387 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 3 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:53,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 81 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:18:53,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-23 03:18:53,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-23 03:18:53,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 45 states have internal predecessors, (50), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:18:53,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2022-11-23 03:18:53,397 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 11 [2022-11-23 03:18:53,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:53,398 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2022-11-23 03:18:53,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:53,398 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2022-11-23 03:18:53,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 03:18:53,399 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:53,399 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:53,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:18:53,400 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 03:18:53,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:53,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1915461128, now seen corresponding path program 1 times [2022-11-23 03:18:53,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:53,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502950187] [2022-11-23 03:18:53,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:53,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:53,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:53,627 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:53,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:53,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502950187] [2022-11-23 03:18:53,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502950187] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:53,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870066258] [2022-11-23 03:18:53,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:53,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:53,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:53,633 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:53,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 03:18:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:53,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 03:18:53,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:53,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:53,820 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:18:53,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870066258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:18:53,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:18:53,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-23 03:18:53,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701936043] [2022-11-23 03:18:53,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:18:53,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:18:53,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:53,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:18:53,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:18:53,823 INFO L87 Difference]: Start difference. First operand 49 states and 55 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) [2022-11-23 03:18:53,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:53,907 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2022-11-23 03:18:53,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:18:53,908 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 [2022-11-23 03:18:53,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:53,909 INFO L225 Difference]: With dead ends: 49 [2022-11-23 03:18:53,909 INFO L226 Difference]: Without dead ends: 48 [2022-11-23 03:18:53,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:18:53,912 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 30 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:53,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 125 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:18:53,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-23 03:18:53,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-11-23 03:18:53,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 44 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:18:53,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2022-11-23 03:18:53,921 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 10 [2022-11-23 03:18:53,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:53,922 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2022-11-23 03:18:53,922 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) [2022-11-23 03:18:53,922 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2022-11-23 03:18:53,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 03:18:53,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:53,923 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-11-23 03:18:53,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:18:54,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:54,130 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 03:18:54,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:54,131 INFO L85 PathProgramCache]: Analyzing trace with hash -750247095, now seen corresponding path program 1 times [2022-11-23 03:18:54,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:54,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285364510] [2022-11-23 03:18:54,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:54,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:54,237 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:54,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:54,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285364510] [2022-11-23 03:18:54,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285364510] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:54,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270987098] [2022-11-23 03:18:54,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:54,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:54,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:54,241 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:54,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 03:18:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:54,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 03:18:54,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:54,391 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:54,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:18:54,450 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:54,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270987098] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:18:54,451 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:18:54,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-23 03:18:54,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677027842] [2022-11-23 03:18:54,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:18:54,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 03:18:54,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:54,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 03:18:54,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:18:54,454 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:54,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:54,606 INFO L93 Difference]: Finished difference Result 130 states and 150 transitions. [2022-11-23 03:18:54,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 03:18:54,607 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 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 [2022-11-23 03:18:54,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:54,608 INFO L225 Difference]: With dead ends: 130 [2022-11-23 03:18:54,608 INFO L226 Difference]: Without dead ends: 129 [2022-11-23 03:18:54,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:18:54,611 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 78 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:54,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 362 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:18:54,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-11-23 03:18:54,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 60. [2022-11-23 03:18:54,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 56 states have internal predecessors, (64), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:18:54,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2022-11-23 03:18:54,637 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 11 [2022-11-23 03:18:54,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:54,637 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2022-11-23 03:18:54,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:54,638 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2022-11-23 03:18:54,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 03:18:54,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:54,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:54,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 03:18:54,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:54,839 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 03:18:54,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:54,840 INFO L85 PathProgramCache]: Analyzing trace with hash -2112083243, now seen corresponding path program 1 times [2022-11-23 03:18:54,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:54,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859501945] [2022-11-23 03:18:54,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:54,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:54,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 03:18:54,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:54,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859501945] [2022-11-23 03:18:54,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859501945] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:18:54,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:18:54,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:18:54,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550907624] [2022-11-23 03:18:54,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:18:54,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:18:54,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:54,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:18:54,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:18:54,965 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:55,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:55,013 INFO L93 Difference]: Finished difference Result 72 states and 85 transitions. [2022-11-23 03:18:55,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:18:55,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-23 03:18:55,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:55,020 INFO L225 Difference]: With dead ends: 72 [2022-11-23 03:18:55,020 INFO L226 Difference]: Without dead ends: 70 [2022-11-23 03:18:55,022 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 [2022-11-23 03:18:55,024 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 9 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:55,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 133 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:18:55,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-23 03:18:55,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 67. [2022-11-23 03:18:55,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 63 states have internal predecessors, (74), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:18:55,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 79 transitions. [2022-11-23 03:18:55,037 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 79 transitions. Word has length 15 [2022-11-23 03:18:55,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:55,038 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 79 transitions. [2022-11-23 03:18:55,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:55,039 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 79 transitions. [2022-11-23 03:18:55,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 03:18:55,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:55,040 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:55,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 03:18:55,041 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 03:18:55,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:55,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1474413458, now seen corresponding path program 1 times [2022-11-23 03:18:55,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:55,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354389314] [2022-11-23 03:18:55,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:55,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:55,175 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 03:18:55,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:55,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354389314] [2022-11-23 03:18:55,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354389314] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:55,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025448528] [2022-11-23 03:18:55,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:55,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:55,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:55,180 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:55,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 03:18:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:55,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 03:18:55,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:55,400 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 03:18:55,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:18:55,460 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 03:18:55,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025448528] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:18:55,461 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:18:55,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-23 03:18:55,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351728542] [2022-11-23 03:18:55,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:18:55,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 03:18:55,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:55,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 03:18:55,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:18:55,468 INFO L87 Difference]: Start difference. First operand 67 states and 79 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:55,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:55,596 INFO L93 Difference]: Finished difference Result 110 states and 130 transitions. [2022-11-23 03:18:55,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:18:55,597 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-23 03:18:55,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:55,598 INFO L225 Difference]: With dead ends: 110 [2022-11-23 03:18:55,598 INFO L226 Difference]: Without dead ends: 67 [2022-11-23 03:18:55,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:18:55,600 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 17 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:55,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 139 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:18:55,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-23 03:18:55,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-23 03:18:55,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 63 states have internal predecessors, (73), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:18:55,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 78 transitions. [2022-11-23 03:18:55,620 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 78 transitions. Word has length 21 [2022-11-23 03:18:55,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:55,620 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 78 transitions. [2022-11-23 03:18:55,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:55,621 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 78 transitions. [2022-11-23 03:18:55,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-23 03:18:55,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:55,622 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1] [2022-11-23 03:18:55,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 03:18:55,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:55,829 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 03:18:55,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:55,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1313751061, now seen corresponding path program 2 times [2022-11-23 03:18:55,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:55,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022459486] [2022-11-23 03:18:55,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:55,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:56,141 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:56,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:56,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022459486] [2022-11-23 03:18:56,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022459486] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:56,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753324129] [2022-11-23 03:18:56,142 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:18:56,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:56,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:56,144 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:56,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 03:18:56,238 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 03:18:56,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:18:56,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:18:56,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:56,331 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-23 03:18:56,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:18:56,420 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-23 03:18:56,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753324129] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:18:56,421 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:18:56,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-11-23 03:18:56,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802734290] [2022-11-23 03:18:56,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:18:56,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-23 03:18:56,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:56,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-23 03:18:56,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-23 03:18:56,429 INFO L87 Difference]: Start difference. First operand 67 states and 78 transitions. Second operand has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 15 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) [2022-11-23 03:18:56,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:56,887 INFO L93 Difference]: Finished difference Result 156 states and 190 transitions. [2022-11-23 03:18:56,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:18:56,894 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 15 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) Word has length 23 [2022-11-23 03:18:56,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:56,898 INFO L225 Difference]: With dead ends: 156 [2022-11-23 03:18:56,898 INFO L226 Difference]: Without dead ends: 153 [2022-11-23 03:18:56,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2022-11-23 03:18:56,901 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 222 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:56,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 236 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:18:56,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-11-23 03:18:56,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 53. [2022-11-23 03:18:56,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 41 states have (on average 1.3902439024390243) internal successors, (57), 49 states have internal predecessors, (57), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:18:56,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 62 transitions. [2022-11-23 03:18:56,921 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 62 transitions. Word has length 23 [2022-11-23 03:18:56,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:56,921 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 62 transitions. [2022-11-23 03:18:56,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 15 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) [2022-11-23 03:18:56,922 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 62 transitions. [2022-11-23 03:18:56,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-23 03:18:56,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:56,923 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:56,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 03:18:57,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:57,124 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 03:18:57,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:57,124 INFO L85 PathProgramCache]: Analyzing trace with hash 253799858, now seen corresponding path program 2 times [2022-11-23 03:18:57,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:57,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75498764] [2022-11-23 03:18:57,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:57,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,285 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 03:18:57,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:57,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75498764] [2022-11-23 03:18:57,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75498764] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:57,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872335846] [2022-11-23 03:18:57,286 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:18:57,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:57,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:57,288 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:57,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 03:18:57,382 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:18:57,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:18:57,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 03:18:57,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:57,438 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 03:18:57,439 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:18:57,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872335846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:18:57,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:18:57,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-23 03:18:57,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395022504] [2022-11-23 03:18:57,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:18:57,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:18:57,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:57,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:18:57,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:18:57,442 INFO L87 Difference]: Start difference. First operand 53 states and 62 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:57,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:57,500 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2022-11-23 03:18:57,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:18:57,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-23 03:18:57,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:57,504 INFO L225 Difference]: With dead ends: 56 [2022-11-23 03:18:57,504 INFO L226 Difference]: Without dead ends: 55 [2022-11-23 03:18:57,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:18:57,506 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 20 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:57,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 173 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:18:57,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-23 03:18:57,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 52. [2022-11-23 03:18:57,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 48 states have internal predecessors, (56), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:18:57,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 61 transitions. [2022-11-23 03:18:57,519 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 61 transitions. Word has length 25 [2022-11-23 03:18:57,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:57,519 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 61 transitions. [2022-11-23 03:18:57,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:57,520 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2022-11-23 03:18:57,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-23 03:18:57,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:57,524 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:57,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 03:18:57,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-23 03:18:57,731 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 03:18:57,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:57,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1748808507, now seen corresponding path program 1 times [2022-11-23 03:18:57,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:57,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168996400] [2022-11-23 03:18:57,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:57,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:57,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:18:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-23 03:18:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,875 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-23 03:18:57,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:57,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168996400] [2022-11-23 03:18:57,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168996400] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:57,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155018911] [2022-11-23 03:18:57,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:57,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:57,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:57,878 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:57,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 03:18:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:57,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:18:57,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:58,021 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 03:18:58,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:18:58,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155018911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:18:58,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:18:58,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2022-11-23 03:18:58,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546344250] [2022-11-23 03:18:58,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:18:58,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:18:58,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:58,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:18:58,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:18:58,025 INFO L87 Difference]: Start difference. First operand 52 states and 61 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:18:58,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:58,048 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2022-11-23 03:18:58,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:18:58,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2022-11-23 03:18:58,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:58,053 INFO L225 Difference]: With dead ends: 52 [2022-11-23 03:18:58,053 INFO L226 Difference]: Without dead ends: 50 [2022-11-23 03:18:58,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:18:58,056 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:58,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 34 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:18:58,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-23 03:18:58,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-23 03:18:58,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 46 states have internal predecessors, (54), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:18:58,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2022-11-23 03:18:58,077 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 27 [2022-11-23 03:18:58,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:58,079 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2022-11-23 03:18:58,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:18:58,079 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2022-11-23 03:18:58,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-23 03:18:58,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:58,081 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:58,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 03:18:58,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:58,288 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 03:18:58,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:58,288 INFO L85 PathProgramCache]: Analyzing trace with hash -722138938, now seen corresponding path program 1 times [2022-11-23 03:18:58,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:58,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323004875] [2022-11-23 03:18:58,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:58,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:58,366 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 03:18:58,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:58,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323004875] [2022-11-23 03:18:58,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323004875] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:58,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163533477] [2022-11-23 03:18:58,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:58,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:58,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:58,368 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:58,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 03:18:58,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:58,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-23 03:18:58,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:58,649 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:58,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:18:58,805 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:58,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163533477] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:18:58,806 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:18:58,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 18 [2022-11-23 03:18:58,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735434331] [2022-11-23 03:18:58,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:18:58,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-23 03:18:58,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:58,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-23 03:18:58,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-11-23 03:18:58,808 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:59,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:59,310 INFO L93 Difference]: Finished difference Result 156 states and 193 transitions. [2022-11-23 03:18:59,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 03:18:59,311 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-23 03:18:59,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:59,314 INFO L225 Difference]: With dead ends: 156 [2022-11-23 03:18:59,314 INFO L226 Difference]: Without dead ends: 113 [2022-11-23 03:18:59,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=634, Unknown=0, NotChecked=0, Total=756 [2022-11-23 03:18:59,319 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 123 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:59,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 348 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 03:18:59,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-23 03:18:59,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 91. [2022-11-23 03:18:59,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 77 states have (on average 1.3116883116883118) internal successors, (101), 84 states have internal predecessors, (101), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-23 03:18:59,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 116 transitions. [2022-11-23 03:18:59,347 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 116 transitions. Word has length 26 [2022-11-23 03:18:59,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:59,348 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 116 transitions. [2022-11-23 03:18:59,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:59,348 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 116 transitions. [2022-11-23 03:18:59,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 03:18:59,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:59,349 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:59,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 03:18:59,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:59,562 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 03:18:59,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:59,563 INFO L85 PathProgramCache]: Analyzing trace with hash 801026054, now seen corresponding path program 1 times [2022-11-23 03:18:59,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:59,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865686749] [2022-11-23 03:18:59,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:59,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:59,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:18:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:59,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-23 03:18:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:59,674 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-23 03:18:59,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:59,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865686749] [2022-11-23 03:18:59,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865686749] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:59,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547145762] [2022-11-23 03:18:59,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:59,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:59,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:59,676 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:59,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 03:18:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:59,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:18:59,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:59,797 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 03:18:59,797 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:18:59,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547145762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:18:59,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:18:59,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-23 03:18:59,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073315576] [2022-11-23 03:18:59,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:18:59,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:18:59,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:59,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:18:59,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:18:59,801 INFO L87 Difference]: Start difference. First operand 91 states and 116 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:18:59,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:59,835 INFO L93 Difference]: Finished difference Result 113 states and 144 transitions. [2022-11-23 03:18:59,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:18:59,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2022-11-23 03:18:59,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:59,837 INFO L225 Difference]: With dead ends: 113 [2022-11-23 03:18:59,837 INFO L226 Difference]: Without dead ends: 112 [2022-11-23 03:18:59,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:18:59,838 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 10 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:59,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 72 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:18:59,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-11-23 03:18:59,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 99. [2022-11-23 03:18:59,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 85 states have (on average 1.2941176470588236) internal successors, (110), 92 states have internal predecessors, (110), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-23 03:18:59,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 125 transitions. [2022-11-23 03:18:59,858 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 125 transitions. Word has length 30 [2022-11-23 03:18:59,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:59,859 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 125 transitions. [2022-11-23 03:18:59,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:18:59,859 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 125 transitions. [2022-11-23 03:18:59,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 03:18:59,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:59,864 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:59,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-23 03:19:00,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-23 03:19:00,070 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 03:19:00,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:19:00,071 INFO L85 PathProgramCache]: Analyzing trace with hash -937995998, now seen corresponding path program 1 times [2022-11-23 03:19:00,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:19:00,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465754203] [2022-11-23 03:19:00,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:19:00,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:19:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:00,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:19:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:00,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-23 03:19:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:00,151 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-23 03:19:00,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:19:00,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465754203] [2022-11-23 03:19:00,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465754203] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:19:00,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10697729] [2022-11-23 03:19:00,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:19:00,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:19:00,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:19:00,153 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:19:00,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 03:19:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:00,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:19:00,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:19:00,270 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 03:19:00,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:19:00,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10697729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:19:00,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:19:00,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-23 03:19:00,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924180755] [2022-11-23 03:19:00,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:19:00,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:19:00,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:19:00,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:19:00,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:19:00,273 INFO L87 Difference]: Start difference. First operand 99 states and 125 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:19:00,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:19:00,299 INFO L93 Difference]: Finished difference Result 113 states and 142 transitions. [2022-11-23 03:19:00,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:19:00,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2022-11-23 03:19:00,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:19:00,301 INFO L225 Difference]: With dead ends: 113 [2022-11-23 03:19:00,301 INFO L226 Difference]: Without dead ends: 112 [2022-11-23 03:19:00,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:19:00,302 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 8 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:19:00,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 73 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:19:00,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-11-23 03:19:00,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 101. [2022-11-23 03:19:00,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 87 states have (on average 1.2873563218390804) internal successors, (112), 94 states have internal predecessors, (112), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-23 03:19:00,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 127 transitions. [2022-11-23 03:19:00,314 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 127 transitions. Word has length 31 [2022-11-23 03:19:00,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:19:00,314 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 127 transitions. [2022-11-23 03:19:00,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:19:00,315 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 127 transitions. [2022-11-23 03:19:00,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 03:19:00,316 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:19:00,316 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:19:00,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-23 03:19:00,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:19:00,522 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 03:19:00,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:19:00,522 INFO L85 PathProgramCache]: Analyzing trace with hash 528981476, now seen corresponding path program 1 times [2022-11-23 03:19:00,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:19:00,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503295646] [2022-11-23 03:19:00,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:19:00,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:19:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:00,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:19:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:00,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-23 03:19:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:00,608 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-23 03:19:00,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:19:00,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503295646] [2022-11-23 03:19:00,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503295646] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:19:00,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893604856] [2022-11-23 03:19:00,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:19:00,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:19:00,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:19:00,616 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:19:00,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-23 03:19:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:00,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:19:00,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:19:00,759 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 03:19:00,760 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:19:00,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893604856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:19:00,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:19:00,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2022-11-23 03:19:00,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911803644] [2022-11-23 03:19:00,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:19:00,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:19:00,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:19:00,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:19:00,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:19:00,762 INFO L87 Difference]: Start difference. First operand 101 states and 127 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:19:00,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:19:00,811 INFO L93 Difference]: Finished difference Result 133 states and 163 transitions. [2022-11-23 03:19:00,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:19:00,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2022-11-23 03:19:00,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:19:00,813 INFO L225 Difference]: With dead ends: 133 [2022-11-23 03:19:00,813 INFO L226 Difference]: Without dead ends: 98 [2022-11-23 03:19:00,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:19:00,814 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 52 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:19:00,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 56 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:19:00,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-23 03:19:00,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-11-23 03:19:00,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 85 states have (on average 1.2705882352941176) internal successors, (108), 91 states have internal predecessors, (108), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-23 03:19:00,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 119 transitions. [2022-11-23 03:19:00,825 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 119 transitions. Word has length 33 [2022-11-23 03:19:00,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:19:00,825 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 119 transitions. [2022-11-23 03:19:00,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:19:00,825 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 119 transitions. [2022-11-23 03:19:00,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-23 03:19:00,826 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:19:00,826 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:19:00,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-23 03:19:01,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-23 03:19:01,033 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 03:19:01,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:19:01,033 INFO L85 PathProgramCache]: Analyzing trace with hash -515954615, now seen corresponding path program 2 times [2022-11-23 03:19:01,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:19:01,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116962386] [2022-11-23 03:19:01,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:19:01,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:19:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:01,146 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-23 03:19:01,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:19:01,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116962386] [2022-11-23 03:19:01,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116962386] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:19:01,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617548545] [2022-11-23 03:19:01,147 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:19:01,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:19:01,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:19:01,148 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:19:01,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-23 03:19:01,253 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 03:19:01,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:19:01,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:19:01,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:19:01,347 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-23 03:19:01,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:19:01,431 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-23 03:19:01,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617548545] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:19:01,432 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:19:01,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2022-11-23 03:19:01,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053035951] [2022-11-23 03:19:01,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:19:01,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 03:19:01,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:19:01,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 03:19:01,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:19:01,434 INFO L87 Difference]: Start difference. First operand 98 states and 119 transitions. Second operand has 11 states, 10 states have (on average 4.7) internal successors, (47), 11 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:19:01,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:19:01,628 INFO L93 Difference]: Finished difference Result 112 states and 140 transitions. [2022-11-23 03:19:01,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 03:19:01,628 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.7) internal successors, (47), 11 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-11-23 03:19:01,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:19:01,631 INFO L225 Difference]: With dead ends: 112 [2022-11-23 03:19:01,631 INFO L226 Difference]: Without dead ends: 108 [2022-11-23 03:19:01,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 66 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2022-11-23 03:19:01,632 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 92 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:19:01,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 152 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:19:01,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-11-23 03:19:01,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 74. [2022-11-23 03:19:01,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 63 states have (on average 1.2222222222222223) internal successors, (77), 68 states have internal predecessors, (77), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-23 03:19:01,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 87 transitions. [2022-11-23 03:19:01,648 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 87 transitions. Word has length 36 [2022-11-23 03:19:01,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:19:01,648 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 87 transitions. [2022-11-23 03:19:01,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.7) internal successors, (47), 11 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:19:01,649 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 87 transitions. [2022-11-23 03:19:01,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-23 03:19:01,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:19:01,653 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:19:01,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-23 03:19:01,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-23 03:19:01,858 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 03:19:01,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:19:01,858 INFO L85 PathProgramCache]: Analyzing trace with hash -359205436, now seen corresponding path program 1 times [2022-11-23 03:19:01,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:19:01,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390627298] [2022-11-23 03:19:01,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:19:01,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:19:01,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:01,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:19:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:01,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:19:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:01,941 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:19:01,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:19:01,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390627298] [2022-11-23 03:19:01,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390627298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:19:01,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:19:01,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:19:01,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012576675] [2022-11-23 03:19:01,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:19:01,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:19:01,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:19:01,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:19:01,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:19:01,943 INFO L87 Difference]: Start difference. First operand 74 states and 87 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:19:01,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:19:01,980 INFO L93 Difference]: Finished difference Result 79 states and 92 transitions. [2022-11-23 03:19:01,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:19:01,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2022-11-23 03:19:01,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:19:01,982 INFO L225 Difference]: With dead ends: 79 [2022-11-23 03:19:01,982 INFO L226 Difference]: Without dead ends: 77 [2022-11-23 03:19:01,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:19:01,983 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 3 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:19:01,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 93 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:19:01,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-23 03:19:01,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-11-23 03:19:01,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 66 states have (on average 1.2121212121212122) internal successors, (80), 71 states have internal predecessors, (80), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-23 03:19:01,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 90 transitions. [2022-11-23 03:19:01,992 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 90 transitions. Word has length 45 [2022-11-23 03:19:01,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:19:01,993 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 90 transitions. [2022-11-23 03:19:01,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:19:01,993 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 90 transitions. [2022-11-23 03:19:01,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-23 03:19:01,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:19:01,994 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:19:01,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 03:19:01,994 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 03:19:01,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:19:01,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1423321650, now seen corresponding path program 1 times [2022-11-23 03:19:01,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:19:01,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687664645] [2022-11-23 03:19:01,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:19:01,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:19:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:02,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:19:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:02,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:19:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:02,089 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:19:02,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:19:02,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687664645] [2022-11-23 03:19:02,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687664645] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:19:02,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009734513] [2022-11-23 03:19:02,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:19:02,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:19:02,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:19:02,091 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:19:02,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-23 03:19:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:02,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:19:02,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:19:02,238 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:19:02,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:19:02,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009734513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:19:02,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:19:02,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-23 03:19:02,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201549766] [2022-11-23 03:19:02,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:19:02,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:19:02,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:19:02,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:19:02,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:19:02,241 INFO L87 Difference]: Start difference. First operand 77 states and 90 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:19:02,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:19:02,277 INFO L93 Difference]: Finished difference Result 77 states and 90 transitions. [2022-11-23 03:19:02,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:19:02,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2022-11-23 03:19:02,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:19:02,279 INFO L225 Difference]: With dead ends: 77 [2022-11-23 03:19:02,280 INFO L226 Difference]: Without dead ends: 75 [2022-11-23 03:19:02,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:19:02,281 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 7 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:19:02,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 82 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:19:02,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-23 03:19:02,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-11-23 03:19:02,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 66 states have (on average 1.1818181818181819) internal successors, (78), 69 states have internal predecessors, (78), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-23 03:19:02,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 88 transitions. [2022-11-23 03:19:02,292 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 88 transitions. Word has length 50 [2022-11-23 03:19:02,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:19:02,292 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 88 transitions. [2022-11-23 03:19:02,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:19:02,293 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 88 transitions. [2022-11-23 03:19:02,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-23 03:19:02,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:19:02,294 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:19:02,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-23 03:19:02,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-23 03:19:02,500 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 03:19:02,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:19:02,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1173298086, now seen corresponding path program 1 times [2022-11-23 03:19:02,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:19:02,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511391645] [2022-11-23 03:19:02,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:19:02,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:19:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:02,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:19:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:02,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:19:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:02,598 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:19:02,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:19:02,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511391645] [2022-11-23 03:19:02,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511391645] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:19:02,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318191469] [2022-11-23 03:19:02,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:19:02,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:19:02,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:19:02,601 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:19:02,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-23 03:19:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:02,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:19:02,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:19:02,755 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:19:02,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:19:02,814 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:19:02,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318191469] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:19:02,815 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:19:02,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-11-23 03:19:02,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097838733] [2022-11-23 03:19:02,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:19:02,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 03:19:02,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:19:02,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 03:19:02,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:19:02,817 INFO L87 Difference]: Start difference. First operand 75 states and 88 transitions. Second operand has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:19:02,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:19:02,916 INFO L93 Difference]: Finished difference Result 90 states and 104 transitions. [2022-11-23 03:19:02,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:19:02,917 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 51 [2022-11-23 03:19:02,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:19:02,920 INFO L225 Difference]: With dead ends: 90 [2022-11-23 03:19:02,921 INFO L226 Difference]: Without dead ends: 88 [2022-11-23 03:19:02,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:19:02,922 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 12 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:19:02,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 231 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:19:02,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-23 03:19:02,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-11-23 03:19:02,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 79 states have (on average 1.1518987341772151) internal successors, (91), 82 states have internal predecessors, (91), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-23 03:19:02,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 101 transitions. [2022-11-23 03:19:02,934 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 101 transitions. Word has length 51 [2022-11-23 03:19:02,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:19:02,935 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 101 transitions. [2022-11-23 03:19:02,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:19:02,935 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 101 transitions. [2022-11-23 03:19:02,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-23 03:19:02,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:19:02,937 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:19:02,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-23 03:19:03,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-23 03:19:03,144 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 03:19:03,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:19:03,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1049471366, now seen corresponding path program 1 times [2022-11-23 03:19:03,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:19:03,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335113928] [2022-11-23 03:19:03,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:19:03,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:19:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:03,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:19:03,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:03,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:19:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:03,224 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-23 03:19:03,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:19:03,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335113928] [2022-11-23 03:19:03,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335113928] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:19:03,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:19:03,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:19:03,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560231764] [2022-11-23 03:19:03,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:19:03,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:19:03,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:19:03,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:19:03,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:19:03,227 INFO L87 Difference]: Start difference. First operand 88 states and 101 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:19:03,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:19:03,257 INFO L93 Difference]: Finished difference Result 88 states and 101 transitions. [2022-11-23 03:19:03,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:19:03,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 62 [2022-11-23 03:19:03,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:19:03,259 INFO L225 Difference]: With dead ends: 88 [2022-11-23 03:19:03,259 INFO L226 Difference]: Without dead ends: 87 [2022-11-23 03:19:03,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:19:03,260 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 6 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:19:03,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 86 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:19:03,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-23 03:19:03,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-11-23 03:19:03,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 79 states have (on average 1.139240506329114) internal successors, (90), 81 states have internal predecessors, (90), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-23 03:19:03,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 100 transitions. [2022-11-23 03:19:03,271 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 100 transitions. Word has length 62 [2022-11-23 03:19:03,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:19:03,271 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 100 transitions. [2022-11-23 03:19:03,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:19:03,272 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 100 transitions. [2022-11-23 03:19:03,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-23 03:19:03,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:19:03,273 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:19:03,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-23 03:19:03,273 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 03:19:03,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:19:03,274 INFO L85 PathProgramCache]: Analyzing trace with hash -334634230, now seen corresponding path program 2 times [2022-11-23 03:19:03,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:19:03,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215964447] [2022-11-23 03:19:03,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:19:03,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:19:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:03,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:19:03,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:03,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:19:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:03,367 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-23 03:19:03,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:19:03,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215964447] [2022-11-23 03:19:03,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215964447] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:19:03,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366021692] [2022-11-23 03:19:03,368 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:19:03,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:19:03,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:19:03,370 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:19:03,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-23 03:19:03,470 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 03:19:03,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:19:03,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:19:03,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:19:03,599 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-23 03:19:03,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:19:03,693 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-23 03:19:03,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366021692] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:19:03,694 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:19:03,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-23 03:19:03,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81180651] [2022-11-23 03:19:03,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:19:03,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:19:03,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:19:03,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:19:03,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:19:03,698 INFO L87 Difference]: Start difference. First operand 87 states and 100 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-23 03:19:03,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:19:03,741 INFO L93 Difference]: Finished difference Result 87 states and 100 transitions. [2022-11-23 03:19:03,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:19:03,742 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 67 [2022-11-23 03:19:03,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:19:03,742 INFO L225 Difference]: With dead ends: 87 [2022-11-23 03:19:03,742 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 03:19:03,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:19:03,744 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 26 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:19:03,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 44 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:19:03,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 03:19:03,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 03:19:03,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:19:03,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 03:19:03,745 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2022-11-23 03:19:03,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:19:03,746 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 03:19:03,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-23 03:19:03,746 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 03:19:03,746 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 03:19:03,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-11-23 03:19:03,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-11-23 03:19:03,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-11-23 03:19:03,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-11-23 03:19:03,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-11-23 03:19:03,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-11-23 03:19:03,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-11-23 03:19:03,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-11-23 03:19:03,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-11-23 03:19:03,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-11-23 03:19:03,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-11-23 03:19:03,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-11-23 03:19:03,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-23 03:19:03,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:19:03,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 03:19:04,597 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2022-11-23 03:19:04,597 INFO L899 garLoopResultBuilder]: For program point L25-2(line 25) no Hoare annotation was computed. [2022-11-23 03:19:04,597 INFO L899 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed. [2022-11-23 03:19:04,597 INFO L899 garLoopResultBuilder]: For program point borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-23 03:19:04,598 INFO L899 garLoopResultBuilder]: For program point borFINAL(lines 19 28) no Hoare annotation was computed. [2022-11-23 03:19:04,598 INFO L899 garLoopResultBuilder]: For program point L24-2(lines 24 26) no Hoare annotation was computed. [2022-11-23 03:19:04,598 INFO L899 garLoopResultBuilder]: For program point L24-3(line 24) no Hoare annotation was computed. [2022-11-23 03:19:04,598 INFO L899 garLoopResultBuilder]: For program point borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-23 03:19:04,598 INFO L899 garLoopResultBuilder]: For program point L24-4(line 24) no Hoare annotation was computed. [2022-11-23 03:19:04,598 INFO L895 garLoopResultBuilder]: At program point L24-5(lines 24 26) the Hoare annotation is: (let ((.cse0 (not (<= 2 ~N~0)))) (and (or (not (<= ~N~0 2)) .cse0 (<= bor_~i~0 2)) (or .cse0 (= 1 bor_~i~0) (<= 2 bor_~i~0) (not (<= ~N~0 2147483647))))) [2022-11-23 03:19:04,599 INFO L899 garLoopResultBuilder]: For program point L24-6(lines 24 26) no Hoare annotation was computed. [2022-11-23 03:19:04,599 INFO L902 garLoopResultBuilder]: At program point borENTRY(lines 19 28) the Hoare annotation is: true [2022-11-23 03:19:04,599 INFO L899 garLoopResultBuilder]: For program point borEXIT(lines 19 28) no Hoare annotation was computed. [2022-11-23 03:19:04,599 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2022-11-23 03:19:04,599 INFO L902 garLoopResultBuilder]: At program point L60(lines 30 61) the Hoare annotation is: true [2022-11-23 03:19:04,599 INFO L899 garLoopResultBuilder]: For program point L56(lines 56 58) no Hoare annotation was computed. [2022-11-23 03:19:04,599 INFO L899 garLoopResultBuilder]: For program point L56-2(lines 56 58) no Hoare annotation was computed. [2022-11-23 03:19:04,601 INFO L895 garLoopResultBuilder]: At program point L48(line 48) the Hoare annotation is: (and (<= ~N~0 2147483647) (<= 1 |ULTIMATE.start_main_~i~1#1|) (<= 2 ~N~0)) [2022-11-23 03:19:04,601 INFO L899 garLoopResultBuilder]: For program point L48-1(line 48) no Hoare annotation was computed. [2022-11-23 03:19:04,602 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2022-11-23 03:19:04,603 INFO L899 garLoopResultBuilder]: For program point L40-2(lines 40 43) no Hoare annotation was computed. [2022-11-23 03:19:04,603 INFO L899 garLoopResultBuilder]: For program point L40-3(line 40) no Hoare annotation was computed. [2022-11-23 03:19:04,603 INFO L899 garLoopResultBuilder]: For program point L40-4(line 40) no Hoare annotation was computed. [2022-11-23 03:19:04,603 INFO L895 garLoopResultBuilder]: At program point L40-5(lines 40 43) the Hoare annotation is: (let ((.cse0 (<= ~N~0 2147483647)) (.cse1 (<= 2 ~N~0))) (or (and .cse0 (= |ULTIMATE.start_main_~i~1#1| 0) .cse1) (and .cse0 (<= 1 |ULTIMATE.start_main_~i~1#1|) .cse1))) [2022-11-23 03:19:04,604 INFO L895 garLoopResultBuilder]: At program point L40-6(lines 40 43) the Hoare annotation is: (and (<= ~N~0 2147483647) (<= 1 |ULTIMATE.start_main_~i~1#1|) (<= 2 ~N~0)) [2022-11-23 03:19:04,604 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-23 03:19:04,604 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-11-23 03:19:04,604 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 03:19:04,605 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-23 03:19:04,605 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-23 03:19:04,605 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-11-23 03:19:04,605 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2022-11-23 03:19:04,605 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2022-11-23 03:19:04,606 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 59) no Hoare annotation was computed. [2022-11-23 03:19:04,606 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-11-23 03:19:04,606 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 03:19:04,606 INFO L899 garLoopResultBuilder]: For program point L33-2(lines 33 59) no Hoare annotation was computed. [2022-11-23 03:19:04,606 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-23 03:19:04,608 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (and (<= ~N~0 2147483647) (<= 1 |ULTIMATE.start_main_~i~1#1|) (<= 2 ~N~0)) [2022-11-23 03:19:04,608 INFO L899 garLoopResultBuilder]: For program point L54-1(line 54) no Hoare annotation was computed. [2022-11-23 03:19:04,609 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2022-11-23 03:19:04,609 INFO L899 garLoopResultBuilder]: For program point L50-2(lines 50 52) no Hoare annotation was computed. [2022-11-23 03:19:04,609 INFO L899 garLoopResultBuilder]: For program point L50-4(lines 50 52) no Hoare annotation was computed. [2022-11-23 03:19:04,609 INFO L899 garLoopResultBuilder]: For program point L50-5(line 50) no Hoare annotation was computed. [2022-11-23 03:19:04,609 INFO L899 garLoopResultBuilder]: For program point L50-6(line 50) no Hoare annotation was computed. [2022-11-23 03:19:04,611 INFO L895 garLoopResultBuilder]: At program point L50-7(lines 50 52) the Hoare annotation is: (and (<= ~N~0 2147483647) (<= 0 (+ |ULTIMATE.start_main_~i~2#1| 2147483648)) (<= 1 |ULTIMATE.start_main_~i~1#1|) (<= 2 ~N~0)) [2022-11-23 03:19:04,611 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2022-11-23 03:19:04,611 INFO L899 garLoopResultBuilder]: For program point L50-8(lines 50 52) no Hoare annotation was computed. [2022-11-23 03:19:04,611 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2022-11-23 03:19:04,611 INFO L899 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2022-11-23 03:19:04,612 INFO L899 garLoopResultBuilder]: For program point L51-1(line 51) no Hoare annotation was computed. [2022-11-23 03:19:04,612 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2022-11-23 03:19:04,617 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:19:04,620 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:19:04,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:19:04 BoogieIcfgContainer [2022-11-23 03:19:04,643 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:19:04,644 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:19:04,644 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:19:04,644 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:19:04,645 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:18:52" (3/4) ... [2022-11-23 03:19:04,652 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 03:19:04,660 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bor [2022-11-23 03:19:04,668 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-23 03:19:04,669 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-23 03:19:04,669 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 03:19:04,669 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 03:19:04,669 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 03:19:04,726 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 03:19:04,726 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:19:04,729 INFO L158 Benchmark]: Toolchain (without parser) took 13373.04ms. Allocated memory was 136.3MB in the beginning and 218.1MB in the end (delta: 81.8MB). Free memory was 91.3MB in the beginning and 140.8MB in the end (delta: -49.5MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2022-11-23 03:19:04,729 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 136.3MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:19:04,730 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.35ms. Allocated memory is still 136.3MB. Free memory was 90.9MB in the beginning and 80.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 03:19:04,730 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.27ms. Allocated memory is still 136.3MB. Free memory was 80.1MB in the beginning and 78.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:19:04,730 INFO L158 Benchmark]: Boogie Preprocessor took 35.81ms. Allocated memory is still 136.3MB. Free memory was 78.4MB in the beginning and 77.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:19:04,731 INFO L158 Benchmark]: RCFGBuilder took 564.56ms. Allocated memory was 136.3MB in the beginning and 180.4MB in the end (delta: 44.0MB). Free memory was 77.0MB in the beginning and 148.1MB in the end (delta: -71.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2022-11-23 03:19:04,732 INFO L158 Benchmark]: TraceAbstraction took 12316.67ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 147.0MB in the beginning and 143.9MB in the end (delta: 3.1MB). Peak memory consumption was 125.1MB. Max. memory is 16.1GB. [2022-11-23 03:19:04,733 INFO L158 Benchmark]: Witness Printer took 82.73ms. Allocated memory is still 218.1MB. Free memory was 143.9MB in the beginning and 140.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:19:04,739 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 136.3MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 305.35ms. Allocated memory is still 136.3MB. Free memory was 90.9MB in the beginning and 80.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.27ms. Allocated memory is still 136.3MB. Free memory was 80.1MB in the beginning and 78.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.81ms. Allocated memory is still 136.3MB. Free memory was 78.4MB in the beginning and 77.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 564.56ms. Allocated memory was 136.3MB in the beginning and 180.4MB in the end (delta: 44.0MB). Free memory was 77.0MB in the beginning and 148.1MB in the end (delta: -71.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * TraceAbstraction took 12316.67ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 147.0MB in the beginning and 143.9MB in the end (delta: 3.1MB). Peak memory consumption was 125.1MB. Max. memory is 16.1GB. * Witness Printer took 82.73ms. Allocated memory is still 218.1MB. Free memory was 143.9MB in the beginning and 140.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 52 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 12.1s, OverallIterations: 19, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 794 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 775 mSDsluCounter, 2690 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1962 mSDsCounter, 96 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1042 IncrementalHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 96 mSolverCounterUnsat, 728 mSDtfsCounter, 1042 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 825 GetRequests, 656 SyntacticMatches, 13 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=12, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 19 MinimizatonAttempts, 278 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 44 PreInvPairs, 76 NumberOfFragments, 96 HoareAnnotationTreeSize, 44 FomulaSimplifications, 2637 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 8 FomulaSimplificationsInter, 1650 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 1021 NumberOfCodeBlocks, 930 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 1216 ConstructedInterpolants, 0 QuantifiedInterpolants, 2519 SizeOfPredicates, 26 NumberOfNonLiveVariables, 1700 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 40 InterpolantComputations, 12 PerfectInterpolantSequences, 580/776 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: ((!(N <= 2) || !(2 <= N)) || i <= 2) && (((!(2 <= N) || 1 == i) || 2 <= i) || !(N <= 2147483647)) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((N <= 2147483647 && i == 0) && 2 <= N) || ((N <= 2147483647 && 1 <= i) && 2 <= N) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: ((N <= 2147483647 && 0 <= i + 2147483648) && 1 <= i) && 2 <= N RESULT: Ultimate proved your program to be correct! [2022-11-23 03:19:04,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a812f1-140f-4902-ac80-5ff9ae2c48a1/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE