./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-acceleration/array_3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-acceleration/array_3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 42bdab47928922c9249a376933fe7b7a33d855d426cfe04eb271066ef5c44d0a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:35:38,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:35:38,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:35:38,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:35:38,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:35:38,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:35:38,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:35:38,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:35:38,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:35:38,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:35:38,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:35:38,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:35:38,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:35:38,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:35:38,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:35:38,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:35:38,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:35:38,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:35:38,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:35:38,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:35:38,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:35:38,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:35:38,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:35:38,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:35:38,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:35:38,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:35:38,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:35:38,981 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:35:38,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:35:38,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:35:38,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:35:38,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:35:38,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:35:38,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:35:38,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:35:38,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:35:38,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:35:38,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:35:38,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:35:38,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:35:38,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:35:38,994 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 19:35:39,035 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:35:39,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:35:39,037 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:35:39,037 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:35:39,038 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:35:39,038 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:35:39,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:35:39,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:35:39,040 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:35:39,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:35:39,041 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:35:39,042 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:35:39,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:35:39,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:35:39,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:35:39,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:35:39,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:35:39,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:35:39,044 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 19:35:39,044 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:35:39,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:35:39,045 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:35:39,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:35:39,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:35:39,046 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:35:39,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:35:39,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:35:39,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:35:39,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:35:39,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:35:39,047 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:35:39,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:35:39,048 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:35:39,048 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:35:39,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:35:39,049 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42bdab47928922c9249a376933fe7b7a33d855d426cfe04eb271066ef5c44d0a [2022-11-18 19:35:39,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:35:39,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:35:39,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:35:39,347 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:35:39,348 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:35:39,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/loop-acceleration/array_3-2.i [2022-11-18 19:35:39,424 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/data/042fcd537/001997063910423ca7447669674cbcde/FLAG8217a2b03 [2022-11-18 19:35:39,891 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:35:39,892 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/sv-benchmarks/c/loop-acceleration/array_3-2.i [2022-11-18 19:35:39,898 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/data/042fcd537/001997063910423ca7447669674cbcde/FLAG8217a2b03 [2022-11-18 19:35:39,912 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/data/042fcd537/001997063910423ca7447669674cbcde [2022-11-18 19:35:39,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:35:39,916 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:35:39,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:35:39,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:35:39,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:35:39,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:35:39" (1/1) ... [2022-11-18 19:35:39,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73e74fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:39, skipping insertion in model container [2022-11-18 19:35:39,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:35:39" (1/1) ... [2022-11-18 19:35:39,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:35:39,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:35:40,155 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/sv-benchmarks/c/loop-acceleration/array_3-2.i[809,822] [2022-11-18 19:35:40,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:35:40,179 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:35:40,192 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/sv-benchmarks/c/loop-acceleration/array_3-2.i[809,822] [2022-11-18 19:35:40,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:35:40,211 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:35:40,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:40 WrapperNode [2022-11-18 19:35:40,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:35:40,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:35:40,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:35:40,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:35:40,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:40" (1/1) ... [2022-11-18 19:35:40,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:40" (1/1) ... [2022-11-18 19:35:40,244 INFO L138 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 51 [2022-11-18 19:35:40,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:35:40,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:35:40,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:35:40,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:35:40,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:40" (1/1) ... [2022-11-18 19:35:40,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:40" (1/1) ... [2022-11-18 19:35:40,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:40" (1/1) ... [2022-11-18 19:35:40,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:40" (1/1) ... [2022-11-18 19:35:40,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:40" (1/1) ... [2022-11-18 19:35:40,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:40" (1/1) ... [2022-11-18 19:35:40,264 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:40" (1/1) ... [2022-11-18 19:35:40,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:40" (1/1) ... [2022-11-18 19:35:40,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:35:40,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:35:40,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:35:40,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:35:40,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:40" (1/1) ... [2022-11-18 19:35:40,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:35:40,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:40,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:40,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:35:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:35:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:35:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:35:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:35:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:35:40,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:35:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:35:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:35:40,434 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:35:40,437 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:35:40,597 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:35:40,603 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:35:40,603 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 19:35:40,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:35:40 BoogieIcfgContainer [2022-11-18 19:35:40,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:35:40,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:35:40,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:35:40,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:35:40,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:35:39" (1/3) ... [2022-11-18 19:35:40,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a5b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:35:40, skipping insertion in model container [2022-11-18 19:35:40,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:40" (2/3) ... [2022-11-18 19:35:40,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a5b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:35:40, skipping insertion in model container [2022-11-18 19:35:40,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:35:40" (3/3) ... [2022-11-18 19:35:40,618 INFO L112 eAbstractionObserver]: Analyzing ICFG array_3-2.i [2022-11-18 19:35:40,641 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:35:40,641 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-18 19:35:40,725 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:35:40,735 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;@71896372, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:35:40,735 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-18 19:35:40,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:40,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 19:35:40,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:40,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 19:35:40,750 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 19:35:40,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:40,758 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-11-18 19:35:40,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:40,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901292530] [2022-11-18 19:35:40,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:40,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:41,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:41,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:41,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901292530] [2022-11-18 19:35:41,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901292530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:41,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:41,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:35:41,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206480452] [2022-11-18 19:35:41,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:41,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:35:41,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:41,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:35:41,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:35:41,136 INFO L87 Difference]: Start difference. First operand has 24 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:41,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:41,229 INFO L93 Difference]: Finished difference Result 61 states and 74 transitions. [2022-11-18 19:35:41,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:35:41,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 19:35:41,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:41,241 INFO L225 Difference]: With dead ends: 61 [2022-11-18 19:35:41,241 INFO L226 Difference]: Without dead ends: 29 [2022-11-18 19:35:41,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:35:41,264 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 18 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:41,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 48 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:35:41,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-18 19:35:41,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 21. [2022-11-18 19:35:41,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:41,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-11-18 19:35:41,322 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 5 [2022-11-18 19:35:41,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:41,323 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-11-18 19:35:41,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:41,323 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-11-18 19:35:41,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 19:35:41,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:41,324 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-18 19:35:41,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:35:41,324 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 19:35:41,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:41,325 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-11-18 19:35:41,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:41,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502678142] [2022-11-18 19:35:41,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:41,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:41,498 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:35:41,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:41,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502678142] [2022-11-18 19:35:41,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502678142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:41,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:41,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:35:41,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63954766] [2022-11-18 19:35:41,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:41,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:35:41,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:41,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:35:41,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:35:41,513 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:41,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:41,557 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-11-18 19:35:41,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:35:41,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 19:35:41,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:41,559 INFO L225 Difference]: With dead ends: 29 [2022-11-18 19:35:41,559 INFO L226 Difference]: Without dead ends: 28 [2022-11-18 19:35:41,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:35:41,561 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 13 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:41,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 25 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:35:41,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-18 19:35:41,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2022-11-18 19:35:41,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:41,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-11-18 19:35:41,568 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 9 [2022-11-18 19:35:41,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:41,569 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-11-18 19:35:41,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:41,569 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-11-18 19:35:41,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 19:35:41,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:41,570 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-11-18 19:35:41,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:35:41,571 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 19:35:41,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:41,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-11-18 19:35:41,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:41,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140556647] [2022-11-18 19:35:41,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:41,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:41,676 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:41,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:41,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140556647] [2022-11-18 19:35:41,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140556647] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:35:41,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194872010] [2022-11-18 19:35:41,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:41,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:41,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:41,681 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:35:41,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:35:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:41,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:35:41,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:41,902 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:41,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:35:41,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194872010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:41,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:35:41,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 19:35:41,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436458069] [2022-11-18 19:35:41,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:41,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:35:41,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:41,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:35:41,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:35:41,914 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:42,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:42,042 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-11-18 19:35:42,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:35:42,043 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-18 19:35:42,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:42,045 INFO L225 Difference]: With dead ends: 28 [2022-11-18 19:35:42,046 INFO L226 Difference]: Without dead ends: 27 [2022-11-18 19:35:42,047 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 [2022-11-18 19:35:42,049 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 14 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:42,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 28 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:35:42,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-18 19:35:42,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 16. [2022-11-18 19:35:42,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:42,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-11-18 19:35:42,060 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 10 [2022-11-18 19:35:42,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:42,061 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-11-18 19:35:42,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:42,061 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-11-18 19:35:42,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 19:35:42,062 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:42,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:42,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:42,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:42,269 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 19:35:42,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:42,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1708915218, now seen corresponding path program 1 times [2022-11-18 19:35:42,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:42,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886160721] [2022-11-18 19:35:42,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:42,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:42,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:42,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:42,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886160721] [2022-11-18 19:35:42,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886160721] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:35:42,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058231905] [2022-11-18 19:35:42,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:42,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:42,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:42,413 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:35:42,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:35:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:42,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:35:42,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:42,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:42,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:35:42,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:42,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058231905] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:35:42,572 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:35:42,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 19:35:42,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44397275] [2022-11-18 19:35:42,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:35:42,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:35:42,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:42,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:35:42,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:35:42,584 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:42,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:42,679 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2022-11-18 19:35:42,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:35:42,681 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-18 19:35:42,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:42,683 INFO L225 Difference]: With dead ends: 41 [2022-11-18 19:35:42,684 INFO L226 Difference]: Without dead ends: 32 [2022-11-18 19:35:42,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:35:42,687 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 17 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:42,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 54 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:35:42,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-18 19:35:42,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 24. [2022-11-18 19:35:42,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:42,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-11-18 19:35:42,701 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 13 [2022-11-18 19:35:42,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:42,702 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-11-18 19:35:42,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:42,702 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-11-18 19:35:42,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-18 19:35:42,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:42,704 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:42,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:42,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:42,910 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 19:35:42,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:42,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1607405798, now seen corresponding path program 2 times [2022-11-18 19:35:42,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:42,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186201553] [2022-11-18 19:35:42,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:42,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:42,979 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-18 19:35:42,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:42,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186201553] [2022-11-18 19:35:42,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186201553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:42,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:42,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:35:42,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635510654] [2022-11-18 19:35:42,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:42,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:35:42,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:42,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:35:42,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:35:42,982 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:43,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:43,018 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-11-18 19:35:43,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:35:43,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-18 19:35:43,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:43,019 INFO L225 Difference]: With dead ends: 32 [2022-11-18 19:35:43,020 INFO L226 Difference]: Without dead ends: 30 [2022-11-18 19:35:43,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:35:43,021 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 7 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:43,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 24 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:35:43,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-18 19:35:43,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-18 19:35:43,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 29 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:43,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2022-11-18 19:35:43,025 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 21 [2022-11-18 19:35:43,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:43,025 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2022-11-18 19:35:43,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:43,026 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2022-11-18 19:35:43,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-18 19:35:43,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:43,027 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:43,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:35:43,027 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 19:35:43,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:43,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1868053311, now seen corresponding path program 1 times [2022-11-18 19:35:43,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:43,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888599833] [2022-11-18 19:35:43,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:43,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:43,115 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-18 19:35:43,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:43,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888599833] [2022-11-18 19:35:43,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888599833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:43,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:43,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:35:43,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579088124] [2022-11-18 19:35:43,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:43,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:35:43,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:43,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:35:43,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:35:43,117 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:43,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:43,154 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2022-11-18 19:35:43,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:35:43,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 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 27 [2022-11-18 19:35:43,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:43,155 INFO L225 Difference]: With dead ends: 31 [2022-11-18 19:35:43,155 INFO L226 Difference]: Without dead ends: 30 [2022-11-18 19:35:43,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:35:43,156 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 13 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:43,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 17 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:35:43,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-18 19:35:43,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2022-11-18 19:35:43,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 28 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:43,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2022-11-18 19:35:43,162 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 27 [2022-11-18 19:35:43,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:43,162 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-11-18 19:35:43,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:43,162 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2022-11-18 19:35:43,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 19:35:43,163 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:43,163 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:43,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:35:43,164 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 19:35:43,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:43,165 INFO L85 PathProgramCache]: Analyzing trace with hash 2075077864, now seen corresponding path program 1 times [2022-11-18 19:35:43,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:43,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095893121] [2022-11-18 19:35:43,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:43,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:43,356 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-18 19:35:43,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:43,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095893121] [2022-11-18 19:35:43,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095893121] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:35:43,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099849319] [2022-11-18 19:35:43,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:43,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:43,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:43,358 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:35:43,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:35:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:43,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:35:43,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:43,556 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-18 19:35:43,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:35:43,682 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-18 19:35:43,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099849319] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:35:43,682 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:35:43,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 19:35:43,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549212830] [2022-11-18 19:35:43,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:35:43,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 19:35:43,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:43,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 19:35:43,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 19:35:43,686 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:43,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:43,858 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2022-11-18 19:35:43,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:35:43,858 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 0 states have call successors, (0), 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 28 [2022-11-18 19:35:43,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:43,859 INFO L225 Difference]: With dead ends: 59 [2022-11-18 19:35:43,859 INFO L226 Difference]: Without dead ends: 45 [2022-11-18 19:35:43,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-11-18 19:35:43,861 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 55 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:43,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 33 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:35:43,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-18 19:35:43,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-18 19:35:43,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.0909090909090908) internal successors, (48), 44 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:43,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2022-11-18 19:35:43,867 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 28 [2022-11-18 19:35:43,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:43,867 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2022-11-18 19:35:43,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:43,867 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2022-11-18 19:35:43,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-18 19:35:43,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:43,869 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:43,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:44,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:44,074 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 19:35:44,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:44,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1112936200, now seen corresponding path program 2 times [2022-11-18 19:35:44,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:44,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999023146] [2022-11-18 19:35:44,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:44,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:44,493 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-18 19:35:44,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:44,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999023146] [2022-11-18 19:35:44,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999023146] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:35:44,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096205174] [2022-11-18 19:35:44,494 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:35:44,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:44,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:44,496 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:35:44,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 19:35:44,587 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:35:44,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:35:44,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 19:35:44,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:44,721 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-18 19:35:44,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:35:45,141 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-18 19:35:45,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096205174] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:35:45,142 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:35:45,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 19:35:45,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863452666] [2022-11-18 19:35:45,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:35:45,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 19:35:45,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:45,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 19:35:45,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 19:35:45,145 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:45,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:45,731 INFO L93 Difference]: Finished difference Result 91 states and 104 transitions. [2022-11-18 19:35:45,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-18 19:35:45,733 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-18 19:35:45,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:45,734 INFO L225 Difference]: With dead ends: 91 [2022-11-18 19:35:45,734 INFO L226 Difference]: Without dead ends: 77 [2022-11-18 19:35:45,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2022-11-18 19:35:45,737 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 165 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:45,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 41 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:35:45,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-18 19:35:45,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-11-18 19:35:45,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.0526315789473684) internal successors, (80), 76 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:45,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 80 transitions. [2022-11-18 19:35:45,763 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 80 transitions. Word has length 44 [2022-11-18 19:35:45,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:45,766 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 80 transitions. [2022-11-18 19:35:45,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:45,767 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 80 transitions. [2022-11-18 19:35:45,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-18 19:35:45,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:45,770 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:45,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:45,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:45,979 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 19:35:45,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:45,979 INFO L85 PathProgramCache]: Analyzing trace with hash -945743592, now seen corresponding path program 3 times [2022-11-18 19:35:45,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:45,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15723763] [2022-11-18 19:35:45,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:45,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:47,446 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-18 19:35:47,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:47,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15723763] [2022-11-18 19:35:47,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15723763] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:35:47,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242042110] [2022-11-18 19:35:47,448 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:35:47,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:47,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:47,454 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:35:47,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 19:35:47,547 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 19:35:47,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:35:47,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:35:47,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:47,643 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-11-18 19:35:47,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:35:47,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242042110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:47,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:35:47,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [33] total 35 [2022-11-18 19:35:47,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778027689] [2022-11-18 19:35:47,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:47,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:35:47,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:47,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:35:47,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=897, Unknown=0, NotChecked=0, Total=1190 [2022-11-18 19:35:47,647 INFO L87 Difference]: Start difference. First operand 77 states and 80 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:47,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:47,710 INFO L93 Difference]: Finished difference Result 77 states and 80 transitions. [2022-11-18 19:35:47,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:35:47,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-18 19:35:47,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:47,712 INFO L225 Difference]: With dead ends: 77 [2022-11-18 19:35:47,712 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 19:35:47,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=963, Unknown=0, NotChecked=0, Total=1260 [2022-11-18 19:35:47,713 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14 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 [2022-11-18 19:35:47,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 14 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:35:47,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 19:35:47,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 19:35:47,715 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) [2022-11-18 19:35:47,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 19:35:47,715 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2022-11-18 19:35:47,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:47,716 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:35:47,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:47,716 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 19:35:47,716 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 19:35:47,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-18 19:35:47,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-18 19:35:47,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-18 19:35:47,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-18 19:35:47,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:47,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-18 19:35:47,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 19:35:47,966 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-11-18 19:35:47,966 INFO L899 garLoopResultBuilder]: For program point L23-2(lines 23 25) no Hoare annotation was computed. [2022-11-18 19:35:47,966 INFO L899 garLoopResultBuilder]: For program point L23-3(line 23) no Hoare annotation was computed. [2022-11-18 19:35:47,967 INFO L899 garLoopResultBuilder]: For program point L23-4(line 23) no Hoare annotation was computed. [2022-11-18 19:35:47,967 INFO L895 garLoopResultBuilder]: At program point L23-5(lines 23 25) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (<= 1 |ULTIMATE.start_main_~i~0#1|)) [2022-11-18 19:35:47,967 INFO L899 garLoopResultBuilder]: For program point L23-6(lines 23 25) no Hoare annotation was computed. [2022-11-18 19:35:47,967 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-11-18 19:35:47,967 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 19:35:47,967 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-18 19:35:47,968 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 19:35:47,968 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 19:35:47,968 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 29) no Hoare annotation was computed. [2022-11-18 19:35:47,968 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-18 19:35:47,968 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 19:35:47,968 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-11-18 19:35:47,968 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2022-11-18 19:35:47,969 INFO L899 garLoopResultBuilder]: For program point L26-3(lines 26 27) no Hoare annotation was computed. [2022-11-18 19:35:47,969 INFO L899 garLoopResultBuilder]: For program point L26-5(lines 26 27) no Hoare annotation was computed. [2022-11-18 19:35:47,969 INFO L899 garLoopResultBuilder]: For program point L26-6(line 26) no Hoare annotation was computed. [2022-11-18 19:35:47,969 INFO L899 garLoopResultBuilder]: For program point L26-7(line 26) no Hoare annotation was computed. [2022-11-18 19:35:47,969 INFO L895 garLoopResultBuilder]: At program point L26-8(lines 26 27) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) [2022-11-18 19:35:47,969 INFO L899 garLoopResultBuilder]: For program point L26-9(lines 26 27) no Hoare annotation was computed. [2022-11-18 19:35:47,970 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2022-11-18 19:35:47,970 INFO L902 garLoopResultBuilder]: At program point L14-2(lines 13 18) the Hoare annotation is: true [2022-11-18 19:35:47,973 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1] [2022-11-18 19:35:47,976 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:35:47,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:35:47 BoogieIcfgContainer [2022-11-18 19:35:47,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:35:47,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:35:47,995 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:35:47,995 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:35:47,996 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:35:40" (3/4) ... [2022-11-18 19:35:47,999 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 19:35:48,010 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-18 19:35:48,011 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 19:35:48,011 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 19:35:48,011 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:35:48,046 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:35:48,047 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:35:48,048 INFO L158 Benchmark]: Toolchain (without parser) took 8131.57ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 95.3MB in the beginning and 129.4MB in the end (delta: -34.2MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2022-11-18 19:35:48,048 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 132.1MB. Free memory was 102.5MB in the beginning and 102.5MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:35:48,049 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.61ms. Allocated memory is still 132.1MB. Free memory was 94.8MB in the beginning and 105.3MB in the end (delta: -10.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-18 19:35:48,049 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.87ms. Allocated memory is still 132.1MB. Free memory was 105.3MB in the beginning and 103.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:35:48,050 INFO L158 Benchmark]: Boogie Preprocessor took 22.06ms. Allocated memory is still 132.1MB. Free memory was 103.7MB in the beginning and 102.7MB in the end (delta: 912.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:35:48,050 INFO L158 Benchmark]: RCFGBuilder took 338.25ms. Allocated memory is still 132.1MB. Free memory was 102.7MB in the beginning and 92.0MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:35:48,051 INFO L158 Benchmark]: TraceAbstraction took 7386.50ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 91.1MB in the beginning and 131.5MB in the end (delta: -40.5MB). Peak memory consumption was 306.2kB. Max. memory is 16.1GB. [2022-11-18 19:35:48,052 INFO L158 Benchmark]: Witness Printer took 52.46ms. Allocated memory is still 172.0MB. Free memory was 131.5MB in the beginning and 129.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:35:48,055 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 132.1MB. Free memory was 102.5MB in the beginning and 102.5MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.61ms. Allocated memory is still 132.1MB. Free memory was 94.8MB in the beginning and 105.3MB in the end (delta: -10.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.87ms. Allocated memory is still 132.1MB. Free memory was 105.3MB in the beginning and 103.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.06ms. Allocated memory is still 132.1MB. Free memory was 103.7MB in the beginning and 102.7MB in the end (delta: 912.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 338.25ms. Allocated memory is still 132.1MB. Free memory was 102.7MB in the beginning and 92.0MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7386.50ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 91.1MB in the beginning and 131.5MB in the end (delta: -40.5MB). Peak memory consumption was 306.2kB. Max. memory is 16.1GB. * Witness Printer took 52.46ms. Allocated memory is still 172.0MB. Free memory was 131.5MB in the beginning and 129.4MB in the end (delta: 2.1MB). 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: 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 1 procedures, 24 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 7.3s, OverallIterations: 9, TraceHistogramMax: 15, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 309 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 309 mSDsluCounter, 284 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 194 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 395 IncrementalHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 90 mSDtfsCounter, 395 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 361 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 871 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=8, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 36 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 22 NumberOfFragments, 13 HoareAnnotationTreeSize, 3 FomulaSimplifications, 211 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 404 NumberOfCodeBlocks, 348 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 472 ConstructedInterpolants, 0 QuantifiedInterpolants, 963 SizeOfPredicates, 14 NumberOfNonLiveVariables, 442 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 17 InterpolantComputations, 6 PerfectInterpolantSequences, 525/1285 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 4 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-18 19:35:48,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d1752-f99f-4f33-ae4b-4bcd8dcb0344/bin/uautomizer-TMbwUNV5ro/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