./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-linkedlists/cll_by_lseg-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-memory-linkedlists/cll_by_lseg-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash de7b6b08db65388ab09a4594226fbc2a49bc8d65ecd2b95d922fabd4f3caf1d7 --- 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-2329fc7 [2022-12-13 14:19:29,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:19:29,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:19:29,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:19:29,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:19:29,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:19:29,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:19:29,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:19:29,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:19:29,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:19:29,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:19:29,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:19:29,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:19:29,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:19:29,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:19:29,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:19:29,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:19:29,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:19:29,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:19:29,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:19:29,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:19:29,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:19:29,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:19:29,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:19:29,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:19:29,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:19:29,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:19:29,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:19:29,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:19:29,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:19:29,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:19:29,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:19:29,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:19:29,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:19:29,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:19:29,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:19:29,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:19:29,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:19:29,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:19:29,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:19:29,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:19:29,630 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 14:19:29,648 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:19:29,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:19:29,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:19:29,649 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:19:29,649 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:19:29,649 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:19:29,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:19:29,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:19:29,650 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:19:29,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:19:29,651 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:19:29,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:19:29,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:19:29,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:19:29,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:19:29,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:19:29,652 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 14:19:29,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:19:29,652 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:19:29,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:19:29,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:19:29,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:19:29,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:19:29,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:19:29,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:19:29,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:19:29,653 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:19:29,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:19:29,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:19:29,665 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:19:29,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:19:29,665 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:19:29,665 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:19:29,666 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:19:29,666 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de7b6b08db65388ab09a4594226fbc2a49bc8d65ecd2b95d922fabd4f3caf1d7 [2022-12-13 14:19:29,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:19:29,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:19:29,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:19:29,842 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:19:29,843 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:19:29,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-memory-linkedlists/cll_by_lseg-alloca-1.i [2022-12-13 14:19:32,495 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:19:32,643 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:19:32,644 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/sv-benchmarks/c/termination-memory-linkedlists/cll_by_lseg-alloca-1.i [2022-12-13 14:19:32,653 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/data/a1fdb6205/5e46a14566ed4da49b05b1b3362e4455/FLAG4f4ab4df1 [2022-12-13 14:19:32,664 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/data/a1fdb6205/5e46a14566ed4da49b05b1b3362e4455 [2022-12-13 14:19:32,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:19:32,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:19:32,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:19:32,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:19:32,674 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:19:32,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:19:32" (1/1) ... [2022-12-13 14:19:32,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70aa33a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:19:32, skipping insertion in model container [2022-12-13 14:19:32,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:19:32" (1/1) ... [2022-12-13 14:19:32,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:19:32,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:19:32,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:19:32,885 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:19:32,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:19:32,926 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:19:32,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:19:32 WrapperNode [2022-12-13 14:19:32,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:19:32,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:19:32,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:19:32,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:19:32,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:19:32" (1/1) ... [2022-12-13 14:19:32,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:19:32" (1/1) ... [2022-12-13 14:19:32,954 INFO L138 Inliner]: procedures = 115, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2022-12-13 14:19:32,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:19:32,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:19:32,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:19:32,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:19:32,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:19:32" (1/1) ... [2022-12-13 14:19:32,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:19:32" (1/1) ... [2022-12-13 14:19:32,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:19:32" (1/1) ... [2022-12-13 14:19:32,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:19:32" (1/1) ... [2022-12-13 14:19:32,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:19:32" (1/1) ... [2022-12-13 14:19:32,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:19:32" (1/1) ... [2022-12-13 14:19:32,984 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:19:32" (1/1) ... [2022-12-13 14:19:32,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:19:32" (1/1) ... [2022-12-13 14:19:32,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:19:32,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:19:32,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:19:32,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:19:32,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:19:32" (1/1) ... [2022-12-13 14:19:32,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:19:33,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:19:33,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:19:33,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:19:33,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 14:19:33,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 14:19:33,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 14:19:33,047 INFO L130 BoogieDeclarations]: Found specification of procedure new_lseg [2022-12-13 14:19:33,048 INFO L138 BoogieDeclarations]: Found implementation of procedure new_lseg [2022-12-13 14:19:33,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:19:33,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:19:33,115 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:19:33,117 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:19:33,228 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:19:33,234 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:19:33,235 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:19:33,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:19:33 BoogieIcfgContainer [2022-12-13 14:19:33,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:19:33,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:19:33,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:19:33,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:19:33,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:19:32" (1/3) ... [2022-12-13 14:19:33,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@885ad38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:19:33, skipping insertion in model container [2022-12-13 14:19:33,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:19:32" (2/3) ... [2022-12-13 14:19:33,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@885ad38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:19:33, skipping insertion in model container [2022-12-13 14:19:33,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:19:33" (3/3) ... [2022-12-13 14:19:33,243 INFO L112 eAbstractionObserver]: Analyzing ICFG cll_by_lseg-alloca-1.i [2022-12-13 14:19:33,257 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:19:33,257 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 14:19:33,293 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:19:33,298 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;@a84bcac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:19:33,298 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 14:19:33,302 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 18 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:19:33,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-13 14:19:33,306 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:19:33,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-13 14:19:33,307 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:19:33,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:19:33,311 INFO L85 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2022-12-13 14:19:33,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:19:33,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577091363] [2022-12-13 14:19:33,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:19:33,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:19:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:19:33,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:19:33,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:19:33,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577091363] [2022-12-13 14:19:33,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577091363] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:19:33,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:19:33,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:19:33,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083569292] [2022-12-13 14:19:33,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:19:33,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:19:33,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:19:33,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:19:33,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:19:33,501 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 18 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:33,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:19:33,538 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-12-13 14:19:33,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:19:33,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-12-13 14:19:33,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:19:33,548 INFO L225 Difference]: With dead ends: 22 [2022-12-13 14:19:33,548 INFO L226 Difference]: Without dead ends: 12 [2022-12-13 14:19:33,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:19:33,554 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:19:33,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 31 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:19:33,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-12-13 14:19:33,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-12-13 14:19:33,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.25) internal successors, (10), 10 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:33,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-12-13 14:19:33,585 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 3 [2022-12-13 14:19:33,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:19:33,585 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-12-13 14:19:33,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:33,585 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-12-13 14:19:33,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 14:19:33,586 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:19:33,586 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:19:33,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:19:33,587 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:19:33,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:19:33,587 INFO L85 PathProgramCache]: Analyzing trace with hash 88399226, now seen corresponding path program 1 times [2022-12-13 14:19:33,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:19:33,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825353482] [2022-12-13 14:19:33,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:19:33,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:19:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:19:33,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:19:33,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:19:33,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825353482] [2022-12-13 14:19:33,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825353482] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:19:33,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:19:33,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:19:33,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515879615] [2022-12-13 14:19:33,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:19:33,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:19:33,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:19:33,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:19:33,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:19:33,686 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:33,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:19:33,722 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-12-13 14:19:33,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:19:33,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-13 14:19:33,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:19:33,723 INFO L225 Difference]: With dead ends: 19 [2022-12-13 14:19:33,723 INFO L226 Difference]: Without dead ends: 18 [2022-12-13 14:19:33,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:19:33,724 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:19:33,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 16 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:19:33,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-13 14:19:33,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2022-12-13 14:19:33,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:33,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-12-13 14:19:33,728 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-12-13 14:19:33,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:19:33,728 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-12-13 14:19:33,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:33,728 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-12-13 14:19:33,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 14:19:33,728 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:19:33,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:19:33,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:19:33,729 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting new_lsegErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:19:33,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:19:33,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1554591238, now seen corresponding path program 1 times [2022-12-13 14:19:33,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:19:33,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945787407] [2022-12-13 14:19:33,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:19:33,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:19:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:19:33,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:19:33,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:19:33,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945787407] [2022-12-13 14:19:33,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945787407] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:19:33,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:19:33,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:19:33,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435535898] [2022-12-13 14:19:33,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:19:33,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:19:33,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:19:33,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:19:33,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:19:33,804 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:33,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:19:33,830 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-12-13 14:19:33,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:19:33,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-13 14:19:33,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:19:33,831 INFO L225 Difference]: With dead ends: 15 [2022-12-13 14:19:33,831 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 14:19:33,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:19:33,832 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:19:33,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 9 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:19:33,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 14:19:33,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 14:19:33,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:33,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-12-13 14:19:33,835 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 9 [2022-12-13 14:19:33,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:19:33,835 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-12-13 14:19:33,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:33,836 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-12-13 14:19:33,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 14:19:33,836 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:19:33,836 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:19:33,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 14:19:33,836 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:19:33,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:19:33,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1755034194, now seen corresponding path program 1 times [2022-12-13 14:19:33,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:19:33,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066489044] [2022-12-13 14:19:33,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:19:33,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:19:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:19:33,934 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:19:33,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:19:33,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066489044] [2022-12-13 14:19:33,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066489044] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:19:33,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403367925] [2022-12-13 14:19:33,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:19:33,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:19:33,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:19:33,937 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:19:33,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 14:19:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:19:34,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 14:19:34,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:19:34,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:19:34,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:19:34,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:19:34,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403367925] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:19:34,139 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:19:34,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-12-13 14:19:34,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47553389] [2022-12-13 14:19:34,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:19:34,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 14:19:34,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:19:34,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 14:19:34,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-12-13 14:19:34,141 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 13 states, 12 states have (on average 2.0) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:34,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:19:34,234 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-12-13 14:19:34,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 14:19:34,235 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.0) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-13 14:19:34,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:19:34,235 INFO L225 Difference]: With dead ends: 32 [2022-12-13 14:19:34,235 INFO L226 Difference]: Without dead ends: 31 [2022-12-13 14:19:34,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-12-13 14:19:34,236 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 33 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:19:34,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 19 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:19:34,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-12-13 14:19:34,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2022-12-13 14:19:34,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:34,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2022-12-13 14:19:34,241 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 13 [2022-12-13 14:19:34,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:19:34,242 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2022-12-13 14:19:34,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.0) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:34,242 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2022-12-13 14:19:34,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-13 14:19:34,242 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:19:34,242 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2022-12-13 14:19:34,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 14:19:34,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:19:34,445 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:19:34,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:19:34,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1428013446, now seen corresponding path program 2 times [2022-12-13 14:19:34,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:19:34,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061844936] [2022-12-13 14:19:34,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:19:34,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:19:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:19:34,767 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:19:34,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:19:34,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061844936] [2022-12-13 14:19:34,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061844936] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:19:34,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427888496] [2022-12-13 14:19:34,768 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 14:19:34,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:19:34,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:19:34,769 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:19:34,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 14:19:34,853 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 14:19:34,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:19:34,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 14:19:34,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:19:34,912 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:19:34,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:19:35,053 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:19:35,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427888496] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:19:35,053 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:19:35,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2022-12-13 14:19:35,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033310442] [2022-12-13 14:19:35,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:19:35,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-13 14:19:35,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:19:35,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-13 14:19:35,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2022-12-13 14:19:35,056 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 25 states, 24 states have (on average 2.0) internal successors, (48), 15 states have internal predecessors, (48), 11 states have call successors, (11), 10 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:35,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:19:35,258 INFO L93 Difference]: Finished difference Result 62 states and 67 transitions. [2022-12-13 14:19:35,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 14:19:35,259 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.0) internal successors, (48), 15 states have internal predecessors, (48), 11 states have call successors, (11), 10 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-12-13 14:19:35,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:19:35,260 INFO L225 Difference]: With dead ends: 62 [2022-12-13 14:19:35,260 INFO L226 Difference]: Without dead ends: 61 [2022-12-13 14:19:35,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=315, Invalid=875, Unknown=0, NotChecked=0, Total=1190 [2022-12-13 14:19:35,262 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 81 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:19:35,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 25 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:19:35,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-12-13 14:19:35,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2022-12-13 14:19:35,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 47 states have (on average 1.0212765957446808) internal successors, (48), 47 states have internal predecessors, (48), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:35,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2022-12-13 14:19:35,285 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 28 [2022-12-13 14:19:35,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:19:35,285 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2022-12-13 14:19:35,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.0) internal successors, (48), 15 states have internal predecessors, (48), 11 states have call successors, (11), 10 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:35,286 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2022-12-13 14:19:35,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-13 14:19:35,287 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:19:35,287 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2022-12-13 14:19:35,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 14:19:35,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:19:35,490 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:19:35,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:19:35,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1912823814, now seen corresponding path program 3 times [2022-12-13 14:19:35,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:19:35,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970221614] [2022-12-13 14:19:35,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:19:35,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:19:35,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:19:36,095 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:19:36,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:19:36,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970221614] [2022-12-13 14:19:36,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970221614] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:19:36,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320948514] [2022-12-13 14:19:36,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 14:19:36,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:19:36,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:19:36,097 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:19:36,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 14:19:38,174 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-12-13 14:19:38,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:19:38,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-13 14:19:38,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:19:38,273 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:19:38,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:19:38,642 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:19:38,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320948514] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:19:38,642 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:19:38,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2022-12-13 14:19:38,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883196330] [2022-12-13 14:19:38,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:19:38,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-12-13 14:19:38,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:19:38,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-12-13 14:19:38,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=560, Invalid=1792, Unknown=0, NotChecked=0, Total=2352 [2022-12-13 14:19:38,646 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand has 49 states, 48 states have (on average 2.0) internal successors, (96), 27 states have internal predecessors, (96), 23 states have call successors, (23), 22 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:39,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:19:39,137 INFO L93 Difference]: Finished difference Result 122 states and 133 transitions. [2022-12-13 14:19:39,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-13 14:19:39,138 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 2.0) internal successors, (96), 27 states have internal predecessors, (96), 23 states have call successors, (23), 22 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-12-13 14:19:39,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:19:39,139 INFO L225 Difference]: With dead ends: 122 [2022-12-13 14:19:39,139 INFO L226 Difference]: Without dead ends: 121 [2022-12-13 14:19:39,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 966 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1341, Invalid=3629, Unknown=0, NotChecked=0, Total=4970 [2022-12-13 14:19:39,142 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 213 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:19:39,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 36 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 14:19:39,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-12-13 14:19:39,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2022-12-13 14:19:39,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 95 states have (on average 1.0105263157894737) internal successors, (96), 95 states have internal predecessors, (96), 23 states have call successors, (23), 23 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:39,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 119 transitions. [2022-12-13 14:19:39,159 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 119 transitions. Word has length 58 [2022-12-13 14:19:39,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:19:39,159 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 119 transitions. [2022-12-13 14:19:39,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 2.0) internal successors, (96), 27 states have internal predecessors, (96), 23 states have call successors, (23), 22 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:39,160 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 119 transitions. [2022-12-13 14:19:39,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-13 14:19:39,162 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:19:39,163 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2022-12-13 14:19:39,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 14:19:39,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:19:39,364 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:19:39,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:19:39,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1399422214, now seen corresponding path program 4 times [2022-12-13 14:19:39,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:19:39,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226936104] [2022-12-13 14:19:39,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:19:39,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:19:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:19:41,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:19:41,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:19:41,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226936104] [2022-12-13 14:19:41,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226936104] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:19:41,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024566468] [2022-12-13 14:19:41,032 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 14:19:41,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:19:41,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:19:41,033 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:19:41,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 14:19:41,247 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 14:19:41,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:19:41,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 49 conjunts are in the unsatisfiable core [2022-12-13 14:19:41,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:19:41,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:19:41,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:19:42,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:19:42,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024566468] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:19:42,743 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:19:42,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 96 [2022-12-13 14:19:42,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84037112] [2022-12-13 14:19:42,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:19:42,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-12-13 14:19:42,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:19:42,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-12-13 14:19:42,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2264, Invalid=7048, Unknown=0, NotChecked=0, Total=9312 [2022-12-13 14:19:42,748 INFO L87 Difference]: Start difference. First operand 119 states and 119 transitions. Second operand has 97 states, 96 states have (on average 2.0) internal successors, (192), 51 states have internal predecessors, (192), 47 states have call successors, (47), 46 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:43,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:19:43,967 INFO L93 Difference]: Finished difference Result 242 states and 265 transitions. [2022-12-13 14:19:43,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-12-13 14:19:43,968 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 96 states have (on average 2.0) internal successors, (192), 51 states have internal predecessors, (192), 47 states have call successors, (47), 46 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-12-13 14:19:43,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:19:43,969 INFO L225 Difference]: With dead ends: 242 [2022-12-13 14:19:43,969 INFO L226 Difference]: Without dead ends: 241 [2022-12-13 14:19:43,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4230 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=5553, Invalid=14753, Unknown=0, NotChecked=0, Total=20306 [2022-12-13 14:19:43,972 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 701 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:19:43,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 28 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 14:19:43,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-12-13 14:19:43,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 239. [2022-12-13 14:19:43,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 191 states have (on average 1.0052356020942408) internal successors, (192), 191 states have internal predecessors, (192), 47 states have call successors, (47), 47 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:43,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 239 transitions. [2022-12-13 14:19:43,988 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 239 transitions. Word has length 118 [2022-12-13 14:19:43,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:19:43,988 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 239 transitions. [2022-12-13 14:19:43,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 96 states have (on average 2.0) internal successors, (192), 51 states have internal predecessors, (192), 47 states have call successors, (47), 46 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:19:43,988 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 239 transitions. [2022-12-13 14:19:43,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-12-13 14:19:43,991 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:19:43,991 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1, 1, 1] [2022-12-13 14:19:43,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 14:19:44,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-13 14:19:44,193 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:19:44,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:19:44,194 INFO L85 PathProgramCache]: Analyzing trace with hash -268515078, now seen corresponding path program 5 times [2022-12-13 14:19:44,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:19:44,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004876069] [2022-12-13 14:19:44,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:19:44,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:19:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:19:48,754 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:19:48,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:19:48,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004876069] [2022-12-13 14:19:48,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004876069] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:19:48,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76103930] [2022-12-13 14:19:48,754 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 14:19:48,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:19:48,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:19:48,755 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:19:48,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 14:27:45,830 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-12-13 14:27:45,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:27:45,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 2341 conjuncts, 97 conjunts are in the unsatisfiable core [2022-12-13 14:27:45,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:27:46,248 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:27:46,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:27:51,081 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:27:51,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76103930] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:27:51,082 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:27:51,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 192 [2022-12-13 14:27:51,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005988127] [2022-12-13 14:27:51,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:27:51,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 193 states [2022-12-13 14:27:51,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:27:51,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 193 interpolants. [2022-12-13 14:27:51,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9128, Invalid=27928, Unknown=0, NotChecked=0, Total=37056 [2022-12-13 14:27:51,089 INFO L87 Difference]: Start difference. First operand 239 states and 239 transitions. Second operand has 193 states, 192 states have (on average 2.0) internal successors, (384), 99 states have internal predecessors, (384), 95 states have call successors, (95), 94 states have call predecessors, (95), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:27:56,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:27:56,481 INFO L93 Difference]: Finished difference Result 482 states and 529 transitions. [2022-12-13 14:27:56,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-12-13 14:27:56,482 INFO L78 Accepts]: Start accepts. Automaton has has 193 states, 192 states have (on average 2.0) internal successors, (384), 99 states have internal predecessors, (384), 95 states have call successors, (95), 94 states have call predecessors, (95), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2022-12-13 14:27:56,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:27:56,485 INFO L225 Difference]: With dead ends: 482 [2022-12-13 14:27:56,486 INFO L226 Difference]: Without dead ends: 481 [2022-12-13 14:27:56,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 285 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17670 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=22617, Invalid=59465, Unknown=0, NotChecked=0, Total=82082 [2022-12-13 14:27:56,491 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1545 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1545 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 14:27:56,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1545 Valid, 30 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 14:27:56,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-12-13 14:27:56,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 479. [2022-12-13 14:27:56,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 383 states have (on average 1.0026109660574412) internal successors, (384), 383 states have internal predecessors, (384), 95 states have call successors, (95), 95 states have call predecessors, (95), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:27:56,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 479 transitions. [2022-12-13 14:27:56,518 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 479 transitions. Word has length 238 [2022-12-13 14:27:56,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:27:56,518 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 479 transitions. [2022-12-13 14:27:56,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 193 states, 192 states have (on average 2.0) internal successors, (384), 99 states have internal predecessors, (384), 95 states have call successors, (95), 94 states have call predecessors, (95), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:27:56,519 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 479 transitions. [2022-12-13 14:27:56,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2022-12-13 14:27:56,526 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:27:56,526 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 1, 1, 1, 1, 1, 1] [2022-12-13 14:27:56,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 14:27:56,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:27:56,728 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, new_lsegErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:27:56,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:27:56,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1688294650, now seen corresponding path program 6 times [2022-12-13 14:27:56,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:27:56,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142179932] [2022-12-13 14:27:56,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:27:56,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:27:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:28:15,578 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:28:15,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:28:15,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142179932] [2022-12-13 14:28:15,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142179932] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:28:15,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452315736] [2022-12-13 14:28:15,579 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 14:28:15,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:28:15,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:28:15,580 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:28:15,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bf8333-feea-4128-9010-c48f53be6370/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process