./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/memsafety-ext2/split_list_test05-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/memsafety-ext2/split_list_test05-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash db322df1d89bf1549765f136e3e3b8000484c0c3108c31998992cf725d6dcc20 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:51:49,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:51:49,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:51:49,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:51:49,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:51:49,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:51:49,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:51:49,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:51:49,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:51:49,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:51:49,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:51:49,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:51:49,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:51:49,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:51:49,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:51:49,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:51:49,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:51:49,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:51:49,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:51:49,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:51:49,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:51:49,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:51:49,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:51:49,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:51:49,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:51:49,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:51:49,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:51:49,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:51:49,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:51:49,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:51:49,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:51:49,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:51:49,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:51:49,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:51:49,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:51:49,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:51:49,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:51:49,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:51:49,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:51:49,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:51:49,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:51:49,460 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:51:49,492 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:51:49,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:51:49,493 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:51:49,494 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:51:49,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:51:49,495 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:51:49,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:51:49,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:51:49,496 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:51:49,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:51:49,497 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:51:49,497 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:51:49,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:51:49,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:51:49,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:51:49,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:51:49,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:51:49,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:51:49,499 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:51:49,499 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:51:49,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:51:49,499 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:51:49,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:51:49,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:51:49,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:51:49,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:51:49,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:51:49,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:51:49,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:51:49,502 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:51:49,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:51:49,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:51:49,502 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:51:49,503 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:51:49,503 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:51:49,503 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db322df1d89bf1549765f136e3e3b8000484c0c3108c31998992cf725d6dcc20 [2022-11-18 20:51:49,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:51:49,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:51:49,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:51:49,870 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:51:49,871 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:51:49,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/memsafety-ext2/split_list_test05-2.i [2022-11-18 20:51:49,957 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/data/47648058d/9747a4337a4f437cb3851d7a78feab22/FLAG565dfaf08 [2022-11-18 20:51:50,613 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:51:50,613 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/sv-benchmarks/c/memsafety-ext2/split_list_test05-2.i [2022-11-18 20:51:50,645 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/data/47648058d/9747a4337a4f437cb3851d7a78feab22/FLAG565dfaf08 [2022-11-18 20:51:50,865 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/data/47648058d/9747a4337a4f437cb3851d7a78feab22 [2022-11-18 20:51:50,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:51:50,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:51:50,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:51:50,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:51:50,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:51:50,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:51:50" (1/1) ... [2022-11-18 20:51:50,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ea805ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:50, skipping insertion in model container [2022-11-18 20:51:50,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:51:50" (1/1) ... [2022-11-18 20:51:50,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:51:50,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:51:51,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:51:51,361 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:51:51,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:51:51,438 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:51:51,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:51 WrapperNode [2022-11-18 20:51:51,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:51:51,439 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:51:51,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:51:51,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:51:51,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:51" (1/1) ... [2022-11-18 20:51:51,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:51" (1/1) ... [2022-11-18 20:51:51,493 INFO L138 Inliner]: procedures = 125, calls = 95, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 288 [2022-11-18 20:51:51,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:51:51,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:51:51,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:51:51,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:51:51,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:51" (1/1) ... [2022-11-18 20:51:51,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:51" (1/1) ... [2022-11-18 20:51:51,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:51" (1/1) ... [2022-11-18 20:51:51,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:51" (1/1) ... [2022-11-18 20:51:51,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:51" (1/1) ... [2022-11-18 20:51:51,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:51" (1/1) ... [2022-11-18 20:51:51,533 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:51" (1/1) ... [2022-11-18 20:51:51,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:51" (1/1) ... [2022-11-18 20:51:51,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:51:51,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:51:51,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:51:51,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:51:51,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:51" (1/1) ... [2022-11-18 20:51:51,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:51:51,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:51:51,573 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:51:51,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:51:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:51:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:51:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:51:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:51:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:51:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:51:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:51:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:51:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:51:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:51:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure append [2022-11-18 20:51:51,634 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2022-11-18 20:51:51,832 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:51:51,849 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:51:52,409 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:51:52,415 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:51:52,416 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-18 20:51:52,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:51:52 BoogieIcfgContainer [2022-11-18 20:51:52,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:51:52,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:51:52,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:51:52,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:51:52,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:51:50" (1/3) ... [2022-11-18 20:51:52,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ba96a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:51:52, skipping insertion in model container [2022-11-18 20:51:52,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:51" (2/3) ... [2022-11-18 20:51:52,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ba96a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:51:52, skipping insertion in model container [2022-11-18 20:51:52,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:51:52" (3/3) ... [2022-11-18 20:51:52,436 INFO L112 eAbstractionObserver]: Analyzing ICFG split_list_test05-2.i [2022-11-18 20:51:52,456 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:51:52,456 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-18 20:51:52,542 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:51:52,555 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;@7412efe4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:51:52,556 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-18 20:51:52,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 59 states have (on average 1.6440677966101696) internal successors, (97), 65 states have internal predecessors, (97), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 20:51:52,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-18 20:51:52,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:51:52,579 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:51:52,580 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:51:52,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:51:52,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1196025228, now seen corresponding path program 1 times [2022-11-18 20:51:52,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:51:52,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352035038] [2022-11-18 20:51:52,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:52,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:51:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:53,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:51:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:53,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:51:53,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:53,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:51:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:53,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:51:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:53,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-18 20:51:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:53,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 20:51:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:53,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:51:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:53,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-18 20:51:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:53,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 20:51:53,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:53,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:51:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:53,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:51:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:53,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:51:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:53,751 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2022-11-18 20:51:53,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:51:53,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352035038] [2022-11-18 20:51:53,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352035038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:51:53,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:51:53,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:51:53,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547985388] [2022-11-18 20:51:53,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:51:53,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:51:53,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:51:53,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:51:53,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:51:53,801 INFO L87 Difference]: Start difference. First operand has 80 states, 59 states have (on average 1.6440677966101696) internal successors, (97), 65 states have internal predecessors, (97), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-18 20:51:54,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:51:54,003 INFO L93 Difference]: Finished difference Result 158 states and 252 transitions. [2022-11-18 20:51:54,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:51:54,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 83 [2022-11-18 20:51:54,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:51:54,019 INFO L225 Difference]: With dead ends: 158 [2022-11-18 20:51:54,019 INFO L226 Difference]: Without dead ends: 75 [2022-11-18 20:51:54,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:51:54,029 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:51:54,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 191 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:51:54,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-18 20:51:54,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-11-18 20:51:54,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 55 states have (on average 1.4545454545454546) internal successors, (80), 60 states have internal predecessors, (80), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 20:51:54,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 110 transitions. [2022-11-18 20:51:54,102 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 110 transitions. Word has length 83 [2022-11-18 20:51:54,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:51:54,103 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 110 transitions. [2022-11-18 20:51:54,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-18 20:51:54,103 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 110 transitions. [2022-11-18 20:51:54,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-18 20:51:54,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:51:54,111 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:51:54,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:51:54,114 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:51:54,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:51:54,114 INFO L85 PathProgramCache]: Analyzing trace with hash 415076936, now seen corresponding path program 1 times [2022-11-18 20:51:54,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:51:54,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845843980] [2022-11-18 20:51:54,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:54,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:51:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:51:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:51:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:51:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:51:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:51:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:51:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 20:51:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:51:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:51:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:51:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:51:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:51:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:51:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 20:51:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:51:55,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,285 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2022-11-18 20:51:55,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:51:55,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845843980] [2022-11-18 20:51:55,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845843980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:51:55,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:51:55,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:51:55,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691718612] [2022-11-18 20:51:55,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:51:55,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:51:55,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:51:55,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:51:55,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:51:55,291 INFO L87 Difference]: Start difference. First operand 75 states and 110 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:51:55,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:51:55,435 INFO L93 Difference]: Finished difference Result 107 states and 149 transitions. [2022-11-18 20:51:55,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:51:55,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2022-11-18 20:51:55,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:51:55,438 INFO L225 Difference]: With dead ends: 107 [2022-11-18 20:51:55,438 INFO L226 Difference]: Without dead ends: 85 [2022-11-18 20:51:55,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:51:55,441 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 8 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:51:55,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 370 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:51:55,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-18 20:51:55,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 79. [2022-11-18 20:51:55,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 59 states have (on average 1.423728813559322) internal successors, (84), 64 states have internal predecessors, (84), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 20:51:55,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 114 transitions. [2022-11-18 20:51:55,453 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 114 transitions. Word has length 122 [2022-11-18 20:51:55,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:51:55,455 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 114 transitions. [2022-11-18 20:51:55,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:51:55,456 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 114 transitions. [2022-11-18 20:51:55,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-18 20:51:55,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:51:55,458 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:51:55,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:51:55,459 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:51:55,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:51:55,460 INFO L85 PathProgramCache]: Analyzing trace with hash 2146750212, now seen corresponding path program 1 times [2022-11-18 20:51:55,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:51:55,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596174410] [2022-11-18 20:51:55,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:55,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:51:55,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:51:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:51:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:51:55,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:51:55,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:51:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:51:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:55,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 20:51:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:56,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:51:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:56,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:51:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:56,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:51:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:56,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:51:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:56,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:51:56,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:56,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:51:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:56,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 20:51:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:56,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:51:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:56,163 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2022-11-18 20:51:56,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:51:56,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596174410] [2022-11-18 20:51:56,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596174410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:51:56,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:51:56,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:51:56,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556587887] [2022-11-18 20:51:56,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:51:56,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:51:56,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:51:56,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:51:56,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:51:56,167 INFO L87 Difference]: Start difference. First operand 79 states and 114 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:51:56,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:51:56,321 INFO L93 Difference]: Finished difference Result 80 states and 115 transitions. [2022-11-18 20:51:56,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:51:56,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 126 [2022-11-18 20:51:56,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:51:56,327 INFO L225 Difference]: With dead ends: 80 [2022-11-18 20:51:56,327 INFO L226 Difference]: Without dead ends: 79 [2022-11-18 20:51:56,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:51:56,328 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 10 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:51:56,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 360 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:51:56,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-18 20:51:56,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2022-11-18 20:51:56,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 63 states have internal predecessors, (83), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 20:51:56,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 113 transitions. [2022-11-18 20:51:56,352 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 113 transitions. Word has length 126 [2022-11-18 20:51:56,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:51:56,355 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 113 transitions. [2022-11-18 20:51:56,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:51:56,355 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 113 transitions. [2022-11-18 20:51:56,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-18 20:51:56,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:51:56,359 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:51:56,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:51:56,359 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:51:56,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:51:56,360 INFO L85 PathProgramCache]: Analyzing trace with hash 2124747323, now seen corresponding path program 1 times [2022-11-18 20:51:56,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:51:56,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986944440] [2022-11-18 20:51:56,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:56,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:51:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:56,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:51:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:56,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:51:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:56,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:51:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:56,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:51:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:56,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:51:57,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:51:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 20:51:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:51:57,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:51:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:51:57,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:51:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:51:57,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:51:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 20:51:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:51:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,142 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2022-11-18 20:51:57,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:51:57,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986944440] [2022-11-18 20:51:57,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986944440] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:51:57,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:51:57,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:51:57,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720302484] [2022-11-18 20:51:57,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:51:57,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:51:57,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:51:57,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:51:57,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:51:57,146 INFO L87 Difference]: Start difference. First operand 78 states and 113 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:51:57,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:51:57,282 INFO L93 Difference]: Finished difference Result 133 states and 186 transitions. [2022-11-18 20:51:57,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:51:57,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2022-11-18 20:51:57,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:51:57,285 INFO L225 Difference]: With dead ends: 133 [2022-11-18 20:51:57,286 INFO L226 Difference]: Without dead ends: 90 [2022-11-18 20:51:57,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:51:57,297 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 21 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:51:57,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 382 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:51:57,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-18 20:51:57,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 80. [2022-11-18 20:51:57,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 65 states have internal predecessors, (85), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 20:51:57,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2022-11-18 20:51:57,306 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 127 [2022-11-18 20:51:57,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:51:57,311 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2022-11-18 20:51:57,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:51:57,312 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2022-11-18 20:51:57,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-18 20:51:57,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:51:57,320 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:51:57,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:51:57,321 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:51:57,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:51:57,321 INFO L85 PathProgramCache]: Analyzing trace with hash 536399421, now seen corresponding path program 1 times [2022-11-18 20:51:57,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:51:57,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695280722] [2022-11-18 20:51:57,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:57,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:51:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:51:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:51:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:51:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:51:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:51:57,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:51:57,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 20:51:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:51:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:51:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:51:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:51:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:51:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:51:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 20:51:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:51:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:57,982 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2022-11-18 20:51:57,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:51:57,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695280722] [2022-11-18 20:51:57,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695280722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:51:57,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:51:57,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:51:57,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253006214] [2022-11-18 20:51:57,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:51:57,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:51:57,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:51:57,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:51:57,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:51:57,985 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:51:58,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:51:58,094 INFO L93 Difference]: Finished difference Result 133 states and 184 transitions. [2022-11-18 20:51:58,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:51:58,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2022-11-18 20:51:58,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:51:58,096 INFO L225 Difference]: With dead ends: 133 [2022-11-18 20:51:58,096 INFO L226 Difference]: Without dead ends: 88 [2022-11-18 20:51:58,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:51:58,097 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 12 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:51:58,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 379 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:51:58,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-18 20:51:58,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 82. [2022-11-18 20:51:58,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 63 states have (on average 1.380952380952381) internal successors, (87), 67 states have internal predecessors, (87), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 20:51:58,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2022-11-18 20:51:58,105 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 127 [2022-11-18 20:51:58,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:51:58,106 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2022-11-18 20:51:58,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:51:58,106 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2022-11-18 20:51:58,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-18 20:51:58,108 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:51:58,108 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:51:58,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:51:58,109 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:51:58,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:51:58,109 INFO L85 PathProgramCache]: Analyzing trace with hash -743464257, now seen corresponding path program 1 times [2022-11-18 20:51:58,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:51:58,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149277031] [2022-11-18 20:51:58,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:58,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:51:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:58,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:51:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:58,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:51:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:58,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:51:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:58,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:51:58,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:58,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:51:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:58,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:51:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:58,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 20:51:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:58,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:51:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:58,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:51:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:58,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:51:58,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:58,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:51:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:58,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:51:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:58,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:51:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:58,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 20:51:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:58,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:51:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:58,735 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2022-11-18 20:51:58,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:51:58,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149277031] [2022-11-18 20:51:58,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149277031] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:51:58,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:51:58,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:51:58,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553528060] [2022-11-18 20:51:58,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:51:58,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:51:58,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:51:58,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:51:58,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:51:58,739 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:51:58,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:51:58,830 INFO L93 Difference]: Finished difference Result 133 states and 182 transitions. [2022-11-18 20:51:58,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:51:58,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2022-11-18 20:51:58,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:51:58,832 INFO L225 Difference]: With dead ends: 133 [2022-11-18 20:51:58,833 INFO L226 Difference]: Without dead ends: 86 [2022-11-18 20:51:58,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:51:58,836 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 3 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:51:58,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 378 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:51:58,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-18 20:51:58,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2022-11-18 20:51:58,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 69 states have internal predecessors, (89), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 20:51:58,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 119 transitions. [2022-11-18 20:51:58,856 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 119 transitions. Word has length 127 [2022-11-18 20:51:58,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:51:58,857 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 119 transitions. [2022-11-18 20:51:58,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:51:58,857 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 119 transitions. [2022-11-18 20:51:58,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-18 20:51:58,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:51:58,859 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:51:58,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:51:58,860 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:51:58,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:51:58,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1330270271, now seen corresponding path program 1 times [2022-11-18 20:51:58,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:51:58,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117986952] [2022-11-18 20:51:58,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:58,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:51:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:59,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:51:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:59,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:51:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:59,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:51:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:59,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:51:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:59,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:51:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:59,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:51:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:59,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 20:51:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:59,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:51:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:59,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:51:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:59,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:51:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:59,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:51:59,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:59,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:51:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:59,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:51:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:59,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 20:51:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:59,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:51:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:59,692 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2022-11-18 20:51:59,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:51:59,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117986952] [2022-11-18 20:51:59,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117986952] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:51:59,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054959024] [2022-11-18 20:51:59,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:59,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:51:59,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:51:59,699 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:51:59,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:52:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:00,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:52:00,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:52:00,811 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2022-11-18 20:52:00,811 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:52:00,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054959024] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:00,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:52:00,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2022-11-18 20:52:00,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534293595] [2022-11-18 20:52:00,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:00,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:52:00,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:00,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:52:00,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:52:00,814 INFO L87 Difference]: Start difference. First operand 84 states and 119 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:52:00,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:00,878 INFO L93 Difference]: Finished difference Result 90 states and 125 transitions. [2022-11-18 20:52:00,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:52:00,879 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2022-11-18 20:52:00,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:00,880 INFO L225 Difference]: With dead ends: 90 [2022-11-18 20:52:00,880 INFO L226 Difference]: Without dead ends: 89 [2022-11-18 20:52:00,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:52:00,881 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 29 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:00,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 457 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:00,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-11-18 20:52:00,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 80. [2022-11-18 20:52:00,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 65 states have internal predecessors, (85), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 20:52:00,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2022-11-18 20:52:00,887 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 127 [2022-11-18 20:52:00,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:00,888 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2022-11-18 20:52:00,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:52:00,888 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2022-11-18 20:52:00,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-18 20:52:00,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:00,890 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:00,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:52:01,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:52:01,100 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:52:01,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:01,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1110450509, now seen corresponding path program 1 times [2022-11-18 20:52:01,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:01,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497406784] [2022-11-18 20:52:01,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:01,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:01,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:52:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:01,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:52:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:01,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:52:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:01,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:52:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:01,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:52:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:01,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:52:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:01,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 20:52:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:01,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:52:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:01,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:52:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:01,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:52:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:01,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:52:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:01,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:52:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:01,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:52:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:01,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 20:52:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:01,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:52:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:01,844 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2022-11-18 20:52:01,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:01,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497406784] [2022-11-18 20:52:01,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497406784] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:52:01,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59026683] [2022-11-18 20:52:01,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:01,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:52:01,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:52:01,847 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:52:01,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:52:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:03,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 1885 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:52:03,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:52:03,058 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2022-11-18 20:52:03,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:52:03,163 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2022-11-18 20:52:03,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59026683] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:52:03,163 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:52:03,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2022-11-18 20:52:03,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358667361] [2022-11-18 20:52:03,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:52:03,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:52:03,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:03,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:52:03,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:52:03,166 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:52:03,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:03,309 INFO L93 Difference]: Finished difference Result 114 states and 157 transitions. [2022-11-18 20:52:03,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:52:03,309 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 141 [2022-11-18 20:52:03,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:03,310 INFO L225 Difference]: With dead ends: 114 [2022-11-18 20:52:03,311 INFO L226 Difference]: Without dead ends: 94 [2022-11-18 20:52:03,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:52:03,312 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 27 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:03,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 653 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:52:03,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-11-18 20:52:03,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2022-11-18 20:52:03,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 73 states have internal predecessors, (93), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 20:52:03,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 123 transitions. [2022-11-18 20:52:03,319 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 123 transitions. Word has length 141 [2022-11-18 20:52:03,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:03,320 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 123 transitions. [2022-11-18 20:52:03,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:52:03,320 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 123 transitions. [2022-11-18 20:52:03,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-18 20:52:03,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:03,323 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:03,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-18 20:52:03,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:52:03,534 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:52:03,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:03,534 INFO L85 PathProgramCache]: Analyzing trace with hash 69901525, now seen corresponding path program 2 times [2022-11-18 20:52:03,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:03,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140767762] [2022-11-18 20:52:03,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:03,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:03,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:52:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:03,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:52:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:03,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:52:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:03,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:52:03,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:03,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:52:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:52:04,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 20:52:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:52:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:52:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:52:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:52:04,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:52:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:52:04,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 20:52:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:52:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,139 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-11-18 20:52:04,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:04,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140767762] [2022-11-18 20:52:04,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140767762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:04,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:04,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:52:04,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805386362] [2022-11-18 20:52:04,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:04,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:52:04,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:04,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:52:04,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:52:04,145 INFO L87 Difference]: Start difference. First operand 88 states and 123 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:52:04,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:04,245 INFO L93 Difference]: Finished difference Result 94 states and 129 transitions. [2022-11-18 20:52:04,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:52:04,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 149 [2022-11-18 20:52:04,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:04,247 INFO L225 Difference]: With dead ends: 94 [2022-11-18 20:52:04,247 INFO L226 Difference]: Without dead ends: 92 [2022-11-18 20:52:04,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:52:04,248 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 6 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:04,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 362 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:52:04,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-18 20:52:04,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-11-18 20:52:04,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 74 states have (on average 1.3108108108108107) internal successors, (97), 77 states have internal predecessors, (97), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 20:52:04,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 127 transitions. [2022-11-18 20:52:04,255 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 127 transitions. Word has length 149 [2022-11-18 20:52:04,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:04,255 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 127 transitions. [2022-11-18 20:52:04,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:52:04,256 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 127 transitions. [2022-11-18 20:52:04,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-18 20:52:04,258 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:04,258 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:04,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:52:04,258 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:52:04,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:04,259 INFO L85 PathProgramCache]: Analyzing trace with hash -2119220271, now seen corresponding path program 1 times [2022-11-18 20:52:04,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:04,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509055988] [2022-11-18 20:52:04,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:04,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:52:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:52:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:52:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:52:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:52:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:52:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 20:52:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:52:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:52:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:52:04,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:52:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:52:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:52:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 20:52:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:52:04,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:04,778 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 541 trivial. 0 not checked. [2022-11-18 20:52:04,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:04,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509055988] [2022-11-18 20:52:04,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509055988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:04,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:04,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:52:04,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977370755] [2022-11-18 20:52:04,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:04,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:52:04,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:04,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:52:04,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:52:04,781 INFO L87 Difference]: Start difference. First operand 92 states and 127 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:52:04,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:04,880 INFO L93 Difference]: Finished difference Result 92 states and 127 transitions. [2022-11-18 20:52:04,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:52:04,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 153 [2022-11-18 20:52:04,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:04,882 INFO L225 Difference]: With dead ends: 92 [2022-11-18 20:52:04,882 INFO L226 Difference]: Without dead ends: 91 [2022-11-18 20:52:04,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:52:04,883 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 8 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:04,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 354 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:52:04,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-18 20:52:04,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-11-18 20:52:04,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 74 states have (on average 1.2972972972972974) internal successors, (96), 76 states have internal predecessors, (96), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 20:52:04,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 126 transitions. [2022-11-18 20:52:04,889 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 126 transitions. Word has length 153 [2022-11-18 20:52:04,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:04,890 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 126 transitions. [2022-11-18 20:52:04,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:52:04,891 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 126 transitions. [2022-11-18 20:52:04,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-18 20:52:04,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:04,893 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:04,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:52:04,893 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:52:04,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:04,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1271318703, now seen corresponding path program 1 times [2022-11-18 20:52:04,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:04,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685538318] [2022-11-18 20:52:04,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:04,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:05,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:52:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:05,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:52:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:05,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:52:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:05,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:52:05,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:05,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:52:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:05,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:52:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:05,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 20:52:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:05,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:52:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:05,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:52:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:05,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:52:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:05,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:52:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:05,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:52:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:05,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:52:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:05,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 20:52:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:05,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:52:05,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:05,853 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2022-11-18 20:52:05,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:05,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685538318] [2022-11-18 20:52:05,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685538318] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:52:05,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469304908] [2022-11-18 20:52:05,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:05,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:52:05,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:52:05,856 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:52:05,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:52:07,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:07,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 1940 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:52:07,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:52:07,481 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2022-11-18 20:52:07,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:52:07,656 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2022-11-18 20:52:07,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469304908] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:52:07,656 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:52:07,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 16 [2022-11-18 20:52:07,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259628791] [2022-11-18 20:52:07,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:52:07,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-18 20:52:07,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:07,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-18 20:52:07,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:52:07,660 INFO L87 Difference]: Start difference. First operand 91 states and 126 transitions. Second operand has 16 states, 16 states have (on average 5.0625) internal successors, (81), 15 states have internal predecessors, (81), 1 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:52:07,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:07,854 INFO L93 Difference]: Finished difference Result 126 states and 170 transitions. [2022-11-18 20:52:07,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:52:07,854 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.0625) internal successors, (81), 15 states have internal predecessors, (81), 1 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 154 [2022-11-18 20:52:07,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:07,856 INFO L225 Difference]: With dead ends: 126 [2022-11-18 20:52:07,856 INFO L226 Difference]: Without dead ends: 103 [2022-11-18 20:52:07,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 328 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2022-11-18 20:52:07,857 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 41 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:07,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 651 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:52:07,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-18 20:52:07,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-11-18 20:52:07,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 86 states have (on average 1.255813953488372) internal successors, (108), 88 states have internal predecessors, (108), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 20:52:07,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 138 transitions. [2022-11-18 20:52:07,864 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 138 transitions. Word has length 154 [2022-11-18 20:52:07,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:07,868 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 138 transitions. [2022-11-18 20:52:07,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.0625) internal successors, (81), 15 states have internal predecessors, (81), 1 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:52:07,868 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 138 transitions. [2022-11-18 20:52:07,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-18 20:52:07,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:07,871 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:07,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:52:08,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 20:52:08,083 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:52:08,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:08,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1507302533, now seen corresponding path program 2 times [2022-11-18 20:52:08,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:08,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840257877] [2022-11-18 20:52:08,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:08,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:08,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:52:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:08,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:52:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:08,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:52:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:08,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:52:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:08,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:52:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:08,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:52:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:08,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 20:52:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:08,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:52:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:08,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:52:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:08,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:52:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:08,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:52:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:08,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:52:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:08,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:52:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:08,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 20:52:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:08,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:52:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:08,791 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2022-11-18 20:52:08,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:08,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840257877] [2022-11-18 20:52:08,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840257877] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:52:08,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157533938] [2022-11-18 20:52:08,792 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:52:08,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:52:08,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:52:08,794 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:52:08,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:52:09,985 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:52:09,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:52:09,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:52:09,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:52:10,042 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2022-11-18 20:52:10,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:52:10,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157533938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:10,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:52:10,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-11-18 20:52:10,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665613208] [2022-11-18 20:52:10,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:10,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:52:10,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:10,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:52:10,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:52:10,047 INFO L87 Difference]: Start difference. First operand 103 states and 138 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:52:10,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:10,080 INFO L93 Difference]: Finished difference Result 156 states and 199 transitions. [2022-11-18 20:52:10,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:52:10,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 166 [2022-11-18 20:52:10,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:10,082 INFO L225 Difference]: With dead ends: 156 [2022-11-18 20:52:10,082 INFO L226 Difference]: Without dead ends: 107 [2022-11-18 20:52:10,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:52:10,086 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 2 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:10,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 412 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:10,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-18 20:52:10,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2022-11-18 20:52:10,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 89 states have (on average 1.247191011235955) internal successors, (111), 91 states have internal predecessors, (111), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 20:52:10,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 141 transitions. [2022-11-18 20:52:10,092 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 141 transitions. Word has length 166 [2022-11-18 20:52:10,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:10,093 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 141 transitions. [2022-11-18 20:52:10,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:52:10,094 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 141 transitions. [2022-11-18 20:52:10,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-18 20:52:10,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:10,096 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:10,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:52:10,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 20:52:10,306 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 20:52:10,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:10,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1381460339, now seen corresponding path program 1 times [2022-11-18 20:52:10,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:10,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227146738] [2022-11-18 20:52:10,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:10,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:10,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:52:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:10,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:52:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:10,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:52:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:10,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:52:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:11,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:52:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:11,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:52:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:11,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 20:52:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:11,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:52:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:11,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:52:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:11,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:52:11,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:11,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:52:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:11,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:52:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:11,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:52:11,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:11,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 20:52:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:11,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:52:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:11,146 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2022-11-18 20:52:11,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:11,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227146738] [2022-11-18 20:52:11,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227146738] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:52:11,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506458137] [2022-11-18 20:52:11,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:11,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:52:11,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:52:11,149 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:52:11,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:52:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:12,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 2062 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:52:12,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:52:12,720 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2022-11-18 20:52:12,721 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:52:12,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506458137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:12,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:52:12,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-11-18 20:52:12,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060413563] [2022-11-18 20:52:12,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:12,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:52:12,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:12,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:52:12,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:52:12,723 INFO L87 Difference]: Start difference. First operand 106 states and 141 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:52:12,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:12,756 INFO L93 Difference]: Finished difference Result 106 states and 141 transitions. [2022-11-18 20:52:12,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:52:12,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 166 [2022-11-18 20:52:12,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:12,758 INFO L225 Difference]: With dead ends: 106 [2022-11-18 20:52:12,758 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:52:12,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:52:12,759 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 25 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:12,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 272 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:12,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:52:12,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:52:12,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:12,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:52:12,761 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 166 [2022-11-18 20:52:12,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:12,761 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:52:12,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:52:12,762 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:52:12,762 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:52:12,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-18 20:52:12,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-18 20:52:12,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-18 20:52:12,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-18 20:52:12,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:52:12,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 20:52:12,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:52:13,092 INFO L902 garLoopResultBuilder]: At program point L580-3(lines 580 582) the Hoare annotation is: true [2022-11-18 20:52:13,093 INFO L899 garLoopResultBuilder]: For program point L613-4(lines 613 617) no Hoare annotation was computed. [2022-11-18 20:52:13,093 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 629) no Hoare annotation was computed. [2022-11-18 20:52:13,093 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 20:52:13,095 INFO L902 garLoopResultBuilder]: At program point L598(line 598) the Hoare annotation is: true [2022-11-18 20:52:13,095 INFO L902 garLoopResultBuilder]: At program point L599(line 599) the Hoare annotation is: true [2022-11-18 20:52:13,095 INFO L899 garLoopResultBuilder]: For program point L583(lines 578 584) no Hoare annotation was computed. [2022-11-18 20:52:13,095 INFO L902 garLoopResultBuilder]: At program point L600(line 600) the Hoare annotation is: true [2022-11-18 20:52:13,095 INFO L899 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2022-11-18 20:52:13,095 INFO L899 garLoopResultBuilder]: For program point L551-2(line 551) no Hoare annotation was computed. [2022-11-18 20:52:13,095 INFO L899 garLoopResultBuilder]: For program point L551-3(line 551) no Hoare annotation was computed. [2022-11-18 20:52:13,095 INFO L899 garLoopResultBuilder]: For program point L551-5(line 551) no Hoare annotation was computed. [2022-11-18 20:52:13,095 INFO L899 garLoopResultBuilder]: For program point L551-6(line 551) no Hoare annotation was computed. [2022-11-18 20:52:13,096 INFO L899 garLoopResultBuilder]: For program point L551-8(line 551) no Hoare annotation was computed. [2022-11-18 20:52:13,096 INFO L899 garLoopResultBuilder]: For program point L551-9(lines 551 552) no Hoare annotation was computed. [2022-11-18 20:52:13,096 INFO L899 garLoopResultBuilder]: For program point L551-11(lines 551 552) no Hoare annotation was computed. [2022-11-18 20:52:13,096 INFO L899 garLoopResultBuilder]: For program point L551-12(lines 551 552) no Hoare annotation was computed. [2022-11-18 20:52:13,096 INFO L902 garLoopResultBuilder]: At program point L601(line 601) the Hoare annotation is: true [2022-11-18 20:52:13,096 INFO L899 garLoopResultBuilder]: For program point L551-14(lines 551 552) no Hoare annotation was computed. [2022-11-18 20:52:13,097 INFO L902 garLoopResultBuilder]: At program point L634-1(lines 573 643) the Hoare annotation is: true [2022-11-18 20:52:13,097 INFO L902 garLoopResultBuilder]: At program point L551-15(lines 550 553) the Hoare annotation is: true [2022-11-18 20:52:13,097 INFO L899 garLoopResultBuilder]: For program point L634-2(lines 634 638) no Hoare annotation was computed. [2022-11-18 20:52:13,097 INFO L902 garLoopResultBuilder]: At program point L585(line 585) the Hoare annotation is: true [2022-11-18 20:52:13,097 INFO L902 garLoopResultBuilder]: At program point L602(line 602) the Hoare annotation is: true [2022-11-18 20:52:13,097 INFO L902 garLoopResultBuilder]: At program point L586(line 586) the Hoare annotation is: true [2022-11-18 20:52:13,097 INFO L899 garLoopResultBuilder]: For program point L619-2(lines 619 623) no Hoare annotation was computed. [2022-11-18 20:52:13,097 INFO L899 garLoopResultBuilder]: For program point L619-3(line 619) no Hoare annotation was computed. [2022-11-18 20:52:13,097 INFO L899 garLoopResultBuilder]: For program point L619-4(line 619) no Hoare annotation was computed. [2022-11-18 20:52:13,098 INFO L895 garLoopResultBuilder]: At program point L619-5(lines 619 623) the Hoare annotation is: (or (<= 1 |ULTIMATE.start_main_~counter~0#1|) (= |ULTIMATE.start_main_~counter~0#1| 0)) [2022-11-18 20:52:13,098 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 20:52:13,098 INFO L902 garLoopResultBuilder]: At program point L587(line 587) the Hoare annotation is: true [2022-11-18 20:52:13,098 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 629) no Hoare annotation was computed. [2022-11-18 20:52:13,098 INFO L899 garLoopResultBuilder]: For program point L604(lines 604 610) no Hoare annotation was computed. [2022-11-18 20:52:13,098 INFO L902 garLoopResultBuilder]: At program point L604-2(lines 603 610) the Hoare annotation is: true [2022-11-18 20:52:13,098 INFO L899 garLoopResultBuilder]: For program point L604-3(lines 604 610) no Hoare annotation was computed. [2022-11-18 20:52:13,098 INFO L902 garLoopResultBuilder]: At program point L588(line 588) the Hoare annotation is: true [2022-11-18 20:52:13,099 INFO L899 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2022-11-18 20:52:13,099 INFO L899 garLoopResultBuilder]: For program point L555-2(line 555) no Hoare annotation was computed. [2022-11-18 20:52:13,099 INFO L899 garLoopResultBuilder]: For program point L555-3(line 555) no Hoare annotation was computed. [2022-11-18 20:52:13,099 INFO L899 garLoopResultBuilder]: For program point L555-5(line 555) no Hoare annotation was computed. [2022-11-18 20:52:13,099 INFO L899 garLoopResultBuilder]: For program point L555-6(line 555) no Hoare annotation was computed. [2022-11-18 20:52:13,099 INFO L899 garLoopResultBuilder]: For program point L555-8(line 555) no Hoare annotation was computed. [2022-11-18 20:52:13,100 INFO L899 garLoopResultBuilder]: For program point L555-9(lines 555 556) no Hoare annotation was computed. [2022-11-18 20:52:13,100 INFO L899 garLoopResultBuilder]: For program point L555-11(lines 555 556) no Hoare annotation was computed. [2022-11-18 20:52:13,100 INFO L899 garLoopResultBuilder]: For program point L555-12(lines 555 556) no Hoare annotation was computed. [2022-11-18 20:52:13,100 INFO L899 garLoopResultBuilder]: For program point L555-14(lines 555 556) no Hoare annotation was computed. [2022-11-18 20:52:13,100 INFO L895 garLoopResultBuilder]: At program point L555-15(lines 554 557) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~counter~0#1|) [2022-11-18 20:52:13,100 INFO L902 garLoopResultBuilder]: At program point L589(line 589) the Hoare annotation is: true [2022-11-18 20:52:13,101 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 619) no Hoare annotation was computed. [2022-11-18 20:52:13,103 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 20:52:13,103 INFO L902 garLoopResultBuilder]: At program point L606-2(lines 606 608) the Hoare annotation is: true [2022-11-18 20:52:13,103 INFO L902 garLoopResultBuilder]: At program point L606-3(lines 606 608) the Hoare annotation is: true [2022-11-18 20:52:13,104 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 619) no Hoare annotation was computed. [2022-11-18 20:52:13,104 INFO L899 garLoopResultBuilder]: For program point L624(lines 624 628) no Hoare annotation was computed. [2022-11-18 20:52:13,104 INFO L899 garLoopResultBuilder]: For program point L591(lines 591 597) no Hoare annotation was computed. [2022-11-18 20:52:13,104 INFO L895 garLoopResultBuilder]: At program point L624-2(lines 573 643) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~counter~0#1|) [2022-11-18 20:52:13,104 INFO L902 garLoopResultBuilder]: At program point L591-2(lines 590 597) the Hoare annotation is: true [2022-11-18 20:52:13,104 INFO L899 garLoopResultBuilder]: For program point L624-3(lines 624 628) no Hoare annotation was computed. [2022-11-18 20:52:13,105 INFO L902 garLoopResultBuilder]: At program point L591-3(lines 591 597) the Hoare annotation is: true [2022-11-18 20:52:13,105 INFO L902 garLoopResultBuilder]: At program point L642(lines 573 643) the Hoare annotation is: true [2022-11-18 20:52:13,107 INFO L899 garLoopResultBuilder]: For program point L609(lines 604 610) no Hoare annotation was computed. [2022-11-18 20:52:13,107 INFO L902 garLoopResultBuilder]: At program point L593-2(lines 593 595) the Hoare annotation is: true [2022-11-18 20:52:13,107 INFO L902 garLoopResultBuilder]: At program point L593-3(lines 593 595) the Hoare annotation is: true [2022-11-18 20:52:13,108 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 20:52:13,108 INFO L899 garLoopResultBuilder]: For program point L578-1(lines 578 584) no Hoare annotation was computed. [2022-11-18 20:52:13,108 INFO L902 garLoopResultBuilder]: At program point L578-3(lines 578 584) the Hoare annotation is: true [2022-11-18 20:52:13,108 INFO L902 garLoopResultBuilder]: At program point L578-4(lines 578 584) the Hoare annotation is: true [2022-11-18 20:52:13,109 INFO L899 garLoopResultBuilder]: For program point L596(lines 591 597) no Hoare annotation was computed. [2022-11-18 20:52:13,109 INFO L899 garLoopResultBuilder]: For program point L629-2(lines 629 633) no Hoare annotation was computed. [2022-11-18 20:52:13,109 INFO L899 garLoopResultBuilder]: For program point L629-3(line 629) no Hoare annotation was computed. [2022-11-18 20:52:13,109 INFO L899 garLoopResultBuilder]: For program point L629-4(line 629) no Hoare annotation was computed. [2022-11-18 20:52:13,109 INFO L895 garLoopResultBuilder]: At program point L629-5(lines 629 633) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_main_~counter~0#1| 2147483648)) [2022-11-18 20:52:13,109 INFO L899 garLoopResultBuilder]: For program point L613-1(lines 613 617) no Hoare annotation was computed. [2022-11-18 20:52:13,110 INFO L902 garLoopResultBuilder]: At program point L580-2(lines 580 582) the Hoare annotation is: true [2022-11-18 20:52:13,110 INFO L902 garLoopResultBuilder]: At program point L613-3(lines 613 617) the Hoare annotation is: true [2022-11-18 20:52:13,110 INFO L899 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2022-11-18 20:52:13,112 INFO L899 garLoopResultBuilder]: For program point appendEXIT(lines 558 572) no Hoare annotation was computed. [2022-11-18 20:52:13,112 INFO L899 garLoopResultBuilder]: For program point L561-2(lines 561 567) no Hoare annotation was computed. [2022-11-18 20:52:13,113 INFO L899 garLoopResultBuilder]: For program point appendFINAL(lines 558 572) no Hoare annotation was computed. [2022-11-18 20:52:13,113 INFO L895 garLoopResultBuilder]: At program point appendENTRY(lines 558 572) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2022-11-18 20:52:13,117 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:13,119 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:52:13,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:52:13 BoogieIcfgContainer [2022-11-18 20:52:13,140 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:52:13,141 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:52:13,142 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:52:13,142 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:52:13,142 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:51:52" (3/4) ... [2022-11-18 20:52:13,145 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:52:13,152 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure append [2022-11-18 20:52:13,165 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-18 20:52:13,166 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 20:52:13,167 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 20:52:13,167 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:52:13,257 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:52:13,257 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:52:13,258 INFO L158 Benchmark]: Toolchain (without parser) took 22386.77ms. Allocated memory was 148.9MB in the beginning and 476.1MB in the end (delta: 327.2MB). Free memory was 115.2MB in the beginning and 230.1MB in the end (delta: -114.9MB). Peak memory consumption was 212.3MB. Max. memory is 16.1GB. [2022-11-18 20:52:13,258 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 88.1MB. Free memory is still 45.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:52:13,259 INFO L158 Benchmark]: CACSL2BoogieTranslator took 561.69ms. Allocated memory is still 148.9MB. Free memory was 115.2MB in the beginning and 114.9MB in the end (delta: 329.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:52:13,260 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.40ms. Allocated memory is still 148.9MB. Free memory was 114.8MB in the beginning and 111.9MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:52:13,260 INFO L158 Benchmark]: Boogie Preprocessor took 43.93ms. Allocated memory is still 148.9MB. Free memory was 111.9MB in the beginning and 109.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:52:13,261 INFO L158 Benchmark]: RCFGBuilder took 879.05ms. Allocated memory is still 148.9MB. Free memory was 109.0MB in the beginning and 82.1MB in the end (delta: 26.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-18 20:52:13,261 INFO L158 Benchmark]: TraceAbstraction took 20719.96ms. Allocated memory was 148.9MB in the beginning and 476.1MB in the end (delta: 327.2MB). Free memory was 81.3MB in the beginning and 236.4MB in the end (delta: -155.1MB). Peak memory consumption was 175.1MB. Max. memory is 16.1GB. [2022-11-18 20:52:13,261 INFO L158 Benchmark]: Witness Printer took 116.11ms. Allocated memory is still 476.1MB. Free memory was 235.4MB in the beginning and 230.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-18 20:52:13,264 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 88.1MB. Free memory is still 45.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 561.69ms. Allocated memory is still 148.9MB. Free memory was 115.2MB in the beginning and 114.9MB in the end (delta: 329.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.40ms. Allocated memory is still 148.9MB. Free memory was 114.8MB in the beginning and 111.9MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.93ms. Allocated memory is still 148.9MB. Free memory was 111.9MB in the beginning and 109.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 879.05ms. Allocated memory is still 148.9MB. Free memory was 109.0MB in the beginning and 82.1MB in the end (delta: 26.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 20719.96ms. Allocated memory was 148.9MB in the beginning and 476.1MB in the end (delta: 327.2MB). Free memory was 81.3MB in the beginning and 236.4MB in the end (delta: -155.1MB). Peak memory consumption was 175.1MB. Max. memory is 16.1GB. * Witness Printer took 116.11ms. Allocated memory is still 476.1MB. Free memory was 235.4MB in the beginning and 230.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 619]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 619]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 80 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 20.6s, OverallIterations: 13, TraceHistogramMax: 15, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 192 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 192 mSDsluCounter, 5221 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3881 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 600 IncrementalHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 1340 mSDtfsCounter, 600 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1501 GetRequests, 1413 SyntacticMatches, 3 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=12, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 41 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 30 LocationsWithAnnotation, 59 PreInvPairs, 96 NumberOfFragments, 59 HoareAnnotationTreeSize, 59 FomulaSimplifications, 106 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 30 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 8.4s InterpolantComputationTime, 2522 NumberOfCodeBlocks, 2402 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2797 ConstructedInterpolants, 0 QuantifiedInterpolants, 5896 SizeOfPredicates, 8 NumberOfNonLiveVariables, 8004 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 20 InterpolantComputations, 11 PerfectInterpolantSequences, 10641/10701 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 619]: Loop Invariant Derived loop invariant: 1 <= counter || counter == 0 - InvariantResult [Line: 554]: Loop Invariant Derived loop invariant: 1 <= counter - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 <= counter - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: 0 <= counter + 2147483648 - InvariantResult [Line: 580]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 578]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 590]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-18 20:52:13,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0c9f19-a512-4b60-ab37-77e0ea3ff4da/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE