./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN --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 eb589a592aff310a2662d7a22b89559cebd75929901bc5e2cc7816fe45d47c92 --- 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-6b4ec56 [2022-11-20 11:35:59,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:35:59,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:35:59,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:35:59,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:35:59,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:35:59,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:35:59,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:35:59,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:35:59,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:35:59,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:35:59,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:35:59,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:35:59,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:35:59,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:35:59,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:35:59,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:35:59,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:35:59,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:35:59,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:35:59,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:35:59,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:35:59,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:35:59,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:35:59,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:35:59,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:35:59,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:35:59,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:35:59,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:35:59,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:35:59,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:35:59,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:35:59,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:35:59,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:35:59,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:35:59,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:35:59,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:35:59,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:35:59,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:35:59,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:35:59,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:35:59,511 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 11:35:59,559 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:35:59,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:35:59,561 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:35:59,561 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:35:59,562 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:35:59,562 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:35:59,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:35:59,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:35:59,563 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:35:59,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:35:59,565 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:35:59,565 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:35:59,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:35:59,566 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:35:59,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:35:59,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:35:59,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:35:59,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:35:59,567 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:35:59,567 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:35:59,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:35:59,567 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:35:59,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:35:59,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:35:59,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:35:59,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:35:59,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:35:59,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:35:59,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:35:59,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:35:59,570 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:35:59,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:35:59,571 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:35:59,571 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:35:59,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:35:59,571 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_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb589a592aff310a2662d7a22b89559cebd75929901bc5e2cc7816fe45d47c92 [2022-11-20 11:35:59,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:35:59,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:35:59,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:35:59,985 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:35:59,986 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:35:59,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength.c [2022-11-20 11:36:03,909 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:36:04,123 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:36:04,123 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength.c [2022-11-20 11:36:04,131 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/data/0bbcb7f21/0af6f8801d3b4119943a7222c1e9eb00/FLAG944927094 [2022-11-20 11:36:04,150 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/data/0bbcb7f21/0af6f8801d3b4119943a7222c1e9eb00 [2022-11-20 11:36:04,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:36:04,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:36:04,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:36:04,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:36:04,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:36:04,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:36:04" (1/1) ... [2022-11-20 11:36:04,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7130b4b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:04, skipping insertion in model container [2022-11-20 11:36:04,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:36:04" (1/1) ... [2022-11-20 11:36:04,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:36:04,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:36:04,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:36:04,403 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:36:04,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:36:04,438 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:36:04,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:04 WrapperNode [2022-11-20 11:36:04,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:36:04,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:36:04,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:36:04,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:36:04,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:04" (1/1) ... [2022-11-20 11:36:04,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:04" (1/1) ... [2022-11-20 11:36:04,480 INFO L138 Inliner]: procedures = 8, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2022-11-20 11:36:04,481 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:36:04,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:36:04,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:36:04,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:36:04,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:04" (1/1) ... [2022-11-20 11:36:04,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:04" (1/1) ... [2022-11-20 11:36:04,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:04" (1/1) ... [2022-11-20 11:36:04,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:04" (1/1) ... [2022-11-20 11:36:04,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:04" (1/1) ... [2022-11-20 11:36:04,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:04" (1/1) ... [2022-11-20 11:36:04,510 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:04" (1/1) ... [2022-11-20 11:36:04,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:04" (1/1) ... [2022-11-20 11:36:04,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:36:04,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:36:04,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:36:04,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:36:04,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:04" (1/1) ... [2022-11-20 11:36:04,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:36:04,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:36:04,556 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:36:04,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:36:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:36:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:36:04,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:36:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:36:04,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:36:04,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:36:04,715 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:36:04,718 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:36:04,984 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:36:04,993 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:36:05,007 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 11:36:05,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:36:05 BoogieIcfgContainer [2022-11-20 11:36:05,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:36:05,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:36:05,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:36:05,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:36:05,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:36:04" (1/3) ... [2022-11-20 11:36:05,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7730a584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:36:05, skipping insertion in model container [2022-11-20 11:36:05,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:36:04" (2/3) ... [2022-11-20 11:36:05,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7730a584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:36:05, skipping insertion in model container [2022-11-20 11:36:05,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:36:05" (3/3) ... [2022-11-20 11:36:05,032 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength.c [2022-11-20 11:36:05,068 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:36:05,078 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-20 11:36:05,163 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:36:05,176 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;@73d0ff24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:36:05,177 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-20 11:36:05,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:05,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 11:36:05,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:05,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 11:36:05,194 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:36:05,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:05,202 INFO L85 PathProgramCache]: Analyzing trace with hash 889666572, now seen corresponding path program 1 times [2022-11-20 11:36:05,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:36:05,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766962769] [2022-11-20 11:36:05,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:05,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:36:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:05,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:36:05,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:36:05,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766962769] [2022-11-20 11:36:05,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766962769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:36:05,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:36:05,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:36:05,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542739631] [2022-11-20 11:36:05,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:05,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:36:05,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:36:05,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:36:05,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:36:05,651 INFO L87 Difference]: Start difference. First operand has 29 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:05,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:05,803 INFO L93 Difference]: Finished difference Result 101 states and 125 transitions. [2022-11-20 11:36:05,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:36:05,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-20 11:36:05,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:05,816 INFO L225 Difference]: With dead ends: 101 [2022-11-20 11:36:05,817 INFO L226 Difference]: Without dead ends: 56 [2022-11-20 11:36:05,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:36:05,824 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 62 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:05,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 65 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:36:05,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-20 11:36:05,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 26. [2022-11-20 11:36:05,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.4) internal successors, (28), 25 states have internal predecessors, (28), 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) [2022-11-20 11:36:05,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-11-20 11:36:05,867 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 6 [2022-11-20 11:36:05,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:05,868 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-11-20 11:36:05,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:05,869 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-11-20 11:36:05,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 11:36:05,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:05,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:36:05,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:36:05,870 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:36:05,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:05,871 INFO L85 PathProgramCache]: Analyzing trace with hash 269484748, now seen corresponding path program 1 times [2022-11-20 11:36:05,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:36:05,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600369899] [2022-11-20 11:36:05,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:05,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:36:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:05,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:36:05,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:36:05,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600369899] [2022-11-20 11:36:05,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600369899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:36:05,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:36:05,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:36:05,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574003127] [2022-11-20 11:36:05,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:05,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:36:05,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:36:05,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:36:05,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:36:05,964 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-20 11:36:06,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:06,024 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2022-11-20 11:36:06,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:36:06,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-20 11:36:06,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:06,025 INFO L225 Difference]: With dead ends: 40 [2022-11-20 11:36:06,025 INFO L226 Difference]: Without dead ends: 38 [2022-11-20 11:36:06,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:36:06,027 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 9 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:06,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 48 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:36:06,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-20 11:36:06,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 31. [2022-11-20 11:36:06,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.32) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:06,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2022-11-20 11:36:06,035 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 8 [2022-11-20 11:36:06,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:06,036 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2022-11-20 11:36:06,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-20 11:36:06,036 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2022-11-20 11:36:06,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 11:36:06,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:06,037 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:36:06,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:36:06,038 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:36:06,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:06,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1131599168, now seen corresponding path program 1 times [2022-11-20 11:36:06,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:36:06,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092899678] [2022-11-20 11:36:06,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:06,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:36:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:06,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 11:36:06,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:36:06,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092899678] [2022-11-20 11:36:06,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092899678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:36:06,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:36:06,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:36:06,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952408941] [2022-11-20 11:36:06,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:06,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:36:06,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:36:06,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:36:06,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:36:06,221 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:06,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:06,305 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2022-11-20 11:36:06,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:36:06,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-20 11:36:06,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:06,307 INFO L225 Difference]: With dead ends: 53 [2022-11-20 11:36:06,308 INFO L226 Difference]: Without dead ends: 51 [2022-11-20 11:36:06,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:36:06,310 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 20 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:06,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 58 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:36:06,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-20 11:36:06,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 35. [2022-11-20 11:36:06,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 34 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:06,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2022-11-20 11:36:06,337 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 13 [2022-11-20 11:36:06,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:06,338 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2022-11-20 11:36:06,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:06,342 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-11-20 11:36:06,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 11:36:06,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:06,343 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:36:06,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:36:06,344 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:36:06,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:06,344 INFO L85 PathProgramCache]: Analyzing trace with hash 804002367, now seen corresponding path program 1 times [2022-11-20 11:36:06,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:36:06,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634696405] [2022-11-20 11:36:06,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:06,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:36:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:06,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:36:06,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:36:06,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634696405] [2022-11-20 11:36:06,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634696405] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:36:06,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825668685] [2022-11-20 11:36:06,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:06,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:36:06,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:36:06,486 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:36:06,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:36:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:06,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:36:06,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:06,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:36:06,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:36:06,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:36:06,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825668685] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:36:06,795 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:36:06,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 11:36:06,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752183065] [2022-11-20 11:36:06,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:36:06,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:36:06,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:36:06,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:36:06,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:36:06,798 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:06,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:06,987 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2022-11-20 11:36:06,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:36:06,988 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-20 11:36:06,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:06,989 INFO L225 Difference]: With dead ends: 69 [2022-11-20 11:36:06,990 INFO L226 Difference]: Without dead ends: 60 [2022-11-20 11:36:06,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:36:06,992 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 60 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:06,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 101 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:36:06,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-20 11:36:07,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 50. [2022-11-20 11:36:07,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 49 states have internal predecessors, (58), 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) [2022-11-20 11:36:07,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2022-11-20 11:36:07,002 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 15 [2022-11-20 11:36:07,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:07,002 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2022-11-20 11:36:07,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:07,003 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2022-11-20 11:36:07,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 11:36:07,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:07,004 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-20 11:36:07,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:36:07,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:36:07,211 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:36:07,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:07,212 INFO L85 PathProgramCache]: Analyzing trace with hash 222937410, now seen corresponding path program 1 times [2022-11-20 11:36:07,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:36:07,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092319263] [2022-11-20 11:36:07,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:07,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:36:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:07,531 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:36:07,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:36:07,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092319263] [2022-11-20 11:36:07,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092319263] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:36:07,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375185607] [2022-11-20 11:36:07,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:07,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:36:07,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:36:07,535 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:36:07,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:36:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:07,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 11:36:07,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:07,731 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:36:07,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:36:07,805 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:36:07,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375185607] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:36:07,805 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:36:07,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-20 11:36:07,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246505323] [2022-11-20 11:36:07,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:36:07,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:36:07,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:36:07,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:36:07,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:36:07,809 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:07,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:07,991 INFO L93 Difference]: Finished difference Result 88 states and 101 transitions. [2022-11-20 11:36:08,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:36:08,009 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-20 11:36:08,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:08,010 INFO L225 Difference]: With dead ends: 88 [2022-11-20 11:36:08,011 INFO L226 Difference]: Without dead ends: 56 [2022-11-20 11:36:08,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:36:08,013 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 56 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:08,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 72 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:36:08,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-20 11:36:08,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2022-11-20 11:36:08,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 48 states have internal predecessors, (54), 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) [2022-11-20 11:36:08,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2022-11-20 11:36:08,023 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 16 [2022-11-20 11:36:08,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:08,023 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2022-11-20 11:36:08,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:08,024 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2022-11-20 11:36:08,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 11:36:08,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:08,025 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:36:08,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:36:08,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:36:08,231 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:36:08,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:08,232 INFO L85 PathProgramCache]: Analyzing trace with hash -140543044, now seen corresponding path program 1 times [2022-11-20 11:36:08,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:36:08,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747854782] [2022-11-20 11:36:08,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:08,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:36:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:08,340 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 11:36:08,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:36:08,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747854782] [2022-11-20 11:36:08,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747854782] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:36:08,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972298493] [2022-11-20 11:36:08,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:08,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:36:08,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:36:08,344 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:36:08,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:36:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:08,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 11:36:08,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:08,626 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:36:08,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:36:08,763 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:36:08,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972298493] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:36:08,764 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:36:08,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 15 [2022-11-20 11:36:08,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894520285] [2022-11-20 11:36:08,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:36:08,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 11:36:08,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:36:08,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 11:36:08,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:36:08,767 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:09,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:09,263 INFO L93 Difference]: Finished difference Result 115 states and 126 transitions. [2022-11-20 11:36:09,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 11:36:09,264 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-20 11:36:09,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:09,269 INFO L225 Difference]: With dead ends: 115 [2022-11-20 11:36:09,269 INFO L226 Difference]: Without dead ends: 80 [2022-11-20 11:36:09,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=146, Invalid=556, Unknown=0, NotChecked=0, Total=702 [2022-11-20 11:36:09,274 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 206 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:09,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 115 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:36:09,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-20 11:36:09,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 49. [2022-11-20 11:36:09,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 48 states have internal predecessors, (52), 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) [2022-11-20 11:36:09,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2022-11-20 11:36:09,300 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 17 [2022-11-20 11:36:09,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:09,301 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2022-11-20 11:36:09,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:09,301 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2022-11-20 11:36:09,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-20 11:36:09,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:09,305 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2022-11-20 11:36:09,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:36:09,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:36:09,512 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:36:09,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:09,513 INFO L85 PathProgramCache]: Analyzing trace with hash -745131094, now seen corresponding path program 1 times [2022-11-20 11:36:09,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:36:09,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360941015] [2022-11-20 11:36:09,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:09,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:36:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:09,735 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-20 11:36:09,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:36:09,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360941015] [2022-11-20 11:36:09,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360941015] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:36:09,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477264002] [2022-11-20 11:36:09,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:09,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:36:09,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:36:09,738 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:36:09,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 11:36:09,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:09,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:36:09,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:09,902 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-20 11:36:09,903 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:36:09,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477264002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:36:09,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:36:09,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 11:36:09,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845600360] [2022-11-20 11:36:09,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:09,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:36:09,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:36:09,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:36:09,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:36:09,906 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:09,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:09,989 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2022-11-20 11:36:09,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:36:09,993 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-20 11:36:09,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:09,996 INFO L225 Difference]: With dead ends: 49 [2022-11-20 11:36:09,996 INFO L226 Difference]: Without dead ends: 48 [2022-11-20 11:36:09,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:36:09,998 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 28 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:09,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 71 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:36:09,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-20 11:36:10,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-11-20 11:36:10,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 47 states have internal predecessors, (51), 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) [2022-11-20 11:36:10,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2022-11-20 11:36:10,006 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 29 [2022-11-20 11:36:10,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:10,006 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2022-11-20 11:36:10,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:10,007 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2022-11-20 11:36:10,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 11:36:10,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:10,014 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2022-11-20 11:36:10,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:36:10,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-20 11:36:10,222 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:36:10,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:10,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1625828148, now seen corresponding path program 1 times [2022-11-20 11:36:10,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:36:10,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785407091] [2022-11-20 11:36:10,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:10,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:36:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:10,581 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:36:10,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:36:10,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785407091] [2022-11-20 11:36:10,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785407091] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:36:10,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507214006] [2022-11-20 11:36:10,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:10,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:36:10,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:36:10,583 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:36:10,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 11:36:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:10,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 11:36:10,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:10,873 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 11:36:10,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:36:11,068 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 11:36:11,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507214006] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:36:11,068 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:36:11,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 21 [2022-11-20 11:36:11,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656674794] [2022-11-20 11:36:11,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:36:11,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-20 11:36:11,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:36:11,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-20 11:36:11,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:36:11,071 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand has 21 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 21 states have internal predecessors, (65), 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) [2022-11-20 11:36:11,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:11,722 INFO L93 Difference]: Finished difference Result 100 states and 109 transitions. [2022-11-20 11:36:11,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 11:36:11,723 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-20 11:36:11,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:11,724 INFO L225 Difference]: With dead ends: 100 [2022-11-20 11:36:11,724 INFO L226 Difference]: Without dead ends: 73 [2022-11-20 11:36:11,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 43 SyntacticMatches, 5 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=246, Invalid=1160, Unknown=0, NotChecked=0, Total=1406 [2022-11-20 11:36:11,726 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 146 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:11,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 139 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:36:11,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-20 11:36:11,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 63. [2022-11-20 11:36:11,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 59 states have (on average 1.1355932203389831) internal successors, (67), 62 states have internal predecessors, (67), 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) [2022-11-20 11:36:11,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2022-11-20 11:36:11,737 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 30 [2022-11-20 11:36:11,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:11,738 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2022-11-20 11:36:11,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 21 states have internal predecessors, (65), 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) [2022-11-20 11:36:11,738 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2022-11-20 11:36:11,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-20 11:36:11,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:11,739 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2022-11-20 11:36:11,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:36:11,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:36:11,947 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:36:11,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:11,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1809387896, now seen corresponding path program 2 times [2022-11-20 11:36:11,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:36:11,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320906868] [2022-11-20 11:36:11,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:11,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:36:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:12,315 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 11:36:12,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:36:12,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320906868] [2022-11-20 11:36:12,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320906868] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:36:12,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684278499] [2022-11-20 11:36:12,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:36:12,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:36:12,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:36:12,318 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:36:12,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 11:36:12,389 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:36:12,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:36:12,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:36:12,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:12,459 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 11:36:12,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:36:12,566 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 11:36:12,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684278499] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:36:12,566 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:36:12,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 19 [2022-11-20 11:36:12,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574733865] [2022-11-20 11:36:12,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:36:12,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 11:36:12,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:36:12,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 11:36:12,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-11-20 11:36:12,570 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand has 19 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 19 states have internal predecessors, (60), 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) [2022-11-20 11:36:13,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:13,152 INFO L93 Difference]: Finished difference Result 103 states and 111 transitions. [2022-11-20 11:36:13,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 11:36:13,153 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 19 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-20 11:36:13,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:13,154 INFO L225 Difference]: With dead ends: 103 [2022-11-20 11:36:13,154 INFO L226 Difference]: Without dead ends: 68 [2022-11-20 11:36:13,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=318, Invalid=1014, Unknown=0, NotChecked=0, Total=1332 [2022-11-20 11:36:13,156 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 236 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:13,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 91 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:36:13,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-20 11:36:13,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 58. [2022-11-20 11:36:13,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 55 states have (on average 1.0909090909090908) internal successors, (60), 57 states have internal predecessors, (60), 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) [2022-11-20 11:36:13,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2022-11-20 11:36:13,170 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 32 [2022-11-20 11:36:13,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:13,179 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2022-11-20 11:36:13,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 19 states have internal predecessors, (60), 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) [2022-11-20 11:36:13,180 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2022-11-20 11:36:13,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-20 11:36:13,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:13,182 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:36:13,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:36:13,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:36:13,400 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:36:13,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:13,401 INFO L85 PathProgramCache]: Analyzing trace with hash -941132989, now seen corresponding path program 1 times [2022-11-20 11:36:13,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:36:13,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818828058] [2022-11-20 11:36:13,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:13,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:36:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:13,488 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-20 11:36:13,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:36:13,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818828058] [2022-11-20 11:36:13,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818828058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:36:13,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:36:13,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:36:13,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914440620] [2022-11-20 11:36:13,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:13,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:36:13,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:36:13,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:36:13,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:36:13,491 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:13,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:13,541 INFO L93 Difference]: Finished difference Result 65 states and 67 transitions. [2022-11-20 11:36:13,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:36:13,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-11-20 11:36:13,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:13,542 INFO L225 Difference]: With dead ends: 65 [2022-11-20 11:36:13,542 INFO L226 Difference]: Without dead ends: 63 [2022-11-20 11:36:13,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:36:13,544 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 9 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:13,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 39 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:36:13,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-20 11:36:13,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-11-20 11:36:13,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 60 states have (on average 1.0833333333333333) internal successors, (65), 62 states have internal predecessors, (65), 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) [2022-11-20 11:36:13,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 65 transitions. [2022-11-20 11:36:13,561 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 65 transitions. Word has length 41 [2022-11-20 11:36:13,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:13,562 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 65 transitions. [2022-11-20 11:36:13,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:13,562 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2022-11-20 11:36:13,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-20 11:36:13,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:13,567 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:36:13,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:36:13,567 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:36:13,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:13,568 INFO L85 PathProgramCache]: Analyzing trace with hash -985384863, now seen corresponding path program 1 times [2022-11-20 11:36:13,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:36:13,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142208208] [2022-11-20 11:36:13,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:13,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:36:13,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:13,659 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-20 11:36:13,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:36:13,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142208208] [2022-11-20 11:36:13,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142208208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:36:13,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:36:13,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:36:13,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011969020] [2022-11-20 11:36:13,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:13,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:36:13,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:36:13,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:36:13,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:36:13,662 INFO L87 Difference]: Start difference. First operand 63 states and 65 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:13,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:13,698 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2022-11-20 11:36:13,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:36:13,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-11-20 11:36:13,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:13,700 INFO L225 Difference]: With dead ends: 63 [2022-11-20 11:36:13,700 INFO L226 Difference]: Without dead ends: 62 [2022-11-20 11:36:13,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:36:13,703 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 16 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:13,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 26 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:36:13,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-20 11:36:13,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-20 11:36:13,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 60 states have (on average 1.0666666666666667) internal successors, (64), 61 states have internal predecessors, (64), 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) [2022-11-20 11:36:13,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2022-11-20 11:36:13,735 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 46 [2022-11-20 11:36:13,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:13,735 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2022-11-20 11:36:13,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:13,736 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2022-11-20 11:36:13,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-20 11:36:13,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:13,739 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 11:36:13,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:36:13,740 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:36:13,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:13,741 INFO L85 PathProgramCache]: Analyzing trace with hash -482159590, now seen corresponding path program 1 times [2022-11-20 11:36:13,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:36:13,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92980446] [2022-11-20 11:36:13,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:13,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:36:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:14,091 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:36:14,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:36:14,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92980446] [2022-11-20 11:36:14,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92980446] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:36:14,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483528016] [2022-11-20 11:36:14,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:14,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:36:14,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:36:14,100 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:36:14,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 11:36:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:14,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:36:14,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:14,300 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:36:14,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:36:14,486 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:36:14,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483528016] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:36:14,487 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:36:14,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 20 [2022-11-20 11:36:14,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049621140] [2022-11-20 11:36:14,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:36:14,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-20 11:36:14,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:36:14,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-20 11:36:14,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2022-11-20 11:36:14,489 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand has 20 states, 20 states have (on average 4.5) internal successors, (90), 20 states have internal predecessors, (90), 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) [2022-11-20 11:36:14,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:14,746 INFO L93 Difference]: Finished difference Result 122 states and 133 transitions. [2022-11-20 11:36:14,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 11:36:14,747 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.5) internal successors, (90), 20 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-11-20 11:36:14,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:14,748 INFO L225 Difference]: With dead ends: 122 [2022-11-20 11:36:14,748 INFO L226 Difference]: Without dead ends: 109 [2022-11-20 11:36:14,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=208, Invalid=494, Unknown=0, NotChecked=0, Total=702 [2022-11-20 11:36:14,749 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 152 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:14,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 109 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:36:14,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-20 11:36:14,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2022-11-20 11:36:14,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 107 states have (on average 1.0654205607476634) internal successors, (114), 108 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:14,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 114 transitions. [2022-11-20 11:36:14,765 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 114 transitions. Word has length 47 [2022-11-20 11:36:14,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:14,765 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 114 transitions. [2022-11-20 11:36:14,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.5) internal successors, (90), 20 states have internal predecessors, (90), 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) [2022-11-20 11:36:14,766 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 114 transitions. [2022-11-20 11:36:14,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-20 11:36:14,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:14,774 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1] [2022-11-20 11:36:14,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:36:14,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:36:14,982 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:36:14,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:14,983 INFO L85 PathProgramCache]: Analyzing trace with hash -516822712, now seen corresponding path program 2 times [2022-11-20 11:36:14,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:36:14,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981193521] [2022-11-20 11:36:14,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:14,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:36:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:15,670 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 297 proven. 25 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-11-20 11:36:15,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:36:15,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981193521] [2022-11-20 11:36:15,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981193521] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:36:15,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939220420] [2022-11-20 11:36:15,670 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:36:15,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:36:15,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:36:15,672 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:36:15,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 11:36:15,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:36:15,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:36:15,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:36:15,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:15,851 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-11-20 11:36:15,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:36:15,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939220420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:36:15,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:36:15,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 16 [2022-11-20 11:36:15,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787231240] [2022-11-20 11:36:15,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:15,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:36:15,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:36:15,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:36:15,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:36:15,854 INFO L87 Difference]: Start difference. First operand 109 states and 114 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:15,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:15,935 INFO L93 Difference]: Finished difference Result 109 states and 114 transitions. [2022-11-20 11:36:15,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:36:15,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-11-20 11:36:15,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:15,937 INFO L225 Difference]: With dead ends: 109 [2022-11-20 11:36:15,937 INFO L226 Difference]: Without dead ends: 108 [2022-11-20 11:36:15,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-11-20 11:36:15,938 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:15,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 26 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:36:15,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-11-20 11:36:15,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2022-11-20 11:36:15,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 1.0560747663551402) internal successors, (113), 107 states have internal predecessors, (113), 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) [2022-11-20 11:36:15,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 113 transitions. [2022-11-20 11:36:15,953 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 113 transitions. Word has length 94 [2022-11-20 11:36:15,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:15,953 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 113 transitions. [2022-11-20 11:36:15,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:15,954 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 113 transitions. [2022-11-20 11:36:15,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-20 11:36:15,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:15,955 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 11:36:15,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-20 11:36:16,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-20 11:36:16,162 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:36:16,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:16,163 INFO L85 PathProgramCache]: Analyzing trace with hash 208064794, now seen corresponding path program 2 times [2022-11-20 11:36:16,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:36:16,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835839522] [2022-11-20 11:36:16,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:16,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:36:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:16,752 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 308 proven. 25 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-20 11:36:16,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:36:16,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835839522] [2022-11-20 11:36:16,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835839522] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:36:16,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557911690] [2022-11-20 11:36:16,753 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:36:16,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:36:16,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:36:16,755 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:36:16,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 11:36:16,938 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:36:16,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:36:16,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-20 11:36:16,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:17,298 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 285 proven. 42 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2022-11-20 11:36:17,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:36:17,609 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 285 proven. 42 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2022-11-20 11:36:17,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557911690] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:36:17,610 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:36:17,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 28 [2022-11-20 11:36:17,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678601960] [2022-11-20 11:36:17,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:36:17,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-20 11:36:17,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:36:17,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-20 11:36:17,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2022-11-20 11:36:17,612 INFO L87 Difference]: Start difference. First operand 108 states and 113 transitions. Second operand has 28 states, 28 states have (on average 3.642857142857143) internal successors, (102), 28 states have internal predecessors, (102), 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) [2022-11-20 11:36:18,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:18,539 INFO L93 Difference]: Finished difference Result 199 states and 212 transitions. [2022-11-20 11:36:18,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-20 11:36:18,540 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.642857142857143) internal successors, (102), 28 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2022-11-20 11:36:18,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:18,541 INFO L225 Difference]: With dead ends: 199 [2022-11-20 11:36:18,541 INFO L226 Difference]: Without dead ends: 136 [2022-11-20 11:36:18,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 193 SyntacticMatches, 7 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=358, Invalid=1804, Unknown=0, NotChecked=0, Total=2162 [2022-11-20 11:36:18,543 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 101 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:18,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 75 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:36:18,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-20 11:36:18,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 124. [2022-11-20 11:36:18,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 123 states have (on average 1.048780487804878) internal successors, (129), 123 states have internal predecessors, (129), 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) [2022-11-20 11:36:18,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 129 transitions. [2022-11-20 11:36:18,558 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 129 transitions. Word has length 107 [2022-11-20 11:36:18,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:18,559 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 129 transitions. [2022-11-20 11:36:18,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.642857142857143) internal successors, (102), 28 states have internal predecessors, (102), 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) [2022-11-20 11:36:18,559 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 129 transitions. [2022-11-20 11:36:18,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-20 11:36:18,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:18,561 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 11:36:18,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-20 11:36:18,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-20 11:36:18,768 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:36:18,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:18,769 INFO L85 PathProgramCache]: Analyzing trace with hash -762810342, now seen corresponding path program 3 times [2022-11-20 11:36:18,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:36:18,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467374175] [2022-11-20 11:36:18,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:18,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:36:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:19,569 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 336 proven. 64 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2022-11-20 11:36:19,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:36:19,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467374175] [2022-11-20 11:36:19,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467374175] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:36:19,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884765265] [2022-11-20 11:36:19,570 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 11:36:19,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:36:19,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:36:19,572 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:36:19,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-20 11:36:19,693 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-20 11:36:19,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:36:19,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:36:19,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:19,744 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2022-11-20 11:36:19,745 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:36:19,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884765265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:36:19,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:36:19,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15] total 17 [2022-11-20 11:36:19,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841577148] [2022-11-20 11:36:19,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:19,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:36:19,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:36:19,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:36:19,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2022-11-20 11:36:19,748 INFO L87 Difference]: Start difference. First operand 124 states and 129 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:19,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:19,798 INFO L93 Difference]: Finished difference Result 124 states and 129 transitions. [2022-11-20 11:36:19,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:36:19,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2022-11-20 11:36:19,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:19,800 INFO L225 Difference]: With dead ends: 124 [2022-11-20 11:36:19,800 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 11:36:19,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:36:19,803 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:19,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 22 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:36:19,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 11:36:19,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 11:36:19,805 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) [2022-11-20 11:36:19,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 11:36:19,806 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 123 [2022-11-20 11:36:19,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:19,806 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:36:19,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:19,806 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 11:36:19,807 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 11:36:19,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-20 11:36:19,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-20 11:36:19,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-20 11:36:19,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-20 11:36:19,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-20 11:36:19,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-20 11:36:19,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:36:20,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-20 11:36:20,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 11:36:20,807 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-11-20 11:36:20,807 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2022-11-20 11:36:20,807 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 11:36:20,807 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2022-11-20 11:36:20,808 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 11:36:20,808 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-20 11:36:20,808 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 11:36:20,808 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2022-11-20 11:36:20,808 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 11:36:20,808 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-20 11:36:20,808 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 25 29) no Hoare annotation was computed. [2022-11-20 11:36:20,808 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2022-11-20 11:36:20,808 INFO L899 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed. [2022-11-20 11:36:20,809 INFO L895 garLoopResultBuilder]: At program point L25-5(lines 25 29) the Hoare annotation is: (and (< |ULTIMATE.start_foo_~i~0#1| 2147483647) (<= |ULTIMATE.start_foo_~size#1| 99) (<= |ULTIMATE.start_foo_~size#1| |ULTIMATE.start_foo_~i~0#1|) (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648)) (<= 1 |ULTIMATE.start_foo_~i~0#1|)) [2022-11-20 11:36:20,809 INFO L899 garLoopResultBuilder]: For program point L25-6(lines 25 29) no Hoare annotation was computed. [2022-11-20 11:36:20,809 INFO L895 garLoopResultBuilder]: At program point L17(lines 12 18) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~i~1#1| |ULTIMATE.start_foo_~size#1|))) (or (and (< |ULTIMATE.start_main_~i~1#1| 100) (< |ULTIMATE.start_foo_~i~0#1| 2147483647) (<= 2 |ULTIMATE.start_foo_~size#1|) (not (< |ULTIMATE.start_foo_~i~0#1| |ULTIMATE.start_foo_~size#1|)) .cse0) (and (= |ULTIMATE.start_main_~i~1#1| 0) (= |ULTIMATE.start_foo_~i~0#1| 0) .cse0) (and (<= |ULTIMATE.start_foo_~i~0#1| 1) (<= |ULTIMATE.start_main_~i~1#1| 1) (<= 1 |ULTIMATE.start_main_~i~1#1|) (<= 1 |ULTIMATE.start_foo_~i~0#1|) .cse0))) [2022-11-20 11:36:20,810 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-11-20 11:36:20,810 INFO L902 garLoopResultBuilder]: At program point L30(lines 20 31) the Hoare annotation is: true [2022-11-20 11:36:20,810 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 28) no Hoare annotation was computed. [2022-11-20 11:36:20,810 INFO L899 garLoopResultBuilder]: For program point L22-2(lines 22 24) no Hoare annotation was computed. [2022-11-20 11:36:20,810 INFO L899 garLoopResultBuilder]: For program point L22-3(line 22) no Hoare annotation was computed. [2022-11-20 11:36:20,810 INFO L899 garLoopResultBuilder]: For program point L22-4(line 22) no Hoare annotation was computed. [2022-11-20 11:36:20,810 INFO L895 garLoopResultBuilder]: At program point L22-5(lines 22 24) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_foo_~size#1| |ULTIMATE.start_foo_~i~0#1|)) (.cse1 (<= 1 |ULTIMATE.start_foo_~i~0#1|))) (or (and .cse0 (<= |ULTIMATE.start_main_~i~1#1| 1) (<= 1 |ULTIMATE.start_main_~i~1#1|) (= |ULTIMATE.start_foo_~i~0#1| 0)) (= |ULTIMATE.start_main_~i~1#1| 0) (and (<= 2 |ULTIMATE.start_main_~i~1#1|) (<= |ULTIMATE.start_foo_~i~0#1| 1) .cse0 .cse1) (and (< |ULTIMATE.start_foo_~i~0#1| 2147483647) (<= |ULTIMATE.start_foo_~size#1| 99) (not (< |ULTIMATE.start_foo_~i~0#1| |ULTIMATE.start_foo_~size#1|)) (<= 3 |ULTIMATE.start_main_~i~1#1|) .cse1))) [2022-11-20 11:36:20,810 INFO L899 garLoopResultBuilder]: For program point L22-6(lines 22 24) no Hoare annotation was computed. [2022-11-20 11:36:20,810 INFO L899 garLoopResultBuilder]: For program point L14-2(lines 14 16) no Hoare annotation was computed. [2022-11-20 11:36:20,811 INFO L899 garLoopResultBuilder]: For program point L14-3(line 14) no Hoare annotation was computed. [2022-11-20 11:36:20,811 INFO L899 garLoopResultBuilder]: For program point L14-4(line 14) no Hoare annotation was computed. [2022-11-20 11:36:20,811 INFO L895 garLoopResultBuilder]: At program point L14-5(lines 14 16) the Hoare annotation is: (let ((.cse2 (<= 1 |ULTIMATE.start_foo_~i~0#1|)) (.cse0 (= |ULTIMATE.start_foo_~i~0#1| 0)) (.cse1 (= |ULTIMATE.start_main_~i~1#1| |ULTIMATE.start_foo_~size#1|))) (or (and (<= |ULTIMATE.start_main_~i~1#1| 99) .cse0 (<= 3 |ULTIMATE.start_main_~i~1#1|) .cse1) (and (< |ULTIMATE.start_foo_~i~0#1| 2147483647) (<= |ULTIMATE.start_foo_~size#1| 99) (<= 2 |ULTIMATE.start_foo_~size#1|) .cse2 .cse1) (and (= |ULTIMATE.start_foo_~size#1| 0) .cse0 .cse1) (and (<= |ULTIMATE.start_foo_~size#1| 2) .cse0 .cse1 (<= (+ |ULTIMATE.start_foo_~i~0#1| 2) |ULTIMATE.start_main_~i~1#1|)) (and (<= |ULTIMATE.start_foo_~i~0#1| 1) (<= |ULTIMATE.start_main_~i~1#1| 1) (<= 1 |ULTIMATE.start_main_~i~1#1|) .cse2 .cse1) (and .cse0 (<= |ULTIMATE.start_foo_~size#1| (+ |ULTIMATE.start_foo_~i~0#1| 1)) (< |ULTIMATE.start_foo_~i~0#1| |ULTIMATE.start_foo_~size#1|) .cse1))) [2022-11-20 11:36:20,811 INFO L899 garLoopResultBuilder]: For program point L14-6(lines 14 16) no Hoare annotation was computed. [2022-11-20 11:36:20,819 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:36:20,823 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:36:20,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:36:20 BoogieIcfgContainer [2022-11-20 11:36:20,866 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:36:20,866 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:36:20,867 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:36:20,867 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:36:20,868 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:36:05" (3/4) ... [2022-11-20 11:36:20,874 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:36:20,889 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-20 11:36:20,889 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 11:36:20,889 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:36:20,890 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:36:20,943 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:36:20,943 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:36:20,944 INFO L158 Benchmark]: Toolchain (without parser) took 16788.87ms. Allocated memory was 201.3MB in the beginning and 293.6MB in the end (delta: 92.3MB). Free memory was 158.5MB in the beginning and 110.9MB in the end (delta: 47.6MB). Peak memory consumption was 142.9MB. Max. memory is 16.1GB. [2022-11-20 11:36:20,944 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 121.6MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:36:20,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.54ms. Allocated memory is still 201.3MB. Free memory was 158.5MB in the beginning and 148.8MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:36:20,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.51ms. Allocated memory is still 201.3MB. Free memory was 148.8MB in the beginning and 147.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:36:20,946 INFO L158 Benchmark]: Boogie Preprocessor took 32.42ms. Allocated memory is still 201.3MB. Free memory was 147.1MB in the beginning and 146.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:36:20,948 INFO L158 Benchmark]: RCFGBuilder took 495.09ms. Allocated memory is still 201.3MB. Free memory was 146.0MB in the beginning and 135.3MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:36:20,948 INFO L158 Benchmark]: TraceAbstraction took 15853.24ms. Allocated memory was 201.3MB in the beginning and 293.6MB in the end (delta: 92.3MB). Free memory was 134.6MB in the beginning and 113.0MB in the end (delta: 21.6MB). Peak memory consumption was 115.7MB. Max. memory is 16.1GB. [2022-11-20 11:36:20,949 INFO L158 Benchmark]: Witness Printer took 76.78ms. Allocated memory is still 293.6MB. Free memory was 113.0MB in the beginning and 110.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:36:20,956 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 121.6MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.54ms. Allocated memory is still 201.3MB. Free memory was 158.5MB in the beginning and 148.8MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.51ms. Allocated memory is still 201.3MB. Free memory was 148.8MB in the beginning and 147.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.42ms. Allocated memory is still 201.3MB. Free memory was 147.1MB in the beginning and 146.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 495.09ms. Allocated memory is still 201.3MB. Free memory was 146.0MB in the beginning and 135.3MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 15853.24ms. Allocated memory was 201.3MB in the beginning and 293.6MB in the end (delta: 92.3MB). Free memory was 134.6MB in the beginning and 113.0MB in the end (delta: 21.6MB). Peak memory consumption was 115.7MB. Max. memory is 16.1GB. * Witness Printer took 76.78ms. Allocated memory is still 293.6MB. Free memory was 113.0MB in the beginning and 110.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 15.7s, OverallIterations: 15, TraceHistogramMax: 15, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1122 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1122 mSDsluCounter, 1057 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 833 mSDsCounter, 118 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1848 IncrementalHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 118 mSolverCounterUnsat, 224 mSDtfsCounter, 1848 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 967 GetRequests, 704 SyntacticMatches, 18 SemanticMatches, 245 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1576 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=14, InterpolantAutomatonStates: 159, 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, 15 MinimizatonAttempts, 133 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 48 NumberOfFragments, 196 HoareAnnotationTreeSize, 5 FomulaSimplifications, 832 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 5 FomulaSimplificationsInter, 955 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 1134 NumberOfCodeBlocks, 920 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 1366 ConstructedInterpolants, 0 QuantifiedInterpolants, 3011 SizeOfPredicates, 40 NumberOfNonLiveVariables, 1285 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 32 InterpolantComputations, 8 PerfectInterpolantSequences, 3733/4155 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 6 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((((size <= i && i <= 1) && 1 <= i) && i == 0) || i == 0) || (((2 <= i && i <= 1) && size <= i) && 1 <= i)) || ((((i < 2147483647 && size <= 99) && !(i < size)) && 3 <= i) && 1 <= i) - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: (((((i < 100 && i < 2147483647) && 2 <= size) && !(i < size)) && i == size) || ((i == 0 && i == 0) && i == size)) || ((((i <= 1 && i <= 1) && 1 <= i) && 1 <= i) && i == size) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((i <= 99 && i == 0) && 3 <= i) && i == size) || ((((i < 2147483647 && size <= 99) && 2 <= size) && 1 <= i) && i == size)) || ((size == 0 && i == 0) && i == size)) || (((size <= 2 && i == 0) && i == size) && i + 2 <= i)) || ((((i <= 1 && i <= 1) && 1 <= i) && 1 <= i) && i == size)) || (((i == 0 && size <= i + 1) && i < size) && i == size) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (((i < 2147483647 && size <= 99) && size <= i) && 0 <= i + 2147483648) && 1 <= i RESULT: Ultimate proved your program to be correct! [2022-11-20 11:36:21,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b0e788-8f23-46f4-93b6-15848398acfa/bin/uautomizer-ug76WZFUDN/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