./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark13_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/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_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark13_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/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_8cc9468c-e77e-47b9-9811-9e491781cfb1/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 cf06395da4b8f86107f4d086333b3a12be01d6e25ea5b5133d532da24fef3f46 --- 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 11:52:55,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:52:55,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:52:55,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:52:55,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:52:55,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:52:55,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:52:55,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:52:55,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:52:55,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:52:55,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:52:55,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:52:55,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:52:55,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:52:55,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:52:55,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:52:55,470 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:52:55,471 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:52:55,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:52:55,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:52:55,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:52:55,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:52:55,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:52:55,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:52:55,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:52:55,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:52:55,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:52:55,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:52:55,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:52:55,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:52:55,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:52:55,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:52:55,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:52:55,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:52:55,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:52:55,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:52:55,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:52:55,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:52:55,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:52:55,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:52:55,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:52:55,499 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 11:52:55,535 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:52:55,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:52:55,535 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:52:55,536 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:52:55,537 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:52:55,537 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:52:55,538 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:52:55,538 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:52:55,538 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:52:55,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:52:55,539 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:52:55,539 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:52:55,539 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:52:55,540 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:52:55,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:52:55,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:52:55,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:52:55,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:52:55,541 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:52:55,546 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:52:55,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:52:55,547 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:52:55,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:52:55,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:52:55,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:52:55,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:52:55,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:52:55,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:52:55,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:52:55,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:52:55,551 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:52:55,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:52:55,552 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:52:55,552 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:52:55,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:52:55,552 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_8cc9468c-e77e-47b9-9811-9e491781cfb1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf06395da4b8f86107f4d086333b3a12be01d6e25ea5b5133d532da24fef3f46 [2022-11-20 11:52:55,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:52:55,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:52:55,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:52:55,929 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:52:55,930 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:52:55,931 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/loop-zilu/benchmark13_conjunctive.i [2022-11-20 11:52:58,883 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:52:59,090 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:52:59,091 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/sv-benchmarks/c/loop-zilu/benchmark13_conjunctive.i [2022-11-20 11:52:59,097 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/data/6560250a5/efbb5cbd398a40239cd29cd90a870ee3/FLAG84d56b93b [2022-11-20 11:52:59,113 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/data/6560250a5/efbb5cbd398a40239cd29cd90a870ee3 [2022-11-20 11:52:59,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:52:59,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:52:59,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:52:59,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:52:59,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:52:59,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:52:59" (1/1) ... [2022-11-20 11:52:59,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7daccbe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:59, skipping insertion in model container [2022-11-20 11:52:59,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:52:59" (1/1) ... [2022-11-20 11:52:59,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:52:59,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:52:59,301 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/sv-benchmarks/c/loop-zilu/benchmark13_conjunctive.i[873,886] [2022-11-20 11:52:59,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:52:59,320 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:52:59,331 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/sv-benchmarks/c/loop-zilu/benchmark13_conjunctive.i[873,886] [2022-11-20 11:52:59,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:52:59,347 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:52:59,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:59 WrapperNode [2022-11-20 11:52:59,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:52:59,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:52:59,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:52:59,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:52:59,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:59" (1/1) ... [2022-11-20 11:52:59,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:59" (1/1) ... [2022-11-20 11:52:59,382 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2022-11-20 11:52:59,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:52:59,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:52:59,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:52:59,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:52:59,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:59" (1/1) ... [2022-11-20 11:52:59,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:59" (1/1) ... [2022-11-20 11:52:59,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:59" (1/1) ... [2022-11-20 11:52:59,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:59" (1/1) ... [2022-11-20 11:52:59,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:59" (1/1) ... [2022-11-20 11:52:59,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:59" (1/1) ... [2022-11-20 11:52:59,400 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:59" (1/1) ... [2022-11-20 11:52:59,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:59" (1/1) ... [2022-11-20 11:52:59,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:52:59,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:52:59,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:52:59,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:52:59,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:59" (1/1) ... [2022-11-20 11:52:59,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:52:59,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:52:59,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:52:59,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:52:59,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:52:59,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:52:59,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:52:59,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:52:59,543 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:52:59,545 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:52:59,669 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:52:59,675 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:52:59,676 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:52:59,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:52:59 BoogieIcfgContainer [2022-11-20 11:52:59,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:52:59,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:52:59,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:52:59,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:52:59,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:52:59" (1/3) ... [2022-11-20 11:52:59,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0d08f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:52:59, skipping insertion in model container [2022-11-20 11:52:59,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:59" (2/3) ... [2022-11-20 11:52:59,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0d08f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:52:59, skipping insertion in model container [2022-11-20 11:52:59,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:52:59" (3/3) ... [2022-11-20 11:52:59,688 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark13_conjunctive.i [2022-11-20 11:52:59,708 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:52:59,710 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-20 11:52:59,790 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:52:59,803 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;@219762e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:52:59,804 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-20 11:52:59,808 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 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 11:52:59,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 11:52:59,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:52:59,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 11:52:59,817 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 11:52:59,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:52:59,824 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2022-11-20 11:52:59,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:52:59,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367758626] [2022-11-20 11:52:59,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:52:59,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:52:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:00,113 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 11:53:00,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:53:00,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367758626] [2022-11-20 11:53:00,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367758626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:53:00,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:53:00,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:53:00,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140885651] [2022-11-20 11:53:00,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:53:00,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:53:00,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:53:00,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:53:00,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:53:00,195 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:53:00,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:00,307 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2022-11-20 11:53:00,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:53:00,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-20 11:53:00,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:00,322 INFO L225 Difference]: With dead ends: 35 [2022-11-20 11:53:00,323 INFO L226 Difference]: Without dead ends: 16 [2022-11-20 11:53:00,325 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 11:53:00,328 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 11 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:00,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 40 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:53:00,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-20 11:53:00,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2022-11-20 11:53:00,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 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 11:53:00,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-11-20 11:53:00,362 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2022-11-20 11:53:00,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:00,363 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-11-20 11:53:00,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:53:00,364 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-11-20 11:53:00,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 11:53:00,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:00,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 11:53:00,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:53:00,366 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 11:53:00,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:00,368 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2022-11-20 11:53:00,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:53:00,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724161805] [2022-11-20 11:53:00,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:00,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:53:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:00,456 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 11:53:00,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:53:00,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724161805] [2022-11-20 11:53:00,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724161805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:53:00,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:53:00,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:53:00,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599834593] [2022-11-20 11:53:00,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:53:00,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:53:00,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:53:00,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:53:00,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:53:00,464 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:53:00,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:00,484 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-11-20 11:53:00,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:53:00,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-20 11:53:00,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:00,485 INFO L225 Difference]: With dead ends: 14 [2022-11-20 11:53:00,485 INFO L226 Difference]: Without dead ends: 13 [2022-11-20 11:53:00,486 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 11:53:00,487 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 8 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:00,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:53:00,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-20 11:53:00,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-20 11:53:00,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.3) internal successors, (13), 12 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 11:53:00,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-11-20 11:53:00,493 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 6 [2022-11-20 11:53:00,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:00,493 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-11-20 11:53:00,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:53:00,494 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-11-20 11:53:00,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 11:53:00,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:00,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:53:00,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:53:00,495 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 11:53:00,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:00,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2022-11-20 11:53:00,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:53:00,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605111271] [2022-11-20 11:53:00,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:00,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:53:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:00,573 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 11:53:00,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:53:00,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605111271] [2022-11-20 11:53:00,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605111271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:53:00,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:53:00,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:53:00,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142738992] [2022-11-20 11:53:00,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:53:00,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:53:00,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:53:00,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:53:00,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:53:00,580 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 11:53:00,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:00,606 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-11-20 11:53:00,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:53:00,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-11-20 11:53:00,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:00,607 INFO L225 Difference]: With dead ends: 17 [2022-11-20 11:53:00,607 INFO L226 Difference]: Without dead ends: 16 [2022-11-20 11:53:00,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:53:00,609 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:00,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:53:00,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-20 11:53:00,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2022-11-20 11:53:00,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 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 11:53:00,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-20 11:53:00,614 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 7 [2022-11-20 11:53:00,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:00,615 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-20 11:53:00,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 11:53:00,615 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-20 11:53:00,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 11:53:00,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:00,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:53:00,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:53:00,617 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 11:53:00,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:00,617 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2022-11-20 11:53:00,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:53:00,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413044952] [2022-11-20 11:53:00,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:00,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:53:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:00,678 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 11:53:00,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:53:00,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413044952] [2022-11-20 11:53:00,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413044952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:53:00,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:53:00,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:53:00,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698156483] [2022-11-20 11:53:00,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:53:00,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:53:00,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:53:00,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:53:00,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:53:00,682 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 11:53:00,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:00,691 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-11-20 11:53:00,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:53:00,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 11:53:00,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:00,693 INFO L225 Difference]: With dead ends: 15 [2022-11-20 11:53:00,693 INFO L226 Difference]: Without dead ends: 14 [2022-11-20 11:53:00,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:53:00,695 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:00,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:53:00,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-20 11:53:00,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-20 11:53:00,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 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 11:53:00,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-11-20 11:53:00,701 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 8 [2022-11-20 11:53:00,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:00,701 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-11-20 11:53:00,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 11:53:00,702 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-11-20 11:53:00,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 11:53:00,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:00,702 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:53:00,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:53:00,703 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 11:53:00,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:00,704 INFO L85 PathProgramCache]: Analyzing trace with hash 47508593, now seen corresponding path program 1 times [2022-11-20 11:53:00,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:53:00,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907270204] [2022-11-20 11:53:00,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:00,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:53:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:00,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:00,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:53:00,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907270204] [2022-11-20 11:53:00,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907270204] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:53:00,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032356034] [2022-11-20 11:53:00,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:00,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:53:00,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:53:00,834 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:53:00,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:53:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:00,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:53:00,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:00,951 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:00,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:53:01,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:01,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032356034] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:53:01,019 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:53:01,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-20 11:53:01,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830351262] [2022-11-20 11:53:01,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:53:01,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:53:01,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:53:01,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:53:01,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:53:01,022 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:53:01,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:01,117 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-11-20 11:53:01,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:53:01,118 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-20 11:53:01,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:01,119 INFO L225 Difference]: With dead ends: 31 [2022-11-20 11:53:01,119 INFO L226 Difference]: Without dead ends: 30 [2022-11-20 11:53:01,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:53:01,121 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 27 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:01,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 31 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:53:01,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-20 11:53:01,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2022-11-20 11:53:01,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.16) internal successors, (29), 26 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:53:01,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2022-11-20 11:53:01,127 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 10 [2022-11-20 11:53:01,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:01,127 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2022-11-20 11:53:01,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:53:01,128 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-11-20 11:53:01,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 11:53:01,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:01,128 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 11:53:01,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:01,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:53:01,334 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 11:53:01,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:01,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1588880781, now seen corresponding path program 1 times [2022-11-20 11:53:01,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:53:01,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031691539] [2022-11-20 11:53:01,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:01,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:53:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:01,386 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:01,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:53:01,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031691539] [2022-11-20 11:53:01,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031691539] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:53:01,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936124583] [2022-11-20 11:53:01,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:01,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:53:01,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:53:01,389 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:53:01,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:53:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:01,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:53:01,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:01,468 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:01,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:53:01,496 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:01,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936124583] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:53:01,496 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:53:01,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-20 11:53:01,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426830633] [2022-11-20 11:53:01,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:53:01,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:53:01,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:53:01,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:53:01,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:53:01,498 INFO L87 Difference]: Start difference. First operand 27 states and 29 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 11:53:01,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:01,524 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-11-20 11:53:01,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:53:01,524 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 12 [2022-11-20 11:53:01,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:01,525 INFO L225 Difference]: With dead ends: 30 [2022-11-20 11:53:01,525 INFO L226 Difference]: Without dead ends: 29 [2022-11-20 11:53:01,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:53:01,526 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:01,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 28 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:53:01,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-20 11:53:01,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-20 11:53:01,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:53:01,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2022-11-20 11:53:01,532 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 12 [2022-11-20 11:53:01,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:01,533 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2022-11-20 11:53:01,533 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 11:53:01,533 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2022-11-20 11:53:01,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 11:53:01,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:01,534 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1] [2022-11-20 11:53:01,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:01,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:53:01,739 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 11:53:01,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:01,740 INFO L85 PathProgramCache]: Analyzing trace with hash 584006821, now seen corresponding path program 2 times [2022-11-20 11:53:01,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:53:01,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669025439] [2022-11-20 11:53:01,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:01,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:53:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:01,935 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:01,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:53:01,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669025439] [2022-11-20 11:53:01,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669025439] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:53:01,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578688389] [2022-11-20 11:53:01,936 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:53:01,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:53:01,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:53:01,937 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:53:01,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:53:02,003 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:53:02,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:53:02,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 11:53:02,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:02,099 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:02,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:53:02,286 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:02,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578688389] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:53:02,286 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:53:02,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-11-20 11:53:02,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907100012] [2022-11-20 11:53:02,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:53:02,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 11:53:02,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:53:02,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 11:53:02,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:53:02,289 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 22 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 22 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:53:02,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:02,486 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2022-11-20 11:53:02,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-20 11:53:02,487 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 22 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-20 11:53:02,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:02,488 INFO L225 Difference]: With dead ends: 64 [2022-11-20 11:53:02,488 INFO L226 Difference]: Without dead ends: 63 [2022-11-20 11:53:02,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2022-11-20 11:53:02,489 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 71 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:02,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 55 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:53:02,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-20 11:53:02,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 57. [2022-11-20 11:53:02,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 55 states have (on average 1.1272727272727272) internal successors, (62), 56 states have internal predecessors, (62), 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 11:53:02,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions. [2022-11-20 11:53:02,498 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 62 transitions. Word has length 25 [2022-11-20 11:53:02,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:02,499 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 62 transitions. [2022-11-20 11:53:02,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 22 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:53:02,499 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 62 transitions. [2022-11-20 11:53:02,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 11:53:02,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:02,500 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-11-20 11:53:02,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-20 11:53:02,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-20 11:53:02,705 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 11:53:02,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:02,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1410159193, now seen corresponding path program 2 times [2022-11-20 11:53:02,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:53:02,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152482618] [2022-11-20 11:53:02,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:02,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:53:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:02,822 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:02,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:53:02,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152482618] [2022-11-20 11:53:02,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152482618] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:53:02,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123205552] [2022-11-20 11:53:02,823 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:53:02,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:53:02,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:53:02,824 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:53:02,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 11:53:02,888 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:53:02,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:53:02,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:53:02,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:02,957 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:02,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:53:03,075 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:03,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123205552] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:53:03,076 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:53:03,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-20 11:53:03,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580613893] [2022-11-20 11:53:03,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:53:03,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:53:03,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:53:03,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:53:03,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:53:03,078 INFO L87 Difference]: Start difference. First operand 57 states and 62 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 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 11:53:03,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:03,151 INFO L93 Difference]: Finished difference Result 60 states and 65 transitions. [2022-11-20 11:53:03,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:53:03,151 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 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) Word has length 27 [2022-11-20 11:53:03,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:03,152 INFO L225 Difference]: With dead ends: 60 [2022-11-20 11:53:03,152 INFO L226 Difference]: Without dead ends: 59 [2022-11-20 11:53:03,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:53:03,153 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 10 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:03,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 48 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:53:03,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-20 11:53:03,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-20 11:53:03,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 57 states have (on average 1.0350877192982457) internal successors, (59), 58 states have internal predecessors, (59), 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 11:53:03,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2022-11-20 11:53:03,161 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 27 [2022-11-20 11:53:03,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:03,162 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2022-11-20 11:53:03,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 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 11:53:03,162 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2022-11-20 11:53:03,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-20 11:53:03,163 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:03,163 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1, 1, 1] [2022-11-20 11:53:03,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:03,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-20 11:53:03,369 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 11:53:03,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:03,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1562182875, now seen corresponding path program 3 times [2022-11-20 11:53:03,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:53:03,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780120735] [2022-11-20 11:53:03,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:03,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:53:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:03,917 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:03,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:53:03,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780120735] [2022-11-20 11:53:03,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780120735] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:53:03,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369393135] [2022-11-20 11:53:03,918 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 11:53:03,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:53:03,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:53:03,922 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:53:03,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 11:53:04,007 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-20 11:53:04,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:53:04,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 11:53:04,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:04,138 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:04,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:53:04,799 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:04,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369393135] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:53:04,799 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:53:04,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2022-11-20 11:53:04,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888837743] [2022-11-20 11:53:04,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:53:04,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-20 11:53:04,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:53:04,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-20 11:53:04,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2022-11-20 11:53:04,802 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand has 46 states, 45 states have (on average 2.4) internal successors, (108), 46 states have internal predecessors, (108), 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 11:53:05,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:05,397 INFO L93 Difference]: Finished difference Result 130 states and 141 transitions. [2022-11-20 11:53:05,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-20 11:53:05,398 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.4) internal successors, (108), 46 states have internal predecessors, (108), 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 55 [2022-11-20 11:53:05,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:05,399 INFO L225 Difference]: With dead ends: 130 [2022-11-20 11:53:05,399 INFO L226 Difference]: Without dead ends: 129 [2022-11-20 11:53:05,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2022-11-20 11:53:05,402 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 182 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:05,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 105 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:53:05,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-11-20 11:53:05,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 117. [2022-11-20 11:53:05,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 115 states have (on average 1.1130434782608696) internal successors, (128), 116 states have internal predecessors, (128), 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 11:53:05,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 128 transitions. [2022-11-20 11:53:05,415 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 128 transitions. Word has length 55 [2022-11-20 11:53:05,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:05,415 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 128 transitions. [2022-11-20 11:53:05,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.4) internal successors, (108), 46 states have internal predecessors, (108), 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 11:53:05,416 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 128 transitions. [2022-11-20 11:53:05,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-20 11:53:05,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:05,417 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1, 1] [2022-11-20 11:53:05,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:05,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:53:05,644 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 11:53:05,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:05,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1980812327, now seen corresponding path program 3 times [2022-11-20 11:53:05,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:53:05,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436960996] [2022-11-20 11:53:05,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:05,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:53:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:05,905 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:05,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:53:05,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436960996] [2022-11-20 11:53:05,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436960996] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:53:05,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250756878] [2022-11-20 11:53:05,908 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 11:53:05,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:53:05,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:53:05,910 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:53:05,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 11:53:05,997 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-20 11:53:05,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:53:05,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 11:53:06,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:06,101 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:06,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:53:06,358 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:06,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250756878] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:53:06,359 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:53:06,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-20 11:53:06,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181318005] [2022-11-20 11:53:06,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:53:06,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-20 11:53:06,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:53:06,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-20 11:53:06,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-20 11:53:06,365 INFO L87 Difference]: Start difference. First operand 117 states and 128 transitions. Second operand has 24 states, 23 states have (on average 4.869565217391305) internal successors, (112), 24 states have internal predecessors, (112), 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 11:53:06,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:06,448 INFO L93 Difference]: Finished difference Result 120 states and 131 transitions. [2022-11-20 11:53:06,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-20 11:53:06,449 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.869565217391305) internal successors, (112), 24 states have internal predecessors, (112), 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 57 [2022-11-20 11:53:06,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:06,450 INFO L225 Difference]: With dead ends: 120 [2022-11-20 11:53:06,450 INFO L226 Difference]: Without dead ends: 119 [2022-11-20 11:53:06,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-20 11:53:06,452 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 22 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:06,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 84 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:53:06,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-20 11:53:06,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2022-11-20 11:53:06,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 117 states have (on average 1.017094017094017) internal successors, (119), 118 states have internal predecessors, (119), 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 11:53:06,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 119 transitions. [2022-11-20 11:53:06,463 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 119 transitions. Word has length 57 [2022-11-20 11:53:06,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:06,463 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 119 transitions. [2022-11-20 11:53:06,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.869565217391305) internal successors, (112), 24 states have internal predecessors, (112), 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 11:53:06,464 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 119 transitions. [2022-11-20 11:53:06,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-20 11:53:06,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:06,466 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 1, 1, 1, 1] [2022-11-20 11:53:06,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-20 11:53:06,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 11:53:06,671 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 11:53:06,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:06,672 INFO L85 PathProgramCache]: Analyzing trace with hash 708663333, now seen corresponding path program 4 times [2022-11-20 11:53:06,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:53:06,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778421533] [2022-11-20 11:53:06,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:06,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:53:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:08,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:08,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:53:08,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778421533] [2022-11-20 11:53:08,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778421533] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:53:08,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511248747] [2022-11-20 11:53:08,237 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 11:53:08,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:53:08,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:53:08,242 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:53:08,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 11:53:08,340 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 11:53:08,340 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:53:08,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-20 11:53:08,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:08,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:08,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:53:10,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:10,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511248747] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:53:10,862 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:53:10,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2022-11-20 11:53:10,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356454248] [2022-11-20 11:53:10,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:53:10,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-11-20 11:53:10,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:53:10,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-11-20 11:53:10,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2022-11-20 11:53:10,868 INFO L87 Difference]: Start difference. First operand 119 states and 119 transitions. Second operand has 94 states, 93 states have (on average 2.4516129032258065) internal successors, (228), 94 states have internal predecessors, (228), 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 11:53:12,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:12,854 INFO L93 Difference]: Finished difference Result 262 states and 285 transitions. [2022-11-20 11:53:12,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-11-20 11:53:12,854 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 2.4516129032258065) internal successors, (228), 94 states have internal predecessors, (228), 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 115 [2022-11-20 11:53:12,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:12,856 INFO L225 Difference]: With dead ends: 262 [2022-11-20 11:53:12,856 INFO L226 Difference]: Without dead ends: 261 [2022-11-20 11:53:12,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2022-11-20 11:53:12,868 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 530 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:12,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 165 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:53:12,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-11-20 11:53:12,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 237. [2022-11-20 11:53:12,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 235 states have (on average 1.1063829787234043) internal successors, (260), 236 states have internal predecessors, (260), 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 11:53:12,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 260 transitions. [2022-11-20 11:53:12,895 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 260 transitions. Word has length 115 [2022-11-20 11:53:12,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:12,897 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 260 transitions. [2022-11-20 11:53:12,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 2.4516129032258065) internal successors, (228), 94 states have internal predecessors, (228), 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 11:53:12,897 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 260 transitions. [2022-11-20 11:53:12,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-20 11:53:12,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:12,906 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1, 1, 1] [2022-11-20 11:53:12,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-20 11:53:13,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:53:13,112 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 11:53:13,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:13,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1874335449, now seen corresponding path program 4 times [2022-11-20 11:53:13,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:53:13,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137538936] [2022-11-20 11:53:13,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:13,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:53:13,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:13,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:13,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:53:13,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137538936] [2022-11-20 11:53:13,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137538936] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:53:13,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387003779] [2022-11-20 11:53:13,755 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 11:53:13,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:53:13,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:53:13,757 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:53:13,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 11:53:13,839 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 11:53:13,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:53:13,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-20 11:53:13,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:14,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:14,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:53:14,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:14,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387003779] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:53:14,956 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:53:14,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-20 11:53:14,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582449801] [2022-11-20 11:53:14,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:53:14,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-20 11:53:14,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:53:14,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-20 11:53:14,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-20 11:53:14,959 INFO L87 Difference]: Start difference. First operand 237 states and 260 transitions. Second operand has 48 states, 47 states have (on average 4.9361702127659575) internal successors, (232), 48 states have internal predecessors, (232), 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 11:53:15,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:15,128 INFO L93 Difference]: Finished difference Result 240 states and 263 transitions. [2022-11-20 11:53:15,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-20 11:53:15,128 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.9361702127659575) internal successors, (232), 48 states have internal predecessors, (232), 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 117 [2022-11-20 11:53:15,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:15,130 INFO L225 Difference]: With dead ends: 240 [2022-11-20 11:53:15,130 INFO L226 Difference]: Without dead ends: 239 [2022-11-20 11:53:15,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-20 11:53:15,132 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 69 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:15,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 158 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:53:15,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-11-20 11:53:15,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2022-11-20 11:53:15,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 237 states have (on average 1.0084388185654007) internal successors, (239), 238 states have internal predecessors, (239), 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 11:53:15,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 239 transitions. [2022-11-20 11:53:15,145 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 239 transitions. Word has length 117 [2022-11-20 11:53:15,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:15,146 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 239 transitions. [2022-11-20 11:53:15,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.9361702127659575) internal successors, (232), 48 states have internal predecessors, (232), 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 11:53:15,146 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 239 transitions. [2022-11-20 11:53:15,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-11-20 11:53:15,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:15,149 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 1, 1, 1, 1] [2022-11-20 11:53:15,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-20 11:53:15,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:53:15,356 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 11:53:15,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:15,357 INFO L85 PathProgramCache]: Analyzing trace with hash -383938011, now seen corresponding path program 5 times [2022-11-20 11:53:15,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:53:15,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931473174] [2022-11-20 11:53:15,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:15,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:53:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:20,586 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:20,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:53:20,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931473174] [2022-11-20 11:53:20,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931473174] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:53:20,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673858368] [2022-11-20 11:53:20,587 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-20 11:53:20,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:53:20,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:53:20,588 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:53:20,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 11:53:20,784 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-20 11:53:20,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:53:20,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 95 conjunts are in the unsatisfiable core [2022-11-20 11:53:20,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:21,176 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:21,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:53:28,996 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:28,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673858368] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:53:28,996 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:53:28,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2022-11-20 11:53:28,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290794398] [2022-11-20 11:53:28,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:53:28,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-11-20 11:53:28,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:53:29,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-11-20 11:53:29,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2022-11-20 11:53:29,009 INFO L87 Difference]: Start difference. First operand 239 states and 239 transitions. Second operand has 190 states, 189 states have (on average 2.4761904761904763) internal successors, (468), 190 states have internal predecessors, (468), 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 11:53:35,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:35,802 INFO L93 Difference]: Finished difference Result 526 states and 573 transitions. [2022-11-20 11:53:35,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-11-20 11:53:35,803 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 2.4761904761904763) internal successors, (468), 190 states have internal predecessors, (468), 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 235 [2022-11-20 11:53:35,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:35,806 INFO L225 Difference]: With dead ends: 526 [2022-11-20 11:53:35,806 INFO L226 Difference]: Without dead ends: 525 [2022-11-20 11:53:35,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17206 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=22608, Invalid=57764, Unknown=0, NotChecked=0, Total=80372 [2022-11-20 11:53:35,815 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 1333 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:35,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1333 Valid, 264 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:53:35,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-11-20 11:53:35,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 477. [2022-11-20 11:53:35,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 475 states have (on average 1.1031578947368421) internal successors, (524), 476 states have internal predecessors, (524), 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 11:53:35,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 524 transitions. [2022-11-20 11:53:35,833 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 524 transitions. Word has length 235 [2022-11-20 11:53:35,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:35,833 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 524 transitions. [2022-11-20 11:53:35,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 2.4761904761904763) internal successors, (468), 190 states have internal predecessors, (468), 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 11:53:35,834 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 524 transitions. [2022-11-20 11:53:35,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-20 11:53:35,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:35,838 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 1, 1, 1, 1] [2022-11-20 11:53:35,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:36,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:53:36,046 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 11:53:36,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:36,047 INFO L85 PathProgramCache]: Analyzing trace with hash 402760487, now seen corresponding path program 5 times [2022-11-20 11:53:36,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:53:36,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816124994] [2022-11-20 11:53:36,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:36,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:53:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:37,964 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:37,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:53:37,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816124994] [2022-11-20 11:53:37,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816124994] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:53:37,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266998810] [2022-11-20 11:53:37,965 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-20 11:53:37,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:53:37,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:53:37,966 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:53:37,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-20 11:53:38,145 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-20 11:53:38,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:53:38,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-20 11:53:38,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:38,473 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:38,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:53:41,553 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:41,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266998810] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:53:41,553 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:53:41,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-11-20 11:53:41,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080025606] [2022-11-20 11:53:41,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:53:41,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-20 11:53:41,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:53:41,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-20 11:53:41,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-20 11:53:41,558 INFO L87 Difference]: Start difference. First operand 477 states and 524 transitions. Second operand has 96 states, 95 states have (on average 4.968421052631579) internal successors, (472), 96 states have internal predecessors, (472), 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 11:53:41,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:41,973 INFO L93 Difference]: Finished difference Result 480 states and 527 transitions. [2022-11-20 11:53:41,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-20 11:53:41,974 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.968421052631579) internal successors, (472), 96 states have internal predecessors, (472), 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 237 [2022-11-20 11:53:41,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:41,975 INFO L225 Difference]: With dead ends: 480 [2022-11-20 11:53:41,975 INFO L226 Difference]: Without dead ends: 479 [2022-11-20 11:53:41,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-20 11:53:41,976 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 94 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:41,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 304 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:53:41,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-11-20 11:53:41,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 479. [2022-11-20 11:53:41,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 477 states have (on average 1.0041928721174005) internal successors, (479), 478 states have internal predecessors, (479), 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 11:53:41,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 479 transitions. [2022-11-20 11:53:41,993 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 479 transitions. Word has length 237 [2022-11-20 11:53:41,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:41,994 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 479 transitions. [2022-11-20 11:53:41,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.968421052631579) internal successors, (472), 96 states have internal predecessors, (472), 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 11:53:41,994 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 479 transitions. [2022-11-20 11:53:42,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2022-11-20 11:53:42,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:42,004 INFO L195 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 1, 1, 1, 1] [2022-11-20 11:53:42,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:42,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-20 11:53:42,210 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 11:53:42,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:42,210 INFO L85 PathProgramCache]: Analyzing trace with hash 311166501, now seen corresponding path program 6 times [2022-11-20 11:53:42,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:53:42,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48286937] [2022-11-20 11:53:42,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:42,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:53:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:01,506 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:54:01,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:54:01,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48286937] [2022-11-20 11:54:01,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48286937] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:54:01,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879956179] [2022-11-20 11:54:01,507 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-20 11:54:01,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:54:01,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:54:01,508 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:54:01,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-20 11:54:01,956 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-11-20 11:54:01,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:54:01,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 191 conjunts are in the unsatisfiable core [2022-11-20 11:54:01,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:54:02,725 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:54:02,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:54:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:54:32,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879956179] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:54:32,453 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:54:32,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 381 [2022-11-20 11:54:32,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555004133] [2022-11-20 11:54:32,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:54:32,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2022-11-20 11:54:32,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:54:32,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2022-11-20 11:54:32,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2022-11-20 11:54:32,477 INFO L87 Difference]: Start difference. First operand 479 states and 479 transitions. Second operand has 382 states, 381 states have (on average 2.4881889763779528) internal successors, (948), 382 states have internal predecessors, (948), 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 11:55:04,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:04,312 INFO L93 Difference]: Finished difference Result 1054 states and 1149 transitions. [2022-11-20 11:55:04,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2022-11-20 11:55:04,313 INFO L78 Accepts]: Start accepts. Automaton has has 382 states, 381 states have (on average 2.4881889763779528) internal successors, (948), 382 states have internal predecessors, (948), 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 475 [2022-11-20 11:55:04,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:04,317 INFO L225 Difference]: With dead ends: 1054 [2022-11-20 11:55:04,317 INFO L226 Difference]: Without dead ends: 1053 [2022-11-20 11:55:04,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1329 GetRequests, 759 SyntacticMatches, 0 SemanticMatches, 570 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71254 ImplicationChecksByTransitivity, 60.4s TimeCoverageRelationStatistics Valid=91296, Invalid=235316, Unknown=0, NotChecked=0, Total=326612 [2022-11-20 11:55:04,340 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2630 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2630 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:04,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2630 Valid, 510 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 11:55:04,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2022-11-20 11:55:04,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 957. [2022-11-20 11:55:04,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 955 states have (on average 1.1015706806282723) internal successors, (1052), 956 states have internal predecessors, (1052), 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 11:55:04,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1052 transitions. [2022-11-20 11:55:04,382 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1052 transitions. Word has length 475 [2022-11-20 11:55:04,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:04,383 INFO L495 AbstractCegarLoop]: Abstraction has 957 states and 1052 transitions. [2022-11-20 11:55:04,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 381 states have (on average 2.4881889763779528) internal successors, (948), 382 states have internal predecessors, (948), 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 11:55:04,385 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1052 transitions. [2022-11-20 11:55:04,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2022-11-20 11:55:04,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:04,397 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 1, 1, 1, 1] [2022-11-20 11:55:04,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:55:04,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-20 11:55:04,603 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 11:55:04,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:04,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1616701657, now seen corresponding path program 6 times [2022-11-20 11:55:04,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:04,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320187997] [2022-11-20 11:55:04,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:04,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:11,599 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:55:11,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:11,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320187997] [2022-11-20 11:55:11,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320187997] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:55:11,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758653179] [2022-11-20 11:55:11,601 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-20 11:55:11,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:55:11,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:55:11,606 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:55:11,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-20 11:55:12,016 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-11-20 11:55:12,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:55:12,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-20 11:55:12,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:55:12,732 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:55:12,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:55:24,167 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:55:24,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758653179] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:55:24,167 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:55:24,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-11-20 11:55:24,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968064615] [2022-11-20 11:55:24,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:55:24,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-11-20 11:55:24,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:24,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-11-20 11:55:24,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-20 11:55:24,180 INFO L87 Difference]: Start difference. First operand 957 states and 1052 transitions. Second operand has 192 states, 191 states have (on average 4.984293193717278) internal successors, (952), 192 states have internal predecessors, (952), 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 11:55:25,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:25,901 INFO L93 Difference]: Finished difference Result 960 states and 1055 transitions. [2022-11-20 11:55:25,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-11-20 11:55:25,902 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 4.984293193717278) internal successors, (952), 192 states have internal predecessors, (952), 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 477 [2022-11-20 11:55:25,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:25,907 INFO L225 Difference]: With dead ends: 960 [2022-11-20 11:55:25,907 INFO L226 Difference]: Without dead ends: 959 [2022-11-20 11:55:25,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1048 GetRequests, 858 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-20 11:55:25,911 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 190 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:25,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 596 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:55:25,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-11-20 11:55:25,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 959. [2022-11-20 11:55:25,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 957 states have (on average 1.0020898641588296) internal successors, (959), 958 states have internal predecessors, (959), 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 11:55:25,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 959 transitions. [2022-11-20 11:55:25,943 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 959 transitions. Word has length 477 [2022-11-20 11:55:25,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:25,944 INFO L495 AbstractCegarLoop]: Abstraction has 959 states and 959 transitions. [2022-11-20 11:55:25,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 4.984293193717278) internal successors, (952), 192 states have internal predecessors, (952), 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 11:55:25,945 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 959 transitions. [2022-11-20 11:55:25,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2022-11-20 11:55:25,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:25,954 INFO L195 NwaCegarLoop]: trace histogram [191, 190, 190, 190, 190, 1, 1, 1, 1] [2022-11-20 11:55:25,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-20 11:55:26,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-20 11:55:26,161 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 11:55:26,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:26,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1814097445, now seen corresponding path program 7 times [2022-11-20 11:55:26,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:26,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80125172] [2022-11-20 11:55:26,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:26,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:27,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:58,472 INFO L134 CoverageAnalysis]: Checked inductivity of 90155 backedges. 0 proven. 90155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:56:58,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:56:58,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80125172] [2022-11-20 11:56:58,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80125172] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:56:58,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595190905] [2022-11-20 11:56:58,474 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-20 11:56:58,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:56:58,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:56:58,482 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:56:58,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-20 11:56:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:58,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 2125 conjuncts, 383 conjunts are in the unsatisfiable core [2022-11-20 11:56:58,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:00,453 INFO L134 CoverageAnalysis]: Checked inductivity of 90155 backedges. 0 proven. 90155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:00,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:58:58,653 INFO L134 CoverageAnalysis]: Checked inductivity of 90155 backedges. 0 proven. 90155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:58:58,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595190905] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:58:58,654 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:58:58,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [383, 383, 383] total 765 [2022-11-20 11:58:58,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566538372] [2022-11-20 11:58:58,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:58:58,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 766 states [2022-11-20 11:58:58,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:58:58,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 766 interpolants. [2022-11-20 11:58:58,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147071, Invalid=438919, Unknown=0, NotChecked=0, Total=585990 [2022-11-20 11:58:58,727 INFO L87 Difference]: Start difference. First operand 959 states and 959 transitions. Second operand has 766 states, 765 states have (on average 2.4941176470588236) internal successors, (1908), 766 states have internal predecessors, (1908), 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 12:02:53,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:53,690 INFO L93 Difference]: Finished difference Result 2110 states and 2301 transitions. [2022-11-20 12:02:53,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 767 states. [2022-11-20 12:02:53,692 INFO L78 Accepts]: Start accepts. Automaton has has 766 states, 765 states have (on average 2.4941176470588236) internal successors, (1908), 766 states have internal predecessors, (1908), 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 955 [2022-11-20 12:02:53,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:53,699 INFO L225 Difference]: With dead ends: 2110 [2022-11-20 12:02:53,700 INFO L226 Difference]: Without dead ends: 2109 [2022-11-20 12:02:53,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2673 GetRequests, 1527 SyntacticMatches, 0 SemanticMatches, 1146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289942 ImplicationChecksByTransitivity, 243.7s TimeCoverageRelationStatistics Valid=366912, Invalid=949844, Unknown=0, NotChecked=0, Total=1316756 [2022-11-20 12:02:53,796 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 5909 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 1941 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5909 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 2138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 1941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:53,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5909 Valid, 1021 Invalid, 2138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 1941 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 12:02:53,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2109 states. [2022-11-20 12:02:54,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2109 to 1917. [2022-11-20 12:02:54,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1917 states, 1915 states have (on average 1.1007832898172323) internal successors, (2108), 1916 states have internal predecessors, (2108), 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 12:02:54,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 2108 transitions. [2022-11-20 12:02:54,058 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 2108 transitions. Word has length 955 [2022-11-20 12:02:54,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:54,059 INFO L495 AbstractCegarLoop]: Abstraction has 1917 states and 2108 transitions. [2022-11-20 12:02:54,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 766 states, 765 states have (on average 2.4941176470588236) internal successors, (1908), 766 states have internal predecessors, (1908), 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 12:02:54,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 2108 transitions. [2022-11-20 12:02:54,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 958 [2022-11-20 12:02:54,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:54,069 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 190, 190, 1, 1, 1, 1] [2022-11-20 12:02:54,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-20 12:02:54,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-20 12:02:54,278 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 12:02:54,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:54,279 INFO L85 PathProgramCache]: Analyzing trace with hash -409075929, now seen corresponding path program 7 times [2022-11-20 12:02:54,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:02:54,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501761951] [2022-11-20 12:02:54,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:54,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:02:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:03:24,289 INFO L134 CoverageAnalysis]: Checked inductivity of 90535 backedges. 0 proven. 90535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:03:24,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:03:24,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501761951] [2022-11-20 12:03:24,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501761951] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:03:24,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931187373] [2022-11-20 12:03:24,290 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-20 12:03:24,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:03:24,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:03:24,294 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:03:24,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-20 12:03:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:03:24,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 2129 conjuncts, 192 conjunts are in the unsatisfiable core [2022-11-20 12:03:24,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:03:26,193 INFO L134 CoverageAnalysis]: Checked inductivity of 90535 backedges. 0 proven. 90535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:03:26,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:04:10,500 INFO L134 CoverageAnalysis]: Checked inductivity of 90535 backedges. 0 proven. 90535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:10,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931187373] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:04:10,501 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:04:10,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-11-20 12:04:10,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940978814] [2022-11-20 12:04:10,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:04:10,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-11-20 12:04:10,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:10,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-11-20 12:04:10,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-11-20 12:04:10,533 INFO L87 Difference]: Start difference. First operand 1917 states and 2108 transitions. Second operand has 384 states, 383 states have (on average 4.992167101827676) internal successors, (1912), 384 states have internal predecessors, (1912), 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 12:04:18,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:04:18,549 INFO L93 Difference]: Finished difference Result 1920 states and 2111 transitions. [2022-11-20 12:04:18,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-11-20 12:04:18,550 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 4.992167101827676) internal successors, (1912), 384 states have internal predecessors, (1912), 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 957 [2022-11-20 12:04:18,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:04:18,556 INFO L225 Difference]: With dead ends: 1920 [2022-11-20 12:04:18,556 INFO L226 Difference]: Without dead ends: 1919 [2022-11-20 12:04:18,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2104 GetRequests, 1722 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 57.1s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-11-20 12:04:18,568 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 573 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:04:18,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 1170 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 12:04:18,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2022-11-20 12:04:18,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 1919. [2022-11-20 12:04:18,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1919 states, 1917 states have (on average 1.0010432968179448) internal successors, (1919), 1918 states have internal predecessors, (1919), 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 12:04:18,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1919 states to 1919 states and 1919 transitions. [2022-11-20 12:04:18,624 INFO L78 Accepts]: Start accepts. Automaton has 1919 states and 1919 transitions. Word has length 957 [2022-11-20 12:04:18,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:04:18,626 INFO L495 AbstractCegarLoop]: Abstraction has 1919 states and 1919 transitions. [2022-11-20 12:04:18,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 4.992167101827676) internal successors, (1912), 384 states have internal predecessors, (1912), 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 12:04:18,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1919 states and 1919 transitions. [2022-11-20 12:04:18,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1916 [2022-11-20 12:04:18,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:04:18,655 INFO L195 NwaCegarLoop]: trace histogram [383, 382, 382, 382, 382, 1, 1, 1, 1] [2022-11-20 12:04:18,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-20 12:04:18,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc9468c-e77e-47b9-9811-9e491781cfb1/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-20 12:04:18,864 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 12:04:18,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:18,864 INFO L85 PathProgramCache]: Analyzing trace with hash -97862107, now seen corresponding path program 8 times [2022-11-20 12:04:18,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:18,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286084139] [2022-11-20 12:04:18,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:18,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat