./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0232_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0232_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a --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 f7b1141c3157e34a4974729c197a93a4b99ad75fc020122df5d99d43bcc85e27 --- 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-b5237d8 [2022-11-21 16:33:09,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:33:09,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:33:09,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:33:09,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:33:09,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:33:09,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:33:09,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:33:09,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:33:09,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:33:09,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:33:09,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:33:09,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:33:09,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:33:09,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:33:09,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:33:09,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:33:09,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:33:09,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:33:09,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:33:09,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:33:09,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:33:09,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:33:09,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:33:09,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:33:09,496 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:33:09,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:33:09,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:33:09,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:33:09,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:33:09,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:33:09,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:33:09,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:33:09,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:33:09,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:33:09,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:33:09,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:33:09,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:33:09,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:33:09,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:33:09,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:33:09,513 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 16:33:09,539 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:33:09,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:33:09,540 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:33:09,540 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:33:09,541 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:33:09,541 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:33:09,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:33:09,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:33:09,543 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:33:09,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:33:09,543 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:33:09,544 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:33:09,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:33:09,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:33:09,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:33:09,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:33:09,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:33:09,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:33:09,545 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 16:33:09,545 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:33:09,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:33:09,546 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:33:09,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:33:09,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:33:09,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:33:09,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:33:09,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:33:09,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:33:09,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:33:09,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:33:09,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:33:09,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:33:09,548 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:33:09,549 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:33:09,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:33:09,549 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_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7b1141c3157e34a4974729c197a93a4b99ad75fc020122df5d99d43bcc85e27 [2022-11-21 16:33:09,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:33:09,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:33:09,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:33:09,798 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:33:09,799 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:33:09,800 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/list-ext-properties/test-0232_1-2.i [2022-11-21 16:33:12,942 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:33:13,281 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:33:13,282 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/sv-benchmarks/c/list-ext-properties/test-0232_1-2.i [2022-11-21 16:33:13,294 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/data/d3b7b1f7b/f959445775cf41388bd8c84958a51846/FLAG8529ef8a7 [2022-11-21 16:33:13,311 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/data/d3b7b1f7b/f959445775cf41388bd8c84958a51846 [2022-11-21 16:33:13,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:33:13,316 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:33:13,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:33:13,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:33:13,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:33:13,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:33:13" (1/1) ... [2022-11-21 16:33:13,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@530aff0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:13, skipping insertion in model container [2022-11-21 16:33:13,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:33:13" (1/1) ... [2022-11-21 16:33:13,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:33:13,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:33:13,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:33:13,810 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:33:13,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:33:13,892 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:33:13,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:13 WrapperNode [2022-11-21 16:33:13,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:33:13,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:33:13,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:33:13,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:33:13,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:13" (1/1) ... [2022-11-21 16:33:13,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:13" (1/1) ... [2022-11-21 16:33:13,967 INFO L138 Inliner]: procedures = 126, calls = 33, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 96 [2022-11-21 16:33:13,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:33:13,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:33:13,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:33:13,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:33:13,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:13" (1/1) ... [2022-11-21 16:33:13,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:13" (1/1) ... [2022-11-21 16:33:13,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:13" (1/1) ... [2022-11-21 16:33:13,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:13" (1/1) ... [2022-11-21 16:33:13,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:13" (1/1) ... [2022-11-21 16:33:14,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:13" (1/1) ... [2022-11-21 16:33:14,011 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:13" (1/1) ... [2022-11-21 16:33:14,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:13" (1/1) ... [2022-11-21 16:33:14,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:33:14,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:33:14,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:33:14,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:33:14,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:13" (1/1) ... [2022-11-21 16:33:14,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:33:14,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:33:14,070 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:33:14,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:33:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:33:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:33:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:33:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:33:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 16:33:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:33:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 16:33:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:33:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:33:14,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:33:14,318 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:33:14,320 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:33:14,656 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:33:14,677 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:33:14,678 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 16:33:14,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:33:14 BoogieIcfgContainer [2022-11-21 16:33:14,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:33:14,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:33:14,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:33:14,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:33:14,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:33:13" (1/3) ... [2022-11-21 16:33:14,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4678985b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:33:14, skipping insertion in model container [2022-11-21 16:33:14,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:13" (2/3) ... [2022-11-21 16:33:14,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4678985b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:33:14, skipping insertion in model container [2022-11-21 16:33:14,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:33:14" (3/3) ... [2022-11-21 16:33:14,695 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0232_1-2.i [2022-11-21 16:33:14,725 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:33:14,726 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-21 16:33:14,800 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:33:14,808 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;@6330f4b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:33:14,808 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-21 16:33:14,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:14,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 16:33:14,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:14,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-21 16:33:14,835 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 16:33:14,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:14,841 INFO L85 PathProgramCache]: Analyzing trace with hash 925636, now seen corresponding path program 1 times [2022-11-21 16:33:14,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:33:14,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571314506] [2022-11-21 16:33:14,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:14,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:33:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:15,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:15,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:33:15,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571314506] [2022-11-21 16:33:15,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571314506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:33:15,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:33:15,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:33:15,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428710730] [2022-11-21 16:33:15,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:33:15,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:33:15,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:33:15,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:33:15,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:33:15,231 INFO L87 Difference]: Start difference. First operand has 30 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-21 16:33:15,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:15,293 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2022-11-21 16:33:15,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:33:15,297 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-21 16:33:15,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:15,307 INFO L225 Difference]: With dead ends: 49 [2022-11-21 16:33:15,307 INFO L226 Difference]: Without dead ends: 29 [2022-11-21 16:33:15,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:33:15,315 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 3 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:15,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 85 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:33:15,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-21 16:33:15,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-21 16:33:15,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 28 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:15,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2022-11-21 16:33:15,363 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 4 [2022-11-21 16:33:15,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:15,364 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-11-21 16:33:15,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-21 16:33:15,365 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2022-11-21 16:33:15,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 16:33:15,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:15,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:15,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:33:15,368 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 16:33:15,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:15,370 INFO L85 PathProgramCache]: Analyzing trace with hash 262867306, now seen corresponding path program 1 times [2022-11-21 16:33:15,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:33:15,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033608018] [2022-11-21 16:33:15,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:15,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:33:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:15,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:15,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:33:15,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033608018] [2022-11-21 16:33:15,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033608018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:33:15,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:33:15,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:33:15,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363636561] [2022-11-21 16:33:15,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:33:15,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:33:15,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:33:15,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:33:15,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:33:15,870 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:16,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:16,019 INFO L93 Difference]: Finished difference Result 56 states and 63 transitions. [2022-11-21 16:33:16,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:33:16,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-21 16:33:16,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:16,023 INFO L225 Difference]: With dead ends: 56 [2022-11-21 16:33:16,023 INFO L226 Difference]: Without dead ends: 32 [2022-11-21 16:33:16,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:33:16,032 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 5 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:16,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 93 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:33:16,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-21 16:33:16,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2022-11-21 16:33:16,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.5) internal successors, (33), 29 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:16,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2022-11-21 16:33:16,038 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 9 [2022-11-21 16:33:16,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:16,039 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2022-11-21 16:33:16,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:16,040 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2022-11-21 16:33:16,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 16:33:16,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:16,040 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:16,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:33:16,041 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 16:33:16,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:16,042 INFO L85 PathProgramCache]: Analyzing trace with hash 262926888, now seen corresponding path program 1 times [2022-11-21 16:33:16,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:33:16,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828844033] [2022-11-21 16:33:16,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:16,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:33:16,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:16,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:16,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:33:16,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828844033] [2022-11-21 16:33:16,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828844033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:33:16,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:33:16,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:33:16,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301238014] [2022-11-21 16:33:16,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:33:16,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:33:16,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:33:16,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:33:16,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:33:16,163 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:16,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:16,202 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2022-11-21 16:33:16,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:33:16,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-21 16:33:16,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:16,204 INFO L225 Difference]: With dead ends: 36 [2022-11-21 16:33:16,204 INFO L226 Difference]: Without dead ends: 34 [2022-11-21 16:33:16,205 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 [2022-11-21 16:33:16,206 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:16,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 70 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:33:16,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-21 16:33:16,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-21 16:33:16,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 33 states have internal predecessors, (37), 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) [2022-11-21 16:33:16,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-11-21 16:33:16,213 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 9 [2022-11-21 16:33:16,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:16,214 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-11-21 16:33:16,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:16,215 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-11-21 16:33:16,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 16:33:16,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:16,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:16,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:33:16,216 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 16:33:16,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:16,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1061283570, now seen corresponding path program 1 times [2022-11-21 16:33:16,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:33:16,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137586472] [2022-11-21 16:33:16,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:16,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:33:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:16,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:16,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:33:16,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137586472] [2022-11-21 16:33:16,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137586472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:33:16,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:33:16,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:33:16,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324094301] [2022-11-21 16:33:16,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:33:16,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:33:16,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:33:16,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:33:16,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:33:16,432 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 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) [2022-11-21 16:33:16,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:16,569 INFO L93 Difference]: Finished difference Result 58 states and 64 transitions. [2022-11-21 16:33:16,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:33:16,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 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) Word has length 14 [2022-11-21 16:33:16,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:16,574 INFO L225 Difference]: With dead ends: 58 [2022-11-21 16:33:16,574 INFO L226 Difference]: Without dead ends: 57 [2022-11-21 16:33:16,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:33:16,580 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 32 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:16,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 93 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:33:16,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-21 16:33:16,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 38. [2022-11-21 16:33:16,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 37 states have internal predecessors, (43), 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) [2022-11-21 16:33:16,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2022-11-21 16:33:16,588 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 14 [2022-11-21 16:33:16,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:16,588 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2022-11-21 16:33:16,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 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) [2022-11-21 16:33:16,589 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2022-11-21 16:33:16,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 16:33:16,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:16,590 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:16,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:33:16,591 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 16:33:16,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:16,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1061284532, now seen corresponding path program 1 times [2022-11-21 16:33:16,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:33:16,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47347723] [2022-11-21 16:33:16,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:16,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:33:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:16,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:16,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:33:16,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47347723] [2022-11-21 16:33:16,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47347723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:33:16,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:33:16,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:33:16,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619804939] [2022-11-21 16:33:16,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:33:16,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:33:16,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:33:16,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:33:16,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:33:16,700 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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) [2022-11-21 16:33:16,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:16,735 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-11-21 16:33:16,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:33:16,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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) Word has length 14 [2022-11-21 16:33:16,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:16,739 INFO L225 Difference]: With dead ends: 38 [2022-11-21 16:33:16,739 INFO L226 Difference]: Without dead ends: 37 [2022-11-21 16:33:16,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:33:16,741 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 6 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 68 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 [2022-11-21 16:33:16,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 68 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:33:16,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-21 16:33:16,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-21 16:33:16,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 30 states have (on average 1.4) internal successors, (42), 36 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:16,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2022-11-21 16:33:16,762 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 14 [2022-11-21 16:33:16,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:16,763 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2022-11-21 16:33:16,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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) [2022-11-21 16:33:16,764 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2022-11-21 16:33:16,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-21 16:33:16,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:16,770 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:16,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:33:16,772 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 16:33:16,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:16,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1459947628, now seen corresponding path program 1 times [2022-11-21 16:33:16,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:33:16,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160573880] [2022-11-21 16:33:16,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:16,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:33:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:16,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:16,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:33:16,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160573880] [2022-11-21 16:33:16,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160573880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:33:16,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:33:16,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:33:16,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507939645] [2022-11-21 16:33:16,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:33:16,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:33:16,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:33:16,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:33:16,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:33:16,853 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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) [2022-11-21 16:33:16,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:16,863 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2022-11-21 16:33:16,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:33:16,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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) Word has length 15 [2022-11-21 16:33:16,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:16,865 INFO L225 Difference]: With dead ends: 37 [2022-11-21 16:33:16,865 INFO L226 Difference]: Without dead ends: 36 [2022-11-21 16:33:16,865 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 [2022-11-21 16:33:16,866 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:16,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 46 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:33:16,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-21 16:33:16,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-21 16:33:16,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 35 states have internal predecessors, (41), 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) [2022-11-21 16:33:16,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2022-11-21 16:33:16,871 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 15 [2022-11-21 16:33:16,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:16,872 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2022-11-21 16:33:16,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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) [2022-11-21 16:33:16,872 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2022-11-21 16:33:16,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-21 16:33:16,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:16,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:16,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:33:16,874 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 16:33:16,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:16,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1459941446, now seen corresponding path program 1 times [2022-11-21 16:33:16,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:33:16,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745168651] [2022-11-21 16:33:16,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:16,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:33:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:16,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:16,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:33:16,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745168651] [2022-11-21 16:33:16,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745168651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:33:16,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:33:16,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:33:16,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128079214] [2022-11-21 16:33:16,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:33:16,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:33:16,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:33:16,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:33:16,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:33:16,951 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-21 16:33:16,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:16,997 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2022-11-21 16:33:16,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:33:16,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) Word has length 15 [2022-11-21 16:33:16,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:17,000 INFO L225 Difference]: With dead ends: 52 [2022-11-21 16:33:17,001 INFO L226 Difference]: Without dead ends: 47 [2022-11-21 16:33:17,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:33:17,004 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 20 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:17,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 87 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:33:17,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-21 16:33:17,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 36. [2022-11-21 16:33:17,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 35 states have internal predecessors, (40), 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) [2022-11-21 16:33:17,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2022-11-21 16:33:17,018 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 15 [2022-11-21 16:33:17,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:17,019 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2022-11-21 16:33:17,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-21 16:33:17,019 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2022-11-21 16:33:17,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-21 16:33:17,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:17,021 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:17,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:33:17,021 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 16:33:17,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:17,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1459917836, now seen corresponding path program 1 times [2022-11-21 16:33:17,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:33:17,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256384453] [2022-11-21 16:33:17,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:17,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:33:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:17,129 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:17,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:33:17,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256384453] [2022-11-21 16:33:17,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256384453] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:33:17,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358075574] [2022-11-21 16:33:17,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:17,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:33:17,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:33:17,134 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:33:17,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 16:33:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:17,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:33:17,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:33:17,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:17,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:33:17,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358075574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:33:17,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:33:17,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-11-21 16:33:17,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310619936] [2022-11-21 16:33:17,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:33:17,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:33:17,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:33:17,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:33:17,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:33:17,384 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-21 16:33:17,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:17,429 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2022-11-21 16:33:17,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:33:17,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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) Word has length 15 [2022-11-21 16:33:17,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:17,434 INFO L225 Difference]: With dead ends: 36 [2022-11-21 16:33:17,434 INFO L226 Difference]: Without dead ends: 35 [2022-11-21 16:33:17,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:33:17,438 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 39 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:17,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 43 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:33:17,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-21 16:33:17,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-21 16:33:17,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.3) internal successors, (39), 34 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:17,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2022-11-21 16:33:17,455 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 15 [2022-11-21 16:33:17,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:17,456 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2022-11-21 16:33:17,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-21 16:33:17,456 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2022-11-21 16:33:17,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-21 16:33:17,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:17,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:17,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 16:33:17,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:33:17,682 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 16:33:17,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:17,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1444637878, now seen corresponding path program 1 times [2022-11-21 16:33:17,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:33:17,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075752505] [2022-11-21 16:33:17,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:17,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:33:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:17,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:17,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:33:17,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075752505] [2022-11-21 16:33:17,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075752505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:33:17,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:33:17,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:33:17,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029001206] [2022-11-21 16:33:17,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:33:17,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:33:17,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:33:17,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:33:17,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:33:17,848 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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) [2022-11-21 16:33:17,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:17,938 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2022-11-21 16:33:17,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:33:17,939 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-21 16:33:17,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:17,940 INFO L225 Difference]: With dead ends: 52 [2022-11-21 16:33:17,940 INFO L226 Difference]: Without dead ends: 43 [2022-11-21 16:33:17,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:33:17,944 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 22 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:17,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 90 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:33:17,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-21 16:33:17,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 33. [2022-11-21 16:33:17,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.25) internal successors, (35), 32 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:17,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2022-11-21 16:33:17,953 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 17 [2022-11-21 16:33:17,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:17,954 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2022-11-21 16:33:17,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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) [2022-11-21 16:33:17,954 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-11-21 16:33:17,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-21 16:33:17,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:17,956 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:17,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:33:17,956 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 16:33:17,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:17,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1529834374, now seen corresponding path program 1 times [2022-11-21 16:33:17,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:33:17,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099859470] [2022-11-21 16:33:17,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:17,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:33:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:18,136 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:18,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:33:18,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099859470] [2022-11-21 16:33:18,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099859470] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:33:18,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729472661] [2022-11-21 16:33:18,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:18,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:33:18,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:33:18,139 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:33:18,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 16:33:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:18,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:33:18,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:33:18,352 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:18,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:33:18,434 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:18,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729472661] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:33:18,439 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:33:18,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-21 16:33:18,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000576643] [2022-11-21 16:33:18,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:33:18,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 16:33:18,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:33:18,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 16:33:18,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:33:18,442 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 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) [2022-11-21 16:33:18,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:18,597 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2022-11-21 16:33:18,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 16:33:18,598 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 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 19 [2022-11-21 16:33:18,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:18,598 INFO L225 Difference]: With dead ends: 73 [2022-11-21 16:33:18,599 INFO L226 Difference]: Without dead ends: 72 [2022-11-21 16:33:18,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-11-21 16:33:18,600 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 54 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:18,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 101 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:33:18,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-21 16:33:18,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 60. [2022-11-21 16:33:18,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 59 states have internal predecessors, (69), 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) [2022-11-21 16:33:18,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2022-11-21 16:33:18,619 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 19 [2022-11-21 16:33:18,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:18,621 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2022-11-21 16:33:18,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 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) [2022-11-21 16:33:18,622 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2022-11-21 16:33:18,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-21 16:33:18,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:18,623 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:18,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 16:33:18,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-21 16:33:18,843 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 16:33:18,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:18,844 INFO L85 PathProgramCache]: Analyzing trace with hash -180225285, now seen corresponding path program 1 times [2022-11-21 16:33:18,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:33:18,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975436591] [2022-11-21 16:33:18,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:18,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:33:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:18,994 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:18,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:33:18,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975436591] [2022-11-21 16:33:18,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975436591] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:33:18,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189509925] [2022-11-21 16:33:18,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:18,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:33:18,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:33:18,999 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:33:19,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 16:33:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:19,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:33:19,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:33:19,247 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:19,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:33:19,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189509925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:33:19,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:33:19,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-21 16:33:19,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123675277] [2022-11-21 16:33:19,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:33:19,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:33:19,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:33:19,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:33:19,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:33:19,251 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:19,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:19,300 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2022-11-21 16:33:19,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:33:19,300 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-21 16:33:19,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:19,302 INFO L225 Difference]: With dead ends: 60 [2022-11-21 16:33:19,303 INFO L226 Difference]: Without dead ends: 59 [2022-11-21 16:33:19,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:33:19,304 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 17 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:19,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 77 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:33:19,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-21 16:33:19,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-21 16:33:19,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 55 states have (on average 1.2) internal successors, (66), 58 states have internal predecessors, (66), 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) [2022-11-21 16:33:19,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2022-11-21 16:33:19,312 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 20 [2022-11-21 16:33:19,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:19,312 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2022-11-21 16:33:19,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:19,313 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2022-11-21 16:33:19,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 16:33:19,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:19,314 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:19,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 16:33:19,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-21 16:33:19,520 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 16:33:19,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:19,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1033889760, now seen corresponding path program 1 times [2022-11-21 16:33:19,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:33:19,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284215633] [2022-11-21 16:33:19,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:19,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:33:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:19,718 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:19,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:33:19,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284215633] [2022-11-21 16:33:19,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284215633] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:33:19,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103579993] [2022-11-21 16:33:19,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:19,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:33:19,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:33:19,721 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:33:19,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 16:33:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:19,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 16:33:19,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:33:19,958 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:19,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:33:20,093 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:20,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103579993] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:33:20,094 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:33:20,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-11-21 16:33:20,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963436210] [2022-11-21 16:33:20,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:33:20,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-21 16:33:20,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:33:20,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-21 16:33:20,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:33:20,100 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 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) [2022-11-21 16:33:20,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:20,263 INFO L93 Difference]: Finished difference Result 72 states and 80 transitions. [2022-11-21 16:33:20,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 16:33:20,264 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 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 24 [2022-11-21 16:33:20,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:20,265 INFO L225 Difference]: With dead ends: 72 [2022-11-21 16:33:20,265 INFO L226 Difference]: Without dead ends: 71 [2022-11-21 16:33:20,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-21 16:33:20,266 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 77 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:20,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 124 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:33:20,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-21 16:33:20,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 58. [2022-11-21 16:33:20,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 55 states have (on average 1.1818181818181819) internal successors, (65), 57 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:20,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2022-11-21 16:33:20,274 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 24 [2022-11-21 16:33:20,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:20,275 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2022-11-21 16:33:20,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 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) [2022-11-21 16:33:20,275 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2022-11-21 16:33:20,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-21 16:33:20,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:20,278 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:20,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 16:33:20,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:33:20,485 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 16:33:20,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:20,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1399430408, now seen corresponding path program 1 times [2022-11-21 16:33:20,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:33:20,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332076266] [2022-11-21 16:33:20,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:20,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:33:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:20,688 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:20,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:33:20,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332076266] [2022-11-21 16:33:20,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332076266] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:33:20,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726251490] [2022-11-21 16:33:20,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:20,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:33:20,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:33:20,691 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:33:20,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 16:33:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:20,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-21 16:33:20,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:33:20,969 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:20,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:33:21,118 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:21,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726251490] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:33:21,118 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:33:21,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2022-11-21 16:33:21,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145759525] [2022-11-21 16:33:21,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:33:21,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:33:21,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:33:21,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:33:21,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:33:21,122 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand has 18 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 18 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) [2022-11-21 16:33:21,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:21,388 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2022-11-21 16:33:21,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:33:21,388 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 18 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) Word has length 27 [2022-11-21 16:33:21,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:21,389 INFO L225 Difference]: With dead ends: 74 [2022-11-21 16:33:21,389 INFO L226 Difference]: Without dead ends: 68 [2022-11-21 16:33:21,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=175, Invalid=695, Unknown=0, NotChecked=0, Total=870 [2022-11-21 16:33:21,391 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 97 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:21,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 90 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:33:21,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-21 16:33:21,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 63. [2022-11-21 16:33:21,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 62 states have internal predecessors, (70), 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) [2022-11-21 16:33:21,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2022-11-21 16:33:21,396 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 27 [2022-11-21 16:33:21,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:21,396 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2022-11-21 16:33:21,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 18 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) [2022-11-21 16:33:21,396 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2022-11-21 16:33:21,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-21 16:33:21,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:21,397 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:21,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 16:33:21,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-21 16:33:21,605 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 16:33:21,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:21,605 INFO L85 PathProgramCache]: Analyzing trace with hash 432669773, now seen corresponding path program 1 times [2022-11-21 16:33:21,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:33:21,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217496338] [2022-11-21 16:33:21,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:21,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:33:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:21,675 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-21 16:33:21,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:33:21,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217496338] [2022-11-21 16:33:21,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217496338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:33:21,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:33:21,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:33:21,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978212188] [2022-11-21 16:33:21,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:33:21,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:33:21,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:33:21,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:33:21,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:33:21,678 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:21,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:21,686 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2022-11-21 16:33:21,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:33:21,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-21 16:33:21,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:21,688 INFO L225 Difference]: With dead ends: 63 [2022-11-21 16:33:21,688 INFO L226 Difference]: Without dead ends: 50 [2022-11-21 16:33:21,688 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 [2022-11-21 16:33:21,689 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:21,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:33:21,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-21 16:33:21,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-21 16:33:21,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.1020408163265305) internal successors, (54), 49 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:21,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2022-11-21 16:33:21,695 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 28 [2022-11-21 16:33:21,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:21,696 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2022-11-21 16:33:21,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:21,696 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2022-11-21 16:33:21,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-21 16:33:21,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:21,700 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-11-21 16:33:21,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:33:21,701 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 16:33:21,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:21,701 INFO L85 PathProgramCache]: Analyzing trace with hash -163609488, now seen corresponding path program 2 times [2022-11-21 16:33:21,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:33:21,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483165230] [2022-11-21 16:33:21,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:21,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:33:21,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:22,034 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:22,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:33:22,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483165230] [2022-11-21 16:33:22,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483165230] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:33:22,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735079604] [2022-11-21 16:33:22,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:33:22,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:33:22,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:33:22,037 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:33:22,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 16:33:22,316 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 16:33:22,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:33:22,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-21 16:33:22,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:33:22,432 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:22,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:33:22,652 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:22,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735079604] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:33:22,652 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:33:22,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-11-21 16:33:22,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791889939] [2022-11-21 16:33:22,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:33:22,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-21 16:33:22,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:33:22,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-21 16:33:22,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-11-21 16:33:22,655 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 24 states, 23 states have (on average 4.608695652173913) internal successors, (106), 24 states have internal predecessors, (106), 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) [2022-11-21 16:33:22,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:22,863 INFO L93 Difference]: Finished difference Result 112 states and 127 transitions. [2022-11-21 16:33:22,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-21 16:33:22,864 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.608695652173913) internal successors, (106), 24 states have internal predecessors, (106), 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 49 [2022-11-21 16:33:22,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:22,865 INFO L225 Difference]: With dead ends: 112 [2022-11-21 16:33:22,865 INFO L226 Difference]: Without dead ends: 111 [2022-11-21 16:33:22,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2022-11-21 16:33:22,867 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 96 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:22,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 135 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:33:22,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-11-21 16:33:22,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2022-11-21 16:33:22,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.1009174311926606) internal successors, (120), 109 states have internal predecessors, (120), 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) [2022-11-21 16:33:22,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 120 transitions. [2022-11-21 16:33:22,873 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 120 transitions. Word has length 49 [2022-11-21 16:33:22,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:22,874 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 120 transitions. [2022-11-21 16:33:22,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.608695652173913) internal successors, (106), 24 states have internal predecessors, (106), 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) [2022-11-21 16:33:22,874 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 120 transitions. [2022-11-21 16:33:22,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-21 16:33:22,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:22,876 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2022-11-21 16:33:22,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-21 16:33:23,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-21 16:33:23,089 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 16:33:23,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:23,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1004450596, now seen corresponding path program 3 times [2022-11-21 16:33:23,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:33:23,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269943377] [2022-11-21 16:33:23,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:23,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:33:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:24,379 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:24,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:33:24,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269943377] [2022-11-21 16:33:24,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269943377] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:33:24,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928037711] [2022-11-21 16:33:24,380 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 16:33:24,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:33:24,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:33:24,382 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:33:24,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-21 16:33:52,204 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-21 16:33:52,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:33:52,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-21 16:33:52,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:33:52,518 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:52,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:33:53,378 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:53,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928037711] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:33:53,378 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:33:53,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2022-11-21 16:33:53,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417793709] [2022-11-21 16:33:53,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:33:53,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-21 16:33:53,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:33:53,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-21 16:33:53,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2022-11-21 16:33:53,382 INFO L87 Difference]: Start difference. First operand 110 states and 120 transitions. Second operand has 48 states, 47 states have (on average 4.808510638297872) internal successors, (226), 48 states have internal predecessors, (226), 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) [2022-11-21 16:33:54,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:54,094 INFO L93 Difference]: Finished difference Result 232 states and 265 transitions. [2022-11-21 16:33:54,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-21 16:33:54,095 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.808510638297872) internal successors, (226), 48 states have internal predecessors, (226), 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 109 [2022-11-21 16:33:54,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:54,097 INFO L225 Difference]: With dead ends: 232 [2022-11-21 16:33:54,097 INFO L226 Difference]: Without dead ends: 231 [2022-11-21 16:33:54,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1048 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1382, Invalid=3448, Unknown=0, NotChecked=0, Total=4830 [2022-11-21 16:33:54,100 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 240 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:54,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 240 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:33:54,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-11-21 16:33:54,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 230. [2022-11-21 16:33:54,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 229 states have (on average 1.1004366812227073) internal successors, (252), 229 states have internal predecessors, (252), 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) [2022-11-21 16:33:54,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 252 transitions. [2022-11-21 16:33:54,115 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 252 transitions. Word has length 109 [2022-11-21 16:33:54,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:54,115 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 252 transitions. [2022-11-21 16:33:54,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.808510638297872) internal successors, (226), 48 states have internal predecessors, (226), 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) [2022-11-21 16:33:54,116 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 252 transitions. [2022-11-21 16:33:54,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-11-21 16:33:54,131 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:54,131 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2022-11-21 16:33:54,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-21 16:33:54,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-21 16:33:54,333 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-21 16:33:54,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:54,333 INFO L85 PathProgramCache]: Analyzing trace with hash 720820, now seen corresponding path program 4 times [2022-11-21 16:33:54,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:33:54,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223895638] [2022-11-21 16:33:54,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:54,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:33:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:58,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2464 backedges. 0 proven. 2464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:58,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:33:58,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223895638] [2022-11-21 16:33:58,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223895638] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:33:58,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200324318] [2022-11-21 16:33:58,199 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-21 16:33:58,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:33:58,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:33:58,201 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:33:58,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-21 16:35:13,523 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-21 16:35:13,523 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:35:13,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 2180 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-21 16:35:13,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:35:15,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2464 backedges. 2440 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-21 16:35:15,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:35:15,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200324318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:15,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:35:15,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [47] total 89 [2022-11-21 16:35:15,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057646392] [2022-11-21 16:35:15,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:15,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-21 16:35:15,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:15,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-21 16:35:15,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=6751, Unknown=0, NotChecked=0, Total=7832 [2022-11-21 16:35:15,568 INFO L87 Difference]: Start difference. First operand 230 states and 252 transitions. Second operand has 43 states, 43 states have (on average 4.953488372093023) internal successors, (213), 42 states have internal predecessors, (213), 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) [2022-11-21 16:35:16,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:35:16,700 INFO L93 Difference]: Finished difference Result 230 states and 252 transitions. [2022-11-21 16:35:16,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-21 16:35:16,702 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 4.953488372093023) internal successors, (213), 42 states have internal predecessors, (213), 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 229 [2022-11-21 16:35:16,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:35:16,702 INFO L225 Difference]: With dead ends: 230 [2022-11-21 16:35:16,702 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 16:35:16,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3029 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1731, Invalid=10041, Unknown=0, NotChecked=0, Total=11772 [2022-11-21 16:35:16,706 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 68 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:35:16,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 1084 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 16:35:16,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 16:35:16,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 16:35:16,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:35:16,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 16:35:16,707 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 229 [2022-11-21 16:35:16,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:35:16,708 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 16:35:16,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 4.953488372093023) internal successors, (213), 42 states have internal predecessors, (213), 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) [2022-11-21 16:35:16,708 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 16:35:16,708 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 16:35:16,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-21 16:35:16,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-21 16:35:16,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-21 16:35:16,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-21 16:35:16,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-21 16:35:16,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-21 16:35:16,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-21 16:35:16,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-21 16:35:16,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-21 16:35:16,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-21 16:35:16,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 16:35:17,388 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 545) no Hoare annotation was computed. [2022-11-21 16:35:17,388 INFO L899 garLoopResultBuilder]: For program point L543-1(lines 543 546) no Hoare annotation was computed. [2022-11-21 16:35:17,388 INFO L899 garLoopResultBuilder]: For program point L543-2(lines 543 546) no Hoare annotation was computed. [2022-11-21 16:35:17,389 INFO L895 garLoopResultBuilder]: At program point L543-4(lines 543 546) the Hoare annotation is: (let ((.cse0 (<= ~c~0 19)) (.cse1 (<= 1 ~c~0)) (.cse2 (<= 1 |ULTIMATE.start_main_~length~0#1|))) (or (and .cse0 .cse1 (<= |ULTIMATE.start_main_~length~0#1| 4) (<= 4 ~c~0) .cse2) (and .cse0 .cse1 .cse2 (<= |ULTIMATE.start_main_~length~0#1| 7) (<= 7 ~c~0)) (and .cse0 (< |ULTIMATE.start_main_~length~0#1| 2147483642) (<= 16 ~c~0) .cse1 .cse2) (and (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#list~0#1.base|) |ULTIMATE.start_main_~#list~0#1.offset|) 0) (= ~c~0 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#list~0#1.base|) |ULTIMATE.start_main_~#list~0#1.offset|) 0) (= |ULTIMATE.start_main_~length~0#1| 0)) (and .cse0 (<= 14 ~c~0) .cse1 .cse2 (< |ULTIMATE.start_main_~length~0#1| 2147483640)) (and .cse0 (<= 6 ~c~0) (<= |ULTIMATE.start_main_~length~0#1| 6) .cse1 .cse2) (and .cse0 (< |ULTIMATE.start_main_~length~0#1| 2147483638) .cse1 .cse2 (<= 12 ~c~0)) (and .cse0 (<= 11 ~c~0) (< |ULTIMATE.start_main_~length~0#1| 2147483637) .cse1 .cse2) (and .cse0 (<= |ULTIMATE.start_main_~length~0#1| 3) (<= 3 ~c~0) .cse1 .cse2) (and .cse0 (<= 18 ~c~0) .cse1 (< |ULTIMATE.start_main_~length~0#1| 2147483644) .cse2) (and .cse0 (<= 19 ~c~0) (< |ULTIMATE.start_main_~length~0#1| 2147483645) .cse1 .cse2) (and .cse0 (<= |ULTIMATE.start_main_~length~0#1| 1) .cse1 .cse2) (and .cse0 (<= 17 ~c~0) .cse1 (< |ULTIMATE.start_main_~length~0#1| 2147483643) .cse2) (and .cse0 (< |ULTIMATE.start_main_~length~0#1| 2147483641) (<= 15 ~c~0) .cse1 .cse2) (and .cse0 (<= 8 ~c~0) (<= |ULTIMATE.start_main_~length~0#1| 8) .cse1 .cse2) (and .cse0 .cse1 .cse2 (<= |ULTIMATE.start_main_~length~0#1| 2) (<= 2 ~c~0)) (and .cse0 (<= |ULTIMATE.start_main_~length~0#1| 9) .cse1 .cse2 (<= 9 ~c~0)) (and .cse0 (<= 5 ~c~0) .cse1 .cse2 (<= |ULTIMATE.start_main_~length~0#1| 5)) (and .cse0 (<= 10 ~c~0) .cse1 .cse2 (<= |ULTIMATE.start_main_~length~0#1| 10)) (and .cse0 (< |ULTIMATE.start_main_~length~0#1| 2147483639) .cse1 (<= 13 ~c~0) .cse2))) [2022-11-21 16:35:17,389 INFO L899 garLoopResultBuilder]: For program point L543-5(lines 540 561) no Hoare annotation was computed. [2022-11-21 16:35:17,390 INFO L899 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2022-11-21 16:35:17,390 INFO L899 garLoopResultBuilder]: For program point L531-1(line 531) no Hoare annotation was computed. [2022-11-21 16:35:17,390 INFO L902 garLoopResultBuilder]: At program point L560(lines 539 561) the Hoare annotation is: true [2022-11-21 16:35:17,390 INFO L899 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2022-11-21 16:35:17,390 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 558) no Hoare annotation was computed. [2022-11-21 16:35:17,390 INFO L899 garLoopResultBuilder]: For program point L552-1(line 552) no Hoare annotation was computed. [2022-11-21 16:35:17,390 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 16:35:17,390 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 531) no Hoare annotation was computed. [2022-11-21 16:35:17,391 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 16:35:17,391 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2022-11-21 16:35:17,391 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 16:35:17,391 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 531) no Hoare annotation was computed. [2022-11-21 16:35:17,391 INFO L899 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2022-11-21 16:35:17,391 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 16:35:17,391 INFO L899 garLoopResultBuilder]: For program point L545-1(line 545) no Hoare annotation was computed. [2022-11-21 16:35:17,391 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2022-11-21 16:35:17,391 INFO L899 garLoopResultBuilder]: For program point L529(lines 529 538) no Hoare annotation was computed. [2022-11-21 16:35:17,392 INFO L899 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2022-11-21 16:35:17,392 INFO L899 garLoopResultBuilder]: For program point L558-1(line 558) no Hoare annotation was computed. [2022-11-21 16:35:17,392 INFO L895 garLoopResultBuilder]: At program point L554-1(lines 540 561) the Hoare annotation is: (and (<= 1 ~c~0) (< |ULTIMATE.start_main_~length~0#1| 2147483649)) [2022-11-21 16:35:17,392 INFO L899 garLoopResultBuilder]: For program point L554-2(lines 554 559) no Hoare annotation was computed. [2022-11-21 16:35:17,392 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 545) no Hoare annotation was computed. [2022-11-21 16:35:17,392 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 536) no Hoare annotation was computed. [2022-11-21 16:35:17,392 INFO L899 garLoopResultBuilder]: For program point L534-2(lines 534 536) no Hoare annotation was computed. [2022-11-21 16:35:17,392 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 558) no Hoare annotation was computed. [2022-11-21 16:35:17,397 INFO L444 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:35:17,399 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:35:17,416 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-21 16:35:17,417 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-21 16:35:17,420 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-21 16:35:17,420 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-21 16:35:17,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:35:17 BoogieIcfgContainer [2022-11-21 16:35:17,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:35:17,423 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:35:17,423 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:35:17,423 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:35:17,424 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:33:14" (3/4) ... [2022-11-21 16:35:17,442 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:35:17,454 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-21 16:35:17,455 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 16:35:17,455 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 16:35:17,455 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:35:17,516 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:35:17,516 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:35:17,517 INFO L158 Benchmark]: Toolchain (without parser) took 124201.02ms. Allocated memory was 180.4MB in the beginning and 262.1MB in the end (delta: 81.8MB). Free memory was 142.4MB in the beginning and 87.2MB in the end (delta: 55.2MB). Peak memory consumption was 138.4MB. Max. memory is 16.1GB. [2022-11-21 16:35:17,518 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory is still 76.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:35:17,519 INFO L158 Benchmark]: CACSL2BoogieTranslator took 576.38ms. Allocated memory is still 180.4MB. Free memory was 141.9MB in the beginning and 125.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 16:35:17,519 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.28ms. Allocated memory is still 180.4MB. Free memory was 125.1MB in the beginning and 123.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:35:17,520 INFO L158 Benchmark]: Boogie Preprocessor took 57.18ms. Allocated memory is still 180.4MB. Free memory was 123.0MB in the beginning and 121.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:35:17,520 INFO L158 Benchmark]: RCFGBuilder took 654.60ms. Allocated memory is still 180.4MB. Free memory was 121.9MB in the beginning and 107.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 16:35:17,521 INFO L158 Benchmark]: TraceAbstraction took 122739.01ms. Allocated memory was 180.4MB in the beginning and 262.1MB in the end (delta: 81.8MB). Free memory was 106.7MB in the beginning and 90.3MB in the end (delta: 16.4MB). Peak memory consumption was 100.7MB. Max. memory is 16.1GB. [2022-11-21 16:35:17,521 INFO L158 Benchmark]: Witness Printer took 93.04ms. Allocated memory is still 262.1MB. Free memory was 90.3MB in the beginning and 87.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:35:17,525 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory is still 76.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 576.38ms. Allocated memory is still 180.4MB. Free memory was 141.9MB in the beginning and 125.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.28ms. Allocated memory is still 180.4MB. Free memory was 125.1MB in the beginning and 123.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.18ms. Allocated memory is still 180.4MB. Free memory was 123.0MB in the beginning and 121.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 654.60ms. Allocated memory is still 180.4MB. Free memory was 121.9MB in the beginning and 107.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 122739.01ms. Allocated memory was 180.4MB in the beginning and 262.1MB in the end (delta: 81.8MB). Free memory was 106.7MB in the beginning and 90.3MB in the end (delta: 16.4MB). Peak memory consumption was 100.7MB. Max. memory is 16.1GB. * Witness Printer took 93.04ms. Allocated memory is still 262.1MB. Free memory was 90.3MB in the beginning and 87.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 531]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 531]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 558]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 558]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 122.6s, OverallIterations: 17, TraceHistogramMax: 23, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 780 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 780 mSDsluCounter, 2562 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2090 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1177 IncrementalHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 472 mSDtfsCounter, 1177 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 945 GetRequests, 623 SyntacticMatches, 0 SemanticMatches, 322 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4625 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=230occurred in iteration=16, InterpolantAutomatonStates: 216, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 74 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 28 NumberOfFragments, 331 HoareAnnotationTreeSize, 3 FomulaSimplifications, 503 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 253 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 103.3s SatisfiabilityAnalysisTime, 11.2s InterpolantComputationTime, 1109 NumberOfCodeBlocks, 1109 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 1307 ConstructedInterpolants, 0 QuantifiedInterpolants, 3753 SizeOfPredicates, 49 NumberOfNonLiveVariables, 4900 ConjunctsInSsa, 107 ConjunctsInUnsatCore, 30 InterpolantComputations, 12 PerfectInterpolantSequences, 2487/6867 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 539]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 540]: Loop Invariant Derived loop invariant: 1 <= c && length < 2147483649 - InvariantResult [Line: 543]: Loop Invariant [2022-11-21 16:35:17,547 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-21 16:35:17,547 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-21 16:35:17,549 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-21 16:35:17,552 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: ((((((((((((((((((((((c <= 19 && 1 <= c) && length <= 4) && 4 <= c) && 1 <= length) || ((((c <= 19 && 1 <= c) && 1 <= length) && length <= 7) && 7 <= c)) || ((((c <= 19 && length < 2147483642) && 16 <= c) && 1 <= c) && 1 <= length)) || (((#memory_$Pointer$[list][list] == 0 && c == 0) && #memory_$Pointer$[list][list] == 0) && length == 0)) || ((((c <= 19 && 14 <= c) && 1 <= c) && 1 <= length) && length < 2147483640)) || ((((c <= 19 && 6 <= c) && length <= 6) && 1 <= c) && 1 <= length)) || ((((c <= 19 && length < 2147483638) && 1 <= c) && 1 <= length) && 12 <= c)) || ((((c <= 19 && 11 <= c) && length < 2147483637) && 1 <= c) && 1 <= length)) || ((((c <= 19 && length <= 3) && 3 <= c) && 1 <= c) && 1 <= length)) || ((((c <= 19 && 18 <= c) && 1 <= c) && length < 2147483644) && 1 <= length)) || ((((c <= 19 && 19 <= c) && length < 2147483645) && 1 <= c) && 1 <= length)) || (((c <= 19 && length <= 1) && 1 <= c) && 1 <= length)) || ((((c <= 19 && 17 <= c) && 1 <= c) && length < 2147483643) && 1 <= length)) || ((((c <= 19 && length < 2147483641) && 15 <= c) && 1 <= c) && 1 <= length)) || ((((c <= 19 && 8 <= c) && length <= 8) && 1 <= c) && 1 <= length)) || ((((c <= 19 && 1 <= c) && 1 <= length) && length <= 2) && 2 <= c)) || ((((c <= 19 && length <= 9) && 1 <= c) && 1 <= length) && 9 <= c)) || ((((c <= 19 && 5 <= c) && 1 <= c) && 1 <= length) && length <= 5)) || ((((c <= 19 && 10 <= c) && 1 <= c) && 1 <= length) && length <= 10)) || ((((c <= 19 && length < 2147483639) && 1 <= c) && 13 <= c) && 1 <= length) RESULT: Ultimate proved your program to be correct! [2022-11-21 16:35:17,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87c53713-4611-46cd-856f-e629abacf2db/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE