./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark22_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark22_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6ed0b12ce7ca8412687eea32cd5c4beaf5275fff5c5bfef18c07965c0f054672 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 21:00:20,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:00:20,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:00:20,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:00:20,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:00:20,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:00:20,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:00:20,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:00:20,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:00:20,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:00:20,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:00:20,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:00:20,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:00:20,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:00:20,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:00:20,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:00:20,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:00:20,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:00:20,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:00:20,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:00:20,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:00:20,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:00:20,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:00:20,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:00:20,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:00:20,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:00:20,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:00:20,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:00:20,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:00:20,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:00:20,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:00:20,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:00:20,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:00:20,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:00:20,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:00:20,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:00:20,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:00:20,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:00:20,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:00:20,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:00:20,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:00:20,425 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 21:00:20,465 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:00:20,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:00:20,467 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:00:20,467 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:00:20,469 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:00:20,469 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:00:20,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:00:20,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:00:20,470 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:00:20,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:00:20,472 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:00:20,472 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 21:00:20,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:00:20,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:00:20,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:00:20,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:00:20,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:00:20,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:00:20,473 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 21:00:20,474 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:00:20,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:00:20,474 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:00:20,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:00:20,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:00:20,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:00:20,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:00:20,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:00:20,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:00:20,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:00:20,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:00:20,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:00:20,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:00:20,477 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:00:20,477 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:00:20,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:00:20,478 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_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ed0b12ce7ca8412687eea32cd5c4beaf5275fff5c5bfef18c07965c0f054672 [2022-11-18 21:00:20,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:00:20,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:00:20,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:00:20,793 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:00:20,794 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:00:20,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/loop-zilu/benchmark22_conjunctive.i [2022-11-18 21:00:20,886 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/data/02dc4eebc/5c6bae038f2947be9ed7ca731b2e93bb/FLAG93a4710f2 [2022-11-18 21:00:21,454 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:00:21,455 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/sv-benchmarks/c/loop-zilu/benchmark22_conjunctive.i [2022-11-18 21:00:21,462 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/data/02dc4eebc/5c6bae038f2947be9ed7ca731b2e93bb/FLAG93a4710f2 [2022-11-18 21:00:21,825 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/data/02dc4eebc/5c6bae038f2947be9ed7ca731b2e93bb [2022-11-18 21:00:21,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:00:21,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:00:21,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:00:21,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:00:21,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:00:21,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:00:21" (1/1) ... [2022-11-18 21:00:21,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ce3d47b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:21, skipping insertion in model container [2022-11-18 21:00:21,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:00:21" (1/1) ... [2022-11-18 21:00:21,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:00:21,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:00:22,040 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/sv-benchmarks/c/loop-zilu/benchmark22_conjunctive.i[873,886] [2022-11-18 21:00:22,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:00:22,062 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:00:22,077 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/sv-benchmarks/c/loop-zilu/benchmark22_conjunctive.i[873,886] [2022-11-18 21:00:22,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:00:22,096 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:00:22,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:22 WrapperNode [2022-11-18 21:00:22,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:00:22,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:00:22,098 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:00:22,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:00:22,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:22" (1/1) ... [2022-11-18 21:00:22,112 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:22" (1/1) ... [2022-11-18 21:00:22,129 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2022-11-18 21:00:22,129 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:00:22,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:00:22,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:00:22,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:00:22,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:22" (1/1) ... [2022-11-18 21:00:22,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:22" (1/1) ... [2022-11-18 21:00:22,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:22" (1/1) ... [2022-11-18 21:00:22,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:22" (1/1) ... [2022-11-18 21:00:22,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:22" (1/1) ... [2022-11-18 21:00:22,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:22" (1/1) ... [2022-11-18 21:00:22,156 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:22" (1/1) ... [2022-11-18 21:00:22,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:22" (1/1) ... [2022-11-18 21:00:22,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:00:22,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:00:22,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:00:22,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:00:22,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:22" (1/1) ... [2022-11-18 21:00:22,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:00:22,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:22,195 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:22,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:00:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:00:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:00:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:00:22,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:00:22,320 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:00:22,322 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:00:22,525 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:00:22,530 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:00:22,531 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 21:00:22,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:00:22 BoogieIcfgContainer [2022-11-18 21:00:22,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:00:22,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:00:22,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:00:22,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:00:22,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:00:21" (1/3) ... [2022-11-18 21:00:22,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@366e4c46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:00:22, skipping insertion in model container [2022-11-18 21:00:22,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:22" (2/3) ... [2022-11-18 21:00:22,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@366e4c46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:00:22, skipping insertion in model container [2022-11-18 21:00:22,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:00:22" (3/3) ... [2022-11-18 21:00:22,555 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark22_conjunctive.i [2022-11-18 21:00:22,590 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:00:22,590 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-18 21:00:22,702 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:00:22,729 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;@4c7c282e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:00:22,729 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-18 21:00:22,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:22,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 21:00:22,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:22,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 21:00:22,752 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 21:00:22,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:22,758 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2022-11-18 21:00:22,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:22,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97605431] [2022-11-18 21:00:22,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:22,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:23,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:23,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:23,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97605431] [2022-11-18 21:00:23,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97605431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:23,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:23,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:00:23,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825136699] [2022-11-18 21:00:23,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:23,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:00:23,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:23,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:00:23,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:00:23,097 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:23,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:23,172 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2022-11-18 21:00:23,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:00:23,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 21:00:23,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:23,184 INFO L225 Difference]: With dead ends: 34 [2022-11-18 21:00:23,191 INFO L226 Difference]: Without dead ends: 15 [2022-11-18 21:00:23,194 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 [2022-11-18 21:00:23,199 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 8 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:23,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 27 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:00:23,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-18 21:00:23,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2022-11-18 21:00:23,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:23,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-11-18 21:00:23,253 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2022-11-18 21:00:23,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:23,254 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-11-18 21:00:23,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:23,255 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-11-18 21:00:23,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 21:00:23,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:23,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 21:00:23,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:00:23,257 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 21:00:23,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:23,259 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2022-11-18 21:00:23,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:23,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150565152] [2022-11-18 21:00:23,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:23,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:23,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:23,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:23,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150565152] [2022-11-18 21:00:23,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150565152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:23,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:23,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:00:23,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500513841] [2022-11-18 21:00:23,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:23,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:00:23,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:23,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:00:23,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:00:23,343 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:23,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:23,358 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-18 21:00:23,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:00:23,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-18 21:00:23,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:23,359 INFO L225 Difference]: With dead ends: 16 [2022-11-18 21:00:23,359 INFO L226 Difference]: Without dead ends: 15 [2022-11-18 21:00:23,360 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 [2022-11-18 21:00:23,361 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 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 [2022-11-18 21:00:23,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:00:23,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-18 21:00:23,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-18 21:00:23,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:23,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-18 21:00:23,366 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 6 [2022-11-18 21:00:23,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:23,367 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-18 21:00:23,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:23,367 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-18 21:00:23,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 21:00:23,368 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:23,368 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:23,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:00:23,369 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 21:00:23,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:23,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2022-11-18 21:00:23,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:23,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853823165] [2022-11-18 21:00:23,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:23,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:23,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:23,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:23,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853823165] [2022-11-18 21:00:23,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853823165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:23,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:23,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:00:23,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84005485] [2022-11-18 21:00:23,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:23,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:00:23,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:23,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:00:23,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:00:23,424 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:23,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:23,458 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-18 21:00:23,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:00:23,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-18 21:00:23,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:23,459 INFO L225 Difference]: With dead ends: 19 [2022-11-18 21:00:23,460 INFO L226 Difference]: Without dead ends: 18 [2022-11-18 21:00:23,460 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 [2022-11-18 21:00:23,462 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 17 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 [2022-11-18 21:00:23,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 17 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:00:23,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-18 21:00:23,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2022-11-18 21:00:23,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:23,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-11-18 21:00:23,467 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2022-11-18 21:00:23,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:23,467 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-11-18 21:00:23,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:23,468 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-11-18 21:00:23,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 21:00:23,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:23,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:23,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 21:00:23,469 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 21:00:23,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:23,470 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2022-11-18 21:00:23,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:23,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000395701] [2022-11-18 21:00:23,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:23,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:23,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:23,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:23,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000395701] [2022-11-18 21:00:23,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000395701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:23,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:23,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:00:23,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339575614] [2022-11-18 21:00:23,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:23,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:00:23,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:23,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:00:23,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:00:23,560 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:23,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:23,596 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-18 21:00:23,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 21:00:23,597 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 21:00:23,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:23,598 INFO L225 Difference]: With dead ends: 16 [2022-11-18 21:00:23,598 INFO L226 Difference]: Without dead ends: 15 [2022-11-18 21:00:23,599 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 [2022-11-18 21:00:23,609 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:23,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 8 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:00:23,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-18 21:00:23,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-18 21:00:23,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:23,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-18 21:00:23,619 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-11-18 21:00:23,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:23,619 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-18 21:00:23,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:23,620 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-18 21:00:23,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 21:00:23,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:23,621 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:23,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 21:00:23,622 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 21:00:23,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:23,623 INFO L85 PathProgramCache]: Analyzing trace with hash 47508593, now seen corresponding path program 1 times [2022-11-18 21:00:23,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:23,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467809461] [2022-11-18 21:00:23,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:23,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:23,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:23,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:23,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:23,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467809461] [2022-11-18 21:00:23,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467809461] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:00:23,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696141638] [2022-11-18 21:00:23,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:23,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:00:23,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:23,774 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:00:23,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 21:00:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:23,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 21:00:23,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:24,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:24,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:00:24,083 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:24,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696141638] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:00:24,084 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:00:24,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-11-18 21:00:24,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666527154] [2022-11-18 21:00:24,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:00:24,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 21:00:24,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:24,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 21:00:24,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-18 21:00:24,090 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 11 states, 10 states have (on average 2.6) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:24,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:24,176 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2022-11-18 21:00:24,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 21:00:24,177 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.6) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-18 21:00:24,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:24,178 INFO L225 Difference]: With dead ends: 26 [2022-11-18 21:00:24,178 INFO L226 Difference]: Without dead ends: 25 [2022-11-18 21:00:24,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-11-18 21:00:24,179 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 21 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:24,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 18 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:00:24,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-18 21:00:24,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2022-11-18 21:00:24,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:24,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-11-18 21:00:24,184 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 10 [2022-11-18 21:00:24,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:24,184 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-11-18 21:00:24,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.6) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:24,185 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-11-18 21:00:24,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 21:00:24,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:24,186 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:24,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:24,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:00:24,391 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 21:00:24,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:24,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1472766433, now seen corresponding path program 1 times [2022-11-18 21:00:24,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:24,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224320994] [2022-11-18 21:00:24,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:24,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:24,467 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:24,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:24,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224320994] [2022-11-18 21:00:24,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224320994] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:00:24,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393110250] [2022-11-18 21:00:24,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:24,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:00:24,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:24,472 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:00:24,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 21:00:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:24,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 21:00:24,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:24,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:24,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:00:24,678 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:24,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393110250] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:00:24,678 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:00:24,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-11-18 21:00:24,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357059383] [2022-11-18 21:00:24,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:00:24,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 21:00:24,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:24,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 21:00:24,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-18 21:00:24,681 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 11 states, 10 states have (on average 2.9) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:24,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:24,755 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2022-11-18 21:00:24,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 21:00:24,756 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 21:00:24,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:24,756 INFO L225 Difference]: With dead ends: 26 [2022-11-18 21:00:24,757 INFO L226 Difference]: Without dead ends: 25 [2022-11-18 21:00:24,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-11-18 21:00:24,758 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 22 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:24,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 30 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:00:24,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-18 21:00:24,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2022-11-18 21:00:24,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:24,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2022-11-18 21:00:24,762 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 11 [2022-11-18 21:00:24,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:24,763 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2022-11-18 21:00:24,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:24,763 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2022-11-18 21:00:24,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 21:00:24,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:24,764 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:24,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:24,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:00:24,971 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 21:00:24,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:24,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1588880781, now seen corresponding path program 1 times [2022-11-18 21:00:24,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:24,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396825534] [2022-11-18 21:00:24,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:24,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:25,030 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:25,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:25,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396825534] [2022-11-18 21:00:25,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396825534] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:00:25,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058815397] [2022-11-18 21:00:25,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:25,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:00:25,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:25,033 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:00:25,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 21:00:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:25,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 21:00:25,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:25,114 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:25,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:00:25,173 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:25,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058815397] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:00:25,174 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:00:25,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-18 21:00:25,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577612117] [2022-11-18 21:00:25,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:00:25,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 21:00:25,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:25,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 21:00:25,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:00:25,177 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:25,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:25,282 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2022-11-18 21:00:25,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 21:00:25,282 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-18 21:00:25,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:25,283 INFO L225 Difference]: With dead ends: 34 [2022-11-18 21:00:25,283 INFO L226 Difference]: Without dead ends: 33 [2022-11-18 21:00:25,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-18 21:00:25,284 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 20 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:25,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 23 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:00:25,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-18 21:00:25,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2022-11-18 21:00:25,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 29 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) [2022-11-18 21:00:25,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2022-11-18 21:00:25,289 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 12 [2022-11-18 21:00:25,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:25,290 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2022-11-18 21:00:25,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:25,290 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-11-18 21:00:25,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-18 21:00:25,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:25,291 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1] [2022-11-18 21:00:25,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:25,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:00:25,492 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 21:00:25,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:25,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1418773263, now seen corresponding path program 2 times [2022-11-18 21:00:25,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:25,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186201553] [2022-11-18 21:00:25,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:25,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:25,689 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:25,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:25,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186201553] [2022-11-18 21:00:25,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186201553] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:00:25,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23420487] [2022-11-18 21:00:25,691 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 21:00:25,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:00:25,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:25,692 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:00:25,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 21:00:25,743 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 21:00:25,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:00:25,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 21:00:25,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:25,969 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:25,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:00:26,153 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:26,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23420487] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:00:26,154 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:00:26,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2022-11-18 21:00:26,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170438251] [2022-11-18 21:00:26,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:00:26,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 21:00:26,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:26,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 21:00:26,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2022-11-18 21:00:26,157 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 23 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 23 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) [2022-11-18 21:00:26,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:26,541 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2022-11-18 21:00:26,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 21:00:26,541 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 23 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 20 [2022-11-18 21:00:26,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:26,542 INFO L225 Difference]: With dead ends: 49 [2022-11-18 21:00:26,542 INFO L226 Difference]: Without dead ends: 48 [2022-11-18 21:00:26,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2022-11-18 21:00:26,543 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 41 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:26,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 39 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:00:26,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-18 21:00:26,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 43. [2022-11-18 21:00:26,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 40 states have (on average 1.2) internal successors, (48), 42 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:26,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2022-11-18 21:00:26,550 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 20 [2022-11-18 21:00:26,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:26,551 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2022-11-18 21:00:26,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 23 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) [2022-11-18 21:00:26,551 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2022-11-18 21:00:26,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-18 21:00:26,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:26,552 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1] [2022-11-18 21:00:26,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:26,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:00:26,757 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 21:00:26,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:26,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1032298143, now seen corresponding path program 2 times [2022-11-18 21:00:26,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:26,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980852692] [2022-11-18 21:00:26,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:26,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:26,930 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:26,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:26,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980852692] [2022-11-18 21:00:26,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980852692] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:00:26,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102407107] [2022-11-18 21:00:26,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 21:00:26,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:00:26,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:26,936 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:00:26,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 21:00:26,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 21:00:26,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:00:26,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 21:00:26,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:27,183 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:27,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:00:27,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102407107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:27,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 21:00:27,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2022-11-18 21:00:27,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135397614] [2022-11-18 21:00:27,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:27,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 21:00:27,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:27,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 21:00:27,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-11-18 21:00:27,186 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:27,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:27,296 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-11-18 21:00:27,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 21:00:27,297 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-18 21:00:27,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:27,298 INFO L225 Difference]: With dead ends: 43 [2022-11-18 21:00:27,298 INFO L226 Difference]: Without dead ends: 42 [2022-11-18 21:00:27,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2022-11-18 21:00:27,302 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 9 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:27,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 29 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:00:27,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-18 21:00:27,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-18 21:00:27,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.1) internal successors, (44), 41 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:27,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2022-11-18 21:00:27,319 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 21 [2022-11-18 21:00:27,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:27,319 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2022-11-18 21:00:27,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:27,320 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2022-11-18 21:00:27,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-18 21:00:27,321 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:27,321 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-11-18 21:00:27,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-18 21:00:27,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-18 21:00:27,526 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 21:00:27,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:27,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1410159193, now seen corresponding path program 2 times [2022-11-18 21:00:27,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:27,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349822091] [2022-11-18 21:00:27,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:27,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:27,739 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:27,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:27,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349822091] [2022-11-18 21:00:27,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349822091] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:00:27,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330047971] [2022-11-18 21:00:27,740 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 21:00:27,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:00:27,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:27,742 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:00:27,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 21:00:27,791 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 21:00:27,791 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:00:27,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-18 21:00:27,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:28,082 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 24 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:28,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:00:28,359 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:28,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330047971] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:00:28,359 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:00:28,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2022-11-18 21:00:28,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139805757] [2022-11-18 21:00:28,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:00:28,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-18 21:00:28,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:28,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-18 21:00:28,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=847, Unknown=0, NotChecked=0, Total=992 [2022-11-18 21:00:28,362 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 32 states, 31 states have (on average 2.4838709677419355) internal successors, (77), 32 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:28,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:28,775 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2022-11-18 21:00:28,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 21:00:28,776 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.4838709677419355) internal successors, (77), 32 states have internal predecessors, (77), 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 [2022-11-18 21:00:28,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:28,777 INFO L225 Difference]: With dead ends: 42 [2022-11-18 21:00:28,777 INFO L226 Difference]: Without dead ends: 41 [2022-11-18 21:00:28,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=415, Invalid=1565, Unknown=0, NotChecked=0, Total=1980 [2022-11-18 21:00:28,778 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 88 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:28,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 69 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:00:28,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-18 21:00:28,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-11-18 21:00:28,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.025) internal successors, (41), 40 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) [2022-11-18 21:00:28,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2022-11-18 21:00:28,785 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 27 [2022-11-18 21:00:28,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:28,785 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2022-11-18 21:00:28,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.4838709677419355) internal successors, (77), 32 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:28,786 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2022-11-18 21:00:28,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-18 21:00:28,787 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:28,787 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 1, 1, 1, 1] [2022-11-18 21:00:28,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:28,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 21:00:28,987 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 21:00:28,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:28,988 INFO L85 PathProgramCache]: Analyzing trace with hash 915144177, now seen corresponding path program 3 times [2022-11-18 21:00:28,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:28,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350286318] [2022-11-18 21:00:28,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:28,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:29,410 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:29,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:29,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350286318] [2022-11-18 21:00:29,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350286318] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:00:29,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433138747] [2022-11-18 21:00:29,411 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 21:00:29,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:00:29,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:29,412 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:00:29,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 21:00:29,480 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-18 21:00:29,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:00:29,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 21:00:29,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:30,012 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:30,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:00:30,557 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:30,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433138747] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:00:30,557 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:00:30,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 46 [2022-11-18 21:00:30,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804408562] [2022-11-18 21:00:30,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:00:30,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-11-18 21:00:30,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:30,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-11-18 21:00:30,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=332, Invalid=1830, Unknown=0, NotChecked=0, Total=2162 [2022-11-18 21:00:30,560 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand has 47 states, 46 states have (on average 2.5217391304347827) internal successors, (116), 47 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:31,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:31,623 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2022-11-18 21:00:31,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-18 21:00:31,624 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 2.5217391304347827) internal successors, (116), 47 states have internal predecessors, (116), 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 40 [2022-11-18 21:00:31,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:31,625 INFO L225 Difference]: With dead ends: 82 [2022-11-18 21:00:31,625 INFO L226 Difference]: Without dead ends: 81 [2022-11-18 21:00:31,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1113 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=892, Invalid=3530, Unknown=0, NotChecked=0, Total=4422 [2022-11-18 21:00:31,627 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 92 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:31,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 64 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 21:00:31,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-18 21:00:31,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2022-11-18 21:00:31,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.0125) internal successors, (81), 80 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:31,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 81 transitions. [2022-11-18 21:00:31,639 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 81 transitions. Word has length 40 [2022-11-18 21:00:31,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:31,639 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 81 transitions. [2022-11-18 21:00:31,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 2.5217391304347827) internal successors, (116), 47 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:31,640 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2022-11-18 21:00:31,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-18 21:00:31,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:31,646 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 1, 1, 1, 1] [2022-11-18 21:00:31,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:31,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 21:00:31,858 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 21:00:31,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:31,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1816526833, now seen corresponding path program 4 times [2022-11-18 21:00:31,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:31,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478152771] [2022-11-18 21:00:31,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:31,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:33,451 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:33,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:33,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478152771] [2022-11-18 21:00:33,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478152771] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:00:33,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888530599] [2022-11-18 21:00:33,452 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 21:00:33,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:00:33,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:33,453 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:00:33,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 21:00:33,537 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 21:00:33,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:00:33,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-18 21:00:33,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:35,279 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:35,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:00:37,060 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:37,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888530599] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:00:37,061 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:00:37,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 94 [2022-11-18 21:00:37,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292325854] [2022-11-18 21:00:37,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:00:37,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-11-18 21:00:37,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:37,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-11-18 21:00:37,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1180, Invalid=7750, Unknown=0, NotChecked=0, Total=8930 [2022-11-18 21:00:37,067 INFO L87 Difference]: Start difference. First operand 81 states and 81 transitions. Second operand has 95 states, 94 states have (on average 2.5106382978723403) internal successors, (236), 95 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:41,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:41,185 INFO L93 Difference]: Finished difference Result 162 states and 177 transitions. [2022-11-18 21:00:41,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-11-18 21:00:41,186 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 2.5106382978723403) internal successors, (236), 95 states have internal predecessors, (236), 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 80 [2022-11-18 21:00:41,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:41,187 INFO L225 Difference]: With dead ends: 162 [2022-11-18 21:00:41,188 INFO L226 Difference]: Without dead ends: 161 [2022-11-18 21:00:41,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5085 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=3640, Invalid=15542, Unknown=0, NotChecked=0, Total=19182 [2022-11-18 21:00:41,197 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 278 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:41,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 123 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 21:00:41,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-18 21:00:41,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-11-18 21:00:41,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 160 states have (on average 1.00625) internal successors, (161), 160 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:41,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 161 transitions. [2022-11-18 21:00:41,215 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 161 transitions. Word has length 80 [2022-11-18 21:00:41,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:41,216 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 161 transitions. [2022-11-18 21:00:41,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 2.5106382978723403) internal successors, (236), 95 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:41,216 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 161 transitions. [2022-11-18 21:00:41,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-18 21:00:41,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:41,218 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 1, 1, 1, 1] [2022-11-18 21:00:41,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:41,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 21:00:41,425 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 21:00:41,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:41,426 INFO L85 PathProgramCache]: Analyzing trace with hash -994311183, now seen corresponding path program 5 times [2022-11-18 21:00:41,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:41,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073813136] [2022-11-18 21:00:41,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:41,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:46,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2387 backedges. 0 proven. 2387 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:46,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:46,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073813136] [2022-11-18 21:00:46,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073813136] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:00:46,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638430168] [2022-11-18 21:00:46,244 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 21:00:46,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:00:46,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:46,246 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:00:46,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 21:00:46,466 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2022-11-18 21:00:46,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:00:46,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-18 21:00:46,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:51,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2387 backedges. 0 proven. 2387 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:51,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:00:57,668 INFO L134 CoverageAnalysis]: Checked inductivity of 2387 backedges. 0 proven. 2387 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:57,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638430168] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:00:57,669 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:00:57,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 190 [2022-11-18 21:00:57,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393567899] [2022-11-18 21:00:57,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:00:57,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2022-11-18 21:00:57,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:57,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2022-11-18 21:00:57,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4412, Invalid=31878, Unknown=0, NotChecked=0, Total=36290 [2022-11-18 21:00:57,679 INFO L87 Difference]: Start difference. First operand 161 states and 161 transitions. Second operand has 191 states, 190 states have (on average 2.5052631578947366) internal successors, (476), 191 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:19,771 INFO L93 Difference]: Finished difference Result 322 states and 353 transitions. [2022-11-18 21:01:19,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-11-18 21:01:19,772 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 190 states have (on average 2.5052631578947366) internal successors, (476), 191 states have internal predecessors, (476), 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 160 [2022-11-18 21:01:19,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:19,773 INFO L225 Difference]: With dead ends: 322 [2022-11-18 21:01:19,773 INFO L226 Difference]: Without dead ends: 321 [2022-11-18 21:01:19,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 281 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21669 ImplicationChecksByTransitivity, 33.0s TimeCoverageRelationStatistics Valid=14704, Invalid=65102, Unknown=0, NotChecked=0, Total=79806 [2022-11-18 21:01:19,785 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 968 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 915 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 1714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 915 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:19,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 228 Invalid, 1714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [915 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-18 21:01:19,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-11-18 21:01:19,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2022-11-18 21:01:19,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 320 states have (on average 1.003125) internal successors, (321), 320 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 321 transitions. [2022-11-18 21:01:19,833 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 321 transitions. Word has length 160 [2022-11-18 21:01:19,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:19,834 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 321 transitions. [2022-11-18 21:01:19,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 190 states have (on average 2.5052631578947366) internal successors, (476), 191 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,836 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 321 transitions. [2022-11-18 21:01:19,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-11-18 21:01:19,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:19,847 INFO L195 NwaCegarLoop]: trace histogram [64, 63, 63, 63, 63, 1, 1, 1, 1] [2022-11-18 21:01:19,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 21:01:20,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:01:20,048 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 21:01:20,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:20,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1582298127, now seen corresponding path program 6 times [2022-11-18 21:01:20,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:20,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920275725] [2022-11-18 21:01:20,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:20,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:20,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:36,146 INFO L134 CoverageAnalysis]: Checked inductivity of 9891 backedges. 0 proven. 9891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:36,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:36,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920275725] [2022-11-18 21:01:36,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920275725] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:01:36,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373386071] [2022-11-18 21:01:36,146 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 21:01:36,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:01:36,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:01:36,152 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:01:36,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 21:01:36,993 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2022-11-18 21:01:36,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:37,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 192 conjunts are in the unsatisfiable core [2022-11-18 21:01:37,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:56,049 INFO L134 CoverageAnalysis]: Checked inductivity of 9891 backedges. 0 proven. 9891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:56,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:02:18,975 INFO L134 CoverageAnalysis]: Checked inductivity of 9891 backedges. 0 proven. 9891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:02:18,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373386071] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:02:18,976 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:02:18,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128, 128] total 382 [2022-11-18 21:02:18,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363370555] [2022-11-18 21:02:18,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:02:18,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 383 states [2022-11-18 21:02:18,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:02:18,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 383 interpolants. [2022-11-18 21:02:18,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17020, Invalid=129286, Unknown=0, NotChecked=0, Total=146306 [2022-11-18 21:02:18,992 INFO L87 Difference]: Start difference. First operand 321 states and 321 transitions. Second operand has 383 states, 382 states have (on average 2.5026178010471205) internal successors, (956), 383 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:44,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:04:44,594 INFO L93 Difference]: Finished difference Result 642 states and 705 transitions. [2022-11-18 21:04:44,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2022-11-18 21:04:44,595 INFO L78 Accepts]: Start accepts. Automaton has has 383 states, 382 states have (on average 2.5026178010471205) internal successors, (956), 383 states have internal predecessors, (956), 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 320 [2022-11-18 21:04:44,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:04:44,598 INFO L225 Difference]: With dead ends: 642 [2022-11-18 21:04:44,598 INFO L226 Difference]: Without dead ends: 641 [2022-11-18 21:04:44,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 954 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 569 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89397 ImplicationChecksByTransitivity, 188.7s TimeCoverageRelationStatistics Valid=59104, Invalid=266366, Unknown=0, NotChecked=0, Total=325470 [2022-11-18 21:04:44,617 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2826 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 2712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2826 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 4298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2712 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:04:44,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2826 Valid, 445 Invalid, 4298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2712 Valid, 1586 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-18 21:04:44,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-11-18 21:04:44,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2022-11-18 21:04:44,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 640 states have (on average 1.0015625) internal successors, (641), 640 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:44,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 641 transitions. [2022-11-18 21:04:44,643 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 641 transitions. Word has length 320 [2022-11-18 21:04:44,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:04:44,644 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 641 transitions. [2022-11-18 21:04:44,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 383 states, 382 states have (on average 2.5026178010471205) internal successors, (956), 383 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:44,645 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 641 transitions. [2022-11-18 21:04:44,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2022-11-18 21:04:44,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:04:44,662 INFO L195 NwaCegarLoop]: trace histogram [128, 127, 127, 127, 127, 1, 1, 1, 1] [2022-11-18 21:04:44,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 21:04:44,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-18 21:04:44,870 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 21:04:44,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:44,871 INFO L85 PathProgramCache]: Analyzing trace with hash -877126671, now seen corresponding path program 7 times [2022-11-18 21:04:44,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:44,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126061050] [2022-11-18 21:04:44,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:44,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:05:59,735 INFO L134 CoverageAnalysis]: Checked inductivity of 40259 backedges. 0 proven. 40259 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:05:59,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:05:59,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126061050] [2022-11-18 21:05:59,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126061050] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:05:59,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413071426] [2022-11-18 21:05:59,736 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 21:05:59,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:05:59,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:05:59,738 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:05:59,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a00a66-515f-4161-9c82-c8ea1c05a02c/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 21:06:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:00,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 1428 conjuncts, 384 conjunts are in the unsatisfiable core [2022-11-18 21:06:00,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:07:24,361 INFO L134 CoverageAnalysis]: Checked inductivity of 40259 backedges. 0 proven. 40259 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:07:24,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:09:06,196 INFO L134 CoverageAnalysis]: Checked inductivity of 40259 backedges. 0 proven. 40259 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:09:06,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413071426] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:09:06,197 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:09:06,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [256, 256, 256] total 766 [2022-11-18 21:09:06,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486812993] [2022-11-18 21:09:06,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:09:06,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 767 states [2022-11-18 21:09:06,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:06,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 767 interpolants. [2022-11-18 21:09:06,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66812, Invalid=520710, Unknown=0, NotChecked=0, Total=587522 [2022-11-18 21:09:06,257 INFO L87 Difference]: Start difference. First operand 641 states and 641 transitions. Second operand has 767 states, 766 states have (on average 2.5013054830287205) internal successors, (1916), 767 states have internal predecessors, (1916), 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)