./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-simple/nested_5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-simple/nested_5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3d0f32d2f39934bb8fd732fa206acfa5d2fb4cacaee37919c0e4326d55891c86 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 09:14:58,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:14:58,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:14:58,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:14:58,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:14:58,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:14:58,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:14:58,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:14:58,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:14:58,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:14:58,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:14:58,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:14:58,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:14:58,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:14:58,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:14:58,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:14:58,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:14:58,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:14:58,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:14:58,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:14:58,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:14:58,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:14:58,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:14:58,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:14:58,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:14:58,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:14:58,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:14:58,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:14:58,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:14:58,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:14:58,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:14:58,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:14:58,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:14:58,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:14:58,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:14:58,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:14:58,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:14:58,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:14:58,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:14:58,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:14:58,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:14:58,585 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 09:14:58,639 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:14:58,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:14:58,640 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:14:58,640 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:14:58,641 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:14:58,642 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:14:58,643 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:14:58,643 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:14:58,643 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:14:58,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:14:58,645 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 09:14:58,645 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 09:14:58,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:14:58,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 09:14:58,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:14:58,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:14:58,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:14:58,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:14:58,647 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 09:14:58,648 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 09:14:58,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:14:58,648 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:14:58,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:14:58,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:14:58,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:14:58,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:14:58,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:14:58,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:14:58,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:14:58,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:14:58,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:14:58,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:14:58,652 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:14:58,652 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:14:58,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:14:58,653 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_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d0f32d2f39934bb8fd732fa206acfa5d2fb4cacaee37919c0e4326d55891c86 [2022-11-21 09:14:58,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:14:58,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:14:58,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:14:58,972 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:14:58,973 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:14:58,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/loop-simple/nested_5.c [2022-11-21 09:15:02,394 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:15:02,693 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:15:02,694 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/sv-benchmarks/c/loop-simple/nested_5.c [2022-11-21 09:15:02,703 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/data/9580a07d3/d1b03b8bc0e34d78930262261a814872/FLAGb38d44e82 [2022-11-21 09:15:02,732 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/data/9580a07d3/d1b03b8bc0e34d78930262261a814872 [2022-11-21 09:15:02,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:15:02,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:15:02,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:15:02,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:15:02,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:15:02,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:15:02" (1/1) ... [2022-11-21 09:15:02,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@caede4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:15:02, skipping insertion in model container [2022-11-21 09:15:02,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:15:02" (1/1) ... [2022-11-21 09:15:02,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:15:02,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:15:03,033 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/sv-benchmarks/c/loop-simple/nested_5.c[899,912] [2022-11-21 09:15:03,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:15:03,050 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:15:03,086 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/sv-benchmarks/c/loop-simple/nested_5.c[899,912] [2022-11-21 09:15:03,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:15:03,110 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:15:03,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:15:03 WrapperNode [2022-11-21 09:15:03,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:15:03,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:15:03,112 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:15:03,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:15:03,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:15:03" (1/1) ... [2022-11-21 09:15:03,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:15:03" (1/1) ... [2022-11-21 09:15:03,164 INFO L138 Inliner]: procedures = 10, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 69 [2022-11-21 09:15:03,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:15:03,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:15:03,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:15:03,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:15:03,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:15:03" (1/1) ... [2022-11-21 09:15:03,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:15:03" (1/1) ... [2022-11-21 09:15:03,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:15:03" (1/1) ... [2022-11-21 09:15:03,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:15:03" (1/1) ... [2022-11-21 09:15:03,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:15:03" (1/1) ... [2022-11-21 09:15:03,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:15:03" (1/1) ... [2022-11-21 09:15:03,189 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:15:03" (1/1) ... [2022-11-21 09:15:03,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:15:03" (1/1) ... [2022-11-21 09:15:03,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:15:03,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:15:03,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:15:03,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:15:03,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:15:03" (1/1) ... [2022-11-21 09:15:03,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:15:03,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:15:03,234 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:15:03,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:15:03,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:15:03,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:15:03,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:15:03,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 09:15:03,401 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:15:03,403 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:15:03,563 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:15:03,571 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:15:03,571 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-21 09:15:03,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:15:03 BoogieIcfgContainer [2022-11-21 09:15:03,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:15:03,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:15:03,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:15:03,582 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:15:03,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:15:02" (1/3) ... [2022-11-21 09:15:03,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a7b6e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:15:03, skipping insertion in model container [2022-11-21 09:15:03,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:15:03" (2/3) ... [2022-11-21 09:15:03,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a7b6e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:15:03, skipping insertion in model container [2022-11-21 09:15:03,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:15:03" (3/3) ... [2022-11-21 09:15:03,586 INFO L112 eAbstractionObserver]: Analyzing ICFG nested_5.c [2022-11-21 09:15:03,611 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:15:03,612 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-21 09:15:03,675 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:15:03,683 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;@53e58345, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:15:03,684 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-21 09:15:03,691 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 2.0) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:03,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 09:15:03,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:15:03,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 09:15:03,699 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 09:15:03,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:15:03,707 INFO L85 PathProgramCache]: Analyzing trace with hash 28698911, now seen corresponding path program 1 times [2022-11-21 09:15:03,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:15:03,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492699581] [2022-11-21 09:15:03,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:03,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:15:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:03,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:15:03,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:15:03,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492699581] [2022-11-21 09:15:03,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492699581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:15:03,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:15:03,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:15:03,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900779157] [2022-11-21 09:15:03,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:15:03,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:15:03,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:15:03,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:15:03,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:15:03,975 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 2.0) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) 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) [2022-11-21 09:15:04,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:15:04,033 INFO L93 Difference]: Finished difference Result 80 states and 110 transitions. [2022-11-21 09:15:04,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:15:04,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) 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 [2022-11-21 09:15:04,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:15:04,046 INFO L225 Difference]: With dead ends: 80 [2022-11-21 09:15:04,047 INFO L226 Difference]: Without dead ends: 45 [2022-11-21 09:15:04,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:15:04,055 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 20 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:15:04,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 60 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:15:04,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-21 09:15:04,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2022-11-21 09:15:04,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.793103448275862) internal successors, (52), 38 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:04,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 52 transitions. [2022-11-21 09:15:04,103 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 52 transitions. Word has length 5 [2022-11-21 09:15:04,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:15:04,104 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 52 transitions. [2022-11-21 09:15:04,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) 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) [2022-11-21 09:15:04,105 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2022-11-21 09:15:04,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 09:15:04,105 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:15:04,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:15:04,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 09:15:04,106 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 09:15:04,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:15:04,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1809866121, now seen corresponding path program 1 times [2022-11-21 09:15:04,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:15:04,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395831586] [2022-11-21 09:15:04,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:04,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:15:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:04,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:15:04,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:15:04,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395831586] [2022-11-21 09:15:04,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395831586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:15:04,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:15:04,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:15:04,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230024647] [2022-11-21 09:15:04,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:15:04,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:15:04,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:15:04,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:15:04,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:15:04,224 INFO L87 Difference]: Start difference. First operand 39 states and 52 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:04,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:15:04,261 INFO L93 Difference]: Finished difference Result 90 states and 126 transitions. [2022-11-21 09:15:04,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:15:04,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-21 09:15:04,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:15:04,263 INFO L225 Difference]: With dead ends: 90 [2022-11-21 09:15:04,264 INFO L226 Difference]: Without dead ends: 53 [2022-11-21 09:15:04,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:15:04,285 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 8 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:15:04,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 51 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:15:04,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-21 09:15:04,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2022-11-21 09:15:04,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 41 states have (on average 1.7073170731707317) internal successors, (70), 50 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:04,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-11-21 09:15:04,299 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 7 [2022-11-21 09:15:04,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:15:04,299 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-11-21 09:15:04,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:04,300 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-11-21 09:15:04,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 09:15:04,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:15:04,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:15:04,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 09:15:04,302 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 09:15:04,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:15:04,303 INFO L85 PathProgramCache]: Analyzing trace with hash 271276373, now seen corresponding path program 1 times [2022-11-21 09:15:04,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:15:04,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019105358] [2022-11-21 09:15:04,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:04,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:15:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:04,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:15:04,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:15:04,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019105358] [2022-11-21 09:15:04,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019105358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:15:04,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:15:04,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:15:04,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101187914] [2022-11-21 09:15:04,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:15:04,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:15:04,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:15:04,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:15:04,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:15:04,447 INFO L87 Difference]: Start difference. First operand 51 states and 70 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:04,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:15:04,523 INFO L93 Difference]: Finished difference Result 112 states and 162 transitions. [2022-11-21 09:15:04,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:15:04,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-21 09:15:04,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:15:04,540 INFO L225 Difference]: With dead ends: 112 [2022-11-21 09:15:04,540 INFO L226 Difference]: Without dead ends: 63 [2022-11-21 09:15:04,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:15:04,543 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:15:04,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 51 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:15:04,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-21 09:15:04,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-11-21 09:15:04,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 53 states have (on average 1.5471698113207548) internal successors, (82), 62 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:04,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 82 transitions. [2022-11-21 09:15:04,576 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 82 transitions. Word has length 8 [2022-11-21 09:15:04,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:15:04,577 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 82 transitions. [2022-11-21 09:15:04,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:04,578 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 82 transitions. [2022-11-21 09:15:04,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 09:15:04,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:15:04,579 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:15:04,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 09:15:04,584 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 09:15:04,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:15:04,585 INFO L85 PathProgramCache]: Analyzing trace with hash -181236569, now seen corresponding path program 1 times [2022-11-21 09:15:04,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:15:04,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521139590] [2022-11-21 09:15:04,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:04,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:15:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:04,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:15:04,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:15:04,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521139590] [2022-11-21 09:15:04,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521139590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:15:04,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:15:04,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:15:04,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469006073] [2022-11-21 09:15:04,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:15:04,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:15:04,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:15:04,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:15:04,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:15:04,695 INFO L87 Difference]: Start difference. First operand 63 states and 82 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:04,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:15:04,770 INFO L93 Difference]: Finished difference Result 170 states and 228 transitions. [2022-11-21 09:15:04,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:15:04,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-21 09:15:04,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:15:04,778 INFO L225 Difference]: With dead ends: 170 [2022-11-21 09:15:04,782 INFO L226 Difference]: Without dead ends: 109 [2022-11-21 09:15:04,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:15:04,784 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 14 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:15:04,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 51 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:15:04,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-21 09:15:04,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 105. [2022-11-21 09:15:04,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 95 states have (on average 1.4947368421052631) internal successors, (142), 104 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:04,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 142 transitions. [2022-11-21 09:15:04,825 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 142 transitions. Word has length 9 [2022-11-21 09:15:04,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:15:04,825 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 142 transitions. [2022-11-21 09:15:04,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:04,826 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 142 transitions. [2022-11-21 09:15:04,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 09:15:04,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:15:04,827 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:15:04,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 09:15:04,828 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 09:15:04,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:15:04,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1533946725, now seen corresponding path program 1 times [2022-11-21 09:15:04,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:15:04,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743658203] [2022-11-21 09:15:04,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:04,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:15:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:04,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 09:15:04,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:15:04,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743658203] [2022-11-21 09:15:04,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743658203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:15:04,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:15:04,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:15:04,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154476237] [2022-11-21 09:15:04,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:15:04,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:15:04,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:15:04,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:15:04,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:15:04,947 INFO L87 Difference]: Start difference. First operand 105 states and 142 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:05,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:15:05,003 INFO L93 Difference]: Finished difference Result 105 states and 142 transitions. [2022-11-21 09:15:05,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:15:05,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 [2022-11-21 09:15:05,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:15:05,023 INFO L225 Difference]: With dead ends: 105 [2022-11-21 09:15:05,024 INFO L226 Difference]: Without dead ends: 104 [2022-11-21 09:15:05,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:15:05,026 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 2 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:15:05,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 49 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:15:05,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-21 09:15:05,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2022-11-21 09:15:05,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 95 states have (on average 1.4105263157894736) internal successors, (134), 103 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:05,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 134 transitions. [2022-11-21 09:15:05,046 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 134 transitions. Word has length 11 [2022-11-21 09:15:05,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:15:05,046 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 134 transitions. [2022-11-21 09:15:05,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:05,047 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 134 transitions. [2022-11-21 09:15:05,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 09:15:05,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:15:05,048 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:15:05,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 09:15:05,048 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 09:15:05,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:15:05,049 INFO L85 PathProgramCache]: Analyzing trace with hash -307708142, now seen corresponding path program 1 times [2022-11-21 09:15:05,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:15:05,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947082071] [2022-11-21 09:15:05,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:05,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:15:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:05,113 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:15:05,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:15:05,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947082071] [2022-11-21 09:15:05,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947082071] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:15:05,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157424229] [2022-11-21 09:15:05,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:05,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:15:05,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:15:05,118 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:15:05,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 09:15:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:05,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 09:15:05,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:15:05,240 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:15:05,241 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:15:05,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157424229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:15:05,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:15:05,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-21 09:15:05,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381708822] [2022-11-21 09:15:05,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:15:05,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:15:05,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:15:05,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:15:05,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:15:05,244 INFO L87 Difference]: Start difference. First operand 104 states and 134 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:05,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:15:05,275 INFO L93 Difference]: Finished difference Result 104 states and 134 transitions. [2022-11-21 09:15:05,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 09:15:05,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 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 [2022-11-21 09:15:05,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:15:05,277 INFO L225 Difference]: With dead ends: 104 [2022-11-21 09:15:05,278 INFO L226 Difference]: Without dead ends: 103 [2022-11-21 09:15:05,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:15:05,284 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 46 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:15:05,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 26 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:15:05,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-21 09:15:05,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 87. [2022-11-21 09:15:05,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 86 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:05,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 110 transitions. [2022-11-21 09:15:05,312 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 110 transitions. Word has length 12 [2022-11-21 09:15:05,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:15:05,316 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 110 transitions. [2022-11-21 09:15:05,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:05,317 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 110 transitions. [2022-11-21 09:15:05,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-21 09:15:05,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:15:05,318 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:15:05,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 09:15:05,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-21 09:15:05,525 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 09:15:05,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:15:05,526 INFO L85 PathProgramCache]: Analyzing trace with hash 541633062, now seen corresponding path program 1 times [2022-11-21 09:15:05,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:15:05,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597179602] [2022-11-21 09:15:05,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:05,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:15:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:05,590 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 09:15:05,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:15:05,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597179602] [2022-11-21 09:15:05,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597179602] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:15:05,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945972909] [2022-11-21 09:15:05,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:05,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:15:05,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:15:05,594 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:15:05,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 09:15:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:05,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 09:15:05,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:15:05,677 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 09:15:05,678 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:15:05,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945972909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:15:05,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:15:05,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-21 09:15:05,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503976232] [2022-11-21 09:15:05,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:15:05,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:15:05,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:15:05,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:15:05,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:15:05,681 INFO L87 Difference]: Start difference. First operand 87 states and 110 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:05,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:15:05,708 INFO L93 Difference]: Finished difference Result 87 states and 110 transitions. [2022-11-21 09:15:05,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:15:05,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-21 09:15:05,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:15:05,711 INFO L225 Difference]: With dead ends: 87 [2022-11-21 09:15:05,711 INFO L226 Difference]: Without dead ends: 86 [2022-11-21 09:15:05,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:15:05,713 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 2 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:15:05,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 41 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:15:05,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-21 09:15:05,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-11-21 09:15:05,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 79 states have (on average 1.3417721518987342) internal successors, (106), 85 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:05,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 106 transitions. [2022-11-21 09:15:05,743 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 106 transitions. Word has length 18 [2022-11-21 09:15:05,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:15:05,744 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 106 transitions. [2022-11-21 09:15:05,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:05,745 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 106 transitions. [2022-11-21 09:15:05,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-21 09:15:05,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:15:05,747 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:15:05,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 09:15:05,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-21 09:15:05,954 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 09:15:05,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:15:05,954 INFO L85 PathProgramCache]: Analyzing trace with hash -389244178, now seen corresponding path program 1 times [2022-11-21 09:15:05,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:15:05,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517205287] [2022-11-21 09:15:05,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:05,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:15:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:06,044 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 09:15:06,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:15:06,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517205287] [2022-11-21 09:15:06,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517205287] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:15:06,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138574518] [2022-11-21 09:15:06,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:06,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:15:06,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:15:06,055 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:15:06,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 09:15:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:06,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 09:15:06,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:15:06,151 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 09:15:06,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:15:06,195 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 09:15:06,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138574518] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:15:06,196 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 09:15:06,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-21 09:15:06,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118802416] [2022-11-21 09:15:06,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 09:15:06,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:15:06,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:15:06,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:15:06,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:15:06,198 INFO L87 Difference]: Start difference. First operand 86 states and 106 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:06,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:15:06,263 INFO L93 Difference]: Finished difference Result 242 states and 306 transitions. [2022-11-21 09:15:06,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 09:15:06,264 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-21 09:15:06,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:15:06,265 INFO L225 Difference]: With dead ends: 242 [2022-11-21 09:15:06,266 INFO L226 Difference]: Without dead ends: 158 [2022-11-21 09:15:06,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:15:06,270 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 12 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:15:06,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 69 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:15:06,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-11-21 09:15:06,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2022-11-21 09:15:06,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 151 states have (on average 1.1788079470198676) internal successors, (178), 157 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:06,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 178 transitions. [2022-11-21 09:15:06,296 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 178 transitions. Word has length 19 [2022-11-21 09:15:06,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:15:06,297 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 178 transitions. [2022-11-21 09:15:06,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:06,297 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 178 transitions. [2022-11-21 09:15:06,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-21 09:15:06,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:15:06,299 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:15:06,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 09:15:06,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:15:06,505 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 09:15:06,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:15:06,506 INFO L85 PathProgramCache]: Analyzing trace with hash 210294599, now seen corresponding path program 1 times [2022-11-21 09:15:06,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:15:06,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884159715] [2022-11-21 09:15:06,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:06,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:15:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:06,621 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-21 09:15:06,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:15:06,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884159715] [2022-11-21 09:15:06,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884159715] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:15:06,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518042318] [2022-11-21 09:15:06,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:06,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:15:06,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:15:06,633 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:15:06,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 09:15:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:06,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 09:15:06,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:15:06,797 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-21 09:15:06,797 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:15:06,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518042318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:15:06,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:15:06,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-21 09:15:06,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262633004] [2022-11-21 09:15:06,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:15:06,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:15:06,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:15:06,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:15:06,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:15:06,801 INFO L87 Difference]: Start difference. First operand 158 states and 178 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:06,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:15:06,843 INFO L93 Difference]: Finished difference Result 313 states and 354 transitions. [2022-11-21 09:15:06,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:15:06,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-21 09:15:06,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:15:06,846 INFO L225 Difference]: With dead ends: 313 [2022-11-21 09:15:06,846 INFO L226 Difference]: Without dead ends: 312 [2022-11-21 09:15:06,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:15:06,847 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 7 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:15:06,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 46 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:15:06,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-11-21 09:15:06,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 306. [2022-11-21 09:15:06,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 299 states have (on average 1.173913043478261) internal successors, (351), 305 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:06,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 351 transitions. [2022-11-21 09:15:06,913 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 351 transitions. Word has length 29 [2022-11-21 09:15:06,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:15:06,914 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 351 transitions. [2022-11-21 09:15:06,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:06,914 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 351 transitions. [2022-11-21 09:15:06,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-21 09:15:06,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:15:06,917 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:15:06,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 09:15:07,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-21 09:15:07,124 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 09:15:07,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:15:07,124 INFO L85 PathProgramCache]: Analyzing trace with hash -2070801918, now seen corresponding path program 1 times [2022-11-21 09:15:07,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:15:07,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052934050] [2022-11-21 09:15:07,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:07,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:15:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:07,236 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-21 09:15:07,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:15:07,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052934050] [2022-11-21 09:15:07,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052934050] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:15:07,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895943591] [2022-11-21 09:15:07,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:07,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:15:07,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:15:07,238 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:15:07,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 09:15:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:07,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 09:15:07,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:15:07,373 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-21 09:15:07,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:15:07,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895943591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:15:07,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:15:07,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-21 09:15:07,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381816286] [2022-11-21 09:15:07,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:15:07,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:15:07,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:15:07,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:15:07,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:15:07,376 INFO L87 Difference]: Start difference. First operand 306 states and 351 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 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) [2022-11-21 09:15:07,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:15:07,408 INFO L93 Difference]: Finished difference Result 306 states and 351 transitions. [2022-11-21 09:15:07,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:15:07,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 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 30 [2022-11-21 09:15:07,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:15:07,410 INFO L225 Difference]: With dead ends: 306 [2022-11-21 09:15:07,410 INFO L226 Difference]: Without dead ends: 305 [2022-11-21 09:15:07,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:15:07,411 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:15:07,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 24 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:15:07,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-11-21 09:15:07,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2022-11-21 09:15:07,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 299 states have (on average 1.1705685618729098) internal successors, (350), 304 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:07,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 350 transitions. [2022-11-21 09:15:07,440 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 350 transitions. Word has length 30 [2022-11-21 09:15:07,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:15:07,440 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 350 transitions. [2022-11-21 09:15:07,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 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) [2022-11-21 09:15:07,440 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 350 transitions. [2022-11-21 09:15:07,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-21 09:15:07,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:15:07,441 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:15:07,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-21 09:15:07,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:15:07,648 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 09:15:07,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:15:07,648 INFO L85 PathProgramCache]: Analyzing trace with hash 385405886, now seen corresponding path program 2 times [2022-11-21 09:15:07,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:15:07,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419470602] [2022-11-21 09:15:07,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:07,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:15:07,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:07,749 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-21 09:15:07,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:15:07,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419470602] [2022-11-21 09:15:07,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419470602] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:15:07,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243782106] [2022-11-21 09:15:07,750 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 09:15:07,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:15:07,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:15:07,751 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:15:07,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 09:15:07,812 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 09:15:07,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 09:15:07,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 09:15:07,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:15:07,896 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-21 09:15:07,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:15:07,982 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-21 09:15:07,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243782106] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:15:07,982 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 09:15:07,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 10 [2022-11-21 09:15:07,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708383662] [2022-11-21 09:15:07,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 09:15:07,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 09:15:07,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:15:07,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 09:15:07,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:15:07,988 INFO L87 Difference]: Start difference. First operand 305 states and 350 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:08,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:15:08,227 INFO L93 Difference]: Finished difference Result 686 states and 808 transitions. [2022-11-21 09:15:08,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 09:15:08,227 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 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 37 [2022-11-21 09:15:08,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:15:08,230 INFO L225 Difference]: With dead ends: 686 [2022-11-21 09:15:08,230 INFO L226 Difference]: Without dead ends: 400 [2022-11-21 09:15:08,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 63 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2022-11-21 09:15:08,234 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 40 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:15:08,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 73 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:15:08,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-11-21 09:15:08,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 232. [2022-11-21 09:15:08,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 227 states have (on average 1.1541850220264318) internal successors, (262), 231 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:08,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 262 transitions. [2022-11-21 09:15:08,261 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 262 transitions. Word has length 37 [2022-11-21 09:15:08,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:15:08,261 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 262 transitions. [2022-11-21 09:15:08,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:08,262 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 262 transitions. [2022-11-21 09:15:08,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-21 09:15:08,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:15:08,271 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:15:08,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-21 09:15:08,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:15:08,477 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 09:15:08,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:15:08,478 INFO L85 PathProgramCache]: Analyzing trace with hash 165609201, now seen corresponding path program 1 times [2022-11-21 09:15:08,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:15:08,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898524467] [2022-11-21 09:15:08,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:08,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:15:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:08,577 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 128 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-11-21 09:15:08,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:15:08,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898524467] [2022-11-21 09:15:08,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898524467] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:15:08,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525699236] [2022-11-21 09:15:08,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:08,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:15:08,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:15:08,579 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:15:08,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-21 09:15:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:08,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 09:15:08,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:15:08,713 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-21 09:15:08,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:15:08,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525699236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:15:08,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:15:08,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-21 09:15:08,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394410801] [2022-11-21 09:15:08,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:15:08,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:15:08,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:15:08,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:15:08,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:15:08,716 INFO L87 Difference]: Start difference. First operand 232 states and 262 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 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) [2022-11-21 09:15:08,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:15:08,749 INFO L93 Difference]: Finished difference Result 232 states and 262 transitions. [2022-11-21 09:15:08,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:15:08,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-11-21 09:15:08,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:15:08,751 INFO L225 Difference]: With dead ends: 232 [2022-11-21 09:15:08,751 INFO L226 Difference]: Without dead ends: 231 [2022-11-21 09:15:08,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:15:08,752 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:15:08,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 31 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:15:08,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-11-21 09:15:08,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2022-11-21 09:15:08,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 227 states have (on average 1.1365638766519823) internal successors, (258), 230 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:08,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 258 transitions. [2022-11-21 09:15:08,780 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 258 transitions. Word has length 55 [2022-11-21 09:15:08,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:15:08,780 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 258 transitions. [2022-11-21 09:15:08,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 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) [2022-11-21 09:15:08,780 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 258 transitions. [2022-11-21 09:15:08,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-21 09:15:08,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:15:08,783 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-21 09:15:08,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-21 09:15:08,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:15:08,990 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 09:15:08,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:15:08,990 INFO L85 PathProgramCache]: Analyzing trace with hash 838918026, now seen corresponding path program 1 times [2022-11-21 09:15:08,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:15:08,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29131384] [2022-11-21 09:15:08,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:08,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:15:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:09,052 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 128 proven. 1 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-21 09:15:09,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:15:09,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29131384] [2022-11-21 09:15:09,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29131384] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:15:09,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621899966] [2022-11-21 09:15:09,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:09,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:15:09,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:15:09,054 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:15:09,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-21 09:15:09,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:09,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 09:15:09,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:15:09,184 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 128 proven. 1 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-21 09:15:09,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:15:09,235 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 128 proven. 1 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-21 09:15:09,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621899966] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:15:09,236 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 09:15:09,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-21 09:15:09,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245371293] [2022-11-21 09:15:09,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 09:15:09,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:15:09,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:15:09,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:15:09,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:15:09,238 INFO L87 Difference]: Start difference. First operand 231 states and 258 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:09,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:15:09,334 INFO L93 Difference]: Finished difference Result 962 states and 1062 transitions. [2022-11-21 09:15:09,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 09:15:09,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-11-21 09:15:09,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:15:09,337 INFO L225 Difference]: With dead ends: 962 [2022-11-21 09:15:09,337 INFO L226 Difference]: Without dead ends: 759 [2022-11-21 09:15:09,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:15:09,339 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 24 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:15:09,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 64 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:15:09,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2022-11-21 09:15:09,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 759. [2022-11-21 09:15:09,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 759 states, 755 states have (on average 1.0728476821192052) internal successors, (810), 758 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:09,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 810 transitions. [2022-11-21 09:15:09,417 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 810 transitions. Word has length 56 [2022-11-21 09:15:09,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:15:09,417 INFO L495 AbstractCegarLoop]: Abstraction has 759 states and 810 transitions. [2022-11-21 09:15:09,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:09,417 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 810 transitions. [2022-11-21 09:15:09,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-21 09:15:09,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:15:09,419 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-21 09:15:09,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-21 09:15:09,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-21 09:15:09,625 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 09:15:09,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:15:09,626 INFO L85 PathProgramCache]: Analyzing trace with hash -78498982, now seen corresponding path program 2 times [2022-11-21 09:15:09,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:15:09,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460807912] [2022-11-21 09:15:09,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:09,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:15:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:09,918 INFO L134 CoverageAnalysis]: Checked inductivity of 3900 backedges. 0 proven. 1996 refuted. 0 times theorem prover too weak. 1904 trivial. 0 not checked. [2022-11-21 09:15:09,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:15:09,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460807912] [2022-11-21 09:15:09,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460807912] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:15:09,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084714151] [2022-11-21 09:15:09,919 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 09:15:09,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:15:09,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:15:09,921 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:15:09,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-21 09:15:10,044 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 09:15:10,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 09:15:10,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 09:15:10,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:15:10,233 INFO L134 CoverageAnalysis]: Checked inductivity of 3900 backedges. 1994 proven. 748 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2022-11-21 09:15:10,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:15:10,466 INFO L134 CoverageAnalysis]: Checked inductivity of 3900 backedges. 1994 proven. 748 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2022-11-21 09:15:10,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084714151] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:15:10,466 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 09:15:10,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 10 [2022-11-21 09:15:10,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140631973] [2022-11-21 09:15:10,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 09:15:10,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 09:15:10,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:15:10,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 09:15:10,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:15:10,469 INFO L87 Difference]: Start difference. First operand 759 states and 810 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:10,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:15:10,809 INFO L93 Difference]: Finished difference Result 1775 states and 1905 transitions. [2022-11-21 09:15:10,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 09:15:10,810 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 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 188 [2022-11-21 09:15:10,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:15:10,814 INFO L225 Difference]: With dead ends: 1775 [2022-11-21 09:15:10,814 INFO L226 Difference]: Without dead ends: 1110 [2022-11-21 09:15:10,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 365 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2022-11-21 09:15:10,816 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 82 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:15:10,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 105 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:15:10,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2022-11-21 09:15:10,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 570. [2022-11-21 09:15:10,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 567 states have (on average 1.0687830687830688) internal successors, (606), 569 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:10,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 606 transitions. [2022-11-21 09:15:10,881 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 606 transitions. Word has length 188 [2022-11-21 09:15:10,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:15:10,882 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 606 transitions. [2022-11-21 09:15:10,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:10,882 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 606 transitions. [2022-11-21 09:15:10,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-11-21 09:15:10,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:15:10,885 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 72, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-21 09:15:10,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-21 09:15:11,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:15:11,092 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 09:15:11,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:15:11,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1328734948, now seen corresponding path program 1 times [2022-11-21 09:15:11,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:15:11,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493875425] [2022-11-21 09:15:11,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:11,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:15:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:11,330 INFO L134 CoverageAnalysis]: Checked inductivity of 8831 backedges. 4484 proven. 1 refuted. 0 times theorem prover too weak. 4346 trivial. 0 not checked. [2022-11-21 09:15:11,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:15:11,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493875425] [2022-11-21 09:15:11,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493875425] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:15:11,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371443653] [2022-11-21 09:15:11,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:11,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:15:11,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:15:11,332 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:15:11,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-21 09:15:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:11,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 09:15:11,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:15:11,768 INFO L134 CoverageAnalysis]: Checked inductivity of 8831 backedges. 4484 proven. 0 refuted. 0 times theorem prover too weak. 4347 trivial. 0 not checked. [2022-11-21 09:15:11,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:15:11,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371443653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:15:11,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:15:11,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-21 09:15:11,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478154155] [2022-11-21 09:15:11,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:15:11,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:15:11,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:15:11,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:15:11,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:15:11,771 INFO L87 Difference]: Start difference. First operand 570 states and 606 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:11,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:15:11,833 INFO L93 Difference]: Finished difference Result 570 states and 606 transitions. [2022-11-21 09:15:11,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:15:11,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 282 [2022-11-21 09:15:11,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:15:11,837 INFO L225 Difference]: With dead ends: 570 [2022-11-21 09:15:11,837 INFO L226 Difference]: Without dead ends: 569 [2022-11-21 09:15:11,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:15:11,838 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:15:11,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 23 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:15:11,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-11-21 09:15:11,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2022-11-21 09:15:11,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 567 states have (on average 1.0652557319223985) internal successors, (604), 568 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:11,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 604 transitions. [2022-11-21 09:15:11,900 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 604 transitions. Word has length 282 [2022-11-21 09:15:11,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:15:11,900 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 604 transitions. [2022-11-21 09:15:11,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:11,901 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 604 transitions. [2022-11-21 09:15:11,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-11-21 09:15:11,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:15:11,906 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 72, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-21 09:15:11,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-21 09:15:12,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-21 09:15:12,112 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 09:15:12,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:15:12,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1758889670, now seen corresponding path program 1 times [2022-11-21 09:15:12,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:15:12,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38376121] [2022-11-21 09:15:12,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:12,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:15:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:12,380 INFO L134 CoverageAnalysis]: Checked inductivity of 8832 backedges. 4484 proven. 1 refuted. 0 times theorem prover too weak. 4347 trivial. 0 not checked. [2022-11-21 09:15:12,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:15:12,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38376121] [2022-11-21 09:15:12,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38376121] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:15:12,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114398327] [2022-11-21 09:15:12,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:12,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:15:12,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:15:12,382 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:15:12,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-21 09:15:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:12,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 09:15:12,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:15:12,801 INFO L134 CoverageAnalysis]: Checked inductivity of 8832 backedges. 4484 proven. 1 refuted. 0 times theorem prover too weak. 4347 trivial. 0 not checked. [2022-11-21 09:15:12,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:15:13,099 INFO L134 CoverageAnalysis]: Checked inductivity of 8832 backedges. 4484 proven. 1 refuted. 0 times theorem prover too weak. 4347 trivial. 0 not checked. [2022-11-21 09:15:13,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114398327] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:15:13,100 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 09:15:13,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-21 09:15:13,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524715889] [2022-11-21 09:15:13,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 09:15:13,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:15:13,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:15:13,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:15:13,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:15:13,103 INFO L87 Difference]: Start difference. First operand 569 states and 604 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:13,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:15:13,401 INFO L93 Difference]: Finished difference Result 2629 states and 2787 transitions. [2022-11-21 09:15:13,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 09:15:13,402 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 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 283 [2022-11-21 09:15:13,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:15:13,410 INFO L225 Difference]: With dead ends: 2629 [2022-11-21 09:15:13,411 INFO L226 Difference]: Without dead ends: 2201 [2022-11-21 09:15:13,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 563 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:15:13,413 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 40 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:15:13,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 62 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:15:13,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2201 states. [2022-11-21 09:15:13,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2201 to 2201. [2022-11-21 09:15:13,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2201 states, 2199 states have (on average 1.055025011368804) internal successors, (2320), 2200 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:13,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 2320 transitions. [2022-11-21 09:15:13,670 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 2320 transitions. Word has length 283 [2022-11-21 09:15:13,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:15:13,671 INFO L495 AbstractCegarLoop]: Abstraction has 2201 states and 2320 transitions. [2022-11-21 09:15:13,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:13,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 2320 transitions. [2022-11-21 09:15:13,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1100 [2022-11-21 09:15:13,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:15:13,718 INFO L195 NwaCegarLoop]: trace histogram [288, 288, 288, 48, 48, 48, 48, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-21 09:15:13,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-21 09:15:13,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-21 09:15:13,925 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 09:15:13,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:15:13,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1830901770, now seen corresponding path program 2 times [2022-11-21 09:15:13,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:15:13,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872232572] [2022-11-21 09:15:13,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:13,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:15:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:15,328 INFO L134 CoverageAnalysis]: Checked inductivity of 142836 backedges. 0 proven. 71692 refuted. 0 times theorem prover too weak. 71144 trivial. 0 not checked. [2022-11-21 09:15:15,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:15:15,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872232572] [2022-11-21 09:15:15,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872232572] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:15:15,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126816201] [2022-11-21 09:15:15,329 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 09:15:15,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:15:15,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:15:15,331 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:15:15,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-21 09:15:15,764 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 09:15:15,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 09:15:15,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 1940 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 09:15:15,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:15:16,846 INFO L134 CoverageAnalysis]: Checked inductivity of 142836 backedges. 71690 proven. 26884 refuted. 0 times theorem prover too weak. 44262 trivial. 0 not checked. [2022-11-21 09:15:16,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:15:18,010 INFO L134 CoverageAnalysis]: Checked inductivity of 142836 backedges. 71690 proven. 26884 refuted. 0 times theorem prover too weak. 44262 trivial. 0 not checked. [2022-11-21 09:15:18,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126816201] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:15:18,011 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 09:15:18,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 10 [2022-11-21 09:15:18,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585640410] [2022-11-21 09:15:18,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 09:15:18,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 09:15:18,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:15:18,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 09:15:18,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:15:18,015 INFO L87 Difference]: Start difference. First operand 2201 states and 2320 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:18,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:15:18,542 INFO L93 Difference]: Finished difference Result 4940 states and 5214 transitions. [2022-11-21 09:15:18,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 09:15:18,543 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 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 1099 [2022-11-21 09:15:18,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:15:18,555 INFO L225 Difference]: With dead ends: 4940 [2022-11-21 09:15:18,555 INFO L226 Difference]: Without dead ends: 3288 [2022-11-21 09:15:18,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2211 GetRequests, 2187 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2022-11-21 09:15:18,558 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 124 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:15:18,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 142 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:15:18,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3288 states. [2022-11-21 09:15:18,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3288 to 1650. [2022-11-21 09:15:18,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1650 states, 1649 states have (on average 1.0539721043056398) internal successors, (1738), 1649 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:18,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1650 states to 1650 states and 1738 transitions. [2022-11-21 09:15:18,829 INFO L78 Accepts]: Start accepts. Automaton has 1650 states and 1738 transitions. Word has length 1099 [2022-11-21 09:15:18,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:15:18,830 INFO L495 AbstractCegarLoop]: Abstraction has 1650 states and 1738 transitions. [2022-11-21 09:15:18,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:18,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1650 states and 1738 transitions. [2022-11-21 09:15:18,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1650 [2022-11-21 09:15:18,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:15:18,909 INFO L195 NwaCegarLoop]: trace histogram [432, 432, 432, 72, 72, 72, 72, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-21 09:15:18,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-11-21 09:15:19,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-21 09:15:19,117 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 09:15:19,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:15:19,118 INFO L85 PathProgramCache]: Analyzing trace with hash 460418599, now seen corresponding path program 1 times [2022-11-21 09:15:19,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:15:19,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563710926] [2022-11-21 09:15:19,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:19,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:15:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:21,148 INFO L134 CoverageAnalysis]: Checked inductivity of 321779 backedges. 161300 proven. 1 refuted. 0 times theorem prover too weak. 160478 trivial. 0 not checked. [2022-11-21 09:15:21,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:15:21,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563710926] [2022-11-21 09:15:21,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563710926] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:15:21,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763445950] [2022-11-21 09:15:21,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:15:21,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:15:21,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:15:21,151 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:15:21,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-21 09:15:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:15:21,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 2896 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 09:15:21,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:15:23,283 INFO L134 CoverageAnalysis]: Checked inductivity of 321779 backedges. 161300 proven. 0 refuted. 0 times theorem prover too weak. 160479 trivial. 0 not checked. [2022-11-21 09:15:23,284 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:15:23,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763445950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:15:23,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:15:23,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-21 09:15:23,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031931694] [2022-11-21 09:15:23,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:15:23,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:15:23,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:15:23,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:15:23,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:15:23,288 INFO L87 Difference]: Start difference. First operand 1650 states and 1738 transitions. Second operand has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:23,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:15:23,585 INFO L93 Difference]: Finished difference Result 1650 states and 1738 transitions. [2022-11-21 09:15:23,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:15:23,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1649 [2022-11-21 09:15:23,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:15:23,589 INFO L225 Difference]: With dead ends: 1650 [2022-11-21 09:15:23,589 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 09:15:23,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1652 GetRequests, 1649 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:15:23,592 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:15:23,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 19 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:15:23,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 09:15:23,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 09:15:23,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:23,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 09:15:23,594 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1649 [2022-11-21 09:15:23,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:15:23,595 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 09:15:23,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:15:23,595 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 09:15:23,595 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 09:15:23,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-21 09:15:23,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-21 09:15:23,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-21 09:15:23,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-21 09:15:23,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-21 09:15:23,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-21 09:15:23,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-21 09:15:23,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-21 09:15:23,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-21 09:15:23,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-21 09:15:23,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-21 09:15:23,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-21 09:15:23,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 09:16:26,639 WARN L233 SmtUtils]: Spent 1.01m on a formula simplification. DAG size of input: 2736 DAG size of output: 2727 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-21 09:16:46,327 WARN L233 SmtUtils]: Spent 18.04s on a formula simplification. DAG size of input: 2727 DAG size of output: 60 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-21 09:16:46,331 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-11-21 09:16:46,332 INFO L899 garLoopResultBuilder]: For program point L27-2(lines 27 29) no Hoare annotation was computed. [2022-11-21 09:16:46,332 INFO L899 garLoopResultBuilder]: For program point L27-3(line 27) no Hoare annotation was computed. [2022-11-21 09:16:46,333 INFO L895 garLoopResultBuilder]: At program point L27-4(lines 27 29) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_main_~a~0#1| 6)) (.cse1 (< |ULTIMATE.start_main_~b~0#1| 6)) (.cse10 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse7 (<= 1 |ULTIMATE.start_main_~c~0#1|)) (.cse3 (< |ULTIMATE.start_main_~d~0#1| 6)) (.cse5 (<= 1 |ULTIMATE.start_main_~d~0#1|)) (.cse9 (< |ULTIMATE.start_main_~c~0#1| 6)) (.cse2 (= |ULTIMATE.start_main_~c~0#1| 0)) (.cse11 (= |ULTIMATE.start_main_~b~0#1| 0)) (.cse8 (= |ULTIMATE.start_main_~d~0#1| 0)) (.cse6 (<= 0 |ULTIMATE.start_main_~a~0#1|))) (or (and .cse0 (let ((.cse4 (<= 1 |ULTIMATE.start_main_~e~0#1|))) (or (and .cse1 (or (and .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 (or (and .cse4 .cse8 .cse6) (and .cse3 .cse4 .cse5 .cse6)) .cse9) (and .cse2 .cse4 .cse8 .cse6)) .cse10) (and (or (and .cse3 .cse11 .cse4 .cse5 .cse6) (and .cse11 .cse4 .cse8 .cse6)) .cse7 .cse9) (and .cse2 .cse11 .cse4 .cse8 .cse6) (and .cse2 .cse3 .cse11 .cse4 .cse5 .cse6)))) (and .cse0 (let ((.cse12 (= |ULTIMATE.start_main_~e~0#1| 0))) (or (and .cse2 .cse3 .cse11 .cse5 .cse6 .cse12) (and .cse1 .cse10 (or (and (or (and .cse8 .cse6 .cse12) (and .cse3 .cse5 .cse6 .cse12)) .cse7 .cse9) (and .cse2 .cse8 .cse6 .cse12) (and .cse2 .cse3 .cse5 .cse6 .cse12))) (and .cse7 (or (and .cse3 .cse11 .cse5 .cse6 .cse12) (and .cse11 .cse8 .cse6 .cse12)) .cse9) (and .cse2 .cse11 .cse8 .cse6 .cse12)))))) [2022-11-21 09:16:46,333 INFO L899 garLoopResultBuilder]: For program point L23-2(lines 23 33) no Hoare annotation was computed. [2022-11-21 09:16:46,333 INFO L899 garLoopResultBuilder]: For program point L23-3(line 23) no Hoare annotation was computed. [2022-11-21 09:16:46,333 INFO L895 garLoopResultBuilder]: At program point L23-4(lines 23 33) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= 1 |ULTIMATE.start_main_~e~0#1|) (<= 1 |ULTIMATE.start_main_~b~0#1|) (<= 1 |ULTIMATE.start_main_~d~0#1|) (<= 0 |ULTIMATE.start_main_~a~0#1|)) [2022-11-21 09:16:46,334 INFO L899 garLoopResultBuilder]: For program point L23-5(lines 15 38) no Hoare annotation was computed. [2022-11-21 09:16:46,334 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-21 09:16:46,334 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 09:16:46,334 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-21 09:16:46,334 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 09:16:46,335 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-21 09:16:46,335 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 09:16:46,335 INFO L899 garLoopResultBuilder]: For program point L24-2(lines 24 32) no Hoare annotation was computed. [2022-11-21 09:16:46,335 INFO L899 garLoopResultBuilder]: For program point L24-3(line 24) no Hoare annotation was computed. [2022-11-21 09:16:46,335 INFO L895 garLoopResultBuilder]: At program point L24-4(lines 24 32) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~c~0#1|)) (.cse1 (< |ULTIMATE.start_main_~a~0#1| 6)) (.cse2 (<= 1 |ULTIMATE.start_main_~e~0#1|)) (.cse3 (<= 1 |ULTIMATE.start_main_~d~0#1|)) (.cse4 (<= 0 |ULTIMATE.start_main_~a~0#1|))) (or (and .cse0 .cse1 .cse2 (<= 1 |ULTIMATE.start_main_~b~0#1|) .cse3 .cse4) (and (= |ULTIMATE.start_main_~b~0#1| 0) .cse0 .cse1 .cse2 .cse3 .cse4))) [2022-11-21 09:16:46,336 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-21 09:16:46,336 INFO L902 garLoopResultBuilder]: At program point L37(lines 15 38) the Hoare annotation is: true [2022-11-21 09:16:46,336 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-21 09:16:46,336 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 09:16:46,336 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-21 09:16:46,336 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 25 31) no Hoare annotation was computed. [2022-11-21 09:16:46,337 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2022-11-21 09:16:46,337 INFO L895 garLoopResultBuilder]: At program point L25-4(lines 25 31) the Hoare annotation is: (let ((.cse7 (< |ULTIMATE.start_main_~a~0#1| 6)) (.cse0 (= |ULTIMATE.start_main_~b~0#1| 0)) (.cse5 (< |ULTIMATE.start_main_~b~0#1| 6)) (.cse2 (<= 1 |ULTIMATE.start_main_~e~0#1|)) (.cse6 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse3 (<= 1 |ULTIMATE.start_main_~d~0#1|)) (.cse4 (<= 0 |ULTIMATE.start_main_~a~0#1|))) (or (and (let ((.cse1 (<= 1 |ULTIMATE.start_main_~c~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse6 .cse3 .cse4))) .cse7) (and .cse7 (let ((.cse8 (= |ULTIMATE.start_main_~c~0#1| 0))) (or (and .cse8 .cse0 .cse2 .cse3 .cse4) (and .cse8 .cse5 .cse2 .cse6 .cse3 .cse4)))))) [2022-11-21 09:16:46,337 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-21 09:16:46,337 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 34 36) no Hoare annotation was computed. [2022-11-21 09:16:46,337 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-11-21 09:16:46,338 INFO L899 garLoopResultBuilder]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2022-11-21 09:16:46,338 INFO L899 garLoopResultBuilder]: For program point L26-3(line 26) no Hoare annotation was computed. [2022-11-21 09:16:46,338 INFO L895 garLoopResultBuilder]: At program point L26-4(lines 26 30) the Hoare annotation is: (let ((.cse1 (< |ULTIMATE.start_main_~b~0#1| 6)) (.cse3 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse9 (<= 1 |ULTIMATE.start_main_~c~0#1|)) (.cse10 (< |ULTIMATE.start_main_~c~0#1| 6)) (.cse5 (= |ULTIMATE.start_main_~c~0#1| 0)) (.cse4 (= |ULTIMATE.start_main_~b~0#1| 0)) (.cse6 (<= 1 |ULTIMATE.start_main_~e~0#1|)) (.cse8 (<= 0 |ULTIMATE.start_main_~a~0#1|)) (.cse0 (< |ULTIMATE.start_main_~a~0#1| 6))) (or (and .cse0 (let ((.cse2 (let ((.cse7 (<= 1 |ULTIMATE.start_main_~d~0#1|))) (or (and .cse5 .cse6 .cse7 .cse8) (and .cse9 .cse6 .cse7 .cse8 .cse10))))) (or (and .cse1 .cse2 .cse3) (and .cse4 .cse2)))) (and (let ((.cse11 (= |ULTIMATE.start_main_~d~0#1| 0))) (or (and (or (and .cse9 .cse6 .cse11 .cse8 .cse10) (and .cse5 .cse6 .cse11 .cse8)) .cse1 .cse3) (and .cse4 .cse9 .cse6 .cse11 .cse8 .cse10) (and .cse5 .cse4 .cse6 .cse11 .cse8))) .cse0))) [2022-11-21 09:16:46,338 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-21 09:16:46,342 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:16:46,344 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 09:16:46,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:16:46 BoogieIcfgContainer [2022-11-21 09:16:46,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 09:16:46,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 09:16:46,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 09:16:46,369 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 09:16:46,370 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:15:03" (3/4) ... [2022-11-21 09:16:46,374 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 09:16:46,385 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-21 09:16:46,385 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 09:16:46,385 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 09:16:46,386 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 09:16:46,425 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 09:16:46,426 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 09:16:46,426 INFO L158 Benchmark]: Toolchain (without parser) took 103684.88ms. Allocated memory was 148.9MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 104.3MB in the beginning and 1.0GB in the end (delta: -924.6MB). Peak memory consumption was 129.1MB. Max. memory is 16.1GB. [2022-11-21 09:16:46,427 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 148.9MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:16:46,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.17ms. Allocated memory is still 148.9MB. Free memory was 104.2MB in the beginning and 93.9MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 09:16:46,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.70ms. Allocated memory is still 148.9MB. Free memory was 93.9MB in the beginning and 92.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:16:46,428 INFO L158 Benchmark]: Boogie Preprocessor took 26.41ms. Allocated memory is still 148.9MB. Free memory was 92.7MB in the beginning and 91.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:16:46,428 INFO L158 Benchmark]: RCFGBuilder took 381.31ms. Allocated memory is still 148.9MB. Free memory was 91.2MB in the beginning and 80.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 09:16:46,429 INFO L158 Benchmark]: TraceAbstraction took 102791.22ms. Allocated memory was 148.9MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 79.7MB in the beginning and 1.0GB in the end (delta: -952.4MB). Peak memory consumption was 787.9MB. Max. memory is 16.1GB. [2022-11-21 09:16:46,429 INFO L158 Benchmark]: Witness Printer took 56.75ms. Allocated memory is still 1.2GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 09:16:46,431 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 148.9MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.17ms. Allocated memory is still 148.9MB. Free memory was 104.2MB in the beginning and 93.9MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.70ms. Allocated memory is still 148.9MB. Free memory was 93.9MB in the beginning and 92.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.41ms. Allocated memory is still 148.9MB. Free memory was 92.7MB in the beginning and 91.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 381.31ms. Allocated memory is still 148.9MB. Free memory was 91.2MB in the beginning and 80.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 102791.22ms. Allocated memory was 148.9MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 79.7MB in the beginning and 1.0GB in the end (delta: -952.4MB). Peak memory consumption was 787.9MB. Max. memory is 16.1GB. * Witness Printer took 56.75ms. Allocated memory is still 1.2GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 102.7s, OverallIterations: 18, TraceHistogramMax: 432, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 82.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 433 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 433 mSDsluCounter, 987 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 557 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 385 IncrementalHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 430 mSDtfsCounter, 385 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5517 GetRequests, 5404 SyntacticMatches, 12 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2201occurred in iteration=16, InterpolantAutomatonStates: 103, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 18 MinimizatonAttempts, 2380 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 615 NumberOfFragments, 582 HoareAnnotationTreeSize, 6 FomulaSimplifications, 27045 FormulaSimplificationTreeSizeReduction, 62.8s HoareSimplificationTime, 6 FomulaSimplificationsInter, 113213 FormulaSimplificationTreeSizeReductionInter, 19.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 7554 NumberOfCodeBlocks, 7554 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 9199 ConstructedInterpolants, 0 QuantifiedInterpolants, 19557 SizeOfPredicates, 0 NumberOfNonLiveVariables, 6960 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 37 InterpolantComputations, 12 PerfectInterpolantSequences, 1000492/1129566 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (a < 6 && (((b < 6 && ((((c == 0 && 1 <= e) && 1 <= d) && 0 <= a) || ((((1 <= c && 1 <= e) && 1 <= d) && 0 <= a) && c < 6))) && 1 <= b) || (b == 0 && ((((c == 0 && 1 <= e) && 1 <= d) && 0 <= a) || ((((1 <= c && 1 <= e) && 1 <= d) && 0 <= a) && c < 6))))) || ((((((((((1 <= c && 1 <= e) && d == 0) && 0 <= a) && c < 6) || (((c == 0 && 1 <= e) && d == 0) && 0 <= a)) && b < 6) && 1 <= b) || (((((b == 0 && 1 <= c) && 1 <= e) && d == 0) && 0 <= a) && c < 6)) || ((((c == 0 && b == 0) && 1 <= e) && d == 0) && 0 <= a)) && a < 6) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ((((((b == 0 && 1 <= c) && 1 <= e) && 1 <= d) && 0 <= a) || (((((b < 6 && 1 <= c) && 1 <= e) && 1 <= b) && 1 <= d) && 0 <= a)) && a < 6) || (a < 6 && (((((c == 0 && b == 0) && 1 <= e) && 1 <= d) && 0 <= a) || (((((c == 0 && b < 6) && 1 <= e) && 1 <= b) && 1 <= d) && 0 <= a))) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((1 <= c && 1 <= e) && 1 <= b) && 1 <= d) && 0 <= a - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((((1 <= c && a < 6) && 1 <= e) && 1 <= b) && 1 <= d) && 0 <= a) || (((((b == 0 && 1 <= c) && a < 6) && 1 <= e) && 1 <= d) && 0 <= a) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (a < 6 && (((((b < 6 && ((((((c == 0 && d < 6) && 1 <= e) && 1 <= d) && 0 <= a) || ((1 <= c && (((1 <= e && d == 0) && 0 <= a) || (((d < 6 && 1 <= e) && 1 <= d) && 0 <= a))) && c < 6)) || (((c == 0 && 1 <= e) && d == 0) && 0 <= a))) && 1 <= b) || (((((((d < 6 && b == 0) && 1 <= e) && 1 <= d) && 0 <= a) || (((b == 0 && 1 <= e) && d == 0) && 0 <= a)) && 1 <= c) && c < 6)) || ((((c == 0 && b == 0) && 1 <= e) && d == 0) && 0 <= a)) || (((((c == 0 && d < 6) && b == 0) && 1 <= e) && 1 <= d) && 0 <= a))) || (a < 6 && ((((((((c == 0 && d < 6) && b == 0) && 1 <= d) && 0 <= a) && e == 0) || ((b < 6 && 1 <= b) && (((((((d == 0 && 0 <= a) && e == 0) || (((d < 6 && 1 <= d) && 0 <= a) && e == 0)) && 1 <= c) && c < 6) || (((c == 0 && d == 0) && 0 <= a) && e == 0)) || ((((c == 0 && d < 6) && 1 <= d) && 0 <= a) && e == 0)))) || ((1 <= c && (((((d < 6 && b == 0) && 1 <= d) && 0 <= a) && e == 0) || (((b == 0 && d == 0) && 0 <= a) && e == 0))) && c < 6)) || ((((c == 0 && b == 0) && d == 0) && 0 <= a) && e == 0))) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-21 09:16:46,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1277b212-8ddd-4439-aaf8-5ef64066c151/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE