./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bfd8ca9d9dda86f57445168715d124831c95b647e7c1b1093bb129b0384cce9e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:21:27,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:21:27,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:21:27,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:21:27,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:21:27,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:21:27,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:21:27,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:21:27,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:21:27,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:21:27,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:21:27,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:21:27,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:21:27,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:21:27,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:21:27,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:21:27,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:21:27,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:21:27,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:21:27,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:21:27,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:21:27,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:21:27,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:21:27,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:21:27,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:21:27,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:21:27,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:21:27,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:21:27,494 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:21:27,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:21:27,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:21:27,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:21:27,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:21:27,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:21:27,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:21:27,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:21:27,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:21:27,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:21:27,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:21:27,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:21:27,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:21:27,506 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:21:27,547 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:21:27,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:21:27,549 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:21:27,549 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:21:27,550 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:21:27,550 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:21:27,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:21:27,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:21:27,552 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:21:27,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:21:27,553 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:21:27,553 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:21:27,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:21:27,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:21:27,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:21:27,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:21:27,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:21:27,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:21:27,555 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:21:27,555 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:21:27,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:21:27,556 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:21:27,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:21:27,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:21:27,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:21:27,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:21:27,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:21:27,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:21:27,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:21:27,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:21:27,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:21:27,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:21:27,560 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:21:27,560 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:21:27,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:21:27,561 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_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfd8ca9d9dda86f57445168715d124831c95b647e7c1b1093bb129b0384cce9e [2022-11-18 20:21:27,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:21:27,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:21:27,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:21:27,895 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:21:27,896 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:21:27,898 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i [2022-11-18 20:21:27,983 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/data/0904de176/3bc043b100fe477bae10a5d09a2762a8/FLAGecbed132f [2022-11-18 20:21:28,625 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:21:28,626 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i [2022-11-18 20:21:28,645 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/data/0904de176/3bc043b100fe477bae10a5d09a2762a8/FLAGecbed132f [2022-11-18 20:21:28,883 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/data/0904de176/3bc043b100fe477bae10a5d09a2762a8 [2022-11-18 20:21:28,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:21:28,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:21:28,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:21:28,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:21:28,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:21:28,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:21:28" (1/1) ... [2022-11-18 20:21:28,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@555f9c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:28, skipping insertion in model container [2022-11-18 20:21:28,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:21:28" (1/1) ... [2022-11-18 20:21:28,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:21:28,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:21:29,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:21:29,420 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:21:29,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:21:29,519 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:21:29,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:29 WrapperNode [2022-11-18 20:21:29,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:21:29,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:21:29,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:21:29,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:21:29,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:29" (1/1) ... [2022-11-18 20:21:29,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:29" (1/1) ... [2022-11-18 20:21:29,564 INFO L138 Inliner]: procedures = 117, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 108 [2022-11-18 20:21:29,564 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:21:29,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:21:29,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:21:29,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:21:29,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:29" (1/1) ... [2022-11-18 20:21:29,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:29" (1/1) ... [2022-11-18 20:21:29,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:29" (1/1) ... [2022-11-18 20:21:29,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:29" (1/1) ... [2022-11-18 20:21:29,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:29" (1/1) ... [2022-11-18 20:21:29,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:29" (1/1) ... [2022-11-18 20:21:29,590 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:29" (1/1) ... [2022-11-18 20:21:29,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:29" (1/1) ... [2022-11-18 20:21:29,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:21:29,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:21:29,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:21:29,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:21:29,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:29" (1/1) ... [2022-11-18 20:21:29,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:21:29,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:29,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:29,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:21:29,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:21:29,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:21:29,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:21:29,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:21:29,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:21:29,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:21:29,799 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:21:29,801 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:21:30,122 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:21:30,129 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:21:30,129 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 20:21:30,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:21:30 BoogieIcfgContainer [2022-11-18 20:21:30,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:21:30,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:21:30,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:21:30,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:21:30,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:21:28" (1/3) ... [2022-11-18 20:21:30,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3e771e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:21:30, skipping insertion in model container [2022-11-18 20:21:30,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:29" (2/3) ... [2022-11-18 20:21:30,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3e771e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:21:30, skipping insertion in model container [2022-11-18 20:21:30,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:21:30" (3/3) ... [2022-11-18 20:21:30,165 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrcat-alloca-2.i [2022-11-18 20:21:30,185 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:21:30,185 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-18 20:21:30,238 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:21:30,245 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;@3a4ea023, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:21:30,245 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-18 20:21:30,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 47 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:30,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 20:21:30,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:30,257 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:21:30,258 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:21:30,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:30,264 INFO L85 PathProgramCache]: Analyzing trace with hash 889510797, now seen corresponding path program 1 times [2022-11-18 20:21:30,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:30,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826067250] [2022-11-18 20:21:30,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:30,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:30,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:30,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:30,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826067250] [2022-11-18 20:21:30,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826067250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:30,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:30,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:21:30,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326196967] [2022-11-18 20:21:30,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:30,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:21:30,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:30,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:21:30,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:21:30,630 INFO L87 Difference]: Start difference. First operand has 48 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 47 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:30,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:30,774 INFO L93 Difference]: Finished difference Result 119 states and 145 transitions. [2022-11-18 20:21:30,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:21:30,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-18 20:21:30,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:30,786 INFO L225 Difference]: With dead ends: 119 [2022-11-18 20:21:30,786 INFO L226 Difference]: Without dead ends: 72 [2022-11-18 20:21:30,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:21:30,793 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 92 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:30,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 115 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:21:30,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-18 20:21:30,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 56. [2022-11-18 20:21:30,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 55 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:30,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 71 transitions. [2022-11-18 20:21:30,854 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 71 transitions. Word has length 6 [2022-11-18 20:21:30,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:30,855 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 71 transitions. [2022-11-18 20:21:30,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:30,855 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 71 transitions. [2022-11-18 20:21:30,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 20:21:30,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:30,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:21:30,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:21:30,857 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:21:30,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:30,858 INFO L85 PathProgramCache]: Analyzing trace with hash 889512719, now seen corresponding path program 1 times [2022-11-18 20:21:30,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:30,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793790209] [2022-11-18 20:21:30,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:30,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:30,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:30,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:30,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793790209] [2022-11-18 20:21:30,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793790209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:30,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:30,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:21:30,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945977037] [2022-11-18 20:21:30,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:30,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:21:30,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:30,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:21:30,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:21:30,971 INFO L87 Difference]: Start difference. First operand 56 states and 71 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:31,048 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2022-11-18 20:21:31,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:21:31,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-18 20:21:31,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:31,050 INFO L225 Difference]: With dead ends: 56 [2022-11-18 20:21:31,050 INFO L226 Difference]: Without dead ends: 54 [2022-11-18 20:21:31,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:21:31,055 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 69 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:31,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 31 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:21:31,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-18 20:21:31,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 37. [2022-11-18 20:21:31,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.64) internal successors, (41), 36 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2022-11-18 20:21:31,072 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 6 [2022-11-18 20:21:31,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:31,073 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-11-18 20:21:31,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,074 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2022-11-18 20:21:31,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 20:21:31,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:31,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:31,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:21:31,078 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:21:31,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:31,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1805030985, now seen corresponding path program 1 times [2022-11-18 20:21:31,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:31,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477256020] [2022-11-18 20:21:31,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:31,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:31,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:31,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:31,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:31,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477256020] [2022-11-18 20:21:31,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477256020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:31,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:31,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:21:31,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545149443] [2022-11-18 20:21:31,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:31,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:21:31,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:31,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:21:31,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:21:31,158 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:31,218 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2022-11-18 20:21:31,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:21:31,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-18 20:21:31,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:31,220 INFO L225 Difference]: With dead ends: 67 [2022-11-18 20:21:31,220 INFO L226 Difference]: Without dead ends: 65 [2022-11-18 20:21:31,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:21:31,222 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 95 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:31,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 56 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:31,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-18 20:21:31,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 38. [2022-11-18 20:21:31,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.5555555555555556) internal successors, (42), 37 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) [2022-11-18 20:21:31,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-11-18 20:21:31,230 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 7 [2022-11-18 20:21:31,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:31,230 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-11-18 20:21:31,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,231 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-11-18 20:21:31,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 20:21:31,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:31,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:31,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:21:31,232 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:21:31,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:31,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1805032907, now seen corresponding path program 1 times [2022-11-18 20:21:31,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:31,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521083588] [2022-11-18 20:21:31,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:31,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:31,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:31,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:31,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521083588] [2022-11-18 20:21:31,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521083588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:31,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:31,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:21:31,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012629909] [2022-11-18 20:21:31,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:31,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:21:31,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:31,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:21:31,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:21:31,286 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:31,334 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2022-11-18 20:21:31,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:21:31,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-18 20:21:31,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:31,336 INFO L225 Difference]: With dead ends: 39 [2022-11-18 20:21:31,338 INFO L226 Difference]: Without dead ends: 37 [2022-11-18 20:21:31,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:21:31,340 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 62 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:31,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 31 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:31,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-18 20:21:31,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2022-11-18 20:21:31,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 25 states have (on average 1.52) internal successors, (38), 33 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2022-11-18 20:21:31,357 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 7 [2022-11-18 20:21:31,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:31,358 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2022-11-18 20:21:31,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,358 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2022-11-18 20:21:31,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:21:31,360 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:31,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:31,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:21:31,361 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:21:31,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:31,363 INFO L85 PathProgramCache]: Analyzing trace with hash -532009106, now seen corresponding path program 1 times [2022-11-18 20:21:31,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:31,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585147958] [2022-11-18 20:21:31,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:31,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:31,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:31,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:31,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585147958] [2022-11-18 20:21:31,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585147958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:31,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:31,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:21:31,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221846018] [2022-11-18 20:21:31,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:31,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:21:31,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:31,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:21:31,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:21:31,495 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand has 3 states, 2 states have (on average 4.5) 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) [2022-11-18 20:21:31,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:31,562 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2022-11-18 20:21:31,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:21:31,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) 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 [2022-11-18 20:21:31,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:31,564 INFO L225 Difference]: With dead ends: 63 [2022-11-18 20:21:31,564 INFO L226 Difference]: Without dead ends: 61 [2022-11-18 20:21:31,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:21:31,566 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 27 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:31,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 53 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:31,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-18 20:21:31,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 53. [2022-11-18 20:21:31,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 44 states have (on average 1.5) internal successors, (66), 52 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 66 transitions. [2022-11-18 20:21:31,593 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 66 transitions. Word has length 9 [2022-11-18 20:21:31,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:31,594 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 66 transitions. [2022-11-18 20:21:31,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) 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) [2022-11-18 20:21:31,594 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2022-11-18 20:21:31,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:21:31,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:31,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:31,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:21:31,596 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:21:31,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:31,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1242998256, now seen corresponding path program 1 times [2022-11-18 20:21:31,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:31,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490263022] [2022-11-18 20:21:31,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:31,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:31,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:31,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:31,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490263022] [2022-11-18 20:21:31,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490263022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:31,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:31,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:21:31,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101808738] [2022-11-18 20:21:31,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:31,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:21:31,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:31,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:21:31,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:21:31,658 INFO L87 Difference]: Start difference. First operand 53 states and 66 transitions. Second operand has 3 states, 2 states have (on average 4.5) 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) [2022-11-18 20:21:31,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:31,694 INFO L93 Difference]: Finished difference Result 53 states and 66 transitions. [2022-11-18 20:21:31,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:21:31,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) 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 [2022-11-18 20:21:31,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:31,697 INFO L225 Difference]: With dead ends: 53 [2022-11-18 20:21:31,697 INFO L226 Difference]: Without dead ends: 51 [2022-11-18 20:21:31,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:21:31,699 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 27 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 26 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 [2022-11-18 20:21:31,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 26 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:31,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-18 20:21:31,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 32. [2022-11-18 20:21:31,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 25 states have (on average 1.44) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2022-11-18 20:21:31,705 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 9 [2022-11-18 20:21:31,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:31,705 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2022-11-18 20:21:31,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) 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) [2022-11-18 20:21:31,706 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2022-11-18 20:21:31,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 20:21:31,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:31,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:31,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:21:31,707 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:21:31,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:31,707 INFO L85 PathProgramCache]: Analyzing trace with hash 687586964, now seen corresponding path program 1 times [2022-11-18 20:21:31,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:31,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113407512] [2022-11-18 20:21:31,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:31,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:31,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:31,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:31,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113407512] [2022-11-18 20:21:31,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113407512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:31,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:31,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:21:31,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372243732] [2022-11-18 20:21:31,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:31,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:21:31,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:31,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:21:31,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:21:31,789 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:31,808 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2022-11-18 20:21:31,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:21:31,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-18 20:21:31,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:31,810 INFO L225 Difference]: With dead ends: 32 [2022-11-18 20:21:31,810 INFO L226 Difference]: Without dead ends: 30 [2022-11-18 20:21:31,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:21:31,811 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 24 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:31,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 28 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:31,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-18 20:21:31,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-18 20:21:31,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.36) internal successors, (34), 29 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2022-11-18 20:21:31,817 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 10 [2022-11-18 20:21:31,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:31,818 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2022-11-18 20:21:31,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,818 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-11-18 20:21:31,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 20:21:31,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:31,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:31,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:21:31,820 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:21:31,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:31,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1204280469, now seen corresponding path program 1 times [2022-11-18 20:21:31,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:31,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364100620] [2022-11-18 20:21:31,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:31,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:31,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:31,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:31,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364100620] [2022-11-18 20:21:31,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364100620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:31,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:31,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:21:31,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941717146] [2022-11-18 20:21:31,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:31,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:21:31,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:31,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:21:31,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:21:31,907 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:31,935 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2022-11-18 20:21:31,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:21:31,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-18 20:21:31,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:31,936 INFO L225 Difference]: With dead ends: 74 [2022-11-18 20:21:31,936 INFO L226 Difference]: Without dead ends: 52 [2022-11-18 20:21:31,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:21:31,938 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 35 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:31,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 58 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:31,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-18 20:21:31,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 38. [2022-11-18 20:21:31,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 37 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2022-11-18 20:21:31,946 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 13 [2022-11-18 20:21:31,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:31,946 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2022-11-18 20:21:31,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,947 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2022-11-18 20:21:31,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 20:21:31,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:31,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:31,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:21:31,948 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:21:31,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:31,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1905345047, now seen corresponding path program 1 times [2022-11-18 20:21:31,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:31,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594709173] [2022-11-18 20:21:31,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:31,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:32,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:32,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:32,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594709173] [2022-11-18 20:21:32,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594709173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:32,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:32,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:21:32,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799721146] [2022-11-18 20:21:32,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:32,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:21:32,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:32,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:21:32,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:21:32,023 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:32,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:32,055 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2022-11-18 20:21:32,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:21:32,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-18 20:21:32,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:32,057 INFO L225 Difference]: With dead ends: 60 [2022-11-18 20:21:32,057 INFO L226 Difference]: Without dead ends: 58 [2022-11-18 20:21:32,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:21:32,058 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 18 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:32,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 83 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:32,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-18 20:21:32,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 44. [2022-11-18 20:21:32,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 43 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:32,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2022-11-18 20:21:32,067 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 13 [2022-11-18 20:21:32,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:32,067 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2022-11-18 20:21:32,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:32,068 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2022-11-18 20:21:32,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 20:21:32,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:32,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:32,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:21:32,069 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:21:32,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:32,070 INFO L85 PathProgramCache]: Analyzing trace with hash -716421955, now seen corresponding path program 1 times [2022-11-18 20:21:32,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:32,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904606396] [2022-11-18 20:21:32,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:32,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:32,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:32,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:32,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904606396] [2022-11-18 20:21:32,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904606396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:32,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:32,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:21:32,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279107182] [2022-11-18 20:21:32,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:32,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:21:32,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:32,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:21:32,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:21:32,134 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:32,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:32,166 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2022-11-18 20:21:32,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:21:32,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-18 20:21:32,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:32,167 INFO L225 Difference]: With dead ends: 57 [2022-11-18 20:21:32,167 INFO L226 Difference]: Without dead ends: 55 [2022-11-18 20:21:32,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:21:32,169 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 8 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:32,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 83 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:32,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-18 20:21:32,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2022-11-18 20:21:32,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 45 states have (on average 1.288888888888889) internal successors, (58), 49 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:32,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2022-11-18 20:21:32,178 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 17 [2022-11-18 20:21:32,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:32,178 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2022-11-18 20:21:32,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:32,179 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2022-11-18 20:21:32,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 20:21:32,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:32,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:32,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:21:32,180 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:21:32,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:32,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1288298211, now seen corresponding path program 1 times [2022-11-18 20:21:32,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:32,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342147476] [2022-11-18 20:21:32,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:32,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:32,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:32,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:32,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342147476] [2022-11-18 20:21:32,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342147476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:32,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:32,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:21:32,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290678992] [2022-11-18 20:21:32,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:32,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:21:32,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:32,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:21:32,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:21:32,254 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:32,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:32,285 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2022-11-18 20:21:32,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:21:32,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-18 20:21:32,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:32,287 INFO L225 Difference]: With dead ends: 55 [2022-11-18 20:21:32,287 INFO L226 Difference]: Without dead ends: 50 [2022-11-18 20:21:32,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:21:32,288 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 27 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:32,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 50 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:32,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-18 20:21:32,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-18 20:21:32,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 49 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) [2022-11-18 20:21:32,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2022-11-18 20:21:32,297 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 19 [2022-11-18 20:21:32,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:32,297 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2022-11-18 20:21:32,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:32,298 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2022-11-18 20:21:32,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 20:21:32,299 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:32,299 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:32,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:21:32,299 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:21:32,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:32,300 INFO L85 PathProgramCache]: Analyzing trace with hash -472829679, now seen corresponding path program 1 times [2022-11-18 20:21:32,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:32,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443069830] [2022-11-18 20:21:32,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:32,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:32,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:32,382 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:21:32,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:32,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443069830] [2022-11-18 20:21:32,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443069830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:32,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:32,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:21:32,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032656734] [2022-11-18 20:21:32,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:32,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:21:32,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:32,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:21:32,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:21:32,385 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2022-11-18 20:21:32,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:32,480 INFO L93 Difference]: Finished difference Result 115 states and 126 transitions. [2022-11-18 20:21:32,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:21:32,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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 19 [2022-11-18 20:21:32,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:32,482 INFO L225 Difference]: With dead ends: 115 [2022-11-18 20:21:32,482 INFO L226 Difference]: Without dead ends: 84 [2022-11-18 20:21:32,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:21:32,483 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 55 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:32,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 84 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:21:32,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-18 20:21:32,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 50. [2022-11-18 20:21:32,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 49 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) [2022-11-18 20:21:32,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2022-11-18 20:21:32,492 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 19 [2022-11-18 20:21:32,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:32,492 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2022-11-18 20:21:32,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2022-11-18 20:21:32,493 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2022-11-18 20:21:32,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 20:21:32,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:32,494 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:32,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:21:32,494 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:21:32,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:32,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1493898033, now seen corresponding path program 1 times [2022-11-18 20:21:32,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:32,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193127642] [2022-11-18 20:21:32,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:32,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:32,631 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:32,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:32,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193127642] [2022-11-18 20:21:32,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193127642] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:32,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815407773] [2022-11-18 20:21:32,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:32,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:32,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:32,639 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:32,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:21:32,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:32,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:21:32,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:32,848 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:32,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:21:32,942 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:32,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815407773] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:21:32,943 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:21:32,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-18 20:21:32,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565999302] [2022-11-18 20:21:32,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:21:32,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:21:32,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:32,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:21:32,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:21:32,945 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:33,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:33,135 INFO L93 Difference]: Finished difference Result 152 states and 164 transitions. [2022-11-18 20:21:33,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:21:33,135 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-18 20:21:33,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:33,138 INFO L225 Difference]: With dead ends: 152 [2022-11-18 20:21:33,138 INFO L226 Difference]: Without dead ends: 151 [2022-11-18 20:21:33,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:21:33,143 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 94 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:33,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 191 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:21:33,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-18 20:21:33,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 67. [2022-11-18 20:21:33,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 62 states have (on average 1.2741935483870968) internal successors, (79), 66 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:33,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 79 transitions. [2022-11-18 20:21:33,166 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 79 transitions. Word has length 19 [2022-11-18 20:21:33,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:33,166 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 79 transitions. [2022-11-18 20:21:33,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:33,167 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 79 transitions. [2022-11-18 20:21:33,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-18 20:21:33,171 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:33,171 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:33,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 20:21:33,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 20:21:33,377 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:21:33,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:33,377 INFO L85 PathProgramCache]: Analyzing trace with hash 933801310, now seen corresponding path program 1 times [2022-11-18 20:21:33,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:33,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547807084] [2022-11-18 20:21:33,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:33,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:33,477 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:33,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:33,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547807084] [2022-11-18 20:21:33,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547807084] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:33,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754109125] [2022-11-18 20:21:33,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:33,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:33,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:33,480 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:33,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:21:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:33,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:21:33,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:33,634 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:33,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:21:33,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754109125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:33,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:21:33,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 20:21:33,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982145626] [2022-11-18 20:21:33,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:33,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:21:33,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:33,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:21:33,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:21:33,637 INFO L87 Difference]: Start difference. First operand 67 states and 79 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:33,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:33,716 INFO L93 Difference]: Finished difference Result 87 states and 99 transitions. [2022-11-18 20:21:33,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:21:33,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-18 20:21:33,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:33,718 INFO L225 Difference]: With dead ends: 87 [2022-11-18 20:21:33,718 INFO L226 Difference]: Without dead ends: 86 [2022-11-18 20:21:33,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:21:33,719 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 37 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:33,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 152 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:33,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-18 20:21:33,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 66. [2022-11-18 20:21:33,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 62 states have (on average 1.2258064516129032) internal successors, (76), 65 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:33,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2022-11-18 20:21:33,728 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 76 transitions. Word has length 20 [2022-11-18 20:21:33,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:33,728 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 76 transitions. [2022-11-18 20:21:33,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:33,728 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 76 transitions. [2022-11-18 20:21:33,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 20:21:33,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:33,729 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:33,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:33,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-18 20:21:33,934 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:21:33,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:33,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1881663625, now seen corresponding path program 1 times [2022-11-18 20:21:33,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:33,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447657649] [2022-11-18 20:21:33,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:33,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:34,044 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:34,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:34,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447657649] [2022-11-18 20:21:34,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447657649] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:34,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759956423] [2022-11-18 20:21:34,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:34,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:34,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:34,047 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:34,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:21:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:34,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:21:34,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:34,268 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:34,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:21:34,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759956423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:34,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:21:34,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-11-18 20:21:34,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80415122] [2022-11-18 20:21:34,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:34,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:21:34,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:34,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:21:34,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:21:34,272 INFO L87 Difference]: Start difference. First operand 66 states and 76 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:34,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:34,332 INFO L93 Difference]: Finished difference Result 101 states and 112 transitions. [2022-11-18 20:21:34,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:21:34,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-18 20:21:34,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:34,334 INFO L225 Difference]: With dead ends: 101 [2022-11-18 20:21:34,334 INFO L226 Difference]: Without dead ends: 88 [2022-11-18 20:21:34,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:21:34,338 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 17 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:34,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 76 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:34,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-18 20:21:34,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 83. [2022-11-18 20:21:34,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 79 states have (on average 1.1898734177215189) internal successors, (94), 82 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:34,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 94 transitions. [2022-11-18 20:21:34,352 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 94 transitions. Word has length 23 [2022-11-18 20:21:34,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:34,352 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 94 transitions. [2022-11-18 20:21:34,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:34,353 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 94 transitions. [2022-11-18 20:21:34,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 20:21:34,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:34,357 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:34,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:34,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-18 20:21:34,563 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:21:34,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:34,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1595655221, now seen corresponding path program 1 times [2022-11-18 20:21:34,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:34,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977314908] [2022-11-18 20:21:34,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:34,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:34,650 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:34,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:34,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977314908] [2022-11-18 20:21:34,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977314908] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:34,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370224482] [2022-11-18 20:21:34,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:34,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:34,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:34,653 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:34,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:21:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:34,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:21:34,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:34,781 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:34,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:21:34,840 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:34,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370224482] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:21:34,841 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:21:34,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-18 20:21:34,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298827658] [2022-11-18 20:21:34,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:21:34,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:21:34,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:34,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:21:34,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:21:34,845 INFO L87 Difference]: Start difference. First operand 83 states and 94 transitions. Second operand has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 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) [2022-11-18 20:21:34,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:34,972 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2022-11-18 20:21:34,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:21:34,972 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 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 23 [2022-11-18 20:21:34,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:34,975 INFO L225 Difference]: With dead ends: 120 [2022-11-18 20:21:34,975 INFO L226 Difference]: Without dead ends: 119 [2022-11-18 20:21:34,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:21:34,976 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 46 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:34,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 121 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:34,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-18 20:21:34,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 100. [2022-11-18 20:21:34,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 96 states have (on average 1.2083333333333333) internal successors, (116), 99 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:34,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 116 transitions. [2022-11-18 20:21:34,993 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 116 transitions. Word has length 23 [2022-11-18 20:21:34,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:34,993 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 116 transitions. [2022-11-18 20:21:34,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 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) [2022-11-18 20:21:34,994 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 116 transitions. [2022-11-18 20:21:34,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 20:21:34,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:34,995 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:35,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:35,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:35,200 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:21:35,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:35,201 INFO L85 PathProgramCache]: Analyzing trace with hash -2074295602, now seen corresponding path program 1 times [2022-11-18 20:21:35,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:35,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940445841] [2022-11-18 20:21:35,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:35,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:35,297 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:35,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:35,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940445841] [2022-11-18 20:21:35,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940445841] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:35,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182375887] [2022-11-18 20:21:35,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:35,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:35,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:35,300 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:35,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:21:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:35,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:21:35,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:35,414 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:35,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:21:35,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182375887] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:35,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:21:35,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 20:21:35,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821523273] [2022-11-18 20:21:35,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:35,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:21:35,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:35,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:21:35,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:21:35,416 INFO L87 Difference]: Start difference. First operand 100 states and 116 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:35,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:35,478 INFO L93 Difference]: Finished difference Result 100 states and 116 transitions. [2022-11-18 20:21:35,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:21:35,478 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-18 20:21:35,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:35,479 INFO L225 Difference]: With dead ends: 100 [2022-11-18 20:21:35,479 INFO L226 Difference]: Without dead ends: 99 [2022-11-18 20:21:35,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:21:35,480 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 11 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:35,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 120 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:35,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-18 20:21:35,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2022-11-18 20:21:35,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 96 states have (on average 1.1770833333333333) internal successors, (113), 98 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:35,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 113 transitions. [2022-11-18 20:21:35,491 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 113 transitions. Word has length 24 [2022-11-18 20:21:35,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:35,491 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 113 transitions. [2022-11-18 20:21:35,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:35,492 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 113 transitions. [2022-11-18 20:21:35,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 20:21:35,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:35,492 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:35,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:35,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 20:21:35,698 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:21:35,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:35,699 INFO L85 PathProgramCache]: Analyzing trace with hash -99078825, now seen corresponding path program 1 times [2022-11-18 20:21:35,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:35,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091921556] [2022-11-18 20:21:35,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:35,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:35,750 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:21:35,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:35,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091921556] [2022-11-18 20:21:35,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091921556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:35,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:35,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:21:35,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501309138] [2022-11-18 20:21:35,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:35,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:21:35,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:35,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:21:35,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:21:35,753 INFO L87 Difference]: Start difference. First operand 99 states and 113 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:35,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:35,768 INFO L93 Difference]: Finished difference Result 99 states and 113 transitions. [2022-11-18 20:21:35,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:21:35,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-18 20:21:35,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:35,771 INFO L225 Difference]: With dead ends: 99 [2022-11-18 20:21:35,771 INFO L226 Difference]: Without dead ends: 77 [2022-11-18 20:21:35,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:21:35,772 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:35,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 32 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:35,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-18 20:21:35,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-11-18 20:21:35,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 75 states have (on average 1.1333333333333333) internal successors, (85), 76 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:35,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2022-11-18 20:21:35,781 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 25 [2022-11-18 20:21:35,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:35,782 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2022-11-18 20:21:35,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:35,782 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2022-11-18 20:21:35,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-18 20:21:35,783 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:35,783 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:35,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 20:21:35,783 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:21:35,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:35,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1602277059, now seen corresponding path program 2 times [2022-11-18 20:21:35,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:35,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847672141] [2022-11-18 20:21:35,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:35,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:36,009 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:36,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:36,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847672141] [2022-11-18 20:21:36,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847672141] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:36,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034555790] [2022-11-18 20:21:36,010 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:21:36,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:36,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:36,012 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:36,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:21:36,088 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:21:36,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:21:36,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:21:36,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:36,176 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-18 20:21:36,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:21:36,268 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-18 20:21:36,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034555790] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:21:36,268 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:21:36,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-11-18 20:21:36,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183535861] [2022-11-18 20:21:36,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:21:36,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:21:36,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:36,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:21:36,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:21:36,270 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand has 18 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 18 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:36,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:36,553 INFO L93 Difference]: Finished difference Result 273 states and 284 transitions. [2022-11-18 20:21:36,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 20:21:36,554 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 18 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-11-18 20:21:36,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:36,555 INFO L225 Difference]: With dead ends: 273 [2022-11-18 20:21:36,555 INFO L226 Difference]: Without dead ends: 272 [2022-11-18 20:21:36,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-11-18 20:21:36,556 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 247 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:36,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 119 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:21:36,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-11-18 20:21:36,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 53. [2022-11-18 20:21:36,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.0961538461538463) internal successors, (57), 52 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) [2022-11-18 20:21:36,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2022-11-18 20:21:36,565 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 37 [2022-11-18 20:21:36,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:36,566 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2022-11-18 20:21:36,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 18 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:36,566 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2022-11-18 20:21:36,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-18 20:21:36,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:36,567 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:36,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:36,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:36,772 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:21:36,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:36,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1929079837, now seen corresponding path program 2 times [2022-11-18 20:21:36,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:36,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754069755] [2022-11-18 20:21:36,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:36,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:36,953 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:36,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:36,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754069755] [2022-11-18 20:21:36,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754069755] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:36,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632093402] [2022-11-18 20:21:36,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:21:36,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:36,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:36,955 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:36,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 20:21:37,033 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:21:37,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:21:37,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:21:37,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:37,119 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-18 20:21:37,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:21:37,216 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-18 20:21:37,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632093402] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:21:37,217 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:21:37,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-11-18 20:21:37,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438834470] [2022-11-18 20:21:37,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:21:37,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:21:37,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:37,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:21:37,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:21:37,220 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 18 states, 17 states have (on average 4.764705882352941) internal successors, (81), 18 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:37,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:37,447 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2022-11-18 20:21:37,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 20:21:37,448 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.764705882352941) internal successors, (81), 18 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-11-18 20:21:37,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:37,448 INFO L225 Difference]: With dead ends: 63 [2022-11-18 20:21:37,448 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:21:37,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-11-18 20:21:37,450 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 65 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:37,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 64 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:21:37,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:21:37,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:21:37,451 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) [2022-11-18 20:21:37,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:21:37,451 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2022-11-18 20:21:37,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:37,451 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:21:37,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.764705882352941) internal successors, (81), 18 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:37,452 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:21:37,452 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:21:37,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2022-11-18 20:21:37,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2022-11-18 20:21:37,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2022-11-18 20:21:37,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2022-11-18 20:21:37,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2022-11-18 20:21:37,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2022-11-18 20:21:37,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2022-11-18 20:21:37,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2022-11-18 20:21:37,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2022-11-18 20:21:37,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2022-11-18 20:21:37,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2022-11-18 20:21:37,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2022-11-18 20:21:37,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2022-11-18 20:21:37,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2022-11-18 20:21:37,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-18 20:21:37,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:37,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:22:09,997 WARN L233 SmtUtils]: Spent 32.15s on a formula simplification. DAG size of input: 134 DAG size of output: 133 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:22:10,580 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 540) no Hoare annotation was computed. [2022-11-18 20:22:10,580 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 545) no Hoare annotation was computed. [2022-11-18 20:22:10,580 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 536) no Hoare annotation was computed. [2022-11-18 20:22:10,580 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 20:22:10,581 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 20:22:10,581 INFO L899 garLoopResultBuilder]: For program point L540-1(line 540) no Hoare annotation was computed. [2022-11-18 20:22:10,581 INFO L899 garLoopResultBuilder]: For program point L540-2(lines 540 543) no Hoare annotation was computed. [2022-11-18 20:22:10,581 INFO L899 garLoopResultBuilder]: For program point L540-4(lines 540 543) no Hoare annotation was computed. [2022-11-18 20:22:10,581 INFO L899 garLoopResultBuilder]: For program point L540-5(line 540) no Hoare annotation was computed. [2022-11-18 20:22:10,581 INFO L899 garLoopResultBuilder]: For program point L540-6(line 540) no Hoare annotation was computed. [2022-11-18 20:22:10,582 INFO L895 garLoopResultBuilder]: At program point L540-7(lines 540 543) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~length3~0#1| 2147483647)) (.cse1 (<= 1 |ULTIMATE.start_main_~length1~0#1|)) (.cse2 (<= |ULTIMATE.start_main_~length1~0#1| 2147483647)) (.cse3 (<= |ULTIMATE.start_main_~length2~0#1| (+ |ULTIMATE.start_main_~length3~0#1| 2147483646))) (.cse4 (<= 2 |ULTIMATE.start_main_~length2~0#1|)) (.cse5 (<= 1 |ULTIMATE.start_main_~length3~0#1|)) (.cse6 (<= |ULTIMATE.start_main_~length2~0#1| 2147483647))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse0 (< |ULTIMATE.start_main_~i~0#1| 2147483647) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6))) [2022-11-18 20:22:10,582 INFO L899 garLoopResultBuilder]: For program point L540-8(lines 540 543) no Hoare annotation was computed. [2022-11-18 20:22:10,582 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 545) no Hoare annotation was computed. [2022-11-18 20:22:10,582 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 536) no Hoare annotation was computed. [2022-11-18 20:22:10,582 INFO L899 garLoopResultBuilder]: For program point L533-1(lines 533 535) no Hoare annotation was computed. [2022-11-18 20:22:10,582 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 545) no Hoare annotation was computed. [2022-11-18 20:22:10,582 INFO L899 garLoopResultBuilder]: For program point L550(line 550) no Hoare annotation was computed. [2022-11-18 20:22:10,582 INFO L899 garLoopResultBuilder]: For program point L517-1(lines 517 518) no Hoare annotation was computed. [2022-11-18 20:22:10,583 INFO L902 garLoopResultBuilder]: At program point L517-3(lines 517 518) the Hoare annotation is: true [2022-11-18 20:22:10,583 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 550) no Hoare annotation was computed. [2022-11-18 20:22:10,583 INFO L899 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2022-11-18 20:22:10,583 INFO L899 garLoopResultBuilder]: For program point L551-1(line 551) no Hoare annotation was computed. [2022-11-18 20:22:10,583 INFO L899 garLoopResultBuilder]: For program point L527(lines 527 529) no Hoare annotation was computed. [2022-11-18 20:22:10,583 INFO L899 garLoopResultBuilder]: For program point L527-2(lines 523 554) no Hoare annotation was computed. [2022-11-18 20:22:10,583 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 550) no Hoare annotation was computed. [2022-11-18 20:22:10,583 INFO L899 garLoopResultBuilder]: For program point L519(lines 519 520) no Hoare annotation was computed. [2022-11-18 20:22:10,583 INFO L902 garLoopResultBuilder]: At program point L519-2(lines 515 522) the Hoare annotation is: true [2022-11-18 20:22:10,583 INFO L899 garLoopResultBuilder]: For program point L519-3(lines 519 520) no Hoare annotation was computed. [2022-11-18 20:22:10,583 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 20:22:10,584 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 540) no Hoare annotation was computed. [2022-11-18 20:22:10,584 INFO L899 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2022-11-18 20:22:10,584 INFO L899 garLoopResultBuilder]: For program point L536-1(line 536) no Hoare annotation was computed. [2022-11-18 20:22:10,584 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 551) no Hoare annotation was computed. [2022-11-18 20:22:10,584 INFO L902 garLoopResultBuilder]: At program point L553(lines 523 554) the Hoare annotation is: true [2022-11-18 20:22:10,584 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 20:22:10,584 INFO L899 garLoopResultBuilder]: For program point L545-1(line 545) no Hoare annotation was computed. [2022-11-18 20:22:10,584 INFO L899 garLoopResultBuilder]: For program point L545-2(lines 545 548) no Hoare annotation was computed. [2022-11-18 20:22:10,584 INFO L899 garLoopResultBuilder]: For program point L545-4(lines 545 548) no Hoare annotation was computed. [2022-11-18 20:22:10,584 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 540) no Hoare annotation was computed. [2022-11-18 20:22:10,584 INFO L899 garLoopResultBuilder]: For program point L545-5(line 545) no Hoare annotation was computed. [2022-11-18 20:22:10,585 INFO L899 garLoopResultBuilder]: For program point L545-6(line 545) no Hoare annotation was computed. [2022-11-18 20:22:10,585 INFO L895 garLoopResultBuilder]: At program point L545-7(lines 545 548) the Hoare annotation is: (let ((.cse5 (<= 1 |ULTIMATE.start_main_~i~1#1|)) (.cse10 (<= |ULTIMATE.start_main_~length2~0#1| 2)) (.cse0 (<= |ULTIMATE.start_main_~length3~0#1| 2147483647)) (.cse9 (= |ULTIMATE.start_main_~i~1#1| 0)) (.cse1 (< |ULTIMATE.start_main_~i~0#1| 2147483647)) (.cse2 (<= 1 |ULTIMATE.start_main_~length1~0#1|)) (.cse3 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse4 (<= |ULTIMATE.start_main_~length1~0#1| 2147483647)) (.cse6 (<= 2 |ULTIMATE.start_main_~length2~0#1|)) (.cse7 (<= 1 |ULTIMATE.start_main_~length3~0#1|)) (.cse8 (<= |ULTIMATE.start_main_~length2~0#1| 2147483647))) (or (and .cse0 .cse1 (< |ULTIMATE.start_main_~i~1#1| 2147483647) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse0 .cse9 .cse2 .cse3 .cse4 .cse10 .cse6 .cse7 .cse8) (and .cse0 .cse2 (<= |ULTIMATE.start_main_~i~1#1| 1) .cse3 .cse4 .cse5 .cse10 .cse6 .cse7 .cse8) (and .cse0 .cse9 .cse1 .cse2 .cse3 .cse4 .cse6 .cse7 .cse8))) [2022-11-18 20:22:10,585 INFO L899 garLoopResultBuilder]: For program point L545-8(lines 545 548) no Hoare annotation was computed. [2022-11-18 20:22:10,585 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 551) no Hoare annotation was computed. [2022-11-18 20:22:10,585 INFO L902 garLoopResultBuilder]: At program point L521(lines 514 522) the Hoare annotation is: true [2022-11-18 20:22:10,585 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 540) no Hoare annotation was computed. [2022-11-18 20:22:10,585 INFO L899 garLoopResultBuilder]: For program point L530-1(lines 523 554) no Hoare annotation was computed. [2022-11-18 20:22:10,585 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 545) no Hoare annotation was computed. [2022-11-18 20:22:10,590 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:22:10,592 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:22:10,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:22:10 BoogieIcfgContainer [2022-11-18 20:22:10,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:22:10,627 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:22:10,627 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:22:10,627 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:22:10,628 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:21:30" (3/4) ... [2022-11-18 20:22:10,631 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:22:10,647 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-18 20:22:10,648 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 20:22:10,648 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:22:10,648 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:22:10,697 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:22:10,697 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:22:10,698 INFO L158 Benchmark]: Toolchain (without parser) took 41806.76ms. Allocated memory was 127.9MB in the beginning and 597.7MB in the end (delta: 469.8MB). Free memory was 88.0MB in the beginning and 232.9MB in the end (delta: -144.9MB). Peak memory consumption was 325.0MB. Max. memory is 16.1GB. [2022-11-18 20:22:10,698 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 127.9MB. Free memory was 106.0MB in the beginning and 105.9MB in the end (delta: 153.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:22:10,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 625.14ms. Allocated memory is still 127.9MB. Free memory was 87.7MB in the beginning and 94.1MB in the end (delta: -6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:22:10,699 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.17ms. Allocated memory is still 127.9MB. Free memory was 94.1MB in the beginning and 92.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:22:10,699 INFO L158 Benchmark]: Boogie Preprocessor took 28.67ms. Allocated memory is still 127.9MB. Free memory was 92.0MB in the beginning and 90.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:22:10,700 INFO L158 Benchmark]: RCFGBuilder took 536.93ms. Allocated memory is still 127.9MB. Free memory was 90.5MB in the beginning and 76.4MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 20:22:10,700 INFO L158 Benchmark]: TraceAbstraction took 40492.09ms. Allocated memory was 127.9MB in the beginning and 597.7MB in the end (delta: 469.8MB). Free memory was 75.8MB in the beginning and 236.1MB in the end (delta: -160.3MB). Peak memory consumption was 331.8MB. Max. memory is 16.1GB. [2022-11-18 20:22:10,705 INFO L158 Benchmark]: Witness Printer took 70.47ms. Allocated memory is still 597.7MB. Free memory was 236.1MB in the beginning and 232.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:22:10,706 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 127.9MB. Free memory was 106.0MB in the beginning and 105.9MB in the end (delta: 153.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 625.14ms. Allocated memory is still 127.9MB. Free memory was 87.7MB in the beginning and 94.1MB in the end (delta: -6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.17ms. Allocated memory is still 127.9MB. Free memory was 94.1MB in the beginning and 92.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.67ms. Allocated memory is still 127.9MB. Free memory was 92.0MB in the beginning and 90.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 536.93ms. Allocated memory is still 127.9MB. Free memory was 90.5MB in the beginning and 76.4MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 40492.09ms. Allocated memory was 127.9MB in the beginning and 597.7MB in the end (delta: 469.8MB). Free memory was 75.8MB in the beginning and 236.1MB in the end (delta: -160.3MB). Peak memory consumption was 331.8MB. Max. memory is 16.1GB. * Witness Printer took 70.47ms. Allocated memory is still 597.7MB. Free memory was 236.1MB in the beginning and 232.9MB 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: 536]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 536]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 540]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 540]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 540]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 540]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 550]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 550]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 551]: 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, 48 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 40.4s, OverallIterations: 20, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 32.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1062 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1062 mSDsluCounter, 1573 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1031 mSDsCounter, 68 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 665 IncrementalHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 68 mSolverCounterUnsat, 542 mSDtfsCounter, 665 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 438 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=16, InterpolantAutomatonStates: 130, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 20 MinimizatonAttempts, 504 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 26 NumberOfFragments, 181 HoareAnnotationTreeSize, 6 FomulaSimplifications, 143224 FormulaSimplificationTreeSizeReduction, 32.3s HoareSimplificationTime, 6 FomulaSimplificationsInter, 577552 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 534 NumberOfCodeBlocks, 486 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 623 ConstructedInterpolants, 0 QuantifiedInterpolants, 1633 SizeOfPredicates, 17 NumberOfNonLiveVariables, 597 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 31 InterpolantComputations, 16 PerfectInterpolantSequences, 219/408 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 14 specifications checked. All of them hold - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 540]: Loop Invariant Derived loop invariant: (((((((i == 0 && length3 <= 2147483647) && 1 <= length1) && length1 <= 2147483647) && length2 <= length3 + 2147483646) && 2 <= length2) && 1 <= length3) && length2 <= 2147483647) || ((((((((1 <= i && length3 <= 2147483647) && i < 2147483647) && 1 <= length1) && length1 <= 2147483647) && length2 <= length3 + 2147483646) && 2 <= length2) && 1 <= length3) && length2 <= 2147483647) - InvariantResult [Line: 545]: Loop Invariant Derived loop invariant: (((((((((((length3 <= 2147483647 && i < 2147483647) && i < 2147483647) && 1 <= length1) && 0 <= i) && length1 <= 2147483647) && 1 <= i) && 2 <= length2) && 1 <= length3) && length2 <= 2147483647) || ((((((((length3 <= 2147483647 && i == 0) && 1 <= length1) && 0 <= i) && length1 <= 2147483647) && length2 <= 2) && 2 <= length2) && 1 <= length3) && length2 <= 2147483647)) || (((((((((length3 <= 2147483647 && 1 <= length1) && i <= 1) && 0 <= i) && length1 <= 2147483647) && 1 <= i) && length2 <= 2) && 2 <= length2) && 1 <= length3) && length2 <= 2147483647)) || ((((((((length3 <= 2147483647 && i == 0) && i < 2147483647) && 1 <= length1) && 0 <= i) && length1 <= 2147483647) && 2 <= length2) && 1 <= length3) && length2 <= 2147483647) - InvariantResult [Line: 515]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 517]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 514]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-18 20:22:10,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90fda5e5-05fb-46ca-92cf-567968aa40eb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE