./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength4.c --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_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/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_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/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_816f3a18-9387-4c34-aa2f-85bc38407430/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 f3d22aeda2fb15b9dd79854281ee0f5e475c0f7ee1551b76594f45703ddc81df --- 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 18:27:51,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:27:51,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:27:51,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:27:51,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:27:51,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:27:51,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:27:51,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:27:51,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:27:51,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:27:51,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:27:51,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:27:51,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:27:51,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:27:51,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:27:51,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:27:51,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:27:51,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:27:51,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:27:51,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:27:51,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:27:51,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:27:51,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:27:51,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:27:51,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:27:51,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:27:51,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:27:51,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:27:51,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:27:51,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:27:51,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:27:51,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:27:51,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:27:51,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:27:51,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:27:51,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:27:51,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:27:51,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:27:51,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:27:51,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:27:51,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:27:51,433 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 18:27:51,466 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:27:51,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:27:51,469 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:27:51,469 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:27:51,470 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:27:51,470 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:27:51,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:27:51,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:27:51,471 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:27:51,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:27:51,473 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:27:51,473 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:27:51,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:27:51,473 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:27:51,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:27:51,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:27:51,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:27:51,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:27:51,474 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 18:27:51,475 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:27:51,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:27:51,475 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:27:51,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:27:51,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:27:51,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:27:51,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:27:51,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:27:51,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:27:51,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:27:51,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:27:51,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:27:51,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:27:51,478 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:27:51,478 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:27:51,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:27:51,478 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3d22aeda2fb15b9dd79854281ee0f5e475c0f7ee1551b76594f45703ddc81df [2022-11-18 18:27:51,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:27:51,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:27:51,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:27:51,789 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:27:51,790 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:27:51,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength4.c [2022-11-18 18:27:51,876 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/data/893c4b077/d5c04a3b2d6a47b787f18df2d0ddb0f8/FLAG5cff0f73c [2022-11-18 18:27:52,366 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:27:52,367 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength4.c [2022-11-18 18:27:52,373 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/data/893c4b077/d5c04a3b2d6a47b787f18df2d0ddb0f8/FLAG5cff0f73c [2022-11-18 18:27:52,746 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/data/893c4b077/d5c04a3b2d6a47b787f18df2d0ddb0f8 [2022-11-18 18:27:52,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:27:52,754 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:27:52,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:27:52,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:27:52,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:27:52,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:27:52" (1/1) ... [2022-11-18 18:27:52,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62db38ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:52, skipping insertion in model container [2022-11-18 18:27:52,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:27:52" (1/1) ... [2022-11-18 18:27:52,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:27:52,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:27:52,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:27:52,973 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:27:52,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:27:53,006 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:27:53,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:53 WrapperNode [2022-11-18 18:27:53,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:27:53,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:27:53,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:27:53,009 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:27:53,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:53" (1/1) ... [2022-11-18 18:27:53,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:53" (1/1) ... [2022-11-18 18:27:53,046 INFO L138 Inliner]: procedures = 8, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2022-11-18 18:27:53,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:27:53,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:27:53,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:27:53,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:27:53,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:53" (1/1) ... [2022-11-18 18:27:53,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:53" (1/1) ... [2022-11-18 18:27:53,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:53" (1/1) ... [2022-11-18 18:27:53,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:53" (1/1) ... [2022-11-18 18:27:53,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:53" (1/1) ... [2022-11-18 18:27:53,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:53" (1/1) ... [2022-11-18 18:27:53,070 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:53" (1/1) ... [2022-11-18 18:27:53,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:53" (1/1) ... [2022-11-18 18:27:53,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:27:53,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:27:53,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:27:53,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:27:53,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:53" (1/1) ... [2022-11-18 18:27:53,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:27:53,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:27:53,111 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:27:53,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:27:53,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:27:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:27:53,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:27:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:27:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:27:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:27:53,218 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:27:53,219 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:27:53,382 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:27:53,389 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:27:53,389 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-18 18:27:53,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:27:53 BoogieIcfgContainer [2022-11-18 18:27:53,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:27:53,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:27:53,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:27:53,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:27:53,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:27:52" (1/3) ... [2022-11-18 18:27:53,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e8151f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:27:53, skipping insertion in model container [2022-11-18 18:27:53,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:53" (2/3) ... [2022-11-18 18:27:53,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e8151f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:27:53, skipping insertion in model container [2022-11-18 18:27:53,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:27:53" (3/3) ... [2022-11-18 18:27:53,401 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength4.c [2022-11-18 18:27:53,420 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:27:53,420 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-18 18:27:53,518 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:27:53,540 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;@6083ee1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:27:53,541 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-18 18:27:53,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:53,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 18:27:53,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:53,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 18:27:53,567 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:27:53,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:53,585 INFO L85 PathProgramCache]: Analyzing trace with hash 889666572, now seen corresponding path program 1 times [2022-11-18 18:27:53,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:53,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766868594] [2022-11-18 18:27:53,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:53,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:53,971 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 18:27:53,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:53,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766868594] [2022-11-18 18:27:53,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766868594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:53,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:53,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:27:53,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650816910] [2022-11-18 18:27:53,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:53,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:27:53,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:54,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:27:54,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:27:54,013 INFO L87 Difference]: Start difference. First operand has 29 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 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 18:27:54,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:54,090 INFO L93 Difference]: Finished difference Result 81 states and 101 transitions. [2022-11-18 18:27:54,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:27:54,093 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 18:27:54,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:54,101 INFO L225 Difference]: With dead ends: 81 [2022-11-18 18:27:54,101 INFO L226 Difference]: Without dead ends: 44 [2022-11-18 18:27:54,104 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 18:27:54,108 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 26 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 106 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 18:27:54,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 106 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:27:54,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-18 18:27:54,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 28. [2022-11-18 18:27:54,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states 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 18:27:54,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2022-11-18 18:27:54,144 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 6 [2022-11-18 18:27:54,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:54,145 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-11-18 18:27:54,158 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 18:27:54,159 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2022-11-18 18:27:54,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 18:27:54,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:54,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:54,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:27:54,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:27:54,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:54,162 INFO L85 PathProgramCache]: Analyzing trace with hash 235011595, now seen corresponding path program 1 times [2022-11-18 18:27:54,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:54,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146244822] [2022-11-18 18:27:54,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:54,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:54,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:54,256 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 18:27:54,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:54,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146244822] [2022-11-18 18:27:54,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146244822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:54,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:54,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:27:54,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515519567] [2022-11-18 18:27:54,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:54,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:27:54,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:54,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:27:54,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:27:54,262 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:54,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:54,331 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2022-11-18 18:27:54,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:27:54,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 18:27:54,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:54,333 INFO L225 Difference]: With dead ends: 59 [2022-11-18 18:27:54,335 INFO L226 Difference]: Without dead ends: 51 [2022-11-18 18:27:54,336 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 18:27:54,338 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 17 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:27:54,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 51 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:27:54,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-18 18:27:54,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 34. [2022-11-18 18:27:54,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:54,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-11-18 18:27:54,353 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 8 [2022-11-18 18:27:54,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:54,354 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-11-18 18:27:54,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:54,355 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-11-18 18:27:54,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 18:27:54,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:54,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:54,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:27:54,360 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:27:54,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:54,362 INFO L85 PathProgramCache]: Analyzing trace with hash 269484748, now seen corresponding path program 1 times [2022-11-18 18:27:54,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:54,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177757137] [2022-11-18 18:27:54,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:54,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:54,547 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 18:27:54,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:54,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177757137] [2022-11-18 18:27:54,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177757137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:54,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:54,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:27:54,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78612023] [2022-11-18 18:27:54,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:54,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:27:54,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:54,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:27:54,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:27:54,556 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:54,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:54,587 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2022-11-18 18:27:54,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:27:54,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 18:27:54,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:54,589 INFO L225 Difference]: With dead ends: 65 [2022-11-18 18:27:54,589 INFO L226 Difference]: Without dead ends: 34 [2022-11-18 18:27:54,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 18:27:54,591 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 3 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:27:54,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 44 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:27:54,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-18 18:27:54,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-18 18:27:54,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 33 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 18:27:54,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2022-11-18 18:27:54,598 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 8 [2022-11-18 18:27:54,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:54,599 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2022-11-18 18:27:54,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:54,600 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2022-11-18 18:27:54,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 18:27:54,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:54,600 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:54,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:27:54,601 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:27:54,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:54,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1479828344, now seen corresponding path program 1 times [2022-11-18 18:27:54,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:54,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487138433] [2022-11-18 18:27:54,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:54,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:54,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:54,699 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:54,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:54,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487138433] [2022-11-18 18:27:54,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487138433] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:27:54,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124514971] [2022-11-18 18:27:54,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:54,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:54,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:27:54,721 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:27:54,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:27:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:54,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:27:54,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:27:54,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:54,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:27:54,995 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:54,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124514971] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:27:54,995 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:27:54,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-18 18:27:54,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019435787] [2022-11-18 18:27:54,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:27:54,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 18:27:54,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:54,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 18:27:54,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:27:54,998 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 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 18:27:55,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:55,185 INFO L93 Difference]: Finished difference Result 113 states and 123 transitions. [2022-11-18 18:27:55,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:27:55,186 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 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 10 [2022-11-18 18:27:55,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:55,188 INFO L225 Difference]: With dead ends: 113 [2022-11-18 18:27:55,189 INFO L226 Difference]: Without dead ends: 112 [2022-11-18 18:27:55,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 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 18:27:55,191 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 88 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:27:55,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 139 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:27:55,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-11-18 18:27:55,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 45. [2022-11-18 18:27:55,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 44 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:55,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2022-11-18 18:27:55,199 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 10 [2022-11-18 18:27:55,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:55,200 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2022-11-18 18:27:55,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 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 18:27:55,200 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2022-11-18 18:27:55,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 18:27:55,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:55,201 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-11-18 18:27:55,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 18:27:55,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:55,407 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:27:55,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:55,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1369961646, now seen corresponding path program 1 times [2022-11-18 18:27:55,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:55,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431197733] [2022-11-18 18:27:55,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:55,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:55,523 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:55,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:55,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431197733] [2022-11-18 18:27:55,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431197733] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:27:55,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573632530] [2022-11-18 18:27:55,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:55,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:55,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:27:55,526 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:27:55,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 18:27:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:55,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:27:55,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:27:55,669 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:55,671 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:27:55,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573632530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:55,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:27:55,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 18:27:55,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367608795] [2022-11-18 18:27:55,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:55,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:27:55,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:55,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:27:55,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:27:55,674 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:55,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:55,752 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2022-11-18 18:27:55,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:27:55,753 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 18:27:55,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:55,755 INFO L225 Difference]: With dead ends: 45 [2022-11-18 18:27:55,755 INFO L226 Difference]: Without dead ends: 44 [2022-11-18 18:27:55,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 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 18:27:55,760 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 41 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:27:55,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 55 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:27:55,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-18 18:27:55,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-18 18:27:55,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 43 states have internal predecessors, (49), 0 states have call successors, (0), 0 states 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 18:27:55,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2022-11-18 18:27:55,778 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 11 [2022-11-18 18:27:55,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:55,778 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2022-11-18 18:27:55,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:55,779 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2022-11-18 18:27:55,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 18:27:55,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:55,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:55,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-18 18:27:55,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:55,986 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:27:55,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:55,986 INFO L85 PathProgramCache]: Analyzing trace with hash -482462648, now seen corresponding path program 1 times [2022-11-18 18:27:55,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:55,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169783828] [2022-11-18 18:27:55,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:55,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:56,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 18:27:56,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:56,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169783828] [2022-11-18 18:27:56,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169783828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:56,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:56,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:27:56,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116617626] [2022-11-18 18:27:56,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:56,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:27:56,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:56,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:27:56,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:27:56,040 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:56,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:56,085 INFO L93 Difference]: Finished difference Result 71 states and 80 transitions. [2022-11-18 18:27:56,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:27:56,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-18 18:27:56,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:56,086 INFO L225 Difference]: With dead ends: 71 [2022-11-18 18:27:56,087 INFO L226 Difference]: Without dead ends: 69 [2022-11-18 18:27:56,087 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 18:27:56,088 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 8 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:27:56,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 48 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:27:56,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-18 18:27:56,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2022-11-18 18:27:56,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 67 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:56,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 78 transitions. [2022-11-18 18:27:56,097 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 78 transitions. Word has length 12 [2022-11-18 18:27:56,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:56,097 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 78 transitions. [2022-11-18 18:27:56,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:56,098 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 78 transitions. [2022-11-18 18:27:56,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-18 18:27:56,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:56,099 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1] [2022-11-18 18:27:56,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:27:56,099 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:27:56,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:56,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1751714300, now seen corresponding path program 2 times [2022-11-18 18:27:56,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:56,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513317270] [2022-11-18 18:27:56,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:56,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:56,355 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:27:56,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:56,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513317270] [2022-11-18 18:27:56,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513317270] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:27:56,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532364961] [2022-11-18 18:27:56,356 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:27:56,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:56,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:27:56,358 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:27:56,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 18:27:56,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 18:27:56,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:27:56,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:27:56,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:27:56,507 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 18:27:56,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:27:56,608 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 18:27:56,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532364961] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:27:56,608 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:27:56,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-11-18 18:27:56,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755638794] [2022-11-18 18:27:56,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:27:56,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:27:56,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:56,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:27:56,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:27:56,611 INFO L87 Difference]: Start difference. First operand 68 states and 78 transitions. Second operand has 18 states, 17 states have (on average 2.235294117647059) internal successors, (38), 18 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 18:27:56,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:56,925 INFO L93 Difference]: Finished difference Result 210 states and 231 transitions. [2022-11-18 18:27:56,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:27:56,926 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.235294117647059) internal successors, (38), 18 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 22 [2022-11-18 18:27:56,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:56,930 INFO L225 Difference]: With dead ends: 210 [2022-11-18 18:27:56,930 INFO L226 Difference]: Without dead ends: 209 [2022-11-18 18:27:56,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 37 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 18:27:56,932 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 299 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:27:56,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 172 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:27:56,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-11-18 18:27:56,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 39. [2022-11-18 18:27:56,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.2) internal successors, (42), 38 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 18:27:56,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2022-11-18 18:27:56,959 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 22 [2022-11-18 18:27:56,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:56,960 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2022-11-18 18:27:56,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.235294117647059) internal successors, (38), 18 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 18:27:56,960 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2022-11-18 18:27:56,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 18:27:56,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:56,963 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-18 18:27:56,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-18 18:27:57,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:57,169 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:27:57,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:57,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1281122176, now seen corresponding path program 1 times [2022-11-18 18:27:57,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:57,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197429580] [2022-11-18 18:27:57,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:57,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:57,276 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 18:27:57,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:57,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197429580] [2022-11-18 18:27:57,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197429580] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:27:57,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810830752] [2022-11-18 18:27:57,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:57,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:57,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:27:57,278 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:27:57,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 18:27:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:57,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 18:27:57,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:27:57,415 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 18:27:57,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:27:57,464 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 18:27:57,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810830752] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:27:57,464 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:27:57,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-11-18 18:27:57,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930551160] [2022-11-18 18:27:57,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:27:57,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 18:27:57,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:57,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 18:27:57,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:27:57,466 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:57,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:57,758 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2022-11-18 18:27:57,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-18 18:27:57,759 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-18 18:27:57,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:57,759 INFO L225 Difference]: With dead ends: 107 [2022-11-18 18:27:57,760 INFO L226 Difference]: Without dead ends: 76 [2022-11-18 18:27:57,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2022-11-18 18:27:57,761 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 82 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:27:57,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 52 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:27:57,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-18 18:27:57,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 73. [2022-11-18 18:27:57,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 69 states have (on average 1.1304347826086956) internal successors, (78), 72 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:57,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2022-11-18 18:27:57,783 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 23 [2022-11-18 18:27:57,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:57,783 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2022-11-18 18:27:57,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:57,784 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2022-11-18 18:27:57,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 18:27:57,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:57,785 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:57,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:27:57,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:57,992 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:27:57,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:57,992 INFO L85 PathProgramCache]: Analyzing trace with hash -363414695, now seen corresponding path program 1 times [2022-11-18 18:27:57,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:57,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439278677] [2022-11-18 18:27:57,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:57,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:58,110 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-18 18:27:58,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:58,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439278677] [2022-11-18 18:27:58,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439278677] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:27:58,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625856354] [2022-11-18 18:27:58,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:58,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:58,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:27:58,114 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:27:58,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 18:27:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:58,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 18:27:58,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:27:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 18:27:58,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:27:58,618 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 18:27:58,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625856354] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:27:58,619 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:27:58,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 20 [2022-11-18 18:27:58,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056070064] [2022-11-18 18:27:58,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:27:58,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 18:27:58,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:58,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 18:27:58,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2022-11-18 18:27:58,623 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand has 20 states, 20 states have (on average 3.25) internal successors, (65), 20 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:59,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:27:59,171 INFO L93 Difference]: Finished difference Result 184 states and 206 transitions. [2022-11-18 18:27:59,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-18 18:27:59,172 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.25) internal successors, (65), 20 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-18 18:27:59,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:27:59,173 INFO L225 Difference]: With dead ends: 184 [2022-11-18 18:27:59,173 INFO L226 Difference]: Without dead ends: 127 [2022-11-18 18:27:59,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=392, Invalid=1248, Unknown=0, NotChecked=0, Total=1640 [2022-11-18 18:27:59,177 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 134 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:27:59,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 106 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:27:59,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-18 18:27:59,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2022-11-18 18:27:59,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 121 states have (on average 1.0743801652892562) internal successors, (130), 124 states have internal predecessors, (130), 0 states have call successors, (0), 0 states 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 18:27:59,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 130 transitions. [2022-11-18 18:27:59,202 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 130 transitions. Word has length 32 [2022-11-18 18:27:59,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:27:59,202 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 130 transitions. [2022-11-18 18:27:59,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.25) internal successors, (65), 20 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:59,203 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 130 transitions. [2022-11-18 18:27:59,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-18 18:27:59,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:27:59,210 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:59,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 18:27:59,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:59,416 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:27:59,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:59,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1063103538, now seen corresponding path program 1 times [2022-11-18 18:27:59,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:59,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344114312] [2022-11-18 18:27:59,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:59,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:59,896 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 1 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 18:27:59,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:59,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344114312] [2022-11-18 18:27:59,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344114312] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:27:59,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519650689] [2022-11-18 18:27:59,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:59,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:59,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:27:59,898 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:27:59,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 18:27:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:59,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 18:27:59,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:00,485 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 1 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 18:28:00,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:01,038 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 1 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 18:28:01,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519650689] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:01,038 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:01,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 47 [2022-11-18 18:28:01,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915692708] [2022-11-18 18:28:01,039 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:01,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-11-18 18:28:01,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:01,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-11-18 18:28:01,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=1634, Unknown=0, NotChecked=0, Total=2162 [2022-11-18 18:28:01,041 INFO L87 Difference]: Start difference. First operand 125 states and 130 transitions. Second operand has 47 states, 47 states have (on average 2.234042553191489) internal successors, (105), 47 states have internal predecessors, (105), 0 states have call successors, (0), 0 states 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 18:28:01,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:01,561 INFO L93 Difference]: Finished difference Result 314 states and 347 transitions. [2022-11-18 18:28:01,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-18 18:28:01,562 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.234042553191489) internal successors, (105), 47 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-11-18 18:28:01,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:01,565 INFO L225 Difference]: With dead ends: 314 [2022-11-18 18:28:01,565 INFO L226 Difference]: Without dead ends: 221 [2022-11-18 18:28:01,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=943, Invalid=2717, Unknown=0, NotChecked=0, Total=3660 [2022-11-18 18:28:01,571 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 107 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:01,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 160 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:28:01,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-11-18 18:28:01,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2022-11-18 18:28:01,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 217 states have (on average 1.0414746543778801) internal successors, (226), 220 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:01,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 226 transitions. [2022-11-18 18:28:01,602 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 226 transitions. Word has length 49 [2022-11-18 18:28:01,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:01,602 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 226 transitions. [2022-11-18 18:28:01,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.234042553191489) internal successors, (105), 47 states have internal predecessors, (105), 0 states have call successors, (0), 0 states 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 18:28:01,603 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 226 transitions. [2022-11-18 18:28:01,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-18 18:28:01,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:01,607 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:01,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:01,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 18:28:01,813 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:28:01,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:01,813 INFO L85 PathProgramCache]: Analyzing trace with hash -792116142, now seen corresponding path program 2 times [2022-11-18 18:28:01,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:01,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786176803] [2022-11-18 18:28:01,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:01,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:03,019 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 1 proven. 435 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 18:28:03,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:03,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786176803] [2022-11-18 18:28:03,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786176803] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:03,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631952788] [2022-11-18 18:28:03,020 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:28:03,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:03,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:03,021 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:03,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 18:28:03,124 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:28:03,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:28:03,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-18 18:28:03,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:04,627 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 1 proven. 435 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 18:28:04,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:06,636 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 1 proven. 435 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 18:28:06,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631952788] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:06,636 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:06,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 95 [2022-11-18 18:28:06,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815780322] [2022-11-18 18:28:06,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:06,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-11-18 18:28:06,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:06,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-11-18 18:28:06,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=6850, Unknown=0, NotChecked=0, Total=8930 [2022-11-18 18:28:06,643 INFO L87 Difference]: Start difference. First operand 221 states and 226 transitions. Second operand has 95 states, 95 states have (on average 2.1157894736842104) internal successors, (201), 95 states have internal predecessors, (201), 0 states have call successors, (0), 0 states 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 18:28:08,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:08,270 INFO L93 Difference]: Finished difference Result 570 states and 627 transitions. [2022-11-18 18:28:08,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-11-18 18:28:08,271 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 2.1157894736842104) internal successors, (201), 95 states have internal predecessors, (201), 0 states have call successors, (0), 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 81 [2022-11-18 18:28:08,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:08,272 INFO L225 Difference]: With dead ends: 570 [2022-11-18 18:28:08,273 INFO L226 Difference]: Without dead ends: 413 [2022-11-18 18:28:08,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3091 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=3807, Invalid=11693, Unknown=0, NotChecked=0, Total=15500 [2022-11-18 18:28:08,279 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 297 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:08,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 144 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 18:28:08,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-11-18 18:28:08,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2022-11-18 18:28:08,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 409 states have (on average 1.02200488997555) internal successors, (418), 412 states have internal predecessors, (418), 0 states have call successors, (0), 0 states 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 18:28:08,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 418 transitions. [2022-11-18 18:28:08,312 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 418 transitions. Word has length 81 [2022-11-18 18:28:08,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:08,315 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 418 transitions. [2022-11-18 18:28:08,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 2.1157894736842104) internal successors, (201), 95 states have internal predecessors, (201), 0 states have call successors, (0), 0 states 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 18:28:08,315 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 418 transitions. [2022-11-18 18:28:08,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-18 18:28:08,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:08,320 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:08,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:08,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 18:28:08,526 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:28:08,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:08,526 INFO L85 PathProgramCache]: Analyzing trace with hash -379128686, now seen corresponding path program 3 times [2022-11-18 18:28:08,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:08,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780499823] [2022-11-18 18:28:08,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:08,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:12,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 1 proven. 1891 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 18:28:12,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:12,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780499823] [2022-11-18 18:28:12,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780499823] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:12,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924944111] [2022-11-18 18:28:12,237 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 18:28:12,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:12,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:12,239 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:12,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 18:28:12,336 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 18:28:12,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:28:12,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:28:12,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:12,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1892 trivial. 0 not checked. [2022-11-18 18:28:12,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:28:12,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924944111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:12,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:28:12,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [65] total 67 [2022-11-18 18:28:12,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156782940] [2022-11-18 18:28:12,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:12,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:28:12,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:12,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:28:12,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1092, Invalid=3330, Unknown=0, NotChecked=0, Total=4422 [2022-11-18 18:28:12,442 INFO L87 Difference]: Start difference. First operand 413 states and 418 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:12,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:12,531 INFO L93 Difference]: Finished difference Result 413 states and 418 transitions. [2022-11-18 18:28:12,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:28:12,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2022-11-18 18:28:12,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:12,535 INFO L225 Difference]: With dead ends: 413 [2022-11-18 18:28:12,535 INFO L226 Difference]: Without dead ends: 412 [2022-11-18 18:28:12,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1052 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1096, Invalid=3460, Unknown=0, NotChecked=0, Total=4556 [2022-11-18 18:28:12,538 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:12,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 28 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:28:12,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-11-18 18:28:12,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2022-11-18 18:28:12,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 409 states have (on average 1.019559902200489) internal successors, (417), 411 states have internal predecessors, (417), 0 states have call successors, (0), 0 states 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 18:28:12,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 417 transitions. [2022-11-18 18:28:12,571 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 417 transitions. Word has length 145 [2022-11-18 18:28:12,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:12,572 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 417 transitions. [2022-11-18 18:28:12,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:12,573 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 417 transitions. [2022-11-18 18:28:12,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-18 18:28:12,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:12,578 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:12,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:12,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 18:28:12,784 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:28:12,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:12,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1023089275, now seen corresponding path program 2 times [2022-11-18 18:28:12,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:12,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378993371] [2022-11-18 18:28:12,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:12,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:16,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1905 backedges. 1 proven. 1891 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-18 18:28:16,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:16,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378993371] [2022-11-18 18:28:16,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378993371] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:16,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048395329] [2022-11-18 18:28:16,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:28:16,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:16,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:16,174 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:16,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 18:28:16,335 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:28:16,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:28:16,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 66 conjunts are in the unsatisfiable core [2022-11-18 18:28:16,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:20,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1905 backedges. 1 proven. 1891 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-18 18:28:20,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:26,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1905 backedges. 1 proven. 1891 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-18 18:28:26,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048395329] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:26,710 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:26,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 191 [2022-11-18 18:28:26,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780429200] [2022-11-18 18:28:26,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:26,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2022-11-18 18:28:26,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:26,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2022-11-18 18:28:26,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6334, Invalid=29956, Unknown=0, NotChecked=0, Total=36290 [2022-11-18 18:28:26,719 INFO L87 Difference]: Start difference. First operand 412 states and 417 transitions. Second operand has 191 states, 191 states have (on average 2.0575916230366493) internal successors, (393), 191 states have internal predecessors, (393), 0 states have call successors, (0), 0 states 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 18:28:28,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:28,630 INFO L93 Difference]: Finished difference Result 717 states and 729 transitions. [2022-11-18 18:28:28,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-11-18 18:28:28,631 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 191 states have (on average 2.0575916230366493) internal successors, (393), 191 states have internal predecessors, (393), 0 states have call successors, (0), 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 149 [2022-11-18 18:28:28,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:28,634 INFO L225 Difference]: With dead ends: 717 [2022-11-18 18:28:28,635 INFO L226 Difference]: Without dead ends: 433 [2022-11-18 18:28:28,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14727 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=9930, Invalid=39132, Unknown=0, NotChecked=0, Total=49062 [2022-11-18 18:28:28,641 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 452 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:28,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 184 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 18:28:28,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-11-18 18:28:28,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 424. [2022-11-18 18:28:28,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 421 states have (on average 1.0190023752969122) internal successors, (429), 423 states have internal predecessors, (429), 0 states have call successors, (0), 0 states 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 18:28:28,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 429 transitions. [2022-11-18 18:28:28,674 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 429 transitions. Word has length 149 [2022-11-18 18:28:28,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:28,674 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 429 transitions. [2022-11-18 18:28:28,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 191 states have (on average 2.0575916230366493) internal successors, (393), 191 states have internal predecessors, (393), 0 states have call successors, (0), 0 states 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 18:28:28,675 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 429 transitions. [2022-11-18 18:28:28,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-18 18:28:28,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:28,677 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:28,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:28,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 18:28:28,883 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:28:28,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:28,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1695412863, now seen corresponding path program 3 times [2022-11-18 18:28:28,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:28,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383254618] [2022-11-18 18:28:28,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:28,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:29,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2030 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 2017 trivial. 0 not checked. [2022-11-18 18:28:29,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:29,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383254618] [2022-11-18 18:28:29,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383254618] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:29,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343720837] [2022-11-18 18:28:29,083 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 18:28:29,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:29,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:29,085 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:29,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 18:28:29,188 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 18:28:29,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:28:29,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 18:28:29,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:29,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2030 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2021 trivial. 0 not checked. [2022-11-18 18:28:29,251 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:28:29,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343720837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:29,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:28:29,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2022-11-18 18:28:29,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324686980] [2022-11-18 18:28:29,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:29,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:28:29,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:29,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:28:29,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:28:29,253 INFO L87 Difference]: Start difference. First operand 424 states and 429 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:29,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:29,322 INFO L93 Difference]: Finished difference Result 424 states and 429 transitions. [2022-11-18 18:28:29,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:28:29,323 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-11-18 18:28:29,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:29,325 INFO L225 Difference]: With dead ends: 424 [2022-11-18 18:28:29,325 INFO L226 Difference]: Without dead ends: 408 [2022-11-18 18:28:29,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:28:29,326 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:29,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 49 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:28:29,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-11-18 18:28:29,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 408. [2022-11-18 18:28:29,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 406 states have (on average 1.0123152709359606) internal successors, (411), 407 states have internal predecessors, (411), 0 states have call successors, (0), 0 states 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 18:28:29,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 411 transitions. [2022-11-18 18:28:29,359 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 411 transitions. Word has length 153 [2022-11-18 18:28:29,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:29,359 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 411 transitions. [2022-11-18 18:28:29,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:29,359 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 411 transitions. [2022-11-18 18:28:29,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-18 18:28:29,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:29,363 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 64, 64, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-18 18:28:29,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:29,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-18 18:28:29,581 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:28:29,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:29,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1189383870, now seen corresponding path program 1 times [2022-11-18 18:28:29,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:29,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289460453] [2022-11-18 18:28:29,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:29,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:29,979 INFO L134 CoverageAnalysis]: Checked inductivity of 8199 backedges. 0 proven. 4167 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-11-18 18:28:29,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:29,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289460453] [2022-11-18 18:28:29,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289460453] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:29,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347850046] [2022-11-18 18:28:29,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:29,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:29,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:29,982 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:30,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 18:28:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:30,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:28:30,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:30,604 INFO L134 CoverageAnalysis]: Checked inductivity of 8199 backedges. 4167 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-11-18 18:28:30,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:28:30,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347850046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:30,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:28:30,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 18:28:30,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576421916] [2022-11-18 18:28:30,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:30,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:28:30,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:30,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:28:30,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:28:30,607 INFO L87 Difference]: Start difference. First operand 408 states and 411 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 18:28:30,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:30,671 INFO L93 Difference]: Finished difference Result 408 states and 411 transitions. [2022-11-18 18:28:30,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:28:30,672 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 272 [2022-11-18 18:28:30,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:30,674 INFO L225 Difference]: With dead ends: 408 [2022-11-18 18:28:30,674 INFO L226 Difference]: Without dead ends: 407 [2022-11-18 18:28:30,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:28:30,675 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:30,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 48 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:28:30,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-11-18 18:28:30,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2022-11-18 18:28:30,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.0098522167487685) internal successors, (410), 406 states have internal predecessors, (410), 0 states have call successors, (0), 0 states 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 18:28:30,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 410 transitions. [2022-11-18 18:28:30,707 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 410 transitions. Word has length 272 [2022-11-18 18:28:30,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:30,708 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 410 transitions. [2022-11-18 18:28:30,708 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 18:28:30,708 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 410 transitions. [2022-11-18 18:28:30,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2022-11-18 18:28:30,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:28:30,715 INFO L195 NwaCegarLoop]: trace histogram [96, 96, 96, 96, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1] [2022-11-18 18:28:30,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:30,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:30,922 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:28:30,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:30,922 INFO L85 PathProgramCache]: Analyzing trace with hash -672702516, now seen corresponding path program 2 times [2022-11-18 18:28:30,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:30,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114444914] [2022-11-18 18:28:30,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:30,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:31,559 INFO L134 CoverageAnalysis]: Checked inductivity of 18547 backedges. 0 proven. 12499 refuted. 0 times theorem prover too weak. 6048 trivial. 0 not checked. [2022-11-18 18:28:31,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:31,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114444914] [2022-11-18 18:28:31,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114444914] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:31,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951270364] [2022-11-18 18:28:31,560 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:28:31,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:31,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:31,561 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:31,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 18:28:31,864 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:28:31,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:28:31,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 18:28:31,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:32,501 INFO L134 CoverageAnalysis]: Checked inductivity of 18547 backedges. 0 proven. 12499 refuted. 0 times theorem prover too weak. 6048 trivial. 0 not checked. [2022-11-18 18:28:32,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:33,204 INFO L134 CoverageAnalysis]: Checked inductivity of 18547 backedges. 0 proven. 12499 refuted. 0 times theorem prover too weak. 6048 trivial. 0 not checked. [2022-11-18 18:28:33,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951270364] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:33,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:33,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-11-18 18:28:33,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558607639] [2022-11-18 18:28:33,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:33,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-18 18:28:33,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:33,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-18 18:28:33,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:28:33,208 INFO L87 Difference]: Start difference. First operand 407 states and 410 transitions. Second operand has 16 states, 15 states have (on average 5.266666666666667) internal successors, (79), 16 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 18:28:33,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:28:33,306 INFO L93 Difference]: Finished difference Result 544 states and 549 transitions. [2022-11-18 18:28:33,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 18:28:33,308 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.266666666666667) internal successors, (79), 16 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) Word has length 406 [2022-11-18 18:28:33,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:28:33,309 INFO L225 Difference]: With dead ends: 544 [2022-11-18 18:28:33,309 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 18:28:33,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 821 GetRequests, 803 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2022-11-18 18:28:33,310 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 27 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:28:33,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 48 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:28:33,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 18:28:33,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 18:28:33,312 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 18:28:33,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 18:28:33,313 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 406 [2022-11-18 18:28:33,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:28:33,313 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 18:28:33,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.266666666666667) internal successors, (79), 16 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 18:28:33,314 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 18:28:33,314 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 18:28:33,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-18 18:28:33,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-18 18:28:33,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-18 18:28:33,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-18 18:28:33,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-18 18:28:33,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-18 18:28:33,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:33,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 18:28:33,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 18:28:38,020 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-18 18:28:38,020 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2022-11-18 18:28:38,020 INFO L899 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2022-11-18 18:28:38,020 INFO L899 garLoopResultBuilder]: For program point L15-4(line 15) no Hoare annotation was computed. [2022-11-18 18:28:38,021 INFO L895 garLoopResultBuilder]: At program point L15-5(lines 15 17) the Hoare annotation is: (let ((.cse0 (= 32 |ULTIMATE.start_foo_~size#1|)) (.cse2 (= |ULTIMATE.start_foo_~i~0#1| 0)) (.cse4 (= |ULTIMATE.start_main_~i~1#1| 0)) (.cse5 (< |ULTIMATE.start_foo_~i~0#1| 2147483647)) (.cse1 (<= 1 |ULTIMATE.start_main_~i~1#1|)) (.cse6 (<= |ULTIMATE.start_foo_~size#1| 32)) (.cse7 (<= 1 |ULTIMATE.start_foo_~i~0#1|)) (.cse3 (< |ULTIMATE.start_main_~i~1#1| 2147483645))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse2) (and .cse5 .cse4 .cse6 .cse7) (and .cse5 .cse1 .cse6 .cse7 .cse3))) [2022-11-18 18:28:38,021 INFO L899 garLoopResultBuilder]: For program point L15-6(lines 15 17) no Hoare annotation was computed. [2022-11-18 18:28:38,021 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 18:28:38,021 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2022-11-18 18:28:38,021 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 18:28:38,021 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-11-18 18:28:38,021 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 18:28:38,021 INFO L899 garLoopResultBuilder]: For program point L28-2(lines 28 32) no Hoare annotation was computed. [2022-11-18 18:28:38,022 INFO L899 garLoopResultBuilder]: For program point L28-3(line 28) no Hoare annotation was computed. [2022-11-18 18:28:38,022 INFO L899 garLoopResultBuilder]: For program point L28-4(line 28) no Hoare annotation was computed. [2022-11-18 18:28:38,022 INFO L895 garLoopResultBuilder]: At program point L28-5(lines 28 32) the Hoare annotation is: (and (< |ULTIMATE.start_foo_~i~0#1| 2147483647) (<= |ULTIMATE.start_main_~i~1#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648)) (<= |ULTIMATE.start_foo_~size#1| 32) (<= 1 |ULTIMATE.start_foo_~i~0#1|)) [2022-11-18 18:28:38,022 INFO L899 garLoopResultBuilder]: For program point L28-6(lines 28 32) no Hoare annotation was computed. [2022-11-18 18:28:38,022 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2022-11-18 18:28:38,022 INFO L902 garLoopResultBuilder]: At program point L33(lines 21 34) the Hoare annotation is: true [2022-11-18 18:28:38,022 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 18:28:38,022 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 31) no Hoare annotation was computed. [2022-11-18 18:28:38,022 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-11-18 18:28:38,022 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 25 27) no Hoare annotation was computed. [2022-11-18 18:28:38,022 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2022-11-18 18:28:38,023 INFO L899 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed. [2022-11-18 18:28:38,023 INFO L895 garLoopResultBuilder]: At program point L25-5(lines 25 27) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~1#1| 0) (and (< |ULTIMATE.start_foo_~i~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~i~1#1|) (<= |ULTIMATE.start_foo_~size#1| 32) (<= 1 |ULTIMATE.start_foo_~i~0#1|) (< |ULTIMATE.start_main_~i~1#1| 2147483646))) [2022-11-18 18:28:38,023 INFO L899 garLoopResultBuilder]: For program point L25-6(lines 25 27) no Hoare annotation was computed. [2022-11-18 18:28:38,023 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-18 18:28:38,023 INFO L899 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2022-11-18 18:28:38,023 INFO L895 garLoopResultBuilder]: At program point L18(lines 12 19) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_foo_~i~0#1| 2147483647)) (.cse1 (<= |ULTIMATE.start_foo_~size#1| 32)) (.cse2 (<= 1 |ULTIMATE.start_foo_~i~0#1|))) (or (and .cse0 (= |ULTIMATE.start_main_~i~1#1| 0) .cse1 .cse2) (and .cse0 (<= 1 |ULTIMATE.start_main_~i~1#1|) .cse1 .cse2 (< |ULTIMATE.start_main_~i~1#1| 2147483645)))) [2022-11-18 18:28:38,026 INFO L444 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:38,032 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:28:38,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:28:38 BoogieIcfgContainer [2022-11-18 18:28:38,049 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:28:38,050 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:28:38,050 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:28:38,050 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:28:38,051 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:27:53" (3/4) ... [2022-11-18 18:28:38,054 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 18:28:38,069 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-18 18:28:38,071 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 18:28:38,071 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 18:28:38,071 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 18:28:38,102 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 18:28:38,102 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:28:38,103 INFO L158 Benchmark]: Toolchain (without parser) took 45349.49ms. Allocated memory was 98.6MB in the beginning and 327.2MB in the end (delta: 228.6MB). Free memory was 61.0MB in the beginning and 182.0MB in the end (delta: -120.9MB). Peak memory consumption was 107.4MB. Max. memory is 16.1GB. [2022-11-18 18:28:38,103 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 98.6MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:28:38,104 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.03ms. Allocated memory is still 98.6MB. Free memory was 60.8MB in the beginning and 74.5MB in the end (delta: -13.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 18:28:38,104 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.64ms. Allocated memory is still 98.6MB. Free memory was 74.5MB in the beginning and 73.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:28:38,104 INFO L158 Benchmark]: Boogie Preprocessor took 25.81ms. Allocated memory is still 98.6MB. Free memory was 73.2MB in the beginning and 72.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:28:38,105 INFO L158 Benchmark]: RCFGBuilder took 317.41ms. Allocated memory is still 98.6MB. Free memory was 72.0MB in the beginning and 61.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 18:28:38,105 INFO L158 Benchmark]: TraceAbstraction took 44655.63ms. Allocated memory was 98.6MB in the beginning and 327.2MB in the end (delta: 228.6MB). Free memory was 60.2MB in the beginning and 184.1MB in the end (delta: -123.8MB). Peak memory consumption was 186.0MB. Max. memory is 16.1GB. [2022-11-18 18:28:38,105 INFO L158 Benchmark]: Witness Printer took 52.84ms. Allocated memory is still 327.2MB. Free memory was 184.1MB in the beginning and 182.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:28:38,107 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 98.6MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.03ms. Allocated memory is still 98.6MB. Free memory was 60.8MB in the beginning and 74.5MB in the end (delta: -13.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.64ms. Allocated memory is still 98.6MB. Free memory was 74.5MB in the beginning and 73.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.81ms. Allocated memory is still 98.6MB. Free memory was 73.2MB in the beginning and 72.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 317.41ms. Allocated memory is still 98.6MB. Free memory was 72.0MB in the beginning and 61.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 44655.63ms. Allocated memory was 98.6MB in the beginning and 327.2MB in the end (delta: 228.6MB). Free memory was 60.2MB in the beginning and 184.1MB in the end (delta: -123.8MB). Peak memory consumption was 186.0MB. Max. memory is 16.1GB. * Witness Printer took 52.84ms. Allocated memory is still 327.2MB. Free memory was 184.1MB in the beginning and 182.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: 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, 29 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 44.5s, OverallIterations: 16, TraceHistogramMax: 96, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1620 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1620 mSDsluCounter, 1434 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1140 mSDsCounter, 113 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1315 IncrementalHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 113 mSolverCounterUnsat, 294 mSDtfsCounter, 1315 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2492 GetRequests, 1860 SyntacticMatches, 0 SemanticMatches, 632 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20273 ImplicationChecksByTransitivity, 21.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=424occurred in iteration=13, InterpolantAutomatonStates: 292, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 285 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 151 NumberOfFragments, 122 HoareAnnotationTreeSize, 5 FomulaSimplifications, 1972 FormulaSimplificationTreeSizeReduction, 2.9s HoareSimplificationTime, 5 FomulaSimplificationsInter, 11314 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 28.3s InterpolantComputationTime, 2740 NumberOfCodeBlocks, 2467 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 3476 ConstructedInterpolants, 0 QuantifiedInterpolants, 11704 SizeOfPredicates, 87 NumberOfNonLiveVariables, 3215 ConjunctsInSsa, 171 ConjunctsInUnsatCore, 36 InterpolantComputations, 8 PerfectInterpolantSequences, 36518/87450 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 6 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: (((i < 2147483647 && i == 0) && size <= 32) && 1 <= i) || ((((i < 2147483647 && 1 <= i) && size <= 32) && 1 <= i) && i < 2147483645) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: (((((32 == size && 1 <= i) && i == 0) && i < 2147483645) || ((i == 0 && 32 == size) && i == 0)) || (((i < 2147483647 && i == 0) && size <= 32) && 1 <= i)) || ((((i < 2147483647 && 1 <= i) && size <= 32) && 1 <= i) && i < 2147483645) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: i == 0 || ((((i < 2147483647 && 1 <= i) && size <= 32) && 1 <= i) && i < 2147483646) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (((i < 2147483647 && i <= 2147483647) && 0 <= i + 2147483648) && size <= 32) && 1 <= i RESULT: Ultimate proved your program to be correct! [2022-11-18 18:28:38,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_816f3a18-9387-4c34-aa2f-85bc38407430/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE