./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysWithLenghtAtDeclaration.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysWithLenghtAtDeclaration.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef4a52e45666a829b602608a46cff9c8137910dd58bdfaebe016ce17984d1ac8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:25:59,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:25:59,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:25:59,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:25:59,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:25:59,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:25:59,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:25:59,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:25:59,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:25:59,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:25:59,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:25:59,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:25:59,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:25:59,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:25:59,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:25:59,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:25:59,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:25:59,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:25:59,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:25:59,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:25:59,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:25:59,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:25:59,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:25:59,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:25:59,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:25:59,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:25:59,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:25:59,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:25:59,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:25:59,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:25:59,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:25:59,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:25:59,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:25:59,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:25:59,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:25:59,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:25:59,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:25:59,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:25:59,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:25:59,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:25:59,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:25:59,479 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 17:25:59,532 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:25:59,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:25:59,533 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:25:59,533 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:25:59,534 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:25:59,534 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:25:59,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:25:59,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:25:59,535 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:25:59,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:25:59,536 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:25:59,536 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:25:59,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:25:59,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:25:59,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:25:59,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:25:59,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:25:59,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:25:59,554 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 17:25:59,555 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:25:59,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:25:59,555 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:25:59,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:25:59,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:25:59,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:25:59,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:25:59,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:25:59,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:25:59,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:25:59,557 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:25:59,557 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:25:59,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:25:59,558 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:25:59,558 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:25:59,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:25:59,559 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_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef4a52e45666a829b602608a46cff9c8137910dd58bdfaebe016ce17984d1ac8 [2022-11-21 17:25:59,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:25:59,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:25:59,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:25:59,922 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:25:59,922 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:25:59,923 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-memsafety/ArraysWithLenghtAtDeclaration.c [2022-11-21 17:26:02,966 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:26:03,140 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:26:03,144 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/sv-benchmarks/c/ldv-memsafety/ArraysWithLenghtAtDeclaration.c [2022-11-21 17:26:03,149 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/data/98f858e9d/922a031ca573479b9af545edc19b7d42/FLAG3c41f6a41 [2022-11-21 17:26:03,185 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/data/98f858e9d/922a031ca573479b9af545edc19b7d42 [2022-11-21 17:26:03,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:26:03,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:26:03,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:26:03,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:26:03,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:26:03,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:26:03" (1/1) ... [2022-11-21 17:26:03,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c7b0ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:03, skipping insertion in model container [2022-11-21 17:26:03,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:26:03" (1/1) ... [2022-11-21 17:26:03,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:26:03,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:26:03,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:26:03,440 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:26:03,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:26:03,479 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:26:03,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:03 WrapperNode [2022-11-21 17:26:03,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:26:03,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:26:03,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:26:03,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:26:03,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:03" (1/1) ... [2022-11-21 17:26:03,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:03" (1/1) ... [2022-11-21 17:26:03,524 INFO L138 Inliner]: procedures = 8, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2022-11-21 17:26:03,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:26:03,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:26:03,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:26:03,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:26:03,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:03" (1/1) ... [2022-11-21 17:26:03,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:03" (1/1) ... [2022-11-21 17:26:03,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:03" (1/1) ... [2022-11-21 17:26:03,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:03" (1/1) ... [2022-11-21 17:26:03,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:03" (1/1) ... [2022-11-21 17:26:03,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:03" (1/1) ... [2022-11-21 17:26:03,545 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:03" (1/1) ... [2022-11-21 17:26:03,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:03" (1/1) ... [2022-11-21 17:26:03,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:26:03,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:26:03,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:26:03,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:26:03,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:03" (1/1) ... [2022-11-21 17:26:03,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:26:03,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:26:03,592 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:26:03,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:26:03,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:26:03,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:26:03,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:26:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:26:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:26:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:26:03,787 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:26:03,789 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:26:03,996 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:26:04,002 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:26:04,002 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-21 17:26:04,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:26:04 BoogieIcfgContainer [2022-11-21 17:26:04,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:26:04,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:26:04,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:26:04,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:26:04,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:26:03" (1/3) ... [2022-11-21 17:26:04,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e840dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:26:04, skipping insertion in model container [2022-11-21 17:26:04,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:03" (2/3) ... [2022-11-21 17:26:04,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e840dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:26:04, skipping insertion in model container [2022-11-21 17:26:04,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:26:04" (3/3) ... [2022-11-21 17:26:04,014 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysWithLenghtAtDeclaration.c [2022-11-21 17:26:04,033 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:26:04,033 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-21 17:26:04,095 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:26:04,106 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;@1fbd771e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:26:04,106 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-21 17:26:04,111 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) [2022-11-21 17:26:04,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 17:26:04,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:26:04,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-21 17:26:04,121 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)] === [2022-11-21 17:26:04,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:26:04,128 INFO L85 PathProgramCache]: Analyzing trace with hash 889666572, now seen corresponding path program 1 times [2022-11-21 17:26:04,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:26:04,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011910911] [2022-11-21 17:26:04,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:26:04,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:26:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:04,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:26:04,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:26:04,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011910911] [2022-11-21 17:26:04,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011910911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:26:04,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:26:04,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:26:04,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293524812] [2022-11-21 17:26:04,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:26:04,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:26:04,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:26:04,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:26:04,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:26:04,520 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) [2022-11-21 17:26:04,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:26:04,588 INFO L93 Difference]: Finished difference Result 81 states and 101 transitions. [2022-11-21 17:26:04,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:26:04,590 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 [2022-11-21 17:26:04,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:26:04,599 INFO L225 Difference]: With dead ends: 81 [2022-11-21 17:26:04,599 INFO L226 Difference]: Without dead ends: 44 [2022-11-21 17:26:04,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:26:04,605 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 [2022-11-21 17:26:04,607 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] [2022-11-21 17:26:04,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-21 17:26:04,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 28. [2022-11-21 17:26:04,650 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) [2022-11-21 17:26:04,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2022-11-21 17:26:04,654 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 6 [2022-11-21 17:26:04,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:26:04,655 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-11-21 17:26:04,656 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) [2022-11-21 17:26:04,656 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2022-11-21 17:26:04,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 17:26:04,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:26:04,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:26:04,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:26:04,659 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)] === [2022-11-21 17:26:04,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:26:04,660 INFO L85 PathProgramCache]: Analyzing trace with hash 235011595, now seen corresponding path program 1 times [2022-11-21 17:26:04,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:26:04,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124223599] [2022-11-21 17:26:04,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:26:04,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:26:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:04,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:26:04,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:26:04,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124223599] [2022-11-21 17:26:04,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124223599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:26:04,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:26:04,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:26:04,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459908388] [2022-11-21 17:26:04,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:26:04,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:26:04,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:26:04,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:26:04,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:26:04,781 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) [2022-11-21 17:26:04,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:26:04,853 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2022-11-21 17:26:04,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:26:04,854 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 [2022-11-21 17:26:04,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:26:04,855 INFO L225 Difference]: With dead ends: 59 [2022-11-21 17:26:04,855 INFO L226 Difference]: Without dead ends: 51 [2022-11-21 17:26:04,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:26:04,858 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 17 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:26:04,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 48 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:26:04,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-21 17:26:04,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 34. [2022-11-21 17:26:04,864 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) [2022-11-21 17:26:04,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-11-21 17:26:04,867 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 8 [2022-11-21 17:26:04,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:26:04,867 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-11-21 17:26:04,868 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) [2022-11-21 17:26:04,869 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-11-21 17:26:04,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 17:26:04,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:26:04,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:26:04,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:26:04,872 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)] === [2022-11-21 17:26:04,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:26:04,877 INFO L85 PathProgramCache]: Analyzing trace with hash 269484748, now seen corresponding path program 1 times [2022-11-21 17:26:04,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:26:04,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137250347] [2022-11-21 17:26:04,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:26:04,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:26:04,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:04,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:26:04,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:26:04,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137250347] [2022-11-21 17:26:04,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137250347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:26:04,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:26:04,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:26:04,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937930962] [2022-11-21 17:26:04,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:26:04,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:26:04,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:26:04,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:26:04,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:26:04,989 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 4 states, 4 states have (on average 2.0) 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) [2022-11-21 17:26:05,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:26:05,043 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2022-11-21 17:26:05,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:26:05,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) 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 [2022-11-21 17:26:05,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:26:05,045 INFO L225 Difference]: With dead ends: 82 [2022-11-21 17:26:05,045 INFO L226 Difference]: Without dead ends: 51 [2022-11-21 17:26:05,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:26:05,047 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 25 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:26:05,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 48 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:26:05,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-21 17:26:05,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 35. [2022-11-21 17:26:05,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 34 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) [2022-11-21 17:26:05,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2022-11-21 17:26:05,055 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 8 [2022-11-21 17:26:05,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:26:05,055 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2022-11-21 17:26:05,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) 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) [2022-11-21 17:26:05,056 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-11-21 17:26:05,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 17:26:05,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:26:05,057 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-21 17:26:05,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:26:05,057 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)] === [2022-11-21 17:26:05,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:26:05,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1479828344, now seen corresponding path program 1 times [2022-11-21 17:26:05,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:26:05,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614886480] [2022-11-21 17:26:05,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:26:05,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:26:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:05,225 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:26:05,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:26:05,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614886480] [2022-11-21 17:26:05,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614886480] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:26:05,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487441353] [2022-11-21 17:26:05,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:26:05,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:26:05,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:26:05,235 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:26:05,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 17:26:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:05,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 17:26:05,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:26:05,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:26:05,488 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:26:05,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487441353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:26:05,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:26:05,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2022-11-21 17:26:05,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515497273] [2022-11-21 17:26:05,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:26:05,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:26:05,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:26:05,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:26:05,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:26:05,491 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:05,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:26:05,626 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2022-11-21 17:26:05,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:26:05,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-21 17:26:05,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:26:05,628 INFO L225 Difference]: With dead ends: 91 [2022-11-21 17:26:05,628 INFO L226 Difference]: Without dead ends: 60 [2022-11-21 17:26:05,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:26:05,645 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 44 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:26:05,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 75 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:26:05,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-21 17:26:05,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 39. [2022-11-21 17:26:05,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.2727272727272727) 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) [2022-11-21 17:26:05,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2022-11-21 17:26:05,653 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 10 [2022-11-21 17:26:05,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:26:05,653 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2022-11-21 17:26:05,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:05,653 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2022-11-21 17:26:05,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 17:26:05,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:26:05,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:26:05,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-21 17:26:05,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:26:05,857 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 17:26:05,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:26:05,858 INFO L85 PathProgramCache]: Analyzing trace with hash -482462648, now seen corresponding path program 1 times [2022-11-21 17:26:05,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:26:05,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988505529] [2022-11-21 17:26:05,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:26:05,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:26:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:05,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 17:26:05,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:26:05,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988505529] [2022-11-21 17:26:05,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988505529] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:26:05,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:26:05,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:26:05,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455060941] [2022-11-21 17:26:05,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:26:05,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:26:05,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:26:05,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:26:05,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:26:05,978 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:06,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:26:06,034 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2022-11-21 17:26:06,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:26:06,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-21 17:26:06,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:26:06,036 INFO L225 Difference]: With dead ends: 46 [2022-11-21 17:26:06,036 INFO L226 Difference]: Without dead ends: 44 [2022-11-21 17:26:06,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:26:06,037 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 7 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:26:06,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 48 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:26:06,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-21 17:26:06,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-21 17:26:06,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 38 states have (on average 1.236842105263158) internal successors, (47), 43 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:06,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2022-11-21 17:26:06,044 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 12 [2022-11-21 17:26:06,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:26:06,044 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2022-11-21 17:26:06,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:06,045 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2022-11-21 17:26:06,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-21 17:26:06,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:26:06,045 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:26:06,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 17:26:06,046 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)] === [2022-11-21 17:26:06,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:26:06,047 INFO L85 PathProgramCache]: Analyzing trace with hash 2041874948, now seen corresponding path program 1 times [2022-11-21 17:26:06,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:26:06,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586553778] [2022-11-21 17:26:06,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:26:06,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:26:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:06,178 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 17:26:06,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:26:06,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586553778] [2022-11-21 17:26:06,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586553778] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:26:06,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534377762] [2022-11-21 17:26:06,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:26:06,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:26:06,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:26:06,181 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:26:06,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 17:26:06,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:06,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 17:26:06,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:26:06,339 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 17:26:06,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:26:06,447 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 17:26:06,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534377762] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:26:06,450 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:26:06,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-21 17:26:06,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762943785] [2022-11-21 17:26:06,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:26:06,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 17:26:06,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:26:06,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 17:26:06,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-21 17:26:06,456 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:06,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:26:06,593 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2022-11-21 17:26:06,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:26:06,594 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-21 17:26:06,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:26:06,596 INFO L225 Difference]: With dead ends: 74 [2022-11-21 17:26:06,596 INFO L226 Difference]: Without dead ends: 43 [2022-11-21 17:26:06,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-11-21 17:26:06,602 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 50 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:26:06,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 78 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:26:06,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-21 17:26:06,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2022-11-21 17:26:06,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 41 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:06,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2022-11-21 17:26:06,626 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 19 [2022-11-21 17:26:06,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:26:06,627 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2022-11-21 17:26:06,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:06,628 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2022-11-21 17:26:06,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-21 17:26:06,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:26:06,630 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:26:06,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 17:26:06,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:26:06,844 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)] === [2022-11-21 17:26:06,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:26:06,845 INFO L85 PathProgramCache]: Analyzing trace with hash 980104640, now seen corresponding path program 1 times [2022-11-21 17:26:06,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:26:06,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956297438] [2022-11-21 17:26:06,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:26:06,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:26:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:06,973 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 17:26:06,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:26:06,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956297438] [2022-11-21 17:26:06,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956297438] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:26:06,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149860365] [2022-11-21 17:26:06,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:26:06,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:26:06,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:26:06,975 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:26:06,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 17:26:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:07,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 17:26:07,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:26:07,068 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 17:26:07,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:26:07,109 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 17:26:07,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149860365] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:26:07,109 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:26:07,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-21 17:26:07,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676190191] [2022-11-21 17:26:07,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:26:07,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 17:26:07,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:26:07,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 17:26:07,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-21 17:26:07,112 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:07,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:26:07,237 INFO L93 Difference]: Finished difference Result 118 states and 128 transitions. [2022-11-21 17:26:07,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 17:26:07,238 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-21 17:26:07,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:26:07,240 INFO L225 Difference]: With dead ends: 118 [2022-11-21 17:26:07,240 INFO L226 Difference]: Without dead ends: 117 [2022-11-21 17:26:07,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-11-21 17:26:07,241 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 84 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:26:07,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 149 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:26:07,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-11-21 17:26:07,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 53. [2022-11-21 17:26:07,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.25) internal successors, (60), 52 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:07,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2022-11-21 17:26:07,249 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 21 [2022-11-21 17:26:07,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:26:07,250 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2022-11-21 17:26:07,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:07,250 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2022-11-21 17:26:07,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-21 17:26:07,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:26:07,251 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:26:07,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 17:26:07,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:26:07,457 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 17:26:07,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:26:07,458 INFO L85 PathProgramCache]: Analyzing trace with hash 318472822, now seen corresponding path program 1 times [2022-11-21 17:26:07,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:26:07,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559333557] [2022-11-21 17:26:07,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:26:07,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:26:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:07,585 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 17:26:07,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:26:07,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559333557] [2022-11-21 17:26:07,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559333557] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:26:07,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280096598] [2022-11-21 17:26:07,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:26:07,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:26:07,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:26:07,591 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:26:07,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 17:26:07,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:07,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 17:26:07,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:26:07,706 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 17:26:07,706 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:26:07,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280096598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:26:07,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:26:07,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-21 17:26:07,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761117497] [2022-11-21 17:26:07,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:26:07,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:26:07,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:26:07,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:26:07,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-21 17:26:07,709 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:07,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:26:07,753 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2022-11-21 17:26:07,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:26:07,753 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-21 17:26:07,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:26:07,754 INFO L225 Difference]: With dead ends: 53 [2022-11-21 17:26:07,754 INFO L226 Difference]: Without dead ends: 52 [2022-11-21 17:26:07,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:26:07,756 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 40 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:26:07,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 36 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:26:07,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-21 17:26:07,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-21 17:26:07,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.1875) internal successors, (57), 51 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:07,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2022-11-21 17:26:07,767 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 22 [2022-11-21 17:26:07,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:26:07,768 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2022-11-21 17:26:07,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:07,768 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2022-11-21 17:26:07,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-21 17:26:07,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:26:07,769 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-21 17:26:07,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 17:26:07,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:26:07,975 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 17:26:07,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:26:07,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1281122176, now seen corresponding path program 2 times [2022-11-21 17:26:07,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:26:07,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336774167] [2022-11-21 17:26:07,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:26:07,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:26:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:08,113 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 17:26:08,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:26:08,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336774167] [2022-11-21 17:26:08,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336774167] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:26:08,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857338816] [2022-11-21 17:26:08,114 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 17:26:08,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:26:08,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:26:08,116 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:26:08,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 17:26:08,183 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-21 17:26:08,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:26:08,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 17:26:08,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:26:08,256 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 17:26:08,256 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:26:08,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857338816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:26:08,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:26:08,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2022-11-21 17:26:08,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403945580] [2022-11-21 17:26:08,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:26:08,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:26:08,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:26:08,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:26:08,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:26:08,258 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 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) [2022-11-21 17:26:08,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:26:08,384 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2022-11-21 17:26:08,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 17:26:08,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-21 17:26:08,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:26:08,385 INFO L225 Difference]: With dead ends: 52 [2022-11-21 17:26:08,385 INFO L226 Difference]: Without dead ends: 51 [2022-11-21 17:26:08,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2022-11-21 17:26:08,386 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 33 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:26:08,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 49 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:26:08,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-21 17:26:08,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2022-11-21 17:26:08,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 46 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:08,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-11-21 17:26:08,392 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 23 [2022-11-21 17:26:08,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:26:08,392 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-11-21 17:26:08,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 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) [2022-11-21 17:26:08,393 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-11-21 17:26:08,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 17:26:08,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:26:08,393 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:26:08,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-21 17:26:08,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:26:08,598 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 17:26:08,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:26:08,599 INFO L85 PathProgramCache]: Analyzing trace with hash -870291871, now seen corresponding path program 1 times [2022-11-21 17:26:08,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:26:08,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593748002] [2022-11-21 17:26:08,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:26:08,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:26:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:08,667 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 17:26:08,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:26:08,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593748002] [2022-11-21 17:26:08,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593748002] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:26:08,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831242834] [2022-11-21 17:26:08,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:26:08,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:26:08,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:26:08,669 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:26:08,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 17:26:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:08,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 17:26:08,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:26:08,786 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 17:26:08,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:26:08,831 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 17:26:08,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831242834] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:26:08,831 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:26:08,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-21 17:26:08,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384717030] [2022-11-21 17:26:08,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:26:08,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 17:26:08,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:26:08,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 17:26:08,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-21 17:26:08,836 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:08,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:26:08,932 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2022-11-21 17:26:08,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 17:26:08,933 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-21 17:26:08,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:26:08,935 INFO L225 Difference]: With dead ends: 59 [2022-11-21 17:26:08,935 INFO L226 Difference]: Without dead ends: 58 [2022-11-21 17:26:08,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2022-11-21 17:26:08,936 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 35 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:26:08,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 64 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:26:08,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-21 17:26:08,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 46. [2022-11-21 17:26:08,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 45 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:08,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2022-11-21 17:26:08,949 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 24 [2022-11-21 17:26:08,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:26:08,951 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2022-11-21 17:26:08,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:08,951 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2022-11-21 17:26:08,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-21 17:26:08,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:26:08,955 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:26:08,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-21 17:26:09,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-21 17:26:09,161 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)] === [2022-11-21 17:26:09,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:26:09,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1209244134, now seen corresponding path program 1 times [2022-11-21 17:26:09,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:26:09,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324684046] [2022-11-21 17:26:09,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:26:09,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:26:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:09,277 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 17:26:09,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:26:09,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324684046] [2022-11-21 17:26:09,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324684046] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:26:09,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396644101] [2022-11-21 17:26:09,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:26:09,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:26:09,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:26:09,279 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:26:09,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-21 17:26:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:09,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 17:26:09,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:26:09,379 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 17:26:09,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:26:09,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396644101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:26:09,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:26:09,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-21 17:26:09,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716365896] [2022-11-21 17:26:09,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:26:09,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:26:09,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:26:09,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:26:09,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-21 17:26:09,383 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:09,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:26:09,439 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2022-11-21 17:26:09,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:26:09,439 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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 25 [2022-11-21 17:26:09,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:26:09,441 INFO L225 Difference]: With dead ends: 51 [2022-11-21 17:26:09,441 INFO L226 Difference]: Without dead ends: 39 [2022-11-21 17:26:09,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:26:09,442 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 14 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:26:09,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 41 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:26:09,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-21 17:26:09,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2022-11-21 17:26:09,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 33 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:09,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2022-11-21 17:26:09,450 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 25 [2022-11-21 17:26:09,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:26:09,450 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2022-11-21 17:26:09,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:09,450 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2022-11-21 17:26:09,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-21 17:26:09,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:26:09,454 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:26:09,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-21 17:26:09,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:26:09,665 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-21 17:26:09,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:26:09,666 INFO L85 PathProgramCache]: Analyzing trace with hash -2146136268, now seen corresponding path program 2 times [2022-11-21 17:26:09,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:26:09,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937498454] [2022-11-21 17:26:09,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:26:09,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:26:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:26:09,856 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-21 17:26:09,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:26:09,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937498454] [2022-11-21 17:26:09,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937498454] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:26:09,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007252894] [2022-11-21 17:26:09,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 17:26:09,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:26:09,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:26:09,859 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:26:09,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-21 17:26:09,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 17:26:09,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:26:09,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 17:26:09,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:26:10,011 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-21 17:26:10,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:26:10,126 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-21 17:26:10,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007252894] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:26:10,127 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:26:10,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-11-21 17:26:10,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764243544] [2022-11-21 17:26:10,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:26:10,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-21 17:26:10,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:26:10,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-21 17:26:10,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-21 17:26:10,129 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:10,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:26:10,477 INFO L93 Difference]: Finished difference Result 71 states and 80 transitions. [2022-11-21 17:26:10,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-21 17:26:10,478 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 0 states have call successors, (0), 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 33 [2022-11-21 17:26:10,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:26:10,478 INFO L225 Difference]: With dead ends: 71 [2022-11-21 17:26:10,478 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 17:26:10,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=287, Invalid=835, Unknown=0, NotChecked=0, Total=1122 [2022-11-21 17:26:10,480 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 128 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:26:10,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 16 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:26:10,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 17:26:10,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 17:26:10,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:10,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 17:26:10,481 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2022-11-21 17:26:10,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:26:10,481 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 17:26:10,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:26:10,482 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 17:26:10,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 17:26:10,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-21 17:26:10,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-21 17:26:10,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-21 17:26:10,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-21 17:26:10,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-21 17:26:10,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-21 17:26:10,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-21 17:26:10,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:26:10,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 17:26:11,079 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-11-21 17:26:11,080 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2022-11-21 17:26:11,080 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 17:26:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-11-21 17:26:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 17:26:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-11-21 17:26:11,080 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 17:26:11,081 INFO L895 garLoopResultBuilder]: At program point L20(lines 14 21) the Hoare annotation is: (and (let ((.cse0 (+ |ULTIMATE.start_main_~i~1#1| 1))) (let ((.cse1 (<= |ULTIMATE.start_main_~i~1#1| |ULTIMATE.start_foo_~size#1|)) (.cse2 (<= .cse0 |ULTIMATE.start_foo_#res#1|))) (or (and (<= .cse0 |ULTIMATE.start_foo_~i~0#1|) .cse1 .cse2 (<= 1 |ULTIMATE.start_main_~i~1#1|)) (and (= |ULTIMATE.start_main_~i~1#1| 0) .cse1 (<= |ULTIMATE.start_foo_~i~0#1| 1) .cse2 (<= 1 |ULTIMATE.start_foo_~i~0#1|))))) (< |ULTIMATE.start_foo_~size#1| 2147483647) (< |ULTIMATE.start_main_~i~1#1| 2147483646)) [2022-11-21 17:26:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-11-21 17:26:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 17:26:11,081 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-11-21 17:26:11,081 INFO L899 garLoopResultBuilder]: For program point L29-2(lines 29 33) no Hoare annotation was computed. [2022-11-21 17:26:11,081 INFO L899 garLoopResultBuilder]: For program point L29-3(line 29) no Hoare annotation was computed. [2022-11-21 17:26:11,081 INFO L899 garLoopResultBuilder]: For program point L29-4(line 29) no Hoare annotation was computed. [2022-11-21 17:26:11,081 INFO L895 garLoopResultBuilder]: At program point L29-5(lines 29 33) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_foo_~i~0#1|))) (or (and (< |ULTIMATE.start_main_~i~1#1| 2147483647) (<= 1 |ULTIMATE.start_main_~i~1#1|) .cse0) (and (= |ULTIMATE.start_main_~i~1#1| 0) .cse0))) [2022-11-21 17:26:11,081 INFO L899 garLoopResultBuilder]: For program point L29-6(lines 29 33) no Hoare annotation was computed. [2022-11-21 17:26:11,082 INFO L899 garLoopResultBuilder]: For program point L17-2(lines 17 19) no Hoare annotation was computed. [2022-11-21 17:26:11,082 INFO L899 garLoopResultBuilder]: For program point L17-3(line 17) no Hoare annotation was computed. [2022-11-21 17:26:11,082 INFO L899 garLoopResultBuilder]: For program point L17-4(line 17) no Hoare annotation was computed. [2022-11-21 17:26:11,082 INFO L895 garLoopResultBuilder]: At program point L17-5(lines 17 19) the Hoare annotation is: (let ((.cse3 (<= 1 |ULTIMATE.start_main_~i~1#1|)) (.cse1 (= |ULTIMATE.start_foo_~i~0#1| 0)) (.cse5 (< |ULTIMATE.start_main_~i~1#1| 2147483646)) (.cse0 (= |ULTIMATE.start_main_~i~1#1| 0)) (.cse2 (<= |ULTIMATE.start_main_~i~1#1| |ULTIMATE.start_foo_~size#1|)) (.cse4 (<= 1 |ULTIMATE.start_foo_~i~0#1|))) (or (and .cse0 (= |ULTIMATE.start_foo_~size#1| 0) .cse1) (and .cse2 (< |ULTIMATE.start_foo_~size#1| 2147483647) .cse3 .cse4 .cse5) (and .cse3 .cse1 (= |ULTIMATE.start_main_~i~1#1| |ULTIMATE.start_foo_~size#1|) .cse5) (and .cse0 .cse2 (<= |ULTIMATE.start_foo_~i~0#1| 1) .cse4 (<= |ULTIMATE.start_foo_~size#1| 0)))) [2022-11-21 17:26:11,082 INFO L899 garLoopResultBuilder]: For program point L17-6(lines 17 19) no Hoare annotation was computed. [2022-11-21 17:26:11,082 INFO L902 garLoopResultBuilder]: At program point L34(lines 23 35) the Hoare annotation is: true [2022-11-21 17:26:11,082 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-11-21 17:26:11,082 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 32) no Hoare annotation was computed. [2022-11-21 17:26:11,082 INFO L899 garLoopResultBuilder]: For program point L26-2(lines 26 28) no Hoare annotation was computed. [2022-11-21 17:26:11,082 INFO L899 garLoopResultBuilder]: For program point L26-3(line 26) no Hoare annotation was computed. [2022-11-21 17:26:11,083 INFO L899 garLoopResultBuilder]: For program point L26-4(line 26) no Hoare annotation was computed. [2022-11-21 17:26:11,083 INFO L895 garLoopResultBuilder]: At program point L26-5(lines 26 28) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~1#1| 0) (and (< |ULTIMATE.start_main_~i~1#1| 2147483647) (< |ULTIMATE.start_foo_~size#1| 2147483647) (<= 1 |ULTIMATE.start_main_~i~1#1|) (<= 1 |ULTIMATE.start_foo_~i~0#1|))) [2022-11-21 17:26:11,083 INFO L899 garLoopResultBuilder]: For program point L26-6(lines 26 28) no Hoare annotation was computed. [2022-11-21 17:26:11,086 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:26:11,093 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:26:11,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:26:11 BoogieIcfgContainer [2022-11-21 17:26:11,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:26:11,122 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:26:11,122 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:26:11,122 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:26:11,122 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:26:04" (3/4) ... [2022-11-21 17:26:11,126 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 17:26:11,138 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-21 17:26:11,138 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 17:26:11,138 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 17:26:11,138 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 17:26:11,175 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((i + 1 <= i && i <= size) && i + 1 <= \result) && 1 <= i) || ((((i == 0 && i <= size) && i <= 1) && i + 1 <= \result) && 1 <= i)) && size < 2147483647) && i < 2147483646 [2022-11-21 17:26:11,190 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:26:11,190 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:26:11,191 INFO L158 Benchmark]: Toolchain (without parser) took 8001.35ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 153.5MB in the beginning and 165.5MB in the end (delta: -12.0MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2022-11-21 17:26:11,191 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 134.2MB. Free memory was 106.3MB in the beginning and 106.1MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:26:11,191 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.35ms. Allocated memory is still 182.5MB. Free memory was 153.4MB in the beginning and 149.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2022-11-21 17:26:11,192 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.28ms. Allocated memory is still 182.5MB. Free memory was 149.4MB in the beginning and 147.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:26:11,192 INFO L158 Benchmark]: Boogie Preprocessor took 22.67ms. Allocated memory is still 182.5MB. Free memory was 147.3MB in the beginning and 146.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:26:11,193 INFO L158 Benchmark]: RCFGBuilder took 456.08ms. Allocated memory is still 182.5MB. Free memory was 146.1MB in the beginning and 145.1MB in the end (delta: 1.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-21 17:26:11,193 INFO L158 Benchmark]: TraceAbstraction took 7114.37ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 145.1MB in the beginning and 167.6MB in the end (delta: -22.6MB). Peak memory consumption was 104.8MB. Max. memory is 16.1GB. [2022-11-21 17:26:11,194 INFO L158 Benchmark]: Witness Printer took 68.58ms. Allocated memory is still 220.2MB. Free memory was 167.6MB in the beginning and 165.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:26:11,197 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 134.2MB. Free memory was 106.3MB in the beginning and 106.1MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.35ms. Allocated memory is still 182.5MB. Free memory was 153.4MB in the beginning and 149.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.28ms. Allocated memory is still 182.5MB. Free memory was 149.4MB in the beginning and 147.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.67ms. Allocated memory is still 182.5MB. Free memory was 147.3MB in the beginning and 146.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 456.08ms. Allocated memory is still 182.5MB. Free memory was 146.1MB in the beginning and 145.1MB in the end (delta: 1.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 7114.37ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 145.1MB in the beginning and 167.6MB in the end (delta: -22.6MB). Peak memory consumption was 104.8MB. Max. memory is 16.1GB. * Witness Printer took 68.58ms. Allocated memory is still 220.2MB. Free memory was 167.6MB in the beginning and 165.5MB 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: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: 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: 7.0s, OverallIterations: 12, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 503 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 503 mSDsluCounter, 758 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 553 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 647 IncrementalHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 205 mSDtfsCounter, 647 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 376 GetRequests, 241 SyntacticMatches, 1 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=7, InterpolantAutomatonStates: 101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 156 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 29 NumberOfFragments, 135 HoareAnnotationTreeSize, 5 FomulaSimplifications, 710 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 5 FomulaSimplificationsInter, 950 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 388 NumberOfCodeBlocks, 373 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 461 ConstructedInterpolants, 0 QuantifiedInterpolants, 1120 SizeOfPredicates, 29 NumberOfNonLiveVariables, 778 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 24 InterpolantComputations, 8 PerfectInterpolantSequences, 205/351 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: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: i == 0 || (((i < 2147483647 && size < 2147483647) && 1 <= i) && 1 <= i) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((i + 1 <= i && i <= size) && i + 1 <= \result) && 1 <= i) || ((((i == 0 && i <= size) && i <= 1) && i + 1 <= \result) && 1 <= i)) && size < 2147483647) && i < 2147483646 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((i == 0 && size == 0) && i == 0) || ((((i <= size && size < 2147483647) && 1 <= i) && 1 <= i) && i < 2147483646)) || (((1 <= i && i == 0) && i == size) && i < 2147483646)) || ((((i == 0 && i <= size) && i <= 1) && 1 <= i) && size <= 0) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((i < 2147483647 && 1 <= i) && 1 <= i) || (i == 0 && 1 <= i) RESULT: Ultimate proved your program to be correct! [2022-11-21 17:26:11,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ced686a-a956-49fe-bb82-3908410ed55b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE