./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers1-2.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_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/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_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/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_65777d07-a643-4d64-ac40-3a7784e0368f/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 1fb17cc8fe5a0faedd7397d9dad19c9fd18716037f6fbcc01ca4a50f1481e06c --- 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 17:11:49,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:11:49,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:11:49,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:11:49,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:11:49,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:11:49,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:11:49,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:11:49,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:11:49,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:11:49,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:11:49,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:11:49,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:11:49,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:11:49,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:11:49,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:11:49,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:11:49,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:11:49,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:11:49,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:11:49,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:11:49,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:11:49,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:11:49,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:11:49,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:11:49,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:11:49,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:11:49,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:11:49,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:11:49,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:11:49,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:11:49,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:11:49,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:11:49,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:11:49,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:11:49,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:11:49,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:11:49,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:11:49,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:11:49,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:11:49,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:11:49,718 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 17:11:49,739 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:11:49,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:11:49,740 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:11:49,740 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:11:49,741 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:11:49,741 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:11:49,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:11:49,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:11:49,743 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:11:49,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:11:49,743 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:11:49,743 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:11:49,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:11:49,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:11:49,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:11:49,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:11:49,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:11:49,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:11:49,745 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 17:11:49,745 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:11:49,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:11:49,746 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:11:49,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:11:49,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:11:49,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:11:49,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:11:49,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:11:49,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:11:49,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:11:49,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:11:49,748 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:11:49,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:11:49,748 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:11:49,749 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:11:49,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:11:49,749 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_65777d07-a643-4d64-ac40-3a7784e0368f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fb17cc8fe5a0faedd7397d9dad19c9fd18716037f6fbcc01ca4a50f1481e06c [2022-11-21 17:11:49,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:11:50,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:11:50,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:11:50,026 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:11:50,027 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:11:50,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/memsafety-ext3/getNumbers1-2.c [2022-11-21 17:11:53,079 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:11:53,300 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:11:53,301 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/sv-benchmarks/c/memsafety-ext3/getNumbers1-2.c [2022-11-21 17:11:53,318 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/data/e2e5f2cf7/cd53bee8289c4f2aaffe745ac4f954b0/FLAG7531621a8 [2022-11-21 17:11:53,333 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/data/e2e5f2cf7/cd53bee8289c4f2aaffe745ac4f954b0 [2022-11-21 17:11:53,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:11:53,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:11:53,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:11:53,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:11:53,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:11:53,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:11:53" (1/1) ... [2022-11-21 17:11:53,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a27db30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:53, skipping insertion in model container [2022-11-21 17:11:53,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:11:53" (1/1) ... [2022-11-21 17:11:53,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:11:53,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:11:53,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:11:53,519 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:11:53,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:11:53,545 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:11:53,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:53 WrapperNode [2022-11-21 17:11:53,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:11:53,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:11:53,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:11:53,548 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:11:53,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:53" (1/1) ... [2022-11-21 17:11:53,565 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:53" (1/1) ... [2022-11-21 17:11:53,585 INFO L138 Inliner]: procedures = 9, calls = 6, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2022-11-21 17:11:53,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:11:53,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:11:53,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:11:53,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:11:53,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:53" (1/1) ... [2022-11-21 17:11:53,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:53" (1/1) ... [2022-11-21 17:11:53,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:53" (1/1) ... [2022-11-21 17:11:53,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:53" (1/1) ... [2022-11-21 17:11:53,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:53" (1/1) ... [2022-11-21 17:11:53,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:53" (1/1) ... [2022-11-21 17:11:53,626 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:53" (1/1) ... [2022-11-21 17:11:53,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:53" (1/1) ... [2022-11-21 17:11:53,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:11:53,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:11:53,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:11:53,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:11:53,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:53" (1/1) ... [2022-11-21 17:11:53,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:11:53,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:11:53,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:11:53,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:11:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:11:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:11:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:11:53,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:11:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:11:53,771 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:11:53,774 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:11:53,895 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:11:53,901 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:11:53,902 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 17:11:53,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:11:53 BoogieIcfgContainer [2022-11-21 17:11:53,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:11:53,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:11:53,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:11:53,912 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:11:53,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:11:53" (1/3) ... [2022-11-21 17:11:53,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8980f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:11:53, skipping insertion in model container [2022-11-21 17:11:53,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:53" (2/3) ... [2022-11-21 17:11:53,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8980f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:11:53, skipping insertion in model container [2022-11-21 17:11:53,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:11:53" (3/3) ... [2022-11-21 17:11:53,915 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers1-2.c [2022-11-21 17:11:53,936 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:11:53,936 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-21 17:11:53,989 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:11:53,996 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;@74c47a01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:11:53,996 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-21 17:11:54,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 18 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 17:11:54,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 17:11:54,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:11:54,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-21 17:11:54,009 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 17:11:54,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:11:54,015 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2022-11-21 17:11:54,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:11:54,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181187648] [2022-11-21 17:11:54,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:54,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:11:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:54,226 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 17:11:54,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:11:54,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181187648] [2022-11-21 17:11:54,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181187648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:11:54,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:11:54,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:11:54,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153812306] [2022-11-21 17:11:54,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:11:54,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:11:54,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:11:54,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:11:54,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:11:54,276 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 18 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 17:11:54,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:11:54,314 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2022-11-21 17:11:54,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:11:54,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2022-11-21 17:11:54,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:11:54,331 INFO L225 Difference]: With dead ends: 36 [2022-11-21 17:11:54,331 INFO L226 Difference]: Without dead ends: 18 [2022-11-21 17:11:54,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:11:54,363 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:11:54,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 30 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:11:54,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-21 17:11:54,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-21 17:11:54,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:54,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-21 17:11:54,404 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 4 [2022-11-21 17:11:54,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:11:54,405 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-21 17:11:54,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 17:11:54,405 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-21 17:11:54,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 17:11:54,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:11:54,406 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-11-21 17:11:54,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:11:54,407 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 17:11:54,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:11:54,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1809705867, now seen corresponding path program 1 times [2022-11-21 17:11:54,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:11:54,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218363936] [2022-11-21 17:11:54,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:54,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:11:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:54,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 17:11:54,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:11:54,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218363936] [2022-11-21 17:11:54,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218363936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:11:54,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:11:54,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:11:54,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960203709] [2022-11-21 17:11:54,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:11:54,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:11:54,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:11:54,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:11:54,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:11:54,470 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:54,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:11:54,487 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2022-11-21 17:11:54,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:11:54,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-21 17:11:54,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:11:54,489 INFO L225 Difference]: With dead ends: 18 [2022-11-21 17:11:54,489 INFO L226 Difference]: Without dead ends: 17 [2022-11-21 17:11:54,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:11:54,491 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:11:54,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 20 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:11:54,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-21 17:11:54,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-21 17:11:54,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:54,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-11-21 17:11:54,496 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2022-11-21 17:11:54,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:11:54,497 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-11-21 17:11:54,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:54,497 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-11-21 17:11:54,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 17:11:54,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:11:54,498 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-11-21 17:11:54,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:11:54,498 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 17:11:54,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:11:54,499 INFO L85 PathProgramCache]: Analyzing trace with hash 266307074, now seen corresponding path program 1 times [2022-11-21 17:11:54,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:11:54,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542238921] [2022-11-21 17:11:54,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:54,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:11:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:54,588 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:11:54,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:11:54,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542238921] [2022-11-21 17:11:54,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542238921] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:11:54,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093097836] [2022-11-21 17:11:54,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:54,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:11:54,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:11:54,594 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:11:54,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 17:11:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:54,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 17:11:54,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:11:54,787 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 17:11:54,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:11:54,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093097836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:11:54,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:11:54,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-21 17:11:54,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566395509] [2022-11-21 17:11:54,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:11:54,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:11:54,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:11:54,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:11:54,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:11:54,798 INFO L87 Difference]: Start difference. First operand 17 states and 18 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 17:11:54,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:11:54,835 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-11-21 17:11:54,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:11:54,836 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 17:11:54,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:11:54,836 INFO L225 Difference]: With dead ends: 17 [2022-11-21 17:11:54,837 INFO L226 Difference]: Without dead ends: 16 [2022-11-21 17:11:54,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 17:11:54,839 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 18 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:11:54,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 11 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:11:54,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-21 17:11:54,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2022-11-21 17:11:54,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:54,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-11-21 17:11:54,844 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 8 [2022-11-21 17:11:54,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:11:54,844 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-11-21 17:11:54,845 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 17:11:54,845 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-11-21 17:11:54,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 17:11:54,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:11:54,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:11:54,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 17:11:55,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:11:55,052 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 17:11:55,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:11:55,052 INFO L85 PathProgramCache]: Analyzing trace with hash 697966045, now seen corresponding path program 1 times [2022-11-21 17:11:55,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:11:55,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450250125] [2022-11-21 17:11:55,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:55,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:11:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:55,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:11:55,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:11:55,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450250125] [2022-11-21 17:11:55,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450250125] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:11:55,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539361158] [2022-11-21 17:11:55,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:55,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:11:55,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:11:55,146 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:11:55,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 17:11:55,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:55,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 17:11:55,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:11:55,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:11:55,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:11:55,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:11:55,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539361158] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:11:55,295 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:11:55,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-21 17:11:55,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173243998] [2022-11-21 17:11:55,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:11:55,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:11:55,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:11:55,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:11:55,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:11:55,298 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:55,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:11:55,351 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-11-21 17:11:55,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:11:55,352 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-21 17:11:55,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:11:55,353 INFO L225 Difference]: With dead ends: 31 [2022-11-21 17:11:55,353 INFO L226 Difference]: Without dead ends: 23 [2022-11-21 17:11:55,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:11:55,354 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 8 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:11:55,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 29 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:11:55,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-21 17:11:55,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-21 17:11:55,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:55,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2022-11-21 17:11:55,360 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 11 [2022-11-21 17:11:55,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:11:55,361 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2022-11-21 17:11:55,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:55,361 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-11-21 17:11:55,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-21 17:11:55,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:11:55,362 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:11:55,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 17:11:55,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:11:55,573 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 17:11:55,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:11:55,573 INFO L85 PathProgramCache]: Analyzing trace with hash 8411671, now seen corresponding path program 2 times [2022-11-21 17:11:55,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:11:55,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625605317] [2022-11-21 17:11:55,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:55,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:11:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:55,743 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-21 17:11:55,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:11:55,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625605317] [2022-11-21 17:11:55,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625605317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:11:55,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:11:55,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:11:55,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458978971] [2022-11-21 17:11:55,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:11:55,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:11:55,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:11:55,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:11:55,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:11:55,751 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:55,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:11:55,796 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2022-11-21 17:11:55,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:11:55,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-21 17:11:55,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:11:55,800 INFO L225 Difference]: With dead ends: 29 [2022-11-21 17:11:55,800 INFO L226 Difference]: Without dead ends: 27 [2022-11-21 17:11:55,801 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 17:11:55,803 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:11:55,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 26 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:11:55,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-21 17:11:55,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-21 17:11:55,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.12) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 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 17:11:55,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2022-11-21 17:11:55,818 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 20 [2022-11-21 17:11:55,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:11:55,820 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2022-11-21 17:11:55,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:55,821 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2022-11-21 17:11:55,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 17:11:55,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:11:55,822 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:11:55,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 17:11:55,822 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 17:11:55,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:11:55,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1239029805, now seen corresponding path program 1 times [2022-11-21 17:11:55,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:11:55,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000402498] [2022-11-21 17:11:55,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:55,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:11:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:55,923 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-21 17:11:55,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:11:55,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000402498] [2022-11-21 17:11:55,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000402498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:11:55,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:11:55,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:11:55,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428663690] [2022-11-21 17:11:55,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:11:55,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:11:55,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:11:55,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:11:55,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:11:55,927 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:55,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:11:55,956 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2022-11-21 17:11:55,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:11:55,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-21 17:11:55,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:11:55,957 INFO L225 Difference]: With dead ends: 27 [2022-11-21 17:11:55,958 INFO L226 Difference]: Without dead ends: 26 [2022-11-21 17:11:55,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 17:11:55,959 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 5 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:11:55,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 21 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:11:55,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-21 17:11:55,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-21 17:11:55,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.08) internal successors, (27), 25 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:55,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2022-11-21 17:11:55,964 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 24 [2022-11-21 17:11:55,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:11:55,965 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2022-11-21 17:11:55,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:55,965 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2022-11-21 17:11:55,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-21 17:11:55,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:11:55,966 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:11:55,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 17:11:55,967 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 17:11:55,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:11:55,968 INFO L85 PathProgramCache]: Analyzing trace with hash 244781774, now seen corresponding path program 1 times [2022-11-21 17:11:55,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:11:55,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823446509] [2022-11-21 17:11:55,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:55,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:11:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:56,174 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 17:11:56,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:11:56,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823446509] [2022-11-21 17:11:56,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823446509] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:11:56,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477527865] [2022-11-21 17:11:56,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:56,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:11:56,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:11:56,177 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:11:56,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 17:11:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:56,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 17:11:56,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:11:56,311 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 17:11:56,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:11:56,418 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 17:11:56,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477527865] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:11:56,419 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:11:56,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-11-21 17:11:56,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832542524] [2022-11-21 17:11:56,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:11:56,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:11:56,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:11:56,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:11:56,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:11:56,426 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 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 17:11:56,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:11:56,487 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2022-11-21 17:11:56,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 17:11:56,488 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 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 25 [2022-11-21 17:11:56,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:11:56,488 INFO L225 Difference]: With dead ends: 55 [2022-11-21 17:11:56,489 INFO L226 Difference]: Without dead ends: 44 [2022-11-21 17:11:56,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:11:56,490 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 30 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:11:56,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 34 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:11:56,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-21 17:11:56,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-21 17:11:56,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.0465116279069768) internal successors, (45), 43 states have internal predecessors, (45), 0 states have call successors, (0), 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 17:11:56,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2022-11-21 17:11:56,504 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 25 [2022-11-21 17:11:56,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:11:56,504 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2022-11-21 17:11:56,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 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 17:11:56,505 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2022-11-21 17:11:56,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-21 17:11:56,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:11:56,506 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:11:56,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 17:11:56,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:11:56,707 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 17:11:56,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:11:56,707 INFO L85 PathProgramCache]: Analyzing trace with hash -540343282, now seen corresponding path program 2 times [2022-11-21 17:11:56,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:11:56,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573223085] [2022-11-21 17:11:56,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:56,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:11:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:56,871 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-11-21 17:11:56,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:11:56,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573223085] [2022-11-21 17:11:56,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573223085] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:11:56,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728844659] [2022-11-21 17:11:56,872 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 17:11:56,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:11:56,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:11:56,874 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:11:56,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 17:11:56,957 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 17:11:56,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:11:56,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 17:11:56,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:11:56,994 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-11-21 17:11:56,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:11:56,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728844659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:11:56,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:11:56,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-21 17:11:56,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730716373] [2022-11-21 17:11:56,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:11:56,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:11:56,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:11:56,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:11:56,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-21 17:11:56,997 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:57,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:11:57,020 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2022-11-21 17:11:57,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:11:57,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-21 17:11:57,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:11:57,022 INFO L225 Difference]: With dead ends: 44 [2022-11-21 17:11:57,022 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 17:11:57,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:11:57,023 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:11:57,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 21 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:11:57,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 17:11:57,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 17:11:57,025 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 17:11:57,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 17:11:57,025 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2022-11-21 17:11:57,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:11:57,026 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 17:11:57,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:11:57,026 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 17:11:57,026 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 17:11:57,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-21 17:11:57,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-21 17:11:57,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-21 17:11:57,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-21 17:11:57,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 17:11:57,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:11:57,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 17:11:57,269 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-11-21 17:11:57,269 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 17:11:57,269 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-11-21 17:11:57,269 INFO L902 garLoopResultBuilder]: At program point L23(lines 15 24) the Hoare annotation is: true [2022-11-21 17:11:57,270 INFO L899 garLoopResultBuilder]: For program point L19-2(lines 19 21) no Hoare annotation was computed. [2022-11-21 17:11:57,270 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2022-11-21 17:11:57,270 INFO L899 garLoopResultBuilder]: For program point L19-4(line 19) no Hoare annotation was computed. [2022-11-21 17:11:57,270 INFO L895 garLoopResultBuilder]: At program point L19-5(lines 19 21) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_getNumbers_~i~0#1|) (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648))) [2022-11-21 17:11:57,270 INFO L899 garLoopResultBuilder]: For program point L19-6(lines 19 21) no Hoare annotation was computed. [2022-11-21 17:11:57,270 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 17:11:57,271 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-11-21 17:11:57,271 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-11-21 17:11:57,271 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 17:11:57,271 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 17:11:57,271 INFO L895 garLoopResultBuilder]: At program point L12(lines 4 13) the Hoare annotation is: (<= 1 |ULTIMATE.start_getNumbers_~i~0#1|) [2022-11-21 17:11:57,271 INFO L899 garLoopResultBuilder]: For program point L8-2(lines 8 10) no Hoare annotation was computed. [2022-11-21 17:11:57,271 INFO L899 garLoopResultBuilder]: For program point L8-3(line 8) no Hoare annotation was computed. [2022-11-21 17:11:57,271 INFO L895 garLoopResultBuilder]: At program point L8-4(lines 8 10) the Hoare annotation is: (or (<= 1 |ULTIMATE.start_getNumbers_~i~0#1|) (= |ULTIMATE.start_getNumbers_~i~0#1| 0)) [2022-11-21 17:11:57,272 INFO L899 garLoopResultBuilder]: For program point L8-5(lines 8 10) no Hoare annotation was computed. [2022-11-21 17:11:57,275 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2022-11-21 17:11:57,277 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:11:57,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:11:57 BoogieIcfgContainer [2022-11-21 17:11:57,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:11:57,291 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:11:57,291 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:11:57,291 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:11:57,292 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:11:53" (3/4) ... [2022-11-21 17:11:57,295 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 17:11:57,306 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-21 17:11:57,306 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-21 17:11:57,306 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 17:11:57,354 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:11:57,357 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:11:57,358 INFO L158 Benchmark]: Toolchain (without parser) took 4021.62ms. Allocated memory was 132.1MB in the beginning and 169.9MB in the end (delta: 37.7MB). Free memory was 88.5MB in the beginning and 79.3MB in the end (delta: 9.3MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2022-11-21 17:11:57,358 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:11:57,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.50ms. Allocated memory is still 132.1MB. Free memory was 88.5MB in the beginning and 78.9MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 17:11:57,359 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.53ms. Allocated memory is still 132.1MB. Free memory was 78.9MB in the beginning and 77.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:11:57,360 INFO L158 Benchmark]: Boogie Preprocessor took 41.86ms. Allocated memory is still 132.1MB. Free memory was 77.3MB in the beginning and 76.4MB in the end (delta: 881.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:11:57,360 INFO L158 Benchmark]: RCFGBuilder took 274.90ms. Allocated memory is still 132.1MB. Free memory was 76.4MB in the beginning and 66.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 17:11:57,361 INFO L158 Benchmark]: TraceAbstraction took 3383.68ms. Allocated memory was 132.1MB in the beginning and 169.9MB in the end (delta: 37.7MB). Free memory was 65.5MB in the beginning and 81.4MB in the end (delta: -15.9MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2022-11-21 17:11:57,361 INFO L158 Benchmark]: Witness Printer took 66.46ms. Allocated memory is still 169.9MB. Free memory was 81.4MB in the beginning and 79.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:11:57,363 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.50ms. Allocated memory is still 132.1MB. Free memory was 88.5MB in the beginning and 78.9MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.53ms. Allocated memory is still 132.1MB. Free memory was 78.9MB in the beginning and 77.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.86ms. Allocated memory is still 132.1MB. Free memory was 77.3MB in the beginning and 76.4MB in the end (delta: 881.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 274.90ms. Allocated memory is still 132.1MB. Free memory was 76.4MB in the beginning and 66.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3383.68ms. Allocated memory was 132.1MB in the beginning and 169.9MB in the end (delta: 37.7MB). Free memory was 65.5MB in the beginning and 81.4MB in the end (delta: -15.9MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * Witness Printer took 66.46ms. Allocated memory is still 169.9MB. Free memory was 81.4MB in the beginning and 79.3MB 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: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: 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, 19 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 192 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 107 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 110 IncrementalHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 85 mSDtfsCounter, 110 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=7, InterpolantAutomatonStates: 40, 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, 8 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 18 NumberOfFragments, 20 HoareAnnotationTreeSize, 4 FomulaSimplifications, 84 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 229 NumberOfCodeBlocks, 229 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 251 ConstructedInterpolants, 0 QuantifiedInterpolants, 425 SizeOfPredicates, 1 NumberOfNonLiveVariables, 296 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 14 InterpolantComputations, 6 PerfectInterpolantSequences, 358/434 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 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 <= i && 0 <= i + 2147483648 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 <= i || i == 0 - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1 <= i RESULT: Ultimate proved your program to be correct! [2022-11-21 17:11:57,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65777d07-a643-4d64-ac40-3a7784e0368f/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