./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/a.09_assume-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/a.09_assume-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 29282a3bf422a4239bd2757ad686eee31020f0cfb559a37401ead246e8f2c486 --- 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-4e7fbc6 [2022-11-23 13:38:59,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:38:59,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:38:59,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:38:59,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:38:59,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:38:59,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:38:59,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:38:59,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:38:59,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:38:59,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:38:59,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:38:59,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:38:59,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:38:59,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:38:59,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:38:59,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:38:59,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:38:59,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:38:59,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:38:59,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:38:59,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:38:59,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:38:59,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:38:59,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:38:59,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:38:59,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:38:59,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:38:59,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:38:59,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:38:59,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:38:59,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:38:59,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:38:59,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:38:59,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:38:59,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:38:59,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:38:59,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:38:59,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:38:59,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:38:59,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:38:59,745 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-23 13:38:59,766 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:38:59,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:38:59,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:38:59,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:38:59,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:38:59,768 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:38:59,769 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:38:59,769 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:38:59,769 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:38:59,770 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:38:59,770 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:38:59,770 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:38:59,770 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:38:59,771 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:38:59,771 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:38:59,771 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:38:59,772 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:38:59,772 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:38:59,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:38:59,773 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 13:38:59,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:38:59,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:38:59,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:38:59,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:38:59,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:38:59,775 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 13:38:59,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:38:59,775 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:38:59,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:38:59,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:38:59,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:38:59,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:38:59,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:38:59,777 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:38:59,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:38:59,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:38:59,778 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:38:59,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:38:59,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:38:59,781 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:38:59,781 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_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29282a3bf422a4239bd2757ad686eee31020f0cfb559a37401ead246e8f2c486 [2022-11-23 13:39:00,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:39:00,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:39:00,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:39:00,142 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:39:00,143 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:39:00,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/termination-memory-alloca/a.09_assume-alloca.i [2022-11-23 13:39:03,131 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:39:03,357 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:39:03,358 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/sv-benchmarks/c/termination-memory-alloca/a.09_assume-alloca.i [2022-11-23 13:39:03,378 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/data/42ff273f8/8405468f5f624d6cb6771e08990d6c14/FLAGb0e840425 [2022-11-23 13:39:03,399 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/data/42ff273f8/8405468f5f624d6cb6771e08990d6c14 [2022-11-23 13:39:03,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:39:03,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:39:03,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:39:03,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:39:03,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:39:03,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:39:03" (1/1) ... [2022-11-23 13:39:03,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24f81d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:03, skipping insertion in model container [2022-11-23 13:39:03,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:39:03" (1/1) ... [2022-11-23 13:39:03,425 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:39:03,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:39:03,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:39:03,799 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:39:03,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:39:03,880 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:39:03,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:03 WrapperNode [2022-11-23 13:39:03,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:39:03,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:39:03,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:39:03,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:39:03,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:03" (1/1) ... [2022-11-23 13:39:03,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:03" (1/1) ... [2022-11-23 13:39:03,919 INFO L138 Inliner]: procedures = 111, calls = 33, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2022-11-23 13:39:03,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:39:03,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:39:03,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:39:03,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:39:03,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:03" (1/1) ... [2022-11-23 13:39:03,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:03" (1/1) ... [2022-11-23 13:39:03,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:03" (1/1) ... [2022-11-23 13:39:03,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:03" (1/1) ... [2022-11-23 13:39:03,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:03" (1/1) ... [2022-11-23 13:39:03,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:03" (1/1) ... [2022-11-23 13:39:03,945 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:03" (1/1) ... [2022-11-23 13:39:03,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:03" (1/1) ... [2022-11-23 13:39:03,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:39:03,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:39:03,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:39:03,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:39:03,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:03" (1/1) ... [2022-11-23 13:39:03,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:39:03,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:39:03,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:39:03,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:39:04,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 13:39:04,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 13:39:04,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 13:39:04,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 13:39:04,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:39:04,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:39:04,137 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:39:04,139 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:39:04,375 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:39:04,400 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:39:04,401 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 13:39:04,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:39:04 BoogieIcfgContainer [2022-11-23 13:39:04,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:39:04,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:39:04,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:39:04,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:39:04,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:39:03" (1/3) ... [2022-11-23 13:39:04,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437046d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:39:04, skipping insertion in model container [2022-11-23 13:39:04,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:03" (2/3) ... [2022-11-23 13:39:04,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437046d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:39:04, skipping insertion in model container [2022-11-23 13:39:04,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:39:04" (3/3) ... [2022-11-23 13:39:04,413 INFO L112 eAbstractionObserver]: Analyzing ICFG a.09_assume-alloca.i [2022-11-23 13:39:04,438 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:39:04,438 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-23 13:39:04,486 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:39:04,493 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=FINITE_AUTOMATA, 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;@2cd75c24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:39:04,493 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-23 13:39:04,499 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.75) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:39:04,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 13:39:04,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:39:04,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 13:39:04,508 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)] === [2022-11-23 13:39:04,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:39:04,517 INFO L85 PathProgramCache]: Analyzing trace with hash 72255188, now seen corresponding path program 1 times [2022-11-23 13:39:04,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:39:04,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262014234] [2022-11-23 13:39:04,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:39:04,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:39:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:39:05,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:39:05,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:39:05,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262014234] [2022-11-23 13:39:05,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262014234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:39:05,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:39:05,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:39:05,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51774504] [2022-11-23 13:39:05,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:39:05,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 13:39:05,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:39:05,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 13:39:05,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:39:05,423 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.75) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:39:05,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:39:05,526 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2022-11-23 13:39:05,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 13:39:05,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-23 13:39:05,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:39:05,541 INFO L225 Difference]: With dead ends: 21 [2022-11-23 13:39:05,542 INFO L226 Difference]: Without dead ends: 14 [2022-11-23 13:39:05,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:39:05,553 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 18 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:39:05,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 16 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:39:05,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-23 13:39:05,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2022-11-23 13:39:05,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:39:05,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-11-23 13:39:05,582 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 5 [2022-11-23 13:39:05,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:39:05,583 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-11-23 13:39:05,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:39:05,583 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-23 13:39:05,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 13:39:05,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:39:05,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 13:39:05,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 13:39:05,585 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 13:39:05,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:39:05,586 INFO L85 PathProgramCache]: Analyzing trace with hash -2055056419, now seen corresponding path program 1 times [2022-11-23 13:39:05,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:39:05,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542851105] [2022-11-23 13:39:05,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:39:05,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:39:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:39:05,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:39:05,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:39:05,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542851105] [2022-11-23 13:39:05,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542851105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:39:05,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:39:05,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:39:05,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408236726] [2022-11-23 13:39:05,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:39:05,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 13:39:05,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:39:05,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 13:39:05,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:39:05,708 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:39:05,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:39:05,759 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-11-23 13:39:05,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 13:39:05,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 13:39:05,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:39:05,760 INFO L225 Difference]: With dead ends: 25 [2022-11-23 13:39:05,760 INFO L226 Difference]: Without dead ends: 24 [2022-11-23 13:39:05,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:39:05,762 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:39:05,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 21 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:39:05,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-23 13:39:05,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 17. [2022-11-23 13:39:05,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 16 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) [2022-11-23 13:39:05,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-23 13:39:05,768 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 6 [2022-11-23 13:39:05,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:39:05,768 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-23 13:39:05,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:39:05,769 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-23 13:39:05,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 13:39:05,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:39:05,770 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:39:05,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 13:39:05,770 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 13:39:05,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:39:05,771 INFO L85 PathProgramCache]: Analyzing trace with hash 717949274, now seen corresponding path program 1 times [2022-11-23 13:39:05,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:39:05,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210550706] [2022-11-23 13:39:05,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:39:05,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:39:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:39:05,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:39:05,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:39:05,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210550706] [2022-11-23 13:39:05,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210550706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:39:05,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:39:05,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:39:05,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682462412] [2022-11-23 13:39:05,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:39:05,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:39:05,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:39:05,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:39:05,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:39:05,809 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:39:05,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:39:05,823 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-11-23 13:39:05,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:39:05,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-23 13:39:05,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:39:05,824 INFO L225 Difference]: With dead ends: 29 [2022-11-23 13:39:05,824 INFO L226 Difference]: Without dead ends: 17 [2022-11-23 13:39:05,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:39:05,826 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:39:05,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:39:05,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-23 13:39:05,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-23 13:39:05,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:39:05,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-11-23 13:39:05,832 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2022-11-23 13:39:05,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:39:05,833 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-11-23 13:39:05,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:39:05,833 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-11-23 13:39:05,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 13:39:05,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:39:05,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:39:05,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 13:39:05,836 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)] === [2022-11-23 13:39:05,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:39:05,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1721884482, now seen corresponding path program 1 times [2022-11-23 13:39:05,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:39:05,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147335537] [2022-11-23 13:39:05,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:39:05,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:39:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:39:06,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:39:06,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:39:06,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147335537] [2022-11-23 13:39:06,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147335537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:39:06,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:39:06,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:39:06,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236136601] [2022-11-23 13:39:06,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:39:06,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 13:39:06,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:39:06,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 13:39:06,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:39:06,127 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:39:06,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:39:06,202 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2022-11-23 13:39:06,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 13:39:06,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 13:39:06,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:39:06,204 INFO L225 Difference]: With dead ends: 23 [2022-11-23 13:39:06,204 INFO L226 Difference]: Without dead ends: 22 [2022-11-23 13:39:06,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:39:06,206 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:39:06,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 17 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:39:06,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-23 13:39:06,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2022-11-23 13:39:06,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 19 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) [2022-11-23 13:39:06,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2022-11-23 13:39:06,210 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 9 [2022-11-23 13:39:06,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:39:06,211 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2022-11-23 13:39:06,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:39:06,211 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2022-11-23 13:39:06,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 13:39:06,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:39:06,212 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:39:06,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 13:39:06,212 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 13:39:06,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:39:06,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1838811324, now seen corresponding path program 1 times [2022-11-23 13:39:06,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:39:06,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388807758] [2022-11-23 13:39:06,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:39:06,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:39:06,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:39:06,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:39:06,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:39:06,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388807758] [2022-11-23 13:39:06,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388807758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:39:06,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:39:06,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 13:39:06,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192823796] [2022-11-23 13:39:06,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:39:06,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 13:39:06,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:39:06,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 13:39:06,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-23 13:39:06,532 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:39:06,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:39:06,608 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2022-11-23 13:39:06,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 13:39:06,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-23 13:39:06,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:39:06,611 INFO L225 Difference]: With dead ends: 20 [2022-11-23 13:39:06,611 INFO L226 Difference]: Without dead ends: 19 [2022-11-23 13:39:06,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 13:39:06,619 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:39:06,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:39:06,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-23 13:39:06,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-23 13:39:06,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 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) [2022-11-23 13:39:06,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2022-11-23 13:39:06,635 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2022-11-23 13:39:06,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:39:06,636 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2022-11-23 13:39:06,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:39:06,637 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2022-11-23 13:39:06,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-23 13:39:06,640 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:39:06,640 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:39:06,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 13:39:06,641 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 13:39:06,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:39:06,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1952742313, now seen corresponding path program 1 times [2022-11-23 13:39:06,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:39:06,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249872932] [2022-11-23 13:39:06,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:39:06,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:39:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:39:07,060 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 13:39:07,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:39:07,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249872932] [2022-11-23 13:39:07,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249872932] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:39:07,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850643663] [2022-11-23 13:39:07,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:39:07,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:39:07,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:39:07,066 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:39:07,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 13:39:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:39:07,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-23 13:39:07,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:39:07,438 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2022-11-23 13:39:07,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 229 [2022-11-23 13:39:07,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-23 13:39:07,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-23 13:39:07,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-23 13:39:07,649 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:39:07,660 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:39:07,680 INFO L321 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2022-11-23 13:39:07,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 97 treesize of output 98 [2022-11-23 13:39:07,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-23 13:39:07,793 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:39:07,795 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:39:07,798 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:39:07,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 78 [2022-11-23 13:39:07,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-23 13:39:08,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 15 [2022-11-23 13:39:08,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-23 13:39:08,311 INFO L321 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2022-11-23 13:39:08,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 35 [2022-11-23 13:39:08,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 13:39:08,368 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:39:08,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:39:08,562 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 13:39:08,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850643663] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:39:08,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1975523470] [2022-11-23 13:39:08,581 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-23 13:39:08,581 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:39:08,585 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:39:08,591 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:39:08,591 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 13:39:08,667 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:39:08,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:39:08,707 INFO L321 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2022-11-23 13:39:08,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 33 [2022-11-23 13:39:08,776 INFO L321 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2022-11-23 13:39:08,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 45 treesize of output 45 [2022-11-23 13:39:08,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2022-11-23 13:39:09,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:39:09,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:39:09,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:39:09,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 65 [2022-11-23 13:39:09,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:39:09,486 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-23 13:39:09,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 44 [2022-11-23 13:39:09,672 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:39:09,699 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-23 13:39:09,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 44 [2022-11-23 13:39:09,887 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 13:39:11,586 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '371#(and (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~y#1|)) (<= 0 |ULTIMATE.start_test_fun_~z_ref~0#1.offset|) (= |ULTIMATE.start_test_fun_#t~malloc2#1.offset| 0) (<= |ULTIMATE.start_main_#t~nondet17#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet17#1|)) (<= 0 |ULTIMATE.start_test_fun_#t~malloc4#1.base|) (<= 0 |ULTIMATE.start_test_fun_#t~malloc2#1.base|) (<= |ULTIMATE.start_test_fun_~y#1| 2147483647) (<= |ULTIMATE.start_test_fun_~x#1| 2147483647) (<= 0 (+ |ULTIMATE.start_test_fun_~y#1| 2147483648)) (<= |ULTIMATE.start_main_#t~nondet19#1| 2147483647) (= |ULTIMATE.start_test_fun_#t~malloc3#1.offset| 0) (<= 0 (+ |ULTIMATE.start_test_fun_~x#1| 2147483648)) (<= |ULTIMATE.start_test_fun_~y_ref~0#1.offset| 0) (< |ULTIMATE.start_test_fun_#t~mem9#1| 0) (<= 0 |ULTIMATE.start_test_fun_~x_ref~0#1.base|) (<= 0 |ULTIMATE.start_test_fun_~y_ref~0#1.base|) (<= |ULTIMATE.start_main_#t~nondet18#1| 2147483647) (<= 0 |ULTIMATE.start_test_fun_~x_ref~0#1.offset|) (<= |ULTIMATE.start_test_fun_#in~y#1| 2147483647) (<= 0 |ULTIMATE.start_test_fun_~z_ref~0#1.base|) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~z#1|)) (<= |ULTIMATE.start_test_fun_#in~z#1| 2147483647) (= |ULTIMATE.start_test_fun_#t~malloc4#1.offset| 0) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet19#1|)) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet18#1|)) (<= 0 |ULTIMATE.start_test_fun_#t~malloc3#1.base|) (<= 0 (+ |ULTIMATE.start_test_fun_~z#1| 2147483648)) (<= |ULTIMATE.start_test_fun_~z_ref~0#1.offset| 0) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~x#1|)) (<= 0 |ULTIMATE.start_test_fun_~y_ref~0#1.offset|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_test_fun_~x_ref~0#1.offset| 0) (<= |ULTIMATE.start_test_fun_#in~x#1| 2147483647) (<= |ULTIMATE.start_test_fun_~z#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 13:39:11,586 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 13:39:11,586 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 13:39:11,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 4] total 11 [2022-11-23 13:39:11,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207644338] [2022-11-23 13:39:11,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 13:39:11,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 13:39:11,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:39:11,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 13:39:11,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2022-11-23 13:39:11,590 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:39:11,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:39:11,744 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-23 13:39:11,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 13:39:11,745 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-23 13:39:11,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:39:11,745 INFO L225 Difference]: With dead ends: 19 [2022-11-23 13:39:11,745 INFO L226 Difference]: Without dead ends: 18 [2022-11-23 13:39:11,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=120, Invalid=530, Unknown=0, NotChecked=0, Total=650 [2022-11-23 13:39:11,747 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:39:11,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 0 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:39:11,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-23 13:39:11,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-23 13:39:11,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 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) [2022-11-23 13:39:11,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-23 13:39:11,750 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2022-11-23 13:39:11,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:39:11,755 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-23 13:39:11,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:39:11,755 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-23 13:39:11,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 13:39:11,757 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:39:11,757 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-23 13:39:11,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 13:39:11,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:39:11,958 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 13:39:11,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:39:11,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1185720974, now seen corresponding path program 1 times [2022-11-23 13:39:11,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:39:11,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610196292] [2022-11-23 13:39:11,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:39:11,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:39:11,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:39:12,342 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:39:12,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:39:12,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610196292] [2022-11-23 13:39:12,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610196292] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:39:12,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647111287] [2022-11-23 13:39:12,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:39:12,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:39:12,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:39:12,350 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:39:12,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 13:39:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:39:12,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 13:39:12,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:39:12,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 13:39:12,531 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 13:39:12,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 27 [2022-11-23 13:39:12,554 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:39:12,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:39:12,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647111287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:39:12,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 13:39:12,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 12 [2022-11-23 13:39:12,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929964026] [2022-11-23 13:39:12,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:39:12,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 13:39:12,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:39:12,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 13:39:12,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-23 13:39:12,557 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:39:12,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:39:12,598 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-11-23 13:39:12,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 13:39:12,598 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-23 13:39:12,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:39:12,599 INFO L225 Difference]: With dead ends: 18 [2022-11-23 13:39:12,599 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 13:39:12,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-23 13:39:12,600 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:39:12,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 12 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:39:12,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 13:39:12,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 13:39:12,602 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) [2022-11-23 13:39:12,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 13:39:12,602 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-11-23 13:39:12,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:39:12,603 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 13:39:12,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:39:12,603 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 13:39:12,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 13:39:12,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-23 13:39:12,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-23 13:39:12,606 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-23 13:39:12,607 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-23 13:39:12,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 13:39:12,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:39:12,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 13:39:12,860 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 558) no Hoare annotation was computed. [2022-11-23 13:39:12,860 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 13:39:12,860 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 562) no Hoare annotation was computed. [2022-11-23 13:39:12,861 INFO L895 garLoopResultBuilder]: At program point L564(lines 547 565) the Hoare annotation is: (and (<= (select (select |#memory_int| |ULTIMATE.start_test_fun_~y_ref~0#1.base|) |ULTIMATE.start_test_fun_~y_ref~0#1.offset|) 4294967295) (not (= |ULTIMATE.start_test_fun_~z_ref~0#1.base| |ULTIMATE.start_test_fun_~y_ref~0#1.base|))) [2022-11-23 13:39:12,861 INFO L899 garLoopResultBuilder]: For program point L562(line 562) no Hoare annotation was computed. [2022-11-23 13:39:12,861 INFO L899 garLoopResultBuilder]: For program point L562-1(line 562) no Hoare annotation was computed. [2022-11-23 13:39:12,861 INFO L899 garLoopResultBuilder]: For program point L558-1(line 558) no Hoare annotation was computed. [2022-11-23 13:39:12,861 INFO L899 garLoopResultBuilder]: For program point L558-2(line 558) no Hoare annotation was computed. [2022-11-23 13:39:12,861 INFO L899 garLoopResultBuilder]: For program point L558-3(line 558) no Hoare annotation was computed. [2022-11-23 13:39:12,861 INFO L899 garLoopResultBuilder]: For program point L558-5(lines 558 563) no Hoare annotation was computed. [2022-11-23 13:39:12,862 INFO L895 garLoopResultBuilder]: At program point L558-7(lines 558 563) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_test_fun_~y_ref~0#1.base|) |ULTIMATE.start_test_fun_~y_ref~0#1.offset|))) (and (<= .cse0 4294967295) (not (= |ULTIMATE.start_test_fun_~z_ref~0#1.base| |ULTIMATE.start_test_fun_~y_ref~0#1.base|)) (= |ULTIMATE.start_test_fun_~z_ref~0#1.offset| 0) (= |ULTIMATE.start_test_fun_~y_ref~0#1.offset| 0) (<= 1 .cse0) (<= 0 (+ (select (select |#memory_int| |ULTIMATE.start_test_fun_~z_ref~0#1.base|) |ULTIMATE.start_test_fun_~z_ref~0#1.offset|) 2147483648)))) [2022-11-23 13:39:12,862 INFO L899 garLoopResultBuilder]: For program point L558-8(lines 558 563) no Hoare annotation was computed. [2022-11-23 13:39:12,862 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 558) no Hoare annotation was computed. [2022-11-23 13:39:12,862 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 562) no Hoare annotation was computed. [2022-11-23 13:39:12,862 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 13:39:12,862 INFO L899 garLoopResultBuilder]: For program point L559(lines 559 561) no Hoare annotation was computed. [2022-11-23 13:39:12,862 INFO L899 garLoopResultBuilder]: For program point L555(lines 555 557) no Hoare annotation was computed. [2022-11-23 13:39:12,866 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:39:12,868 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 13:39:12,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:39:12 BoogieIcfgContainer [2022-11-23 13:39:12,884 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 13:39:12,884 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 13:39:12,884 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 13:39:12,885 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 13:39:12,885 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:39:04" (3/4) ... [2022-11-23 13:39:12,888 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 13:39:12,897 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-23 13:39:12,898 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 13:39:12,898 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 13:39:12,898 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 13:39:12,934 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 13:39:12,935 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 13:39:12,935 INFO L158 Benchmark]: Toolchain (without parser) took 9528.11ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 130.3MB in the beginning and 147.6MB in the end (delta: -17.3MB). Peak memory consumption was 62.4MB. Max. memory is 16.1GB. [2022-11-23 13:39:12,935 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 115.3MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:39:12,936 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.72ms. Allocated memory is still 169.9MB. Free memory was 130.3MB in the beginning and 114.5MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 13:39:12,936 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.88ms. Allocated memory is still 169.9MB. Free memory was 114.5MB in the beginning and 112.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 13:39:12,936 INFO L158 Benchmark]: Boogie Preprocessor took 30.62ms. Allocated memory is still 169.9MB. Free memory was 112.1MB in the beginning and 111.4MB in the end (delta: 685.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:39:12,937 INFO L158 Benchmark]: RCFGBuilder took 451.88ms. Allocated memory is still 169.9MB. Free memory was 111.4MB in the beginning and 97.4MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 13:39:12,937 INFO L158 Benchmark]: TraceAbstraction took 8477.60ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 96.7MB in the beginning and 150.7MB in the end (delta: -54.0MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2022-11-23 13:39:12,938 INFO L158 Benchmark]: Witness Printer took 50.57ms. Allocated memory is still 247.5MB. Free memory was 150.7MB in the beginning and 147.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 13:39:12,939 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 115.3MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 470.72ms. Allocated memory is still 169.9MB. Free memory was 130.3MB in the beginning and 114.5MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.88ms. Allocated memory is still 169.9MB. Free memory was 114.5MB in the beginning and 112.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.62ms. Allocated memory is still 169.9MB. Free memory was 112.1MB in the beginning and 111.4MB in the end (delta: 685.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 451.88ms. Allocated memory is still 169.9MB. Free memory was 111.4MB in the beginning and 97.4MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8477.60ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 96.7MB in the beginning and 150.7MB in the end (delta: -54.0MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. * Witness Printer took 50.57ms. Allocated memory is still 247.5MB. Free memory was 150.7MB in the beginning and 147.6MB in the end (delta: 3.1MB). 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: 558]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 558]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 562]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 562]: 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, 17 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 91 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 246 IncrementalHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 33 mSDtfsCounter, 246 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=4, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 46 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 49 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 103 ConstructedInterpolants, 2 QuantifiedInterpolants, 1001 SizeOfPredicates, 13 NumberOfNonLiveVariables, 292 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 12/26 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: 547]: Loop Invariant Derived loop invariant: unknown-#memory_int-unknown[y_ref][y_ref] <= 4294967295 && !(z_ref == y_ref) - InvariantResult [Line: 558]: Loop Invariant Derived loop invariant: ((((unknown-#memory_int-unknown[y_ref][y_ref] <= 4294967295 && !(z_ref == y_ref)) && z_ref == 0) && y_ref == 0) && 1 <= unknown-#memory_int-unknown[y_ref][y_ref]) && 0 <= unknown-#memory_int-unknown[z_ref][z_ref] + 2147483648 RESULT: Ultimate proved your program to be correct! [2022-11-23 13:39:12,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04551b27-e1d6-413a-894c-8cee44e2fe03/bin/utaipan-Q6hlc19bkW/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