./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-tiling/tcpy.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/tcpy.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0 --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 32bit --witnessprinter.graph.data.programhash a747677fdea16741fbb3fca3d9510254677728ef5906b9bf8e219064accd3a39 --- 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-e04fb08 [2022-11-16 20:12:41,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 20:12:41,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 20:12:41,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 20:12:41,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 20:12:41,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 20:12:41,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 20:12:41,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 20:12:41,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 20:12:41,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 20:12:41,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 20:12:41,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 20:12:41,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 20:12:41,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 20:12:41,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 20:12:41,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 20:12:41,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 20:12:41,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 20:12:41,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 20:12:41,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 20:12:41,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 20:12:41,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 20:12:41,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 20:12:41,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 20:12:41,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 20:12:41,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 20:12:41,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 20:12:41,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 20:12:41,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 20:12:41,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 20:12:41,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 20:12:41,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 20:12:41,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 20:12:41,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 20:12:41,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 20:12:41,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 20:12:41,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 20:12:41,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 20:12:41,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 20:12:41,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 20:12:41,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 20:12:41,673 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-16 20:12:41,727 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 20:12:41,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 20:12:41,729 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 20:12:41,729 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 20:12:41,730 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 20:12:41,731 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 20:12:41,731 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 20:12:41,731 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 20:12:41,732 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 20:12:41,732 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 20:12:41,733 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 20:12:41,734 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 20:12:41,734 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 20:12:41,734 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 20:12:41,735 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 20:12:41,735 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 20:12:41,735 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 20:12:41,735 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 20:12:41,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 20:12:41,737 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 20:12:41,737 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 20:12:41,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 20:12:41,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 20:12:41,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 20:12:41,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 20:12:41,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 20:12:41,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 20:12:41,741 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 20:12:41,741 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 20:12:41,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 20:12:41,742 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 20:12:41,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 20:12:41,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 20:12:41,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 20:12:41,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:12:41,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 20:12:41,744 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 20:12:41,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 20:12:41,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 20:12:41,744 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 20:12:41,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 20:12:41,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 20:12:41,745 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 20:12:41,746 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_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a747677fdea16741fbb3fca3d9510254677728ef5906b9bf8e219064accd3a39 [2022-11-16 20:12:42,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 20:12:42,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 20:12:42,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 20:12:42,121 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 20:12:42,122 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 20:12:42,124 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/array-tiling/tcpy.c [2022-11-16 20:12:42,219 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/data/6e8691fe3/0a2517319e8548f08c76b8cb19492413/FLAGe9c342240 [2022-11-16 20:12:42,891 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 20:12:42,892 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/sv-benchmarks/c/array-tiling/tcpy.c [2022-11-16 20:12:42,900 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/data/6e8691fe3/0a2517319e8548f08c76b8cb19492413/FLAGe9c342240 [2022-11-16 20:12:43,236 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/data/6e8691fe3/0a2517319e8548f08c76b8cb19492413 [2022-11-16 20:12:43,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 20:12:43,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 20:12:43,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 20:12:43,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 20:12:43,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 20:12:43,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:12:43" (1/1) ... [2022-11-16 20:12:43,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aa750eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:12:43, skipping insertion in model container [2022-11-16 20:12:43,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:12:43" (1/1) ... [2022-11-16 20:12:43,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 20:12:43,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 20:12:43,514 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/sv-benchmarks/c/array-tiling/tcpy.c[395,408] [2022-11-16 20:12:43,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:12:43,540 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 20:12:43,554 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/sv-benchmarks/c/array-tiling/tcpy.c[395,408] [2022-11-16 20:12:43,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:12:43,578 INFO L208 MainTranslator]: Completed translation [2022-11-16 20:12:43,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:12:43 WrapperNode [2022-11-16 20:12:43,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 20:12:43,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 20:12:43,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 20:12:43,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 20:12:43,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:12:43" (1/1) ... [2022-11-16 20:12:43,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:12:43" (1/1) ... [2022-11-16 20:12:43,617 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2022-11-16 20:12:43,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 20:12:43,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 20:12:43,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 20:12:43,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 20:12:43,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:12:43" (1/1) ... [2022-11-16 20:12:43,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:12:43" (1/1) ... [2022-11-16 20:12:43,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:12:43" (1/1) ... [2022-11-16 20:12:43,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:12:43" (1/1) ... [2022-11-16 20:12:43,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:12:43" (1/1) ... [2022-11-16 20:12:43,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:12:43" (1/1) ... [2022-11-16 20:12:43,659 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:12:43" (1/1) ... [2022-11-16 20:12:43,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:12:43" (1/1) ... [2022-11-16 20:12:43,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 20:12:43,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 20:12:43,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 20:12:43,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 20:12:43,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:12:43" (1/1) ... [2022-11-16 20:12:43,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:12:43,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:12:43,717 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 20:12:43,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 20:12:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 20:12:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 20:12:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 20:12:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 20:12:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 20:12:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 20:12:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 20:12:43,844 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 20:12:43,846 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 20:12:44,216 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 20:12:44,288 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 20:12:44,289 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-16 20:12:44,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:12:44 BoogieIcfgContainer [2022-11-16 20:12:44,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 20:12:44,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 20:12:44,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 20:12:44,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 20:12:44,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:12:43" (1/3) ... [2022-11-16 20:12:44,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738b0f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:12:44, skipping insertion in model container [2022-11-16 20:12:44,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:12:43" (2/3) ... [2022-11-16 20:12:44,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738b0f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:12:44, skipping insertion in model container [2022-11-16 20:12:44,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:12:44" (3/3) ... [2022-11-16 20:12:44,314 INFO L112 eAbstractionObserver]: Analyzing ICFG tcpy.c [2022-11-16 20:12:44,338 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 20:12:44,339 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-16 20:12:44,435 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 20:12:44,448 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;@73a0306a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 20:12:44,449 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-16 20:12:44,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 25 states have (on average 1.88) internal successors, (47), 41 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:12:44,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 20:12:44,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:12:44,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 20:12:44,462 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-16 20:12:44,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:12:44,469 INFO L85 PathProgramCache]: Analyzing trace with hash 4208638, now seen corresponding path program 1 times [2022-11-16 20:12:44,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:12:44,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575626477] [2022-11-16 20:12:44,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:12:44,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:12:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:12:44,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:12:44,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:12:44,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575626477] [2022-11-16 20:12:44,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575626477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:12:44,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:12:44,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:12:44,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586021689] [2022-11-16 20:12:44,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:12:44,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 20:12:44,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:12:45,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 20:12:45,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 20:12:45,022 INFO L87 Difference]: Start difference. First operand has 42 states, 25 states have (on average 1.88) internal successors, (47), 41 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:12:45,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:12:45,184 INFO L93 Difference]: Finished difference Result 91 states and 100 transitions. [2022-11-16 20:12:45,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 20:12:45,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-16 20:12:45,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:12:45,197 INFO L225 Difference]: With dead ends: 91 [2022-11-16 20:12:45,211 INFO L226 Difference]: Without dead ends: 74 [2022-11-16 20:12:45,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 20:12:45,218 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 37 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:12:45,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 54 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:12:45,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-16 20:12:45,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 42. [2022-11-16 20:12:45,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.7307692307692308) internal successors, (45), 41 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:12:45,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2022-11-16 20:12:45,268 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 4 [2022-11-16 20:12:45,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:12:45,268 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2022-11-16 20:12:45,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:12:45,269 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2022-11-16 20:12:45,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 20:12:45,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:12:45,270 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 20:12:45,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 20:12:45,270 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-16 20:12:45,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:12:45,271 INFO L85 PathProgramCache]: Analyzing trace with hash 130480464, now seen corresponding path program 1 times [2022-11-16 20:12:45,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:12:45,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773191064] [2022-11-16 20:12:45,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:12:45,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:12:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:12:45,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:12:45,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:12:45,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773191064] [2022-11-16 20:12:45,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773191064] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:12:45,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:12:45,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:12:45,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143387719] [2022-11-16 20:12:45,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:12:45,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:12:45,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:12:45,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:12:45,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:12:45,367 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2022-11-16 20:12:45,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:12:45,434 INFO L93 Difference]: Finished difference Result 74 states and 78 transitions. [2022-11-16 20:12:45,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:12:45,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 [2022-11-16 20:12:45,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:12:45,436 INFO L225 Difference]: With dead ends: 74 [2022-11-16 20:12:45,436 INFO L226 Difference]: Without dead ends: 42 [2022-11-16 20:12:45,437 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 [2022-11-16 20:12:45,438 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:12:45,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 44 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:12:45,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-16 20:12:45,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-16 20:12:45,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 41 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:12:45,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2022-11-16 20:12:45,446 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 5 [2022-11-16 20:12:45,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:12:45,446 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2022-11-16 20:12:45,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2022-11-16 20:12:45,447 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2022-11-16 20:12:45,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 20:12:45,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:12:45,448 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-11-16 20:12:45,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 20:12:45,449 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-16 20:12:45,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:12:45,449 INFO L85 PathProgramCache]: Analyzing trace with hash 825534426, now seen corresponding path program 1 times [2022-11-16 20:12:45,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:12:45,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303985775] [2022-11-16 20:12:45,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:12:45,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:12:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:12:45,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:12:45,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:12:45,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303985775] [2022-11-16 20:12:45,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303985775] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:12:45,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220852300] [2022-11-16 20:12:45,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:12:45,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:12:45,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:12:45,572 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:12:45,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 20:12:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:12:45,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 20:12:45,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:12:45,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:12:45,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:12:45,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:12:45,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220852300] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:12:45,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [668230477] [2022-11-16 20:12:45,827 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2022-11-16 20:12:45,827 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:12:45,831 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:12:45,837 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:12:45,838 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:12:46,158 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-16 20:12:46,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 20:12:46,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-16 20:12:46,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 102 [2022-11-16 20:12:46,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:46,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:46,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:46,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:46,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:46,641 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:12:46,710 INFO L321 Elim1Store]: treesize reduction 126, result has 21.7 percent of original size [2022-11-16 20:12:46,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 26 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 13 case distinctions, treesize of input 425 treesize of output 417 [2022-11-16 20:12:47,429 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 15 treesize of output 11 [2022-11-16 20:12:47,457 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 15 treesize of output 11 [2022-11-16 20:12:47,468 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:12:47,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [668230477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:12:47,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:12:47,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5, 5] total 14 [2022-11-16 20:12:47,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676657135] [2022-11-16 20:12:47,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:12:47,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 20:12:47,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:12:47,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 20:12:47,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-11-16 20:12:47,732 INFO L87 Difference]: Start difference. First operand 42 states and 44 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) [2022-11-16 20:12:48,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:12:48,220 INFO L93 Difference]: Finished difference Result 73 states and 76 transitions. [2022-11-16 20:12:48,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 20:12:48,222 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 7 [2022-11-16 20:12:48,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:12:48,225 INFO L225 Difference]: With dead ends: 73 [2022-11-16 20:12:48,225 INFO L226 Difference]: Without dead ends: 65 [2022-11-16 20:12:48,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-11-16 20:12:48,227 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 27 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 20:12:48,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 36 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 20:12:48,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-16 20:12:48,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 48. [2022-11-16 20:12:48,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.588235294117647) internal successors, (54), 47 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:12:48,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2022-11-16 20:12:48,234 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 7 [2022-11-16 20:12:48,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:12:48,235 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2022-11-16 20:12:48,235 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) [2022-11-16 20:12:48,235 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2022-11-16 20:12:48,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 20:12:48,236 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:12:48,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:12:48,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 20:12:48,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:12:48,445 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-16 20:12:48,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:12:48,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1760667557, now seen corresponding path program 1 times [2022-11-16 20:12:48,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:12:48,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554727367] [2022-11-16 20:12:48,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:12:48,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:12:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:12:48,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 20:12:48,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:12:48,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554727367] [2022-11-16 20:12:48,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554727367] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:12:48,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:12:48,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:12:48,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201514634] [2022-11-16 20:12:48,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:12:48,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 20:12:48,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:12:48,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 20:12:48,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 20:12:48,613 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:12:48,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:12:48,718 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2022-11-16 20:12:48,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 20:12:48,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-16 20:12:48,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:12:48,722 INFO L225 Difference]: With dead ends: 70 [2022-11-16 20:12:48,722 INFO L226 Difference]: Without dead ends: 59 [2022-11-16 20:12:48,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 20:12:48,728 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 53 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:12:48,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 19 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:12:48,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-16 20:12:48,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 48. [2022-11-16 20:12:48,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 47 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:12:48,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2022-11-16 20:12:48,752 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 12 [2022-11-16 20:12:48,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:12:48,753 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2022-11-16 20:12:48,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:12:48,754 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2022-11-16 20:12:48,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 20:12:48,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:12:48,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:12:48,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 20:12:48,759 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-16 20:12:48,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:12:48,760 INFO L85 PathProgramCache]: Analyzing trace with hash -677055664, now seen corresponding path program 1 times [2022-11-16 20:12:48,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:12:48,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869987204] [2022-11-16 20:12:48,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:12:48,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:12:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:12:48,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 20:12:48,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:12:48,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869987204] [2022-11-16 20:12:48,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869987204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:12:48,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:12:48,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:12:48,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000045013] [2022-11-16 20:12:48,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:12:48,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 20:12:48,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:12:48,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 20:12:48,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 20:12:48,878 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:12:48,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:12:48,959 INFO L93 Difference]: Finished difference Result 59 states and 61 transitions. [2022-11-16 20:12:48,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 20:12:48,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-16 20:12:48,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:12:48,961 INFO L225 Difference]: With dead ends: 59 [2022-11-16 20:12:48,961 INFO L226 Difference]: Without dead ends: 57 [2022-11-16 20:12:48,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 20:12:48,963 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 9 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:12:48,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 52 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:12:48,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-16 20:12:48,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2022-11-16 20:12:48,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 49 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:12:48,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2022-11-16 20:12:48,970 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 19 [2022-11-16 20:12:48,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:12:48,971 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2022-11-16 20:12:48,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:12:48,971 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2022-11-16 20:12:48,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-16 20:12:48,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:12:48,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:12:48,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 20:12:48,973 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-16 20:12:48,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:12:48,974 INFO L85 PathProgramCache]: Analyzing trace with hash -2110428301, now seen corresponding path program 1 times [2022-11-16 20:12:48,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:12:48,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598503084] [2022-11-16 20:12:48,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:12:48,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:12:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:12:49,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 20:12:49,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:12:49,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598503084] [2022-11-16 20:12:49,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598503084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:12:49,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:12:49,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:12:49,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451442522] [2022-11-16 20:12:49,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:12:49,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:12:49,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:12:49,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:12:49,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:12:49,047 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 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) [2022-11-16 20:12:49,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:12:49,088 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2022-11-16 20:12:49,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:12:49,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 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) Word has length 21 [2022-11-16 20:12:49,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:12:49,089 INFO L225 Difference]: With dead ends: 50 [2022-11-16 20:12:49,090 INFO L226 Difference]: Without dead ends: 49 [2022-11-16 20:12:49,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:12:49,091 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:12:49,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 11 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:12:49,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-16 20:12:49,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-16 20:12:49,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 48 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:12:49,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2022-11-16 20:12:49,098 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 21 [2022-11-16 20:12:49,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:12:49,099 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2022-11-16 20:12:49,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 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) [2022-11-16 20:12:49,099 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2022-11-16 20:12:49,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 20:12:49,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:12:49,100 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:12:49,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 20:12:49,101 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-16 20:12:49,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:12:49,102 INFO L85 PathProgramCache]: Analyzing trace with hash -2038165578, now seen corresponding path program 1 times [2022-11-16 20:12:49,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:12:49,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597549803] [2022-11-16 20:12:49,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:12:49,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:12:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:12:49,264 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 20:12:49,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:12:49,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597549803] [2022-11-16 20:12:49,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597549803] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:12:49,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576176358] [2022-11-16 20:12:49,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:12:49,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:12:49,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:12:49,266 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:12:49,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 20:12:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:12:49,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 20:12:49,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:12:49,425 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 20:12:49,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:12:49,482 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 20:12:49,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576176358] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:12:49,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1634396774] [2022-11-16 20:12:49,485 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-16 20:12:49,485 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:12:49,486 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:12:49,486 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:12:49,486 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:12:49,648 INFO L321 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-16 20:12:49,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-16 20:12:49,823 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-16 20:12:49,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 20:12:49,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 102 [2022-11-16 20:12:50,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:50,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 27 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 117 [2022-11-16 20:12:50,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:50,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:50,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:50,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:50,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:50,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:50,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:50,429 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:12:50,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:50,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:50,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:50,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:50,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:50,466 INFO L321 Elim1Store]: treesize reduction 107, result has 6.1 percent of original size [2022-11-16 20:12:50,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 33 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 20 case distinctions, treesize of input 477 treesize of output 439 [2022-11-16 20:12:50,629 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 15 treesize of output 11 [2022-11-16 20:12:50,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:50,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:50,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:12:50,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:12:50,866 INFO L321 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-11-16 20:12:50,866 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 3 case distinctions, treesize of input 46 treesize of output 53 [2022-11-16 20:12:51,009 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:12:51,010 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:12:51,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:12:51,024 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:12:51,495 INFO L321 Elim1Store]: treesize reduction 1117, result has 13.5 percent of original size [2022-11-16 20:12:51,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 590 treesize of output 677 [2022-11-16 20:12:52,502 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-16 20:12:52,503 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 1358 treesize of output 1341 [2022-11-16 20:12:53,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:12:53,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:12:53,241 INFO L321 Elim1Store]: treesize reduction 45, result has 33.8 percent of original size [2022-11-16 20:12:53,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 1324 treesize of output 1298 [2022-11-16 20:12:54,167 INFO L321 Elim1Store]: treesize reduction 52, result has 28.8 percent of original size [2022-11-16 20:12:54,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 675 treesize of output 670 [2022-11-16 20:13:08,097 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:08,098 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:08,251 INFO L321 Elim1Store]: treesize reduction 362, result has 13.6 percent of original size [2022-11-16 20:13:08,252 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 4 new quantified variables, introduced 7 case distinctions, treesize of input 132 treesize of output 129 [2022-11-16 20:13:08,313 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-16 20:13:08,314 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 86 treesize of output 85 [2022-11-16 20:13:08,334 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-16 20:13:08,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 43 treesize of output 27 [2022-11-16 20:13:08,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:08,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:08,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 19 [2022-11-16 20:13:08,671 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:08,672 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:08,786 INFO L321 Elim1Store]: treesize reduction 358, result has 14.6 percent of original size [2022-11-16 20:13:08,787 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 4 new quantified variables, introduced 7 case distinctions, treesize of input 132 treesize of output 133 [2022-11-16 20:13:08,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 32 treesize of output 21 [2022-11-16 20:13:08,812 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 21 treesize of output 11 [2022-11-16 20:13:09,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:09,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:09,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:09,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:09,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:09,070 INFO L321 Elim1Store]: treesize reduction 84, result has 28.8 percent of original size [2022-11-16 20:13:09,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 244 treesize of output 279 [2022-11-16 20:13:09,149 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:13:11,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1634396774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:13:11,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:13:11,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5, 5, 5] total 21 [2022-11-16 20:13:11,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958185046] [2022-11-16 20:13:11,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:13:11,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 20:13:11,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:13:11,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 20:13:11,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=350, Unknown=1, NotChecked=0, Total=420 [2022-11-16 20:13:11,367 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand has 13 states, 12 states have (on average 1.75) internal successors, (21), 12 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) [2022-11-16 20:13:12,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:13:12,179 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2022-11-16 20:13:12,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 20:13:12,180 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.75) internal successors, (21), 12 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) Word has length 24 [2022-11-16 20:13:12,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:13:12,181 INFO L225 Difference]: With dead ends: 54 [2022-11-16 20:13:12,181 INFO L226 Difference]: Without dead ends: 46 [2022-11-16 20:13:12,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 49 SyntacticMatches, 7 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=81, Invalid=424, Unknown=1, NotChecked=0, Total=506 [2022-11-16 20:13:12,182 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 32 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 20:13:12,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 28 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 115 Invalid, 0 Unknown, 31 Unchecked, 0.2s Time] [2022-11-16 20:13:12,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-16 20:13:12,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2022-11-16 20:13:12,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 37 states have (on average 1.162162162162162) internal successors, (43), 40 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:13:12,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2022-11-16 20:13:12,188 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 24 [2022-11-16 20:13:12,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:13:12,189 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2022-11-16 20:13:12,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.75) internal successors, (21), 12 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) [2022-11-16 20:13:12,189 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2022-11-16 20:13:12,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-16 20:13:12,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:13:12,190 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:13:12,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 20:13:12,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:13:12,395 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-16 20:13:12,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:13:12,396 INFO L85 PathProgramCache]: Analyzing trace with hash -172065258, now seen corresponding path program 1 times [2022-11-16 20:13:12,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:13:12,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581575956] [2022-11-16 20:13:12,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:13:12,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:13:12,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:13:12,478 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 20:13:12,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:13:12,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581575956] [2022-11-16 20:13:12,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581575956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:13:12,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:13:12,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:13:12,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993788799] [2022-11-16 20:13:12,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:13:12,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 20:13:12,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:13:12,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 20:13:12,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 20:13:12,481 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:13:12,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:13:12,546 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2022-11-16 20:13:12,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 20:13:12,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-16 20:13:12,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:13:12,547 INFO L225 Difference]: With dead ends: 48 [2022-11-16 20:13:12,547 INFO L226 Difference]: Without dead ends: 46 [2022-11-16 20:13:12,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 20:13:12,548 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 17 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:13:12,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 33 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:13:12,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-16 20:13:12,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2022-11-16 20:13:12,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 40 states have (on average 1.15) internal successors, (46), 43 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:13:12,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2022-11-16 20:13:12,555 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 26 [2022-11-16 20:13:12,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:13:12,555 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2022-11-16 20:13:12,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:13:12,556 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2022-11-16 20:13:12,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-16 20:13:12,557 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:13:12,557 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:13:12,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 20:13:12,557 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-16 20:13:12,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:13:12,559 INFO L85 PathProgramCache]: Analyzing trace with hash -2099992083, now seen corresponding path program 1 times [2022-11-16 20:13:12,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:13:12,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385668239] [2022-11-16 20:13:12,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:13:12,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:13:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:13:12,666 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 20:13:12,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:13:12,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385668239] [2022-11-16 20:13:12,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385668239] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:13:12,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721727474] [2022-11-16 20:13:12,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:13:12,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:13:12,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:13:12,668 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:13:12,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 20:13:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:13:12,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 20:13:12,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:13:12,794 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 20:13:12,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:13:12,831 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 20:13:12,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721727474] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:13:12,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [859069266] [2022-11-16 20:13:12,834 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-16 20:13:12,834 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:13:12,835 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:13:12,835 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:13:12,835 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:13:13,023 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-16 20:13:13,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 20:13:13,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-16 20:13:13,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 102 [2022-11-16 20:13:13,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:13,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 27 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 117 [2022-11-16 20:13:13,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:13,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:13,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:13,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:13,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:13,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:13,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:13,495 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:13,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:13,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:13,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:13,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:13,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:13,529 INFO L321 Elim1Store]: treesize reduction 107, result has 6.1 percent of original size [2022-11-16 20:13:13,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 33 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 20 case distinctions, treesize of input 477 treesize of output 439 [2022-11-16 20:13:13,664 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 15 treesize of output 11 [2022-11-16 20:13:13,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:13,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:13,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:13,840 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:13,861 INFO L321 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-11-16 20:13:13,861 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 3 case distinctions, treesize of input 46 treesize of output 53 [2022-11-16 20:13:13,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:13,981 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:13,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:13,984 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:13,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:13,993 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:14,217 INFO L321 Elim1Store]: treesize reduction 838, result has 14.2 percent of original size [2022-11-16 20:13:14,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 611 treesize of output 649 [2022-11-16 20:13:14,359 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 20:13:14,427 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-16 20:13:14,428 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 309 treesize of output 298 [2022-11-16 20:13:14,480 INFO L321 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2022-11-16 20:13:14,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 235 treesize of output 194 [2022-11-16 20:13:14,561 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:14,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:14,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:14,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:14,578 INFO L321 Elim1Store]: treesize reduction 41, result has 2.4 percent of original size [2022-11-16 20:13:14,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 419 treesize of output 331 [2022-11-16 20:13:15,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:15,538 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:15,649 INFO L321 Elim1Store]: treesize reduction 358, result has 14.6 percent of original size [2022-11-16 20:13:15,650 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 4 new quantified variables, introduced 7 case distinctions, treesize of input 132 treesize of output 133 [2022-11-16 20:13:15,689 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-16 20:13:15,690 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 82 treesize of output 85 [2022-11-16 20:13:15,712 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-16 20:13:15,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 47 treesize of output 31 [2022-11-16 20:13:15,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:15,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 31 [2022-11-16 20:13:15,930 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:15,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:16,013 INFO L321 Elim1Store]: treesize reduction 358, result has 14.6 percent of original size [2022-11-16 20:13:16,013 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 4 new quantified variables, introduced 7 case distinctions, treesize of input 132 treesize of output 133 [2022-11-16 20:13:16,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 86 treesize of output 72 [2022-11-16 20:13:16,037 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 72 treesize of output 42 [2022-11-16 20:13:16,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:16,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:16,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:16,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:16,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:16,469 INFO L321 Elim1Store]: treesize reduction 84, result has 28.8 percent of original size [2022-11-16 20:13:16,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 244 treesize of output 279 [2022-11-16 20:13:16,519 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:13:19,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [859069266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:13:19,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:13:19,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [5, 5, 5] total 24 [2022-11-16 20:13:19,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386315215] [2022-11-16 20:13:19,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:13:19,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 20:13:19,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:13:19,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 20:13:19,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=467, Unknown=0, NotChecked=0, Total=552 [2022-11-16 20:13:19,021 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand has 16 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 15 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:13:20,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:13:20,897 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2022-11-16 20:13:20,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 20:13:20,897 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 15 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-16 20:13:20,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:13:20,898 INFO L225 Difference]: With dead ends: 44 [2022-11-16 20:13:20,898 INFO L226 Difference]: Without dead ends: 35 [2022-11-16 20:13:20,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 60 SyntacticMatches, 8 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=110, Invalid=646, Unknown=0, NotChecked=0, Total=756 [2022-11-16 20:13:20,902 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 20:13:20,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 144 Invalid, 0 Unknown, 30 Unchecked, 0.2s Time] [2022-11-16 20:13:20,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-16 20:13:20,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-16 20:13:20,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 34 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:13:20,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2022-11-16 20:13:20,908 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 29 [2022-11-16 20:13:20,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:13:20,909 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2022-11-16 20:13:20,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 15 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:13:20,909 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2022-11-16 20:13:20,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 20:13:20,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:13:20,910 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:13:20,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 20:13:21,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-16 20:13:21,116 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-16 20:13:21,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:13:21,117 INFO L85 PathProgramCache]: Analyzing trace with hash 704993137, now seen corresponding path program 1 times [2022-11-16 20:13:21,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:13:21,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765034619] [2022-11-16 20:13:21,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:13:21,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:13:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:13:21,228 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 20:13:21,229 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:13:21,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765034619] [2022-11-16 20:13:21,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765034619] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:13:21,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937481025] [2022-11-16 20:13:21,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:13:21,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:13:21,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:13:21,231 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:13:21,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 20:13:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:13:21,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 20:13:21,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:13:21,364 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 20:13:21,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:13:21,404 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 20:13:21,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937481025] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:13:21,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [10448383] [2022-11-16 20:13:21,407 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-16 20:13:21,408 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:13:21,408 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:13:21,408 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:13:21,408 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:13:21,549 INFO L321 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-16 20:13:21,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-16 20:13:21,697 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-16 20:13:21,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 20:13:21,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 102 [2022-11-16 20:13:21,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 27 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 122 [2022-11-16 20:13:22,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:22,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:22,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:22,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:22,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:22,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:22,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:22,110 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:22,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:22,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:22,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:22,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:22,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:22,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:22,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:22,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:22,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:22,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:22,162 INFO L321 Elim1Store]: treesize reduction 165, result has 4.1 percent of original size [2022-11-16 20:13:22,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 40 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 31 case distinctions, treesize of input 477 treesize of output 451 [2022-11-16 20:13:22,289 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 15 treesize of output 11 [2022-11-16 20:13:22,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:22,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:22,443 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:22,444 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:22,467 INFO L321 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-11-16 20:13:22,467 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 3 case distinctions, treesize of input 46 treesize of output 53 [2022-11-16 20:13:22,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:22,573 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:22,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:22,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:23,023 INFO L321 Elim1Store]: treesize reduction 1125, result has 12.9 percent of original size [2022-11-16 20:13:23,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 590 treesize of output 669 [2022-11-16 20:13:24,134 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:24,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:24,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:24,137 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:24,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 62 [2022-11-16 20:13:24,179 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 20:13:24,221 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 20:13:24,279 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 20:13:24,322 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 20:13:24,343 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 20:13:24,374 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 20:13:24,392 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 20:13:25,306 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:25,307 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 714 treesize of output 680 [2022-11-16 20:13:25,322 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:25,325 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:25,331 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-16 20:13:25,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 680 treesize of output 461 [2022-11-16 20:13:30,444 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:30,445 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:30,532 INFO L321 Elim1Store]: treesize reduction 362, result has 13.6 percent of original size [2022-11-16 20:13:30,532 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 4 new quantified variables, introduced 7 case distinctions, treesize of input 132 treesize of output 129 [2022-11-16 20:13:30,557 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-16 20:13:30,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 70 treesize of output 34 [2022-11-16 20:13:30,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:30,574 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 66 [2022-11-16 20:13:30,583 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:30,584 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:30,585 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:30,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 15 [2022-11-16 20:13:30,671 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:30,672 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:30,740 INFO L321 Elim1Store]: treesize reduction 358, result has 14.6 percent of original size [2022-11-16 20:13:30,740 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 4 new quantified variables, introduced 7 case distinctions, treesize of input 132 treesize of output 133 [2022-11-16 20:13:30,794 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-16 20:13:30,794 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 101 treesize of output 100 [2022-11-16 20:13:30,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:30,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 62 treesize of output 34 [2022-11-16 20:13:30,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:30,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 62 treesize of output 34 [2022-11-16 20:13:31,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:31,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:31,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:31,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:31,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:31,065 INFO L321 Elim1Store]: treesize reduction 84, result has 28.8 percent of original size [2022-11-16 20:13:31,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 244 treesize of output 279 [2022-11-16 20:13:31,119 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:13:37,495 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1748#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* ~SIZE~0 4) (* |ULTIMATE.start_main_~i~0#1| (- 4)) (- 4))) (select (select |#memory_int| |ULTIMATE.start_main_~acopy~0#1.base|) (+ (* ~SIZE~0 4) (* |ULTIMATE.start_main_~i~0#1| (- 4)) (- 4) |ULTIMATE.start_main_~acopy~0#1.offset|))) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4))) (select (select |#memory_int| |ULTIMATE.start_main_~acopy~0#1.base|) (+ (* |ULTIMATE.start_main_~i~0#1| 4) |ULTIMATE.start_main_~acopy~0#1.offset|))) (<= 1 ~SIZE~0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (not (<= |ULTIMATE.start_main_#t~post9#1| 2147483646)) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start_main_~acopy~0#1.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~i~0#1| (+ ~SIZE~0 2147483647)) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_#t~post9#1| |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-16 20:13:37,495 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 20:13:37,495 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:13:37,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 20:13:37,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143275421] [2022-11-16 20:13:37,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 20:13:37,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 20:13:37,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:13:37,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 20:13:37,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2022-11-16 20:13:37,497 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:13:37,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:13:37,584 INFO L93 Difference]: Finished difference Result 69 states and 71 transitions. [2022-11-16 20:13:37,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 20:13:37,584 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-16 20:13:37,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:13:37,585 INFO L225 Difference]: With dead ends: 69 [2022-11-16 20:13:37,585 INFO L226 Difference]: Without dead ends: 40 [2022-11-16 20:13:37,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 72 SyntacticMatches, 7 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2022-11-16 20:13:37,586 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 13 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:13:37,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 29 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:13:37,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-16 20:13:37,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2022-11-16 20:13:37,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 37 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:13:37,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2022-11-16 20:13:37,593 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 32 [2022-11-16 20:13:37,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:13:37,593 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2022-11-16 20:13:37,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:13:37,594 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2022-11-16 20:13:37,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-16 20:13:37,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:13:37,595 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:13:37,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 20:13:37,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 20:13:37,800 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-16 20:13:37,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:13:37,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1236641101, now seen corresponding path program 2 times [2022-11-16 20:13:37,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:13:37,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242727562] [2022-11-16 20:13:37,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:13:37,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:13:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:13:37,942 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 20:13:37,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:13:37,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242727562] [2022-11-16 20:13:37,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242727562] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:13:37,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056992044] [2022-11-16 20:13:37,943 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 20:13:37,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:13:37,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:13:37,944 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:13:37,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 20:13:38,013 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 20:13:38,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 20:13:38,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 20:13:38,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:13:38,154 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 20:13:38,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:13:38,299 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 20:13:38,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056992044] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:13:38,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2003990219] [2022-11-16 20:13:38,302 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-16 20:13:38,302 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:13:38,302 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:13:38,303 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:13:38,303 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:13:38,431 INFO L321 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-16 20:13:38,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-16 20:13:38,554 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-16 20:13:38,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 20:13:38,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 102 [2022-11-16 20:13:38,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:38,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 27 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 117 [2022-11-16 20:13:38,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:38,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:38,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:38,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:38,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:38,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:38,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:38,872 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:38,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:38,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:38,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:38,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:38,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:38,879 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:38,919 INFO L321 Elim1Store]: treesize reduction 72, result has 24.2 percent of original size [2022-11-16 20:13:38,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 30 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 21 case distinctions, treesize of input 461 treesize of output 442 [2022-11-16 20:13:39,165 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 15 treesize of output 11 [2022-11-16 20:13:39,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:39,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:39,283 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:39,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:39,305 INFO L321 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-11-16 20:13:39,306 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 3 case distinctions, treesize of input 46 treesize of output 53 [2022-11-16 20:13:39,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:39,387 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:39,395 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:39,398 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:39,828 INFO L321 Elim1Store]: treesize reduction 1103, result has 14.6 percent of original size [2022-11-16 20:13:39,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 590 treesize of output 691 [2022-11-16 20:13:40,405 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-16 20:13:40,405 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 2224 treesize of output 2139 [2022-11-16 20:13:40,864 INFO L321 Elim1Store]: treesize reduction 52, result has 28.8 percent of original size [2022-11-16 20:13:40,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2122 treesize of output 2028 [2022-11-16 20:13:42,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:42,950 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:13:42,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:13:42,987 INFO L321 Elim1Store]: treesize reduction 44, result has 36.2 percent of original size [2022-11-16 20:13:42,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 2122 treesize of output 1830 [2022-11-16 20:14:07,698 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:14:07,698 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:14:07,785 INFO L321 Elim1Store]: treesize reduction 362, result has 13.6 percent of original size [2022-11-16 20:14:07,785 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 4 new quantified variables, introduced 7 case distinctions, treesize of input 132 treesize of output 129 [2022-11-16 20:14:07,824 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-16 20:14:07,825 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 86 treesize of output 85 [2022-11-16 20:14:07,839 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-16 20:14:07,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 68 treesize of output 32 [2022-11-16 20:14:07,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:14:07,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:14:07,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 19 [2022-11-16 20:14:08,046 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:14:08,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:14:08,141 INFO L321 Elim1Store]: treesize reduction 358, result has 14.6 percent of original size [2022-11-16 20:14:08,142 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 4 new quantified variables, introduced 7 case distinctions, treesize of input 132 treesize of output 133 [2022-11-16 20:14:08,157 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 72 treesize of output 42 [2022-11-16 20:14:08,193 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-16 20:14:08,193 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 109 treesize of output 110 [2022-11-16 20:14:08,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:14:08,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 31 [2022-11-16 20:14:08,225 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:14:08,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:14:08,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 31 [2022-11-16 20:14:08,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:14:08,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:14:08,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:14:08,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:14:08,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:14:08,381 INFO L321 Elim1Store]: treesize reduction 84, result has 28.8 percent of original size [2022-11-16 20:14:08,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 244 treesize of output 279 [2022-11-16 20:14:08,423 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:14:10,635 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2098#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* ~SIZE~0 4) (* |ULTIMATE.start_main_~i~0#1| (- 4)) (- 4))) (select (select |#memory_int| |ULTIMATE.start_main_~acopy~0#1.base|) (+ (* ~SIZE~0 4) (* |ULTIMATE.start_main_~i~0#1| (- 4)) (- 4) |ULTIMATE.start_main_~acopy~0#1.offset|))) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4))) (select (select |#memory_int| |ULTIMATE.start_main_~acopy~0#1.base|) (+ (* |ULTIMATE.start_main_~i~0#1| 4) |ULTIMATE.start_main_~acopy~0#1.offset|))) (<= 1 ~SIZE~0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (not (<= |ULTIMATE.start_main_#t~post9#1| 2147483646)) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start_main_~acopy~0#1.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~i~0#1| (+ ~SIZE~0 2147483647)) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_#t~post9#1| |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-16 20:14:10,636 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 20:14:10,636 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:14:10,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 3] total 12 [2022-11-16 20:14:10,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843877700] [2022-11-16 20:14:10,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 20:14:10,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 20:14:10,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:14:10,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 20:14:10,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2022-11-16 20:14:10,638 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand has 13 states, 12 states have (on average 7.666666666666667) internal successors, (92), 13 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:14:10,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:14:10,903 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2022-11-16 20:14:10,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 20:14:10,904 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.666666666666667) internal successors, (92), 13 states have internal predecessors, (92), 0 states have call successors, (0), 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 35 [2022-11-16 20:14:10,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:14:10,904 INFO L225 Difference]: With dead ends: 55 [2022-11-16 20:14:10,904 INFO L226 Difference]: Without dead ends: 54 [2022-11-16 20:14:10,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 81 SyntacticMatches, 6 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=212, Invalid=844, Unknown=0, NotChecked=0, Total=1056 [2022-11-16 20:14:10,906 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 96 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:14:10,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 10 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:14:10,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-16 20:14:10,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 37. [2022-11-16 20:14:10,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 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) [2022-11-16 20:14:10,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2022-11-16 20:14:10,912 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 35 [2022-11-16 20:14:10,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:14:10,913 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2022-11-16 20:14:10,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.666666666666667) internal successors, (92), 13 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:14:10,913 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2022-11-16 20:14:10,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-16 20:14:10,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:14:10,914 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-16 20:14:10,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 20:14:11,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:14:11,119 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-16 20:14:11,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:14:11,120 INFO L85 PathProgramCache]: Analyzing trace with hash -318831435, now seen corresponding path program 1 times [2022-11-16 20:14:11,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:14:11,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821358998] [2022-11-16 20:14:11,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:14:11,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:14:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:14:11,221 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 20:14:11,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:14:11,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821358998] [2022-11-16 20:14:11,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821358998] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:14:11,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706619769] [2022-11-16 20:14:11,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:14:11,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:14:11,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:14:11,223 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:14:11,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 20:14:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:14:11,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 20:14:11,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:14:11,393 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 20:14:11,393 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 20:14:11,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706619769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:14:11,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 20:14:11,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-16 20:14:11,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266798584] [2022-11-16 20:14:11,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:14:11,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 20:14:11,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:14:11,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 20:14:11,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 20:14:11,396 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:14:11,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:14:11,474 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2022-11-16 20:14:11,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 20:14:11,474 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 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 36 [2022-11-16 20:14:11,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:14:11,474 INFO L225 Difference]: With dead ends: 37 [2022-11-16 20:14:11,474 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 20:14:11,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-16 20:14:11,476 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 6 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:14:11,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 18 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:14:11,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 20:14:11,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 20:14:11,477 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) [2022-11-16 20:14:11,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 20:14:11,477 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2022-11-16 20:14:11,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:14:11,477 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 20:14:11,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:14:11,478 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 20:14:11,478 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 20:14:11,480 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2022-11-16 20:14:11,480 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2022-11-16 20:14:11,480 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2022-11-16 20:14:11,480 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2022-11-16 20:14:11,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2022-11-16 20:14:11,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2022-11-16 20:14:11,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2022-11-16 20:14:11,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2022-11-16 20:14:11,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2022-11-16 20:14:11,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2022-11-16 20:14:11,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2022-11-16 20:14:11,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2022-11-16 20:14:11,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2022-11-16 20:14:11,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2022-11-16 20:14:11,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2022-11-16 20:14:11,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2022-11-16 20:14:11,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-16 20:14:11,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:14:11,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 20:14:12,234 INFO L899 garLoopResultBuilder]: For program point L35-2(line 35) no Hoare annotation was computed. [2022-11-16 20:14:12,234 INFO L899 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2022-11-16 20:14:12,234 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-11-16 20:14:12,234 INFO L899 garLoopResultBuilder]: For program point L35-4(line 35) no Hoare annotation was computed. [2022-11-16 20:14:12,235 INFO L899 garLoopResultBuilder]: For program point L35-5(line 35) no Hoare annotation was computed. [2022-11-16 20:14:12,235 INFO L899 garLoopResultBuilder]: For program point L35-6(line 35) no Hoare annotation was computed. [2022-11-16 20:14:12,235 INFO L899 garLoopResultBuilder]: For program point L35-7(line 35) no Hoare annotation was computed. [2022-11-16 20:14:12,235 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 44) no Hoare annotation was computed. [2022-11-16 20:14:12,235 INFO L899 garLoopResultBuilder]: For program point L19-1(lines 19 44) no Hoare annotation was computed. [2022-11-16 20:14:12,235 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-11-16 20:14:12,236 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-16 20:14:12,236 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-16 20:14:12,236 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 20:14:12,236 INFO L902 garLoopResultBuilder]: At program point L45(lines 16 46) the Hoare annotation is: true [2022-11-16 20:14:12,236 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-16 20:14:12,236 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-16 20:14:12,237 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-16 20:14:12,237 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-16 20:14:12,237 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-16 20:14:12,237 INFO L899 garLoopResultBuilder]: For program point L40-3(line 40) no Hoare annotation was computed. [2022-11-16 20:14:12,237 INFO L899 garLoopResultBuilder]: For program point L40-4(line 40) no Hoare annotation was computed. [2022-11-16 20:14:12,237 INFO L895 garLoopResultBuilder]: At program point L40-5(lines 40 43) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= 2 ~SIZE~0) (<= 100000 ~MAX~0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start_main_~acopy~0#1.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~MAX~0 100000) (= |#NULL.base| 0)) [2022-11-16 20:14:12,238 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-16 20:14:12,238 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-11-16 20:14:12,238 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 20:14:12,238 INFO L899 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2022-11-16 20:14:12,238 INFO L899 garLoopResultBuilder]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2022-11-16 20:14:12,238 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-16 20:14:12,239 INFO L899 garLoopResultBuilder]: For program point L33-5(line 33) no Hoare annotation was computed. [2022-11-16 20:14:12,239 INFO L899 garLoopResultBuilder]: For program point L33-6(line 33) no Hoare annotation was computed. [2022-11-16 20:14:12,239 INFO L895 garLoopResultBuilder]: At program point L33-7(lines 33 37) the Hoare annotation is: (and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (<= 2 ~SIZE~0) (< |ULTIMATE.start_main_~i~0#1| 2147483647) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start_main_~acopy~0#1.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0)) [2022-11-16 20:14:12,239 INFO L899 garLoopResultBuilder]: For program point L33-8(lines 33 37) no Hoare annotation was computed. [2022-11-16 20:14:12,239 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2022-11-16 20:14:12,239 INFO L899 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed. [2022-11-16 20:14:12,240 INFO L895 garLoopResultBuilder]: At program point L25-5(lines 25 28) the Hoare annotation is: (and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (or (<= 1 |ULTIMATE.start_main_~i~0#1|) (let ((.cse2 (select |#memory_int| 1)) (.cse1 (* 4 (mod ~SIZE~0 1073741824))) (.cse0 (select |#memory_int| 2))) (and (= 7 (select |#length| 2)) (= (select |#length| 3) 12) (< |ULTIMATE.start_main_~a~0#1.base| |#StackHeapBarrier|) (< ~SIZE~0 ~MAX~0) (< |ULTIMATE.start_main_~acopy~0#1.base| |#StackHeapBarrier|) (= (select .cse0 5) 99) (not (= 3 |ULTIMATE.start_main_~acopy~0#1.base|)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select .cse0 1) 99) (= (select .cse0 4) 46) (= 116 (select .cse0 0)) (= (select |#length| |ULTIMATE.start_main_~a~0#1.base|) .cse1) (= (select |#valid| 1) 1) (= (select .cse0 6) 0) (= 1 (select |#valid| |ULTIMATE.start_main_~acopy~0#1.base|)) (not (= |ULTIMATE.start_main_~acopy~0#1.base| |ULTIMATE.start_main_~a~0#1.base|)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse2 0) 48) (not (= 3 |ULTIMATE.start_main_~a~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~a~0#1.base|) 1) (= (select .cse2 1) 0) (= 121 (select .cse0 3)) (= (select |#length| |ULTIMATE.start_main_~acopy~0#1.base|) .cse1) (< 0 |#StackHeapBarrier|) (= 112 (select .cse0 2))))) (= ~MAX~0 100000) (<= 2 ~SIZE~0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~acopy~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-11-16 20:14:12,240 INFO L899 garLoopResultBuilder]: For program point L25-6(lines 20 44) no Hoare annotation was computed. [2022-11-16 20:14:12,240 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-11-16 20:14:12,240 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-11-16 20:14:12,241 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-11-16 20:14:12,241 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-16 20:14:12,241 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-11-16 20:14:12,241 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2022-11-16 20:14:12,244 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:14:12,246 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 20:14:12,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 08:14:12 BoogieIcfgContainer [2022-11-16 20:14:12,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 20:14:12,277 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 20:14:12,277 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 20:14:12,278 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 20:14:12,278 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:12:44" (3/4) ... [2022-11-16 20:14:12,281 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 20:14:12,291 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-16 20:14:12,291 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-16 20:14:12,292 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 20:14:12,292 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 20:14:12,292 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 20:14:12,315 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((a == 0 && MAX == 100000) && 2 <= SIZE) && i < 2147483647) && SIZE <= 100000) && 0 <= \old(cond)) && 0 <= i) && 0 <= cond) && acopy == 0) && #NULL == 0) && \old(cond) <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && cond <= 1) && #NULL == 0 [2022-11-16 20:14:12,315 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((0 <= a && 2 <= SIZE) && 100000 <= MAX) && SIZE <= 100000) && 0 <= \old(cond)) && 0 <= i) && 0 <= cond) && acopy == 0) && #NULL == 0) && \old(cond) <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && cond <= 1) && a <= 0) && MAX <= 100000) && #NULL == 0 [2022-11-16 20:14:12,329 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 20:14:12,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 20:14:12,330 INFO L158 Benchmark]: Toolchain (without parser) took 89087.39ms. Allocated memory was 100.7MB in the beginning and 446.7MB in the end (delta: 346.0MB). Free memory was 66.4MB in the beginning and 309.3MB in the end (delta: -242.8MB). Peak memory consumption was 102.4MB. Max. memory is 16.1GB. [2022-11-16 20:14:12,330 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 100.7MB. Free memory was 70.9MB in the beginning and 70.9MB in the end (delta: 27.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:14:12,330 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.03ms. Allocated memory is still 100.7MB. Free memory was 66.2MB in the beginning and 76.8MB in the end (delta: -10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 20:14:12,331 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.11ms. Allocated memory is still 100.7MB. Free memory was 76.4MB in the beginning and 74.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:14:12,331 INFO L158 Benchmark]: Boogie Preprocessor took 48.13ms. Allocated memory is still 100.7MB. Free memory was 74.9MB in the beginning and 73.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:14:12,331 INFO L158 Benchmark]: RCFGBuilder took 635.44ms. Allocated memory is still 100.7MB. Free memory was 73.5MB in the beginning and 56.8MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-16 20:14:12,332 INFO L158 Benchmark]: TraceAbstraction took 87971.76ms. Allocated memory was 100.7MB in the beginning and 446.7MB in the end (delta: 346.0MB). Free memory was 56.0MB in the beginning and 312.4MB in the end (delta: -256.3MB). Peak memory consumption was 92.6MB. Max. memory is 16.1GB. [2022-11-16 20:14:12,332 INFO L158 Benchmark]: Witness Printer took 52.00ms. Allocated memory is still 446.7MB. Free memory was 312.4MB in the beginning and 309.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:14:12,334 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 100.7MB. Free memory was 70.9MB in the beginning and 70.9MB in the end (delta: 27.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.03ms. Allocated memory is still 100.7MB. Free memory was 66.2MB in the beginning and 76.8MB in the end (delta: -10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.11ms. Allocated memory is still 100.7MB. Free memory was 76.4MB in the beginning and 74.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.13ms. Allocated memory is still 100.7MB. Free memory was 74.9MB in the beginning and 73.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 635.44ms. Allocated memory is still 100.7MB. Free memory was 73.5MB in the beginning and 56.8MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 87971.76ms. Allocated memory was 100.7MB in the beginning and 446.7MB in the end (delta: 346.0MB). Free memory was 56.0MB in the beginning and 312.4MB in the end (delta: -256.3MB). Peak memory consumption was 92.6MB. Max. memory is 16.1GB. * Witness Printer took 52.00ms. Allocated memory is still 446.7MB. Free memory was 312.4MB in the beginning and 309.3MB 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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: 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, 42 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 87.8s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 320 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 320 mSDsluCounter, 336 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 61 IncrementalHoareTripleChecker+Unchecked, 178 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 916 IncrementalHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 158 mSDtfsCounter, 916 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 476 GetRequests, 312 SyntacticMatches, 30 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1235 ImplicationChecksByTransitivity, 16.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=5, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 93 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 12 NumberOfFragments, 273 HoareAnnotationTreeSize, 4 FomulaSimplifications, 268 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 850 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 413 NumberOfCodeBlocks, 394 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 517 ConstructedInterpolants, 0 QuantifiedInterpolants, 1299 SizeOfPredicates, 16 NumberOfNonLiveVariables, 768 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 23 InterpolantComputations, 7 PerfectInterpolantSequences, 115/173 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: OVERALL_TIME: 25.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 50, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 170, TOOLS_POST_TIME: 23.6s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 170, TOOLS_QUANTIFIERELIM_TIME: 23.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 5.8s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 263, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 14, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 11, DOMAIN_WIDEN_TIME: 0.9s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 17, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 50, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 6, LOOP_SUMMARIZER_CACHE_MISSES: 6, LOOP_SUMMARIZER_OVERALL_TIME: 22.4s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 22.4s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 17, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 1394, DAG_COMPRESSION_RETAINED_NODES: 171, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: ((((((((((((a == 0 && MAX == 100000) && 2 <= SIZE) && i < 2147483647) && SIZE <= 100000) && 0 <= \old(cond)) && 0 <= i) && 0 <= cond) && acopy == 0) && #NULL == 0) && \old(cond) <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && cond <= 1) && #NULL == 0 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((((((((0 <= a && 2 <= SIZE) && 100000 <= MAX) && SIZE <= 100000) && 0 <= \old(cond)) && 0 <= i) && 0 <= cond) && acopy == 0) && #NULL == 0) && \old(cond) <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && cond <= 1) && a <= 0) && MAX <= 100000) && #NULL == 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ((((((((a == 0 && (1 <= i || ((((((((((((((((((((((((((7 == unknown-#length-unknown[2] && unknown-#length-unknown[3] == 12) && a < unknown-#StackHeapBarrier-unknown) && SIZE < MAX) && acopy < unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[2][5] == 99) && !(3 == acopy)) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && unknown-#memory_int-unknown[2][1] == 99) && unknown-#memory_int-unknown[2][4] == 46) && 116 == unknown-#memory_int-unknown[2][0]) && unknown-#length-unknown[a] == 4 * (SIZE % 1073741824)) && \valid[1] == 1) && unknown-#memory_int-unknown[2][6] == 0) && 1 == \valid[acopy]) && !(acopy == a)) && \valid[0] == 0) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && !(3 == a)) && \valid[a] == 1) && unknown-#memory_int-unknown[1][1] == 0) && 121 == unknown-#memory_int-unknown[2][3]) && unknown-#length-unknown[acopy] == 4 * (SIZE % 1073741824)) && 0 < unknown-#StackHeapBarrier-unknown) && 112 == unknown-#memory_int-unknown[2][2]))) && MAX == 100000) && 2 <= SIZE) && SIZE <= 100000) && 0 <= i) && acopy == 0) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 RESULT: Ultimate proved your program to be correct! [2022-11-16 20:14:12,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4b4b609-f4d9-4663-8d80-2efd82df1993/bin/utaipan-Xvt2sAort0/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