./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fb567b374acd8bb9754dd21f812a202296c7800faf8be127cd0c1294b076cd75 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 13:42:40,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:42:40,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:42:41,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:42:41,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:42:41,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:42:41,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:42:41,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:42:41,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:42:41,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:42:41,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:42:41,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:42:41,047 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:42:41,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:42:41,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:42:41,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:42:41,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:42:41,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:42:41,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:42:41,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:42:41,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:42:41,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:42:41,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:42:41,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:42:41,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:42:41,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:42:41,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:42:41,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:42:41,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:42:41,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:42:41,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:42:41,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:42:41,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:42:41,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:42:41,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:42:41,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:42:41,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:42:41,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:42:41,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:42:41,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:42:41,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:42:41,097 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-23 13:42:41,133 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:42:41,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:42:41,134 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:42:41,134 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:42:41,135 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:42:41,135 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:42:41,135 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:42:41,136 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:42:41,136 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:42:41,136 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:42:41,137 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:42:41,137 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:42:41,137 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:42:41,138 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:42:41,138 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:42:41,138 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:42:41,138 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:42:41,139 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:42:41,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:42:41,140 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 13:42:41,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:42:41,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:42:41,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:42:41,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:42:41,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:42:41,141 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 13:42:41,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:42:41,142 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:42:41,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:42:41,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:42:41,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:42:41,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:42:41,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:42:41,143 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:42:41,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:42:41,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:42:41,144 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:42:41,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:42:41,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:42:41,144 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:42:41,146 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_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb567b374acd8bb9754dd21f812a202296c7800faf8be127cd0c1294b076cd75 [2022-11-23 13:42:41,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:42:41,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:42:41,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:42:41,462 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:42:41,463 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:42:41,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2022-11-23 13:42:44,501 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:42:44,718 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:42:44,719 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2022-11-23 13:42:44,725 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/data/6a66dd0d7/f96c1d58e70f4b4f95c9077936d1f821/FLAGcb021400c [2022-11-23 13:42:44,745 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/data/6a66dd0d7/f96c1d58e70f4b4f95c9077936d1f821 [2022-11-23 13:42:44,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:42:44,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:42:44,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:42:44,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:42:44,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:42:44,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:42:44" (1/1) ... [2022-11-23 13:42:44,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@170558cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44, skipping insertion in model container [2022-11-23 13:42:44,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:42:44" (1/1) ... [2022-11-23 13:42:44,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:42:44,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:42:44,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:42:44,962 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:42:44,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:42:44,983 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:42:44,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44 WrapperNode [2022-11-23 13:42:44,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:42:44,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:42:44,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:42:44,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:42:44,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2022-11-23 13:42:44,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2022-11-23 13:42:45,020 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2022-11-23 13:42:45,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:42:45,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:42:45,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:42:45,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:42:45,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2022-11-23 13:42:45,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2022-11-23 13:42:45,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2022-11-23 13:42:45,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2022-11-23 13:42:45,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2022-11-23 13:42:45,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2022-11-23 13:42:45,043 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2022-11-23 13:42:45,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2022-11-23 13:42:45,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:42:45,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:42:45,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:42:45,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:42:45,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2022-11-23 13:42:45,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:42:45,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:42:45,091 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:42:45,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:42:45,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:42:45,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:42:45,230 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:42:45,231 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:42:45,393 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:42:45,413 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:42:45,413 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-23 13:42:45,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:45 BoogieIcfgContainer [2022-11-23 13:42:45,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:42:45,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:42:45,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:42:45,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:42:45,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:42:44" (1/3) ... [2022-11-23 13:42:45,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c40fd05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:42:45, skipping insertion in model container [2022-11-23 13:42:45,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (2/3) ... [2022-11-23 13:42:45,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c40fd05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:42:45, skipping insertion in model container [2022-11-23 13:42:45,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:45" (3/3) ... [2022-11-23 13:42:45,425 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2022-11-23 13:42:45,445 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:42:45,445 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-23 13:42:45,495 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:42:45,502 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;@fcdc58d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:42:45,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-23 13:42:45,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:45,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 13:42:45,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:42:45,516 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 13:42:45,516 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 13:42:45,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:42:45,527 INFO L85 PathProgramCache]: Analyzing trace with hash 90669658, now seen corresponding path program 1 times [2022-11-23 13:42:45,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:42:45,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512520940] [2022-11-23 13:42:45,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:45,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:42:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:45,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:42:45,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:42:45,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512520940] [2022-11-23 13:42:45,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512520940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:42:45,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:42:45,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:42:45,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627245009] [2022-11-23 13:42:45,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:42:45,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:42:45,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:42:45,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:42:45,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:42:45,858 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) 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) [2022-11-23 13:42:45,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:42:45,956 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2022-11-23 13:42:45,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:42:45,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) 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 [2022-11-23 13:42:45,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:42:45,985 INFO L225 Difference]: With dead ends: 66 [2022-11-23 13:42:45,986 INFO L226 Difference]: Without dead ends: 40 [2022-11-23 13:42:45,989 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 [2022-11-23 13:42:45,992 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 19 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:42:45,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 33 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:42:46,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-23 13:42:46,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 26. [2022-11-23 13:42:46,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 25 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) [2022-11-23 13:42:46,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2022-11-23 13:42:46,028 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 5 [2022-11-23 13:42:46,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:42:46,029 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-11-23 13:42:46,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) 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) [2022-11-23 13:42:46,029 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2022-11-23 13:42:46,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 13:42:46,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:42:46,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 13:42:46,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 13:42:46,031 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 13:42:46,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:42:46,032 INFO L85 PathProgramCache]: Analyzing trace with hash 90668204, now seen corresponding path program 1 times [2022-11-23 13:42:46,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:42:46,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796231465] [2022-11-23 13:42:46,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:46,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:42:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:46,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:42:46,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:42:46,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796231465] [2022-11-23 13:42:46,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796231465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:42:46,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:42:46,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:42:46,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417238071] [2022-11-23 13:42:46,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:42:46,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:42:46,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:42:46,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:42:46,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:42:46,073 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 3 states, 2 states have (on average 2.5) 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) [2022-11-23 13:42:46,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:42:46,088 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2022-11-23 13:42:46,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:42:46,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) 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 [2022-11-23 13:42:46,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:42:46,090 INFO L225 Difference]: With dead ends: 27 [2022-11-23 13:42:46,090 INFO L226 Difference]: Without dead ends: 26 [2022-11-23 13:42:46,090 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 [2022-11-23 13:42:46,092 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 18 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:42:46,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 19 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:42:46,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-23 13:42:46,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2022-11-23 13:42:46,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:46,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2022-11-23 13:42:46,098 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 5 [2022-11-23 13:42:46,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:42:46,099 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2022-11-23 13:42:46,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) 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) [2022-11-23 13:42:46,099 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2022-11-23 13:42:46,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 13:42:46,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:42:46,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 13:42:46,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 13:42:46,101 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 13:42:46,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:42:46,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1484207813, now seen corresponding path program 1 times [2022-11-23 13:42:46,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:42:46,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236327905] [2022-11-23 13:42:46,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:46,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:42:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:46,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:42:46,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:42:46,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236327905] [2022-11-23 13:42:46,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236327905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:42:46,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:42:46,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:42:46,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66162285] [2022-11-23 13:42:46,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:42:46,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:42:46,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:42:46,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:42:46,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:42:46,158 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:46,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:42:46,219 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2022-11-23 13:42:46,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:42:46,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 13:42:46,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:42:46,221 INFO L225 Difference]: With dead ends: 43 [2022-11-23 13:42:46,226 INFO L226 Difference]: Without dead ends: 42 [2022-11-23 13:42:46,226 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 [2022-11-23 13:42:46,228 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 14 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:42:46,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 30 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:42:46,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-23 13:42:46,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 29. [2022-11-23 13:42:46,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:46,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-11-23 13:42:46,240 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 6 [2022-11-23 13:42:46,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:42:46,240 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-11-23 13:42:46,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:46,241 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2022-11-23 13:42:46,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 13:42:46,242 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:42:46,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 13:42:46,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 13:42:46,243 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 13:42:46,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:42:46,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1484252915, now seen corresponding path program 1 times [2022-11-23 13:42:46,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:42:46,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771106751] [2022-11-23 13:42:46,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:46,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:42:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:46,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:42:46,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:42:46,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771106751] [2022-11-23 13:42:46,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771106751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:42:46,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:42:46,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:42:46,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068486660] [2022-11-23 13:42:46,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:42:46,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:42:46,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:42:46,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:42:46,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:42:46,327 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:46,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:42:46,350 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2022-11-23 13:42:46,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:42:46,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 13:42:46,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:42:46,351 INFO L225 Difference]: With dead ends: 38 [2022-11-23 13:42:46,352 INFO L226 Difference]: Without dead ends: 37 [2022-11-23 13:42:46,352 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 [2022-11-23 13:42:46,353 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 5 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:42:46,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 36 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:42:46,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-23 13:42:46,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2022-11-23 13:42:46,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 25 states have (on average 1.52) internal successors, (38), 31 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:46,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2022-11-23 13:42:46,362 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 6 [2022-11-23 13:42:46,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:42:46,362 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2022-11-23 13:42:46,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:46,362 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2022-11-23 13:42:46,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 13:42:46,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:42:46,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:42:46,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 13:42:46,364 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 13:42:46,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:42:46,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1232799954, now seen corresponding path program 1 times [2022-11-23 13:42:46,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:42:46,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732775599] [2022-11-23 13:42:46,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:46,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:42:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:46,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:42:46,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:42:46,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732775599] [2022-11-23 13:42:46,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732775599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:42:46,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:42:46,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:42:46,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588132708] [2022-11-23 13:42:46,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:42:46,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:42:46,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:42:46,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:42:46,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:42:46,430 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:46,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:42:46,446 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2022-11-23 13:42:46,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:42:46,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-23 13:42:46,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:42:46,448 INFO L225 Difference]: With dead ends: 32 [2022-11-23 13:42:46,448 INFO L226 Difference]: Without dead ends: 31 [2022-11-23 13:42:46,448 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 [2022-11-23 13:42:46,450 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:42:46,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 15 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:42:46,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-23 13:42:46,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-23 13:42:46,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.48) internal successors, (37), 30 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:46,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2022-11-23 13:42:46,458 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 7 [2022-11-23 13:42:46,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:42:46,458 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-11-23 13:42:46,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:46,459 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2022-11-23 13:42:46,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 13:42:46,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:42:46,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:42:46,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 13:42:46,460 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 13:42:46,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:42:46,461 INFO L85 PathProgramCache]: Analyzing trace with hash -437907025, now seen corresponding path program 1 times [2022-11-23 13:42:46,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:42:46,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527858022] [2022-11-23 13:42:46,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:46,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:42:46,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:46,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:42:46,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:42:46,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527858022] [2022-11-23 13:42:46,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527858022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:42:46,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:42:46,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 13:42:46,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35005144] [2022-11-23 13:42:46,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:42:46,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:42:46,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:42:46,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:42:46,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:42:46,502 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:46,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:42:46,516 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2022-11-23 13:42:46,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:42:46,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-23 13:42:46,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:42:46,518 INFO L225 Difference]: With dead ends: 31 [2022-11-23 13:42:46,518 INFO L226 Difference]: Without dead ends: 30 [2022-11-23 13:42:46,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:42:46,520 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:42:46,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 14 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:42:46,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-23 13:42:46,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-23 13:42:46,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.44) internal successors, (36), 29 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) [2022-11-23 13:42:46,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2022-11-23 13:42:46,527 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 8 [2022-11-23 13:42:46,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:42:46,527 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2022-11-23 13:42:46,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:46,528 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2022-11-23 13:42:46,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 13:42:46,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:42:46,529 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-11-23 13:42:46,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 13:42:46,529 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 13:42:46,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:42:46,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1219415532, now seen corresponding path program 1 times [2022-11-23 13:42:46,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:42:46,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122428429] [2022-11-23 13:42:46,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:46,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:42:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:46,608 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:42:46,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:42:46,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122428429] [2022-11-23 13:42:46,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122428429] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:42:46,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403347795] [2022-11-23 13:42:46,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:46,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:42:46,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:42:46,618 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:42:46,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 13:42:46,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:46,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 13:42:46,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:42:46,725 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:42:46,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:42:46,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:42:46,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403347795] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:42:46,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2090832743] [2022-11-23 13:42:46,795 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-23 13:42:46,795 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:42:46,799 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:42:46,804 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:42:46,805 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 13:42:47,235 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 13:42:47,786 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '607#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483648)) (<= 0 |ULTIMATE.start_main_~m~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= |ULTIMATE.start_main_~m~0#1| 0) (<= 0 |ULTIMATE.start_main_~N~0#1|) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~j~0#1| 0) (<= 0 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~N~0#1| 2147483647))' at error location [2022-11-23 13:42:47,786 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 13:42:47,786 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 13:42:47,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-23 13:42:47,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757890107] [2022-11-23 13:42:47,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 13:42:47,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 13:42:47,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:42:47,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 13:42:47,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-23 13:42:47,788 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:47,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:42:47,883 INFO L93 Difference]: Finished difference Result 83 states and 98 transitions. [2022-11-23 13:42:47,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 13:42:47,884 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 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 10 [2022-11-23 13:42:47,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:42:47,889 INFO L225 Difference]: With dead ends: 83 [2022-11-23 13:42:47,889 INFO L226 Difference]: Without dead ends: 82 [2022-11-23 13:42:47,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-23 13:42:47,892 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 77 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:42:47,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 56 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:42:47,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-23 13:42:47,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 42. [2022-11-23 13:42:47,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 41 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) [2022-11-23 13:42:47,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2022-11-23 13:42:47,910 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 10 [2022-11-23 13:42:47,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:42:47,911 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2022-11-23 13:42:47,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:47,912 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2022-11-23 13:42:47,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 13:42:47,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:42:47,912 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:42:47,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 13:42:48,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:42:48,113 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 13:42:48,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:42:48,114 INFO L85 PathProgramCache]: Analyzing trace with hash 78146225, now seen corresponding path program 1 times [2022-11-23 13:42:48,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:42:48,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601892080] [2022-11-23 13:42:48,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:48,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:42:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:48,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:42:48,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:42:48,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601892080] [2022-11-23 13:42:48,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601892080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:42:48,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:42:48,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:42:48,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991082986] [2022-11-23 13:42:48,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:42:48,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:42:48,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:42:48,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:42:48,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:42:48,155 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:48,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:42:48,216 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2022-11-23 13:42:48,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 13:42:48,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-23 13:42:48,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:42:48,222 INFO L225 Difference]: With dead ends: 45 [2022-11-23 13:42:48,223 INFO L226 Difference]: Without dead ends: 43 [2022-11-23 13:42:48,225 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 [2022-11-23 13:42:48,229 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 25 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:42:48,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 11 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:42:48,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-23 13:42:48,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 36. [2022-11-23 13:42:48,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 33 states have (on average 1.303030303030303) internal successors, (43), 35 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) [2022-11-23 13:42:48,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2022-11-23 13:42:48,235 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 10 [2022-11-23 13:42:48,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:42:48,236 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2022-11-23 13:42:48,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:48,236 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2022-11-23 13:42:48,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 13:42:48,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:42:48,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:42:48,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 13:42:48,243 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 13:42:48,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:42:48,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1872434247, now seen corresponding path program 1 times [2022-11-23 13:42:48,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:42:48,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836987288] [2022-11-23 13:42:48,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:48,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:42:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:48,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:42:48,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:42:48,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836987288] [2022-11-23 13:42:48,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836987288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:42:48,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:42:48,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:42:48,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110763204] [2022-11-23 13:42:48,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:42:48,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:42:48,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:42:48,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:42:48,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:42:48,299 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:48,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:42:48,363 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2022-11-23 13:42:48,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 13:42:48,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-23 13:42:48,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:42:48,364 INFO L225 Difference]: With dead ends: 66 [2022-11-23 13:42:48,364 INFO L226 Difference]: Without dead ends: 64 [2022-11-23 13:42:48,365 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 [2022-11-23 13:42:48,370 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 32 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:42:48,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 34 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:42:48,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-23 13:42:48,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 47. [2022-11-23 13:42:48,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 46 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:48,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2022-11-23 13:42:48,388 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 11 [2022-11-23 13:42:48,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:42:48,388 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2022-11-23 13:42:48,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:48,389 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2022-11-23 13:42:48,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 13:42:48,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:42:48,390 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:42:48,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 13:42:48,390 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 13:42:48,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:42:48,390 INFO L85 PathProgramCache]: Analyzing trace with hash 180298942, now seen corresponding path program 1 times [2022-11-23 13:42:48,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:42:48,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766837315] [2022-11-23 13:42:48,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:48,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:42:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:48,444 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:42:48,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:42:48,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766837315] [2022-11-23 13:42:48,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766837315] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:42:48,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301475901] [2022-11-23 13:42:48,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:48,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:42:48,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:42:48,446 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:42:48,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 13:42:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:48,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 13:42:48,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:42:48,512 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:42:48,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:42:48,543 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:42:48,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301475901] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:42:48,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1149067425] [2022-11-23 13:42:48,550 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-23 13:42:48,550 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:42:48,550 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:42:48,550 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:42:48,551 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 13:42:48,848 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 13:42:49,354 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1111#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (< 2147483646 |ULTIMATE.start_main_~j~0#1|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483648)) (<= 0 |ULTIMATE.start_main_~m~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~N~0#1|) (<= 0 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~N~0#1| 2147483647) (<= |ULTIMATE.start_main_~m~0#1| 2147483647))' at error location [2022-11-23 13:42:49,354 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 13:42:49,354 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 13:42:49,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-23 13:42:49,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382466826] [2022-11-23 13:42:49,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 13:42:49,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 13:42:49,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:42:49,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 13:42:49,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-11-23 13:42:49,356 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:49,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:42:49,400 INFO L93 Difference]: Finished difference Result 129 states and 156 transitions. [2022-11-23 13:42:49,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 13:42:49,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-23 13:42:49,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:42:49,401 INFO L225 Difference]: With dead ends: 129 [2022-11-23 13:42:49,401 INFO L226 Difference]: Without dead ends: 128 [2022-11-23 13:42:49,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-11-23 13:42:49,403 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 47 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:42:49,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 62 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:42:49,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-11-23 13:42:49,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 101. [2022-11-23 13:42:49,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 98 states have (on average 1.2857142857142858) internal successors, (126), 100 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:49,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 126 transitions. [2022-11-23 13:42:49,415 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 126 transitions. Word has length 13 [2022-11-23 13:42:49,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:42:49,416 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 126 transitions. [2022-11-23 13:42:49,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:49,416 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 126 transitions. [2022-11-23 13:42:49,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 13:42:49,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:42:49,417 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:42:49,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-23 13:42:49,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-23 13:42:49,624 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 13:42:49,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:42:49,624 INFO L85 PathProgramCache]: Analyzing trace with hash 132719232, now seen corresponding path program 1 times [2022-11-23 13:42:49,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:42:49,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262393122] [2022-11-23 13:42:49,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:49,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:42:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:49,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 13:42:49,675 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:42:49,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262393122] [2022-11-23 13:42:49,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262393122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:42:49,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:42:49,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:42:49,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790048479] [2022-11-23 13:42:49,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:42:49,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:42:49,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:42:49,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:42:49,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:42:49,677 INFO L87 Difference]: Start difference. First operand 101 states and 126 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:49,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:42:49,709 INFO L93 Difference]: Finished difference Result 101 states and 126 transitions. [2022-11-23 13:42:49,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 13:42:49,710 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-23 13:42:49,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:42:49,711 INFO L225 Difference]: With dead ends: 101 [2022-11-23 13:42:49,711 INFO L226 Difference]: Without dead ends: 100 [2022-11-23 13:42:49,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:42:49,712 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:42:49,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 16 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:42:49,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-23 13:42:49,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 92. [2022-11-23 13:42:49,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 90 states have (on average 1.2666666666666666) internal successors, (114), 91 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:49,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 114 transitions. [2022-11-23 13:42:49,739 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 114 transitions. Word has length 15 [2022-11-23 13:42:49,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:42:49,739 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 114 transitions. [2022-11-23 13:42:49,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:49,739 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 114 transitions. [2022-11-23 13:42:49,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 13:42:49,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:42:49,742 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:42:49,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 13:42:49,742 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 13:42:49,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:42:49,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1307478541, now seen corresponding path program 1 times [2022-11-23 13:42:49,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:42:49,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125798336] [2022-11-23 13:42:49,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:49,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:42:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:49,806 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:42:49,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:42:49,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125798336] [2022-11-23 13:42:49,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125798336] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:42:49,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594969395] [2022-11-23 13:42:49,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:49,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:42:49,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:42:49,808 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:42:49,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 13:42:49,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:49,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 13:42:49,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:42:49,882 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:42:49,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:42:49,902 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:42:49,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594969395] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:42:49,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1832372073] [2022-11-23 13:42:49,905 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-23 13:42:49,905 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:42:49,905 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:42:49,906 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:42:49,906 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 13:42:50,313 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 13:42:50,691 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1757#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483648)) (<= |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~m~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~N~0#1|) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~N~0#1| 2147483647) (<= |ULTIMATE.start_main_~m~0#1| 2147483647))' at error location [2022-11-23 13:42:50,692 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 13:42:50,692 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 13:42:50,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2022-11-23 13:42:50,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580682254] [2022-11-23 13:42:50,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 13:42:50,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 13:42:50,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:42:50,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 13:42:50,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-23 13:42:50,693 INFO L87 Difference]: Start difference. First operand 92 states and 114 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:50,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:42:50,752 INFO L93 Difference]: Finished difference Result 147 states and 179 transitions. [2022-11-23 13:42:50,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 13:42:50,753 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 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 17 [2022-11-23 13:42:50,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:42:50,753 INFO L225 Difference]: With dead ends: 147 [2022-11-23 13:42:50,753 INFO L226 Difference]: Without dead ends: 103 [2022-11-23 13:42:50,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 37 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-11-23 13:42:50,755 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 18 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:42:50,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 59 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:42:50,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-23 13:42:50,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 98. [2022-11-23 13:42:50,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 96 states have (on average 1.2291666666666667) internal successors, (118), 97 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:50,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 118 transitions. [2022-11-23 13:42:50,764 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 118 transitions. Word has length 17 [2022-11-23 13:42:50,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:42:50,764 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 118 transitions. [2022-11-23 13:42:50,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:50,764 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 118 transitions. [2022-11-23 13:42:50,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 13:42:50,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:42:50,765 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:42:50,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 13:42:50,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-23 13:42:50,971 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 13:42:50,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:42:50,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1271463237, now seen corresponding path program 2 times [2022-11-23 13:42:50,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:42:50,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668874573] [2022-11-23 13:42:50,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:50,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:42:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:51,000 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 13:42:51,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:42:51,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668874573] [2022-11-23 13:42:51,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668874573] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:42:51,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956798006] [2022-11-23 13:42:51,001 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 13:42:51,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:42:51,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:42:51,003 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:42:51,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 13:42:51,041 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 13:42:51,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 13:42:51,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 13:42:51,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:42:51,069 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 13:42:51,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:42:51,095 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 13:42:51,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956798006] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:42:51,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [216545389] [2022-11-23 13:42:51,099 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-23 13:42:51,099 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:42:51,099 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:42:51,099 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:42:51,099 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 13:42:51,496 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 13:42:51,853 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2181#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483648)) (<= |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~m~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~N~0#1|) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~N~0#1| 2147483647) (<= |ULTIMATE.start_main_~m~0#1| 2147483647))' at error location [2022-11-23 13:42:51,853 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 13:42:51,853 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 13:42:51,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2022-11-23 13:42:51,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190180801] [2022-11-23 13:42:51,854 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 13:42:51,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:42:51,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:42:51,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:42:51,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-23 13:42:51,855 INFO L87 Difference]: Start difference. First operand 98 states and 118 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:51,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:42:51,895 INFO L93 Difference]: Finished difference Result 99 states and 118 transitions. [2022-11-23 13:42:51,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 13:42:51,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-23 13:42:51,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:42:51,897 INFO L225 Difference]: With dead ends: 99 [2022-11-23 13:42:51,897 INFO L226 Difference]: Without dead ends: 80 [2022-11-23 13:42:51,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-11-23 13:42:51,899 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 17 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:42:51,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 20 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:42:51,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-23 13:42:51,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-11-23 13:42:51,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 78 states have (on average 1.2435897435897436) internal successors, (97), 79 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:51,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 97 transitions. [2022-11-23 13:42:51,906 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 97 transitions. Word has length 17 [2022-11-23 13:42:51,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:42:51,906 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 97 transitions. [2022-11-23 13:42:51,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:51,906 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 97 transitions. [2022-11-23 13:42:51,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 13:42:51,907 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:42:51,908 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:42:51,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 13:42:52,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:42:52,114 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 13:42:52,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:42:52,114 INFO L85 PathProgramCache]: Analyzing trace with hash 880601280, now seen corresponding path program 1 times [2022-11-23 13:42:52,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:42:52,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340459215] [2022-11-23 13:42:52,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:52,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:42:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:52,178 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:42:52,178 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:42:52,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340459215] [2022-11-23 13:42:52,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340459215] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:42:52,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574083579] [2022-11-23 13:42:52,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:52,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:42:52,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:42:52,181 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:42:52,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 13:42:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:52,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 13:42:52,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:42:52,285 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:42:52,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:42:52,331 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:42:52,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574083579] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:42:52,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [16234502] [2022-11-23 13:42:52,338 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-23 13:42:52,338 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:42:52,339 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:42:52,339 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:42:52,339 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 13:42:52,492 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 13:42:53,181 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2530#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~k~0#1|) (<= 0 |ULTIMATE.start_main_~m~0#1|) (<= 1 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~N~0#1|) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~N~0#1| 2147483647) (<= |ULTIMATE.start_main_~m~0#1| 2147483647))' at error location [2022-11-23 13:42:53,181 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 13:42:53,181 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 13:42:53,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-11-23 13:42:53,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415400311] [2022-11-23 13:42:53,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 13:42:53,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 13:42:53,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:42:53,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 13:42:53,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2022-11-23 13:42:53,183 INFO L87 Difference]: Start difference. First operand 80 states and 97 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 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) [2022-11-23 13:42:53,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:42:53,556 INFO L93 Difference]: Finished difference Result 319 states and 381 transitions. [2022-11-23 13:42:53,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 13:42:53,557 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 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) Word has length 18 [2022-11-23 13:42:53,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:42:53,558 INFO L225 Difference]: With dead ends: 319 [2022-11-23 13:42:53,558 INFO L226 Difference]: Without dead ends: 318 [2022-11-23 13:42:53,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 35 SyntacticMatches, 5 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=234, Invalid=822, Unknown=0, NotChecked=0, Total=1056 [2022-11-23 13:42:53,559 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 254 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 13:42:53,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 35 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 13:42:53,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2022-11-23 13:42:53,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 156. [2022-11-23 13:42:53,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 154 states have (on average 1.2402597402597402) internal successors, (191), 155 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:53,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 191 transitions. [2022-11-23 13:42:53,574 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 191 transitions. Word has length 18 [2022-11-23 13:42:53,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:42:53,575 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 191 transitions. [2022-11-23 13:42:53,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 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) [2022-11-23 13:42:53,575 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 191 transitions. [2022-11-23 13:42:53,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-23 13:42:53,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:42:53,576 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-11-23 13:42:53,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 13:42:53,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-23 13:42:53,782 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 13:42:53,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:42:53,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1193664205, now seen corresponding path program 2 times [2022-11-23 13:42:53,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:42:53,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13680827] [2022-11-23 13:42:53,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:53,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:42:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:53,840 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-23 13:42:53,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:42:53,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13680827] [2022-11-23 13:42:53,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13680827] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:42:53,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051697855] [2022-11-23 13:42:53,841 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 13:42:53,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:42:53,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:42:53,842 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:42:53,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 13:42:53,887 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 13:42:53,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 13:42:53,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 13:42:53,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:42:53,935 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-23 13:42:53,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:42:53,985 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-23 13:42:53,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051697855] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:42:53,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2016006373] [2022-11-23 13:42:53,987 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-23 13:42:53,988 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:42:53,988 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:42:53,988 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:42:53,988 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 13:42:54,155 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 13:42:54,681 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3356#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (< 2147483646 |ULTIMATE.start_main_~j~0#1|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483648)) (<= 0 |ULTIMATE.start_main_~m~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~N~0#1|) (<= 0 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~N~0#1| 2147483647) (<= |ULTIMATE.start_main_~m~0#1| 2147483647))' at error location [2022-11-23 13:42:54,681 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 13:42:54,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 13:42:54,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2022-11-23 13:42:54,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257014805] [2022-11-23 13:42:54,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 13:42:54,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:42:54,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:42:54,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:42:54,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-23 13:42:54,683 INFO L87 Difference]: Start difference. First operand 156 states and 191 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:54,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:42:54,712 INFO L93 Difference]: Finished difference Result 156 states and 191 transitions. [2022-11-23 13:42:54,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 13:42:54,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 34 [2022-11-23 13:42:54,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:42:54,716 INFO L225 Difference]: With dead ends: 156 [2022-11-23 13:42:54,716 INFO L226 Difference]: Without dead ends: 155 [2022-11-23 13:42:54,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 87 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-23 13:42:54,719 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:42:54,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 21 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:42:54,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-23 13:42:54,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 51. [2022-11-23 13:42:54,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.18) internal successors, (59), 50 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:54,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2022-11-23 13:42:54,728 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 34 [2022-11-23 13:42:54,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:42:54,730 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2022-11-23 13:42:54,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:54,730 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2022-11-23 13:42:54,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-23 13:42:54,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:42:54,732 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-23 13:42:54,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 13:42:54,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-23 13:42:54,938 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 13:42:54,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:42:54,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1053936930, now seen corresponding path program 1 times [2022-11-23 13:42:54,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:42:54,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034604874] [2022-11-23 13:42:54,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:54,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:42:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:55,061 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 13:42:55,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:42:55,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034604874] [2022-11-23 13:42:55,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034604874] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:42:55,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813810834] [2022-11-23 13:42:55,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:55,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:42:55,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:42:55,063 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:42:55,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 13:42:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:55,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 13:42:55,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:42:55,166 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 13:42:55,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:42:55,299 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 13:42:55,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813810834] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:42:55,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1688891290] [2022-11-23 13:42:55,302 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-23 13:42:55,302 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:42:55,302 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:42:55,303 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:42:55,303 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 13:42:55,688 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 13:42:56,176 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3842#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483648)) (<= |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~m~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~N~0#1|) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~N~0#1| 2147483647) (<= |ULTIMATE.start_main_~m~0#1| 2147483647))' at error location [2022-11-23 13:42:56,177 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 13:42:56,177 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 13:42:56,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-11-23 13:42:56,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645912263] [2022-11-23 13:42:56,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 13:42:56,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 13:42:56,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:42:56,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 13:42:56,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2022-11-23 13:42:56,179 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:57,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:42:57,088 INFO L93 Difference]: Finished difference Result 343 states and 400 transitions. [2022-11-23 13:42:57,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-23 13:42:57,089 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 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 34 [2022-11-23 13:42:57,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:42:57,090 INFO L225 Difference]: With dead ends: 343 [2022-11-23 13:42:57,090 INFO L226 Difference]: Without dead ends: 342 [2022-11-23 13:42:57,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 83 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1057 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=902, Invalid=2638, Unknown=0, NotChecked=0, Total=3540 [2022-11-23 13:42:57,092 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 691 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 13:42:57,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 81 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 13:42:57,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-11-23 13:42:57,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 100. [2022-11-23 13:42:57,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.1717171717171717) internal successors, (116), 99 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:57,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 116 transitions. [2022-11-23 13:42:57,110 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 116 transitions. Word has length 34 [2022-11-23 13:42:57,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:42:57,113 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 116 transitions. [2022-11-23 13:42:57,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:57,113 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 116 transitions. [2022-11-23 13:42:57,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-23 13:42:57,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:42:57,117 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-23 13:42:57,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 13:42:57,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-23 13:42:57,330 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 13:42:57,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:42:57,330 INFO L85 PathProgramCache]: Analyzing trace with hash 730779342, now seen corresponding path program 2 times [2022-11-23 13:42:57,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:42:57,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955495664] [2022-11-23 13:42:57,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:42:57,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:42:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:42:57,581 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 13:42:57,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:42:57,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955495664] [2022-11-23 13:42:57,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955495664] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:42:57,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927958184] [2022-11-23 13:42:57,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 13:42:57,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:42:57,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:42:57,586 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:42:57,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 13:42:57,620 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-23 13:42:57,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 13:42:57,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 13:42:57,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:42:57,748 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2022-11-23 13:42:57,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:42:57,874 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2022-11-23 13:42:57,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927958184] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:42:57,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [857569538] [2022-11-23 13:42:57,877 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-23 13:42:57,877 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:42:57,877 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:42:57,877 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:42:57,878 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 13:42:58,276 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 13:42:58,786 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4835#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483648)) (<= |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~m~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~N~0#1|) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~N~0#1| 2147483647) (<= |ULTIMATE.start_main_~m~0#1| 2147483647))' at error location [2022-11-23 13:42:58,786 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 13:42:58,787 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 13:42:58,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 3, 3] total 16 [2022-11-23 13:42:58,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560738974] [2022-11-23 13:42:58,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 13:42:58,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 13:42:58,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:42:58,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 13:42:58,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=529, Unknown=0, NotChecked=0, Total=650 [2022-11-23 13:42:58,788 INFO L87 Difference]: Start difference. First operand 100 states and 116 transitions. Second operand has 17 states, 16 states have (on average 5.375) internal successors, (86), 17 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:59,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:42:59,678 INFO L93 Difference]: Finished difference Result 458 states and 529 transitions. [2022-11-23 13:42:59,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-23 13:42:59,678 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.375) internal successors, (86), 17 states have internal predecessors, (86), 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 59 [2022-11-23 13:42:59,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:42:59,679 INFO L225 Difference]: With dead ends: 458 [2022-11-23 13:42:59,679 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 13:42:59,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 160 SyntacticMatches, 5 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1065 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=961, Invalid=2821, Unknown=0, NotChecked=0, Total=3782 [2022-11-23 13:42:59,682 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 425 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 13:42:59,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 80 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 13:42:59,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 13:42:59,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 13:42:59,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:59,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 13:42:59,684 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2022-11-23 13:42:59,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:42:59,684 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 13:42:59,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.375) internal successors, (86), 17 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:42:59,684 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 13:42:59,684 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 13:42:59,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-23 13:42:59,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-23 13:42:59,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-23 13:42:59,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-23 13:42:59,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-23 13:42:59,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-23 13:42:59,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-23 13:42:59,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-23 13:42:59,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-23 13:42:59,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-23 13:42:59,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 13:44:09,874 WARN L233 SmtUtils]: Spent 1.12m on a formula simplification. DAG size of input: 212 DAG size of output: 210 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-23 13:44:11,602 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-11-23 13:44:11,602 INFO L895 garLoopResultBuilder]: At program point L23-2(lines 23 34) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~n~0#1| 2147483647)) (.cse1 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse2 (<= 0 |ULTIMATE.start_main_~N~0#1|)) (.cse3 (<= |ULTIMATE.start_main_~N~0#1| 2147483647)) (.cse4 (<= |ULTIMATE.start_main_~m~0#1| 2147483647))) (or (and .cse0 (<= |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~j~0#1|) (or (and .cse1 .cse2 (<= |ULTIMATE.start_main_~j~0#1| 0)) (and (<= 0 |ULTIMATE.start_main_~k~0#1|) .cse1 .cse2)) .cse3 .cse4) (and .cse0 (<= |ULTIMATE.start_main_~i~0#1| 0) .cse1 .cse2 .cse3 .cse4))) [2022-11-23 13:44:11,603 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-11-23 13:44:11,603 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-11-23 13:44:11,603 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 13:44:11,603 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-11-23 13:44:11,604 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2022-11-23 13:44:11,604 INFO L899 garLoopResultBuilder]: For program point L28-2(lines 28 30) no Hoare annotation was computed. [2022-11-23 13:44:11,605 INFO L895 garLoopResultBuilder]: At program point L28-4(lines 28 30) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~N~0#1|) (<= |ULTIMATE.start_main_~N~0#1| 2147483647) (<= |ULTIMATE.start_main_~m~0#1| 2147483647)) [2022-11-23 13:44:11,605 INFO L899 garLoopResultBuilder]: For program point L28-5(lines 28 30) no Hoare annotation was computed. [2022-11-23 13:44:11,605 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-11-23 13:44:11,605 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2022-11-23 13:44:11,605 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 13:44:11,606 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-11-23 13:44:11,606 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2022-11-23 13:44:11,606 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-11-23 13:44:11,606 INFO L895 garLoopResultBuilder]: At program point L25-2(lines 25 32) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~n~0#1| 2147483647)) (.cse1 (<= |ULTIMATE.start_main_~i~0#1| 2147483646)) (.cse2 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse3 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse4 (<= 0 |ULTIMATE.start_main_~N~0#1|)) (.cse5 (<= |ULTIMATE.start_main_~N~0#1| 2147483647)) (.cse6 (<= |ULTIMATE.start_main_~m~0#1| 2147483647))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (<= |ULTIMATE.start_main_~j~0#1| 0)) (and (<= 0 |ULTIMATE.start_main_~k~0#1|) .cse0 (< |ULTIMATE.start_main_~k~0#1| 2147483647) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6))) [2022-11-23 13:44:11,606 INFO L899 garLoopResultBuilder]: For program point L25-3(lines 25 32) no Hoare annotation was computed. [2022-11-23 13:44:11,607 INFO L899 garLoopResultBuilder]: For program point L21(lines 21 35) no Hoare annotation was computed. [2022-11-23 13:44:11,607 INFO L902 garLoopResultBuilder]: At program point L21-1(lines 21 35) the Hoare annotation is: true [2022-11-23 13:44:11,607 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-11-23 13:44:11,607 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2022-11-23 13:44:11,607 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2022-11-23 13:44:11,607 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-11-23 13:44:11,611 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:44:11,613 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 13:44:11,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:44:11 BoogieIcfgContainer [2022-11-23 13:44:11,634 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 13:44:11,635 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 13:44:11,635 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 13:44:11,635 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 13:44:11,636 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:45" (3/4) ... [2022-11-23 13:44:11,639 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 13:44:11,651 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-23 13:44:11,651 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 13:44:11,651 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 13:44:11,697 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 13:44:11,697 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 13:44:11,698 INFO L158 Benchmark]: Toolchain (without parser) took 86944.80ms. Allocated memory was 167.8MB in the beginning and 736.1MB in the end (delta: 568.3MB). Free memory was 123.4MB in the beginning and 382.8MB in the end (delta: -259.4MB). Peak memory consumption was 311.7MB. Max. memory is 16.1GB. [2022-11-23 13:44:11,698 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:44:11,699 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.03ms. Allocated memory is still 167.8MB. Free memory was 123.0MB in the beginning and 113.8MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 13:44:11,699 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.21ms. Allocated memory is still 167.8MB. Free memory was 113.8MB in the beginning and 112.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:44:11,699 INFO L158 Benchmark]: Boogie Preprocessor took 37.51ms. Allocated memory is still 167.8MB. Free memory was 112.5MB in the beginning and 111.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 13:44:11,700 INFO L158 Benchmark]: RCFGBuilder took 356.61ms. Allocated memory is still 167.8MB. Free memory was 111.3MB in the beginning and 100.0MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 13:44:11,700 INFO L158 Benchmark]: TraceAbstraction took 86216.26ms. Allocated memory was 167.8MB in the beginning and 736.1MB in the end (delta: 568.3MB). Free memory was 99.1MB in the beginning and 384.9MB in the end (delta: -285.8MB). Peak memory consumption was 404.0MB. Max. memory is 16.1GB. [2022-11-23 13:44:11,700 INFO L158 Benchmark]: Witness Printer took 61.90ms. Allocated memory is still 736.1MB. Free memory was 384.9MB in the beginning and 382.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 13:44:11,703 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.03ms. Allocated memory is still 167.8MB. Free memory was 123.0MB in the beginning and 113.8MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.21ms. Allocated memory is still 167.8MB. Free memory was 113.8MB in the beginning and 112.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.51ms. Allocated memory is still 167.8MB. Free memory was 112.5MB in the beginning and 111.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 356.61ms. Allocated memory is still 167.8MB. Free memory was 111.3MB in the beginning and 100.0MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 86216.26ms. Allocated memory was 167.8MB in the beginning and 736.1MB in the end (delta: 568.3MB). Free memory was 99.1MB in the beginning and 384.9MB in the end (delta: -285.8MB). Peak memory consumption was 404.0MB. Max. memory is 16.1GB. * Witness Printer took 61.90ms. Allocated memory is still 736.1MB. Free memory was 384.9MB in the beginning and 382.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 86.1s, OverallIterations: 17, TraceHistogramMax: 9, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 71.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1686 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1686 mSDsluCounter, 622 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 399 mSDsCounter, 132 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 714 IncrementalHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 132 mSolverCounterUnsat, 223 mSDtfsCounter, 714 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 744 GetRequests, 495 SyntacticMatches, 29 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2533 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred in iteration=14, InterpolantAutomatonStates: 157, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 645 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 128 NumberOfFragments, 134 HoareAnnotationTreeSize, 4 FomulaSimplifications, 589101 FormulaSimplificationTreeSizeReduction, 70.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 1180120 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 477 NumberOfCodeBlocks, 396 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 646 ConstructedInterpolants, 0 QuantifiedInterpolants, 1830 SizeOfPredicates, 19 NumberOfNonLiveVariables, 325 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 33 InterpolantComputations, 9 PerfectInterpolantSequences, 423/815 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (((((((n <= 2147483647 && i <= 2147483646) && 0 <= j) && 0 <= i) && 0 <= N) && N <= 2147483647) && m <= 2147483647) && j <= 0) || ((((((((0 <= k && n <= 2147483647) && k < 2147483647) && i <= 2147483646) && 0 <= j) && 0 <= i) && 0 <= N) && N <= 2147483647) && m <= 2147483647) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((((n <= 2147483647 && m <= j) && (((0 <= i && 0 <= N) && j <= 0) || ((0 <= k && 0 <= i) && 0 <= N))) && N <= 2147483647) && m <= 2147483647) || (((((n <= 2147483647 && i <= 0) && 0 <= i) && 0 <= N) && N <= 2147483647) && m <= 2147483647) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: ((((((0 <= k && n <= 2147483647) && 0 <= j) && 0 <= i) && k <= 2147483646) && 0 <= N) && N <= 2147483647) && m <= 2147483647 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-23 13:44:11,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a35b2035-2018-4727-ab43-2da1e28e849a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE