./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Benghazi.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/Benghazi.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh --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 9edf84ee73e15e033440f38035e679f46457b07702832d589a58530a086e57e5 --- 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-2329fc7 [2022-12-14 09:55:55,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:55:55,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:55:55,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:55:55,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:55:55,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:55:55,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:55:55,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:55:55,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:55:55,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:55:55,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:55:55,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:55:55,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:55:55,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:55:55,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:55:55,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:55:55,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:55:55,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:55:55,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:55:55,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:55:55,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:55:55,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:55:55,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:55:55,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:55:55,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:55:55,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:55:55,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:55:55,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:55:55,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:55:55,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:55:55,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:55:55,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:55:55,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:55:55,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:55:55,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:55:55,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:55:55,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:55:55,103 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:55:55,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:55:55,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:55:55,104 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:55:55,105 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 09:55:55,124 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:55:55,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:55:55,125 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:55:55,125 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:55:55,125 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:55:55,126 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:55:55,126 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:55:55,126 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:55:55,126 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:55:55,126 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:55:55,126 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:55:55,127 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:55:55,127 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:55:55,127 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:55:55,127 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:55:55,127 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:55:55,127 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:55:55,128 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:55:55,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:55:55,128 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:55:55,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:55:55,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:55:55,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:55:55,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:55:55,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:55:55,129 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 09:55:55,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:55:55,130 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:55:55,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:55:55,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:55:55,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:55:55,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:55:55,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:55:55,131 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:55:55,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:55:55,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:55:55,131 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:55:55,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:55:55,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:55:55,131 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:55:55,132 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_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9edf84ee73e15e033440f38035e679f46457b07702832d589a58530a086e57e5 [2022-12-14 09:55:55,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:55:55,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:55:55,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:55:55,332 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:55:55,333 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:55:55,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/termination-crafted/Benghazi.c [2022-12-14 09:55:57,879 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:55:58,021 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:55:58,022 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/sv-benchmarks/c/termination-crafted/Benghazi.c [2022-12-14 09:55:58,026 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/data/ef5b0b597/920099205e0d47428fb638ec1708353a/FLAG8c9fc0d2a [2022-12-14 09:55:58,451 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/data/ef5b0b597/920099205e0d47428fb638ec1708353a [2022-12-14 09:55:58,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:55:58,455 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:55:58,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:55:58,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:55:58,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:55:58,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:55:58" (1/1) ... [2022-12-14 09:55:58,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dfba154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:55:58, skipping insertion in model container [2022-12-14 09:55:58,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:55:58" (1/1) ... [2022-12-14 09:55:58,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:55:58,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:55:58,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:55:58,571 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:55:58,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:55:58,588 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:55:58,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:55:58 WrapperNode [2022-12-14 09:55:58,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:55:58,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:55:58,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:55:58,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:55:58,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:55:58" (1/1) ... [2022-12-14 09:55:58,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:55:58" (1/1) ... [2022-12-14 09:55:58,608 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-12-14 09:55:58,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:55:58,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:55:58,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:55:58,609 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:55:58,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:55:58" (1/1) ... [2022-12-14 09:55:58,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:55:58" (1/1) ... [2022-12-14 09:55:58,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:55:58" (1/1) ... [2022-12-14 09:55:58,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:55:58" (1/1) ... [2022-12-14 09:55:58,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:55:58" (1/1) ... [2022-12-14 09:55:58,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:55:58" (1/1) ... [2022-12-14 09:55:58,620 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:55:58" (1/1) ... [2022-12-14 09:55:58,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:55:58" (1/1) ... [2022-12-14 09:55:58,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:55:58,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:55:58,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:55:58,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:55:58,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:55:58" (1/1) ... [2022-12-14 09:55:58,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:55:58,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:55:58,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:55:58,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:55:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:55:58,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:55:58,738 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:55:58,739 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:55:58,796 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:55:58,809 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:55:58,809 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 09:55:58,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:55:58 BoogieIcfgContainer [2022-12-14 09:55:58,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:55:58,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:55:58,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:55:58,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:55:58,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:55:58" (1/3) ... [2022-12-14 09:55:58,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66899899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:55:58, skipping insertion in model container [2022-12-14 09:55:58,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:55:58" (2/3) ... [2022-12-14 09:55:58,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66899899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:55:58, skipping insertion in model container [2022-12-14 09:55:58,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:55:58" (3/3) ... [2022-12-14 09:55:58,817 INFO L112 eAbstractionObserver]: Analyzing ICFG Benghazi.c [2022-12-14 09:55:58,832 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:55:58,832 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 09:55:58,868 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:55:58,873 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;@76815f8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:55:58,873 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 09:55:58,876 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.875) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:55:58,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 09:55:58,881 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:58,881 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 09:55:58,881 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 09:55:58,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:58,885 INFO L85 PathProgramCache]: Analyzing trace with hash 60896, now seen corresponding path program 1 times [2022-12-14 09:55:58,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:58,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442663226] [2022-12-14 09:55:58,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:58,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:59,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:55:59,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:59,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442663226] [2022-12-14 09:55:59,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442663226] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:59,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:59,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:55:59,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284738578] [2022-12-14 09:55:59,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:59,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:55:59,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:59,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:55:59,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:55:59,085 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.875) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-12-14 09:55:59,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:59,141 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2022-12-14 09:55:59,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:55:59,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2022-12-14 09:55:59,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:59,150 INFO L225 Difference]: With dead ends: 25 [2022-12-14 09:55:59,150 INFO L226 Difference]: Without dead ends: 22 [2022-12-14 09:55:59,153 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 [2022-12-14 09:55:59,156 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 10 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:59,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 25 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:55:59,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-12-14 09:55:59,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 16. [2022-12-14 09:55:59,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.6) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:55:59,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-12-14 09:55:59,184 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 3 [2022-12-14 09:55:59,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:59,185 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-12-14 09:55:59,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-12-14 09:55:59,185 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-12-14 09:55:59,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 09:55:59,186 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:59,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 09:55:59,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:55:59,187 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 09:55:59,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:59,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1887821, now seen corresponding path program 1 times [2022-12-14 09:55:59,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:59,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625096955] [2022-12-14 09:55:59,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:59,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:59,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:59,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:55:59,224 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:59,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625096955] [2022-12-14 09:55:59,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625096955] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:59,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:59,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:55:59,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617126025] [2022-12-14 09:55:59,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:59,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:55:59,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:59,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:55:59,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:55:59,228 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:55:59,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:59,245 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-12-14 09:55:59,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:55:59,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 09:55:59,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:59,246 INFO L225 Difference]: With dead ends: 18 [2022-12-14 09:55:59,246 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 09:55:59,247 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 [2022-12-14 09:55:59,248 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:59,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:55:59,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 09:55:59,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-14 09:55:59,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:55:59,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-12-14 09:55:59,253 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 4 [2022-12-14 09:55:59,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:59,254 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-12-14 09:55:59,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:55:59,254 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-12-14 09:55:59,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 09:55:59,255 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:59,255 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 09:55:59,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:55:59,255 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 09:55:59,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:59,256 INFO L85 PathProgramCache]: Analyzing trace with hash 58522498, now seen corresponding path program 1 times [2022-12-14 09:55:59,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:59,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635190901] [2022-12-14 09:55:59,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:59,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:59,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:55:59,291 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:59,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635190901] [2022-12-14 09:55:59,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635190901] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:59,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:59,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:55:59,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850457856] [2022-12-14 09:55:59,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:59,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:55:59,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:59,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:55:59,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:55:59,293 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2022-12-14 09:55:59,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:59,308 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2022-12-14 09:55:59,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:55:59,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 [2022-12-14 09:55:59,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:59,310 INFO L225 Difference]: With dead ends: 24 [2022-12-14 09:55:59,310 INFO L226 Difference]: Without dead ends: 23 [2022-12-14 09:55:59,310 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 [2022-12-14 09:55:59,312 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:59,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 18 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:55:59,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-14 09:55:59,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2022-12-14 09:55:59,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.5) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:55:59,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-12-14 09:55:59,317 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 5 [2022-12-14 09:55:59,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:59,317 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-12-14 09:55:59,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2022-12-14 09:55:59,317 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-12-14 09:55:59,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 09:55:59,318 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:59,318 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 09:55:59,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:55:59,319 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 09:55:59,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:59,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1814197487, now seen corresponding path program 1 times [2022-12-14 09:55:59,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:59,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893258334] [2022-12-14 09:55:59,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:59,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:59,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:55:59,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:59,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893258334] [2022-12-14 09:55:59,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893258334] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:59,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:59,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:55:59,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610043053] [2022-12-14 09:55:59,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:59,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:55:59,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:59,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:55:59,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:55:59,353 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-12-14 09:55:59,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:59,366 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2022-12-14 09:55:59,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:55:59,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2022-12-14 09:55:59,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:59,367 INFO L225 Difference]: With dead ends: 24 [2022-12-14 09:55:59,367 INFO L226 Difference]: Without dead ends: 23 [2022-12-14 09:55:59,367 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 [2022-12-14 09:55:59,369 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 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 [2022-12-14 09:55:59,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 19 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:55:59,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-14 09:55:59,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2022-12-14 09:55:59,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:55:59,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2022-12-14 09:55:59,373 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 6 [2022-12-14 09:55:59,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:59,373 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2022-12-14 09:55:59,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-12-14 09:55:59,374 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2022-12-14 09:55:59,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 09:55:59,374 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:59,374 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:55:59,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:55:59,375 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 09:55:59,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:59,375 INFO L85 PathProgramCache]: Analyzing trace with hash 405547300, now seen corresponding path program 1 times [2022-12-14 09:55:59,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:59,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018315645] [2022-12-14 09:55:59,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:59,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:59,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:55:59,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:59,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018315645] [2022-12-14 09:55:59,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018315645] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:59,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:59,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:55:59,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89480228] [2022-12-14 09:55:59,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:59,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:55:59,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:59,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:55:59,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:55:59,419 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:55:59,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:59,448 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2022-12-14 09:55:59,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:55:59,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 09:55:59,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:59,449 INFO L225 Difference]: With dead ends: 27 [2022-12-14 09:55:59,450 INFO L226 Difference]: Without dead ends: 26 [2022-12-14 09:55:59,450 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 [2022-12-14 09:55:59,451 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:59,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 23 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:55:59,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-12-14 09:55:59,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2022-12-14 09:55:59,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 19 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:55:59,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2022-12-14 09:55:59,455 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 7 [2022-12-14 09:55:59,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:59,456 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2022-12-14 09:55:59,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:55:59,456 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2022-12-14 09:55:59,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 09:55:59,456 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:59,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:55:59,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:55:59,457 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 09:55:59,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:59,458 INFO L85 PathProgramCache]: Analyzing trace with hash -312935535, now seen corresponding path program 1 times [2022-12-14 09:55:59,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:59,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715272355] [2022-12-14 09:55:59,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:59,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:59,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:55:59,493 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:59,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715272355] [2022-12-14 09:55:59,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715272355] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:59,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:59,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:55:59,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634246724] [2022-12-14 09:55:59,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:59,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:55:59,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:59,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:55:59,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:55:59,495 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-12-14 09:55:59,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:59,519 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2022-12-14 09:55:59,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:55:59,520 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 [2022-12-14 09:55:59,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:59,521 INFO L225 Difference]: With dead ends: 27 [2022-12-14 09:55:59,521 INFO L226 Difference]: Without dead ends: 26 [2022-12-14 09:55:59,521 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 [2022-12-14 09:55:59,522 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 7 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:59,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 25 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:55:59,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-12-14 09:55:59,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2022-12-14 09:55:59,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.4) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:55:59,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2022-12-14 09:55:59,525 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 8 [2022-12-14 09:55:59,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:59,525 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2022-12-14 09:55:59,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-12-14 09:55:59,525 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2022-12-14 09:55:59,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 09:55:59,526 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:59,526 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:55:59,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:55:59,526 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 09:55:59,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:59,527 INFO L85 PathProgramCache]: Analyzing trace with hash -83337101, now seen corresponding path program 1 times [2022-12-14 09:55:59,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:59,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133042955] [2022-12-14 09:55:59,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:59,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:59,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:55:59,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:59,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133042955] [2022-12-14 09:55:59,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133042955] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:55:59,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260669146] [2022-12-14 09:55:59,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:59,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:55:59,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:55:59,567 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:55:59,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:55:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:59,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 09:55:59,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:55:59,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:55:59,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:55:59,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:55:59,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260669146] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:55:59,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1143380337] [2022-12-14 09:55:59,695 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 09:55:59,696 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:55:59,698 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:55:59,703 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:55:59,703 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:55:59,956 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:56:00,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1143380337] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:56:00,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:56:00,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3, 3, 3] total 12 [2022-12-14 09:56:00,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007017503] [2022-12-14 09:56:00,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:56:00,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 09:56:00,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:56:00,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 09:56:00,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-12-14 09:56:00,162 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:56:00,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:56:00,201 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2022-12-14 09:56:00,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:56:00,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 09:56:00,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:56:00,202 INFO L225 Difference]: With dead ends: 21 [2022-12-14 09:56:00,202 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 09:56:00,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-12-14 09:56:00,203 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:56:00,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:56:00,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 09:56:00,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-14 09:56:00,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:56:00,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-12-14 09:56:00,211 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10 [2022-12-14 09:56:00,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:56:00,211 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-12-14 09:56:00,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:56:00,211 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-12-14 09:56:00,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 09:56:00,211 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:56:00,212 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-12-14 09:56:00,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:56:00,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:56:00,413 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 09:56:00,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:56:00,413 INFO L85 PathProgramCache]: Analyzing trace with hash -204434052, now seen corresponding path program 1 times [2022-12-14 09:56:00,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:56:00,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364198249] [2022-12-14 09:56:00,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:56:00,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:56:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:56:00,461 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:56:00,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:56:00,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364198249] [2022-12-14 09:56:00,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364198249] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:56:00,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994287150] [2022-12-14 09:56:00,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:56:00,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:56:00,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:56:00,463 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:56:00,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:56:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:56:00,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 09:56:00,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:56:00,506 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:56:00,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:56:00,534 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:56:00,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994287150] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:56:00,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1116706152] [2022-12-14 09:56:00,536 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 09:56:00,536 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:56:00,536 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:56:00,537 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:56:00,537 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:56:00,681 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:56:00,904 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '517#(and (< 2147483646 |ULTIMATE.start_main_~d2~0#1|) (<= 73 |ULTIMATE.start_main_~d1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~d1~0#1| |ULTIMATE.start_main_~x~0#1|)) (= |ULTIMATE.start_main_~d1~0#1| |ULTIMATE.start_main_~d1old~0#1|) (<= |ULTIMATE.start_main_~d1~0#1| 2147483647) (<= (+ |ULTIMATE.start_main_~d1~0#1| |ULTIMATE.start_main_~x~0#1|) 2147483647))' at error location [2022-12-14 09:56:00,904 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:56:00,904 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:56:00,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-14 09:56:00,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211700147] [2022-12-14 09:56:00,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:56:00,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 09:56:00,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:56:00,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 09:56:00,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-14 09:56:00,906 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:56:00,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:56:00,999 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2022-12-14 09:56:00,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 09:56:01,000 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-14 09:56:01,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:56:01,000 INFO L225 Difference]: With dead ends: 38 [2022-12-14 09:56:01,000 INFO L226 Difference]: Without dead ends: 36 [2022-12-14 09:56:01,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2022-12-14 09:56:01,001 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 34 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:56:01,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 18 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:56:01,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-12-14 09:56:01,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-12-14 09:56:01,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.0588235294117647) internal successors, (36), 35 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) [2022-12-14 09:56:01,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2022-12-14 09:56:01,008 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 13 [2022-12-14 09:56:01,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:56:01,008 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2022-12-14 09:56:01,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:56:01,008 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2022-12-14 09:56:01,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 09:56:01,009 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:56:01,009 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 1, 1] [2022-12-14 09:56:01,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 09:56:01,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 09:56:01,210 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 09:56:01,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:56:01,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1302839678, now seen corresponding path program 1 times [2022-12-14 09:56:01,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:56:01,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024091530] [2022-12-14 09:56:01,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:56:01,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:56:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:56:01,409 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:56:01,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:56:01,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024091530] [2022-12-14 09:56:01,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024091530] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:56:01,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379360624] [2022-12-14 09:56:01,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:56:01,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:56:01,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:56:01,411 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:56:01,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 09:56:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:56:01,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 09:56:01,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:56:01,480 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:56:01,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:56:01,544 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:56:01,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379360624] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:56:01,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1223903317] [2022-12-14 09:56:01,546 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 09:56:01,547 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:56:01,547 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:56:01,547 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:56:01,547 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:56:01,639 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:56:01,842 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '801#(and (< 2147483646 |ULTIMATE.start_main_~d1old~0#1|) (= (+ |ULTIMATE.start_main_~d2~0#1| 1) |ULTIMATE.start_main_~d1~0#1|) (<= |ULTIMATE.start_main_~d2~0#1| 2147483646) (<= |ULTIMATE.start_main_~d1old~0#1| 2147483647) (<= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|) 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|)) (<= 74 |ULTIMATE.start_main_~d2~0#1|))' at error location [2022-12-14 09:56:01,842 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:56:01,842 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:56:01,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-12-14 09:56:01,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559726482] [2022-12-14 09:56:01,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:56:01,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 09:56:01,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:56:01,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 09:56:01,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2022-12-14 09:56:01,844 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 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) [2022-12-14 09:56:02,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:56:02,038 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2022-12-14 09:56:02,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 09:56:02,038 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-12-14 09:56:02,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:56:02,039 INFO L225 Difference]: With dead ends: 69 [2022-12-14 09:56:02,039 INFO L226 Difference]: Without dead ends: 67 [2022-12-14 09:56:02,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=223, Invalid=769, Unknown=0, NotChecked=0, Total=992 [2022-12-14 09:56:02,041 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 80 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:56:02,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 30 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:56:02,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-12-14 09:56:02,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2022-12-14 09:56:02,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 64 states have (on average 1.046875) internal successors, (67), 65 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) [2022-12-14 09:56:02,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2022-12-14 09:56:02,050 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 29 [2022-12-14 09:56:02,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:56:02,050 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2022-12-14 09:56:02,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 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) [2022-12-14 09:56:02,050 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2022-12-14 09:56:02,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-12-14 09:56:02,051 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:56:02,052 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 1, 1] [2022-12-14 09:56:02,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 09:56:02,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:56:02,254 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 09:56:02,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:56:02,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1075872604, now seen corresponding path program 2 times [2022-12-14 09:56:02,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:56:02,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376624728] [2022-12-14 09:56:02,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:56:02,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:56:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:56:02,524 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:56:02,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:56:02,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376624728] [2022-12-14 09:56:02,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376624728] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:56:02,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120295067] [2022-12-14 09:56:02,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 09:56:02,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:56:02,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:56:02,526 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:56:02,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 09:56:02,564 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-12-14 09:56:02,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:56:02,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 09:56:02,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:56:02,840 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 34 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:56:02,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:56:03,221 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 10 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:56:03,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120295067] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:56:03,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1283236474] [2022-12-14 09:56:03,223 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 09:56:03,223 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:56:03,224 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:56:03,224 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:56:03,224 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:56:03,294 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:56:03,637 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1352#(and (< 2147483646 |ULTIMATE.start_main_~d2~0#1|) (<= 73 |ULTIMATE.start_main_~d1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~d1~0#1| |ULTIMATE.start_main_~x~0#1|)) (= |ULTIMATE.start_main_~d1~0#1| |ULTIMATE.start_main_~d1old~0#1|) (<= |ULTIMATE.start_main_~d1~0#1| 2147483647) (<= (+ |ULTIMATE.start_main_~d1~0#1| |ULTIMATE.start_main_~x~0#1|) 2147483647))' at error location [2022-12-14 09:56:03,637 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:56:03,637 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:56:03,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 15] total 42 [2022-12-14 09:56:03,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895310816] [2022-12-14 09:56:03,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:56:03,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-12-14 09:56:03,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:56:03,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-12-14 09:56:03,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=2086, Unknown=0, NotChecked=0, Total=2352 [2022-12-14 09:56:03,641 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand has 44 states, 43 states have (on average 3.8372093023255816) internal successors, (165), 43 states have internal predecessors, (165), 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) [2022-12-14 09:56:04,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:56:04,843 INFO L93 Difference]: Finished difference Result 74 states and 76 transitions. [2022-12-14 09:56:04,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-14 09:56:04,843 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 3.8372093023255816) internal successors, (165), 43 states have internal predecessors, (165), 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 55 [2022-12-14 09:56:04,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:56:04,843 INFO L225 Difference]: With dead ends: 74 [2022-12-14 09:56:04,843 INFO L226 Difference]: Without dead ends: 73 [2022-12-14 09:56:04,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 120 SyntacticMatches, 8 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1823 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1175, Invalid=5467, Unknown=0, NotChecked=0, Total=6642 [2022-12-14 09:56:04,846 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 346 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:56:04,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 0 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:56:04,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-12-14 09:56:04,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 65. [2022-12-14 09:56:04,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.015625) internal successors, (65), 64 states have internal predecessors, (65), 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) [2022-12-14 09:56:04,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2022-12-14 09:56:04,855 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 55 [2022-12-14 09:56:04,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:56:04,855 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2022-12-14 09:56:04,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 3.8372093023255816) internal successors, (165), 43 states have internal predecessors, (165), 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) [2022-12-14 09:56:04,856 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2022-12-14 09:56:04,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 09:56:04,857 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:56:04,857 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 1, 1] [2022-12-14 09:56:04,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 09:56:05,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 09:56:05,058 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 09:56:05,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:56:05,060 INFO L85 PathProgramCache]: Analyzing trace with hash 322439441, now seen corresponding path program 2 times [2022-12-14 09:56:05,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:56:05,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446950647] [2022-12-14 09:56:05,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:56:05,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:56:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:56:05,285 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 252 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:56:05,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:56:05,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446950647] [2022-12-14 09:56:05,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446950647] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:56:05,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598510972] [2022-12-14 09:56:05,286 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 09:56:05,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:56:05,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:56:05,287 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:56:05,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 09:56:05,330 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2022-12-14 09:56:05,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:56:05,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 32 conjunts are in the unsatisfiable core [2022-12-14 09:56:05,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:56:05,750 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 252 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:56:05,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:56:06,548 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 252 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:56:06,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598510972] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:56:06,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1286475514] [2022-12-14 09:56:06,550 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 09:56:06,550 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:56:06,550 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:56:06,550 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:56:06,551 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:56:06,611 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:56:07,139 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2023#(and (< 2147483646 |ULTIMATE.start_main_~d1old~0#1|) (= (+ |ULTIMATE.start_main_~d2~0#1| 1) |ULTIMATE.start_main_~d1~0#1|) (<= |ULTIMATE.start_main_~d2~0#1| 2147483646) (<= |ULTIMATE.start_main_~d1old~0#1| 2147483647) (<= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|) 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|)) (<= 74 |ULTIMATE.start_main_~d2~0#1|))' at error location [2022-12-14 09:56:07,139 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:56:07,139 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:56:07,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 24, 24] total 62 [2022-12-14 09:56:07,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642537219] [2022-12-14 09:56:07,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:56:07,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-12-14 09:56:07,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:56:07,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-12-14 09:56:07,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=429, Invalid=4263, Unknown=0, NotChecked=0, Total=4692 [2022-12-14 09:56:07,141 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand has 64 states, 63 states have (on average 3.0476190476190474) internal successors, (192), 63 states have internal predecessors, (192), 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) [2022-12-14 09:56:11,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:56:11,413 INFO L93 Difference]: Finished difference Result 129 states and 137 transitions. [2022-12-14 09:56:11,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-12-14 09:56:11,414 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 3.0476190476190474) internal successors, (192), 63 states have internal predecessors, (192), 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 64 [2022-12-14 09:56:11,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:56:11,414 INFO L225 Difference]: With dead ends: 129 [2022-12-14 09:56:11,415 INFO L226 Difference]: Without dead ends: 128 [2022-12-14 09:56:11,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 128 SyntacticMatches, 9 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4471 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=3589, Invalid=15043, Unknown=0, NotChecked=0, Total=18632 [2022-12-14 09:56:11,417 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 545 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:56:11,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 18 Invalid, 1522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 09:56:11,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-12-14 09:56:11,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2022-12-14 09:56:11,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 1.0078740157480315) internal successors, (128), 127 states have internal predecessors, (128), 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) [2022-12-14 09:56:11,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 128 transitions. [2022-12-14 09:56:11,431 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 128 transitions. Word has length 64 [2022-12-14 09:56:11,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:56:11,431 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 128 transitions. [2022-12-14 09:56:11,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 3.0476190476190474) internal successors, (192), 63 states have internal predecessors, (192), 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) [2022-12-14 09:56:11,432 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 128 transitions. [2022-12-14 09:56:11,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-12-14 09:56:11,432 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:56:11,432 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 17, 1, 1] [2022-12-14 09:56:11,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-14 09:56:11,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-14 09:56:11,634 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 09:56:11,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:56:11,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1424674338, now seen corresponding path program 3 times [2022-12-14 09:56:11,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:56:11,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674440612] [2022-12-14 09:56:11,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:56:11,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:56:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:56:12,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 0 proven. 1071 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:56:12,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:56:12,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674440612] [2022-12-14 09:56:12,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674440612] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:56:12,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985755181] [2022-12-14 09:56:12,069 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 09:56:12,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:56:12,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:56:12,070 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:56:12,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 09:56:12,125 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 09:56:12,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:56:12,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-14 09:56:12,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:56:12,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 0 proven. 1071 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:56:12,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:56:12,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 0 proven. 1071 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:56:12,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985755181] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:56:12,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [717361203] [2022-12-14 09:56:12,716 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 09:56:12,716 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:56:12,716 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:56:12,716 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:56:12,716 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:56:12,780 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:56:13,013 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3269#(and (< 2147483646 |ULTIMATE.start_main_~d1old~0#1|) (= (+ |ULTIMATE.start_main_~d2~0#1| 1) |ULTIMATE.start_main_~d1~0#1|) (<= |ULTIMATE.start_main_~d2~0#1| 2147483646) (<= |ULTIMATE.start_main_~d1old~0#1| 2147483647) (<= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|) 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|)) (<= 74 |ULTIMATE.start_main_~d2~0#1|))' at error location [2022-12-14 09:56:13,014 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:56:13,014 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:56:13,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 54 [2022-12-14 09:56:13,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414402502] [2022-12-14 09:56:13,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:56:13,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-12-14 09:56:13,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:56:13,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-12-14 09:56:13,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=583, Invalid=3199, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 09:56:13,016 INFO L87 Difference]: Start difference. First operand 128 states and 128 transitions. Second operand has 56 states, 55 states have (on average 4.618181818181818) internal successors, (254), 55 states have internal predecessors, (254), 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) [2022-12-14 09:56:14,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:56:14,446 INFO L93 Difference]: Finished difference Result 262 states and 280 transitions. [2022-12-14 09:56:14,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-12-14 09:56:14,446 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 4.618181818181818) internal successors, (254), 55 states have internal predecessors, (254), 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 127 [2022-12-14 09:56:14,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:56:14,449 INFO L225 Difference]: With dead ends: 262 [2022-12-14 09:56:14,449 INFO L226 Difference]: Without dead ends: 261 [2022-12-14 09:56:14,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3259 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=3590, Invalid=9750, Unknown=0, NotChecked=0, Total=13340 [2022-12-14 09:56:14,452 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 576 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:56:14,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 73 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:56:14,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-12-14 09:56:14,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2022-12-14 09:56:14,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 260 states have (on average 1.0038461538461538) internal successors, (261), 260 states have internal predecessors, (261), 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) [2022-12-14 09:56:14,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 261 transitions. [2022-12-14 09:56:14,472 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 261 transitions. Word has length 127 [2022-12-14 09:56:14,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:56:14,472 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 261 transitions. [2022-12-14 09:56:14,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 4.618181818181818) internal successors, (254), 55 states have internal predecessors, (254), 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) [2022-12-14 09:56:14,473 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 261 transitions. [2022-12-14 09:56:14,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-12-14 09:56:14,475 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:56:14,475 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 37, 37, 37, 36, 1, 1] [2022-12-14 09:56:14,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 09:56:14,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 09:56:14,677 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 09:56:14,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:56:14,678 INFO L85 PathProgramCache]: Analyzing trace with hash -939947951, now seen corresponding path program 4 times [2022-12-14 09:56:14,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:56:14,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350527] [2022-12-14 09:56:14,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:56:14,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:56:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:56:16,119 INFO L134 CoverageAnalysis]: Checked inductivity of 4662 backedges. 0 proven. 4662 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:56:16,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:56:16,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350527] [2022-12-14 09:56:16,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350527] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:56:16,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499341638] [2022-12-14 09:56:16,123 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-14 09:56:16,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:56:16,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:56:16,124 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:56:16,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 09:56:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:56:16,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 57 conjunts are in the unsatisfiable core [2022-12-14 09:56:16,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:56:16,406 INFO L134 CoverageAnalysis]: Checked inductivity of 4662 backedges. 0 proven. 4662 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:56:16,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:56:17,897 INFO L134 CoverageAnalysis]: Checked inductivity of 4662 backedges. 0 proven. 4662 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:56:17,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499341638] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:56:17,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1325696653] [2022-12-14 09:56:17,900 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 09:56:17,900 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:56:17,900 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:56:17,900 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:56:17,900 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:56:17,959 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:56:18,271 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5648#(and (< 2147483646 |ULTIMATE.start_main_~d1old~0#1|) (= (+ |ULTIMATE.start_main_~d2~0#1| 1) |ULTIMATE.start_main_~d1~0#1|) (<= |ULTIMATE.start_main_~d2~0#1| 2147483646) (<= |ULTIMATE.start_main_~d1old~0#1| 2147483647) (<= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|) 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|)) (<= 74 |ULTIMATE.start_main_~d2~0#1|))' at error location [2022-12-14 09:56:18,271 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:56:18,271 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:56:18,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56, 56] total 112 [2022-12-14 09:56:18,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448574676] [2022-12-14 09:56:18,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:56:18,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 114 states [2022-12-14 09:56:18,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:56:18,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2022-12-14 09:56:18,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2276, Invalid=12004, Unknown=0, NotChecked=0, Total=14280 [2022-12-14 09:56:18,275 INFO L87 Difference]: Start difference. First operand 261 states and 261 transitions. Second operand has 114 states, 113 states have (on average 4.601769911504425) internal successors, (520), 113 states have internal predecessors, (520), 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) [2022-12-14 09:56:23,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:56:23,068 INFO L93 Difference]: Finished difference Result 521 states and 557 transitions. [2022-12-14 09:56:23,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-12-14 09:56:23,069 INFO L78 Accepts]: Start accepts. Automaton has has 114 states, 113 states have (on average 4.601769911504425) internal successors, (520), 113 states have internal predecessors, (520), 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 260 [2022-12-14 09:56:23,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:56:23,070 INFO L225 Difference]: With dead ends: 521 [2022-12-14 09:56:23,070 INFO L226 Difference]: Without dead ends: 520 [2022-12-14 09:56:23,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 944 GetRequests, 716 SyntacticMatches, 0 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13320 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=14672, Invalid=37998, Unknown=0, NotChecked=0, Total=52670 [2022-12-14 09:56:23,074 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 1821 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1821 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:56:23,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1821 Valid, 129 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:56:23,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-12-14 09:56:23,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2022-12-14 09:56:23,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 519 states have (on average 1.001926782273603) internal successors, (520), 519 states have internal predecessors, (520), 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) [2022-12-14 09:56:23,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 520 transitions. [2022-12-14 09:56:23,113 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 520 transitions. Word has length 260 [2022-12-14 09:56:23,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:56:23,114 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 520 transitions. [2022-12-14 09:56:23,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 114 states, 113 states have (on average 4.601769911504425) internal successors, (520), 113 states have internal predecessors, (520), 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) [2022-12-14 09:56:23,114 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 520 transitions. [2022-12-14 09:56:23,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2022-12-14 09:56:23,120 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:56:23,120 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 74, 74, 74, 73, 1, 1] [2022-12-14 09:56:23,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 09:56:23,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:56:23,322 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 09:56:23,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:56:23,324 INFO L85 PathProgramCache]: Analyzing trace with hash -465566882, now seen corresponding path program 5 times [2022-12-14 09:56:23,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:56:23,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770278274] [2022-12-14 09:56:23,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:56:23,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:56:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:56:28,944 INFO L134 CoverageAnalysis]: Checked inductivity of 18907 backedges. 0 proven. 18907 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:56:28,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:56:28,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770278274] [2022-12-14 09:56:28,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770278274] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:56:28,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236504818] [2022-12-14 09:56:28,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 09:56:28,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:56:28,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:56:28,945 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:56:28,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 09:56:29,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-12-14 09:56:29,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:56:29,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 34 conjunts are in the unsatisfiable core [2022-12-14 09:56:29,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:56:30,120 INFO L134 CoverageAnalysis]: Checked inductivity of 18907 backedges. 4425 proven. 306 refuted. 0 times theorem prover too weak. 14176 trivial. 0 not checked. [2022-12-14 09:56:30,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:56:32,152 INFO L134 CoverageAnalysis]: Checked inductivity of 18907 backedges. 4425 proven. 306 refuted. 0 times theorem prover too weak. 14176 trivial. 0 not checked. [2022-12-14 09:56:32,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236504818] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:56:32,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2034882893] [2022-12-14 09:56:32,153 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 09:56:32,153 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:56:32,153 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:56:32,153 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:56:32,153 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:56:32,209 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:56:32,893 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10334#(and (< 2147483646 |ULTIMATE.start_main_~d1old~0#1|) (= (+ |ULTIMATE.start_main_~d2~0#1| 1) |ULTIMATE.start_main_~d1~0#1|) (<= |ULTIMATE.start_main_~d2~0#1| 2147483646) (<= |ULTIMATE.start_main_~d1old~0#1| 2147483647) (<= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|) 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|)) (<= 74 |ULTIMATE.start_main_~d2~0#1|))' at error location [2022-12-14 09:56:32,893 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:56:32,893 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:56:32,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [111, 26, 26] total 162 [2022-12-14 09:56:32,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6653817] [2022-12-14 09:56:32,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:56:32,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 163 states [2022-12-14 09:56:32,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:56:32,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 163 interpolants. [2022-12-14 09:56:32,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3092, Invalid=25300, Unknown=0, NotChecked=0, Total=28392 [2022-12-14 09:56:32,897 INFO L87 Difference]: Start difference. First operand 520 states and 520 transitions. Second operand has 163 states, 162 states have (on average 4.117283950617284) internal successors, (667), 163 states have internal predecessors, (667), 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) [2022-12-14 09:57:41,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:41,618 INFO L93 Difference]: Finished difference Result 532 states and 533 transitions. [2022-12-14 09:57:41,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 305 states. [2022-12-14 09:57:41,618 INFO L78 Accepts]: Start accepts. Automaton has has 163 states, 162 states have (on average 4.117283950617284) internal successors, (667), 163 states have internal predecessors, (667), 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 519 [2022-12-14 09:57:41,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:41,619 INFO L225 Difference]: With dead ends: 532 [2022-12-14 09:57:41,619 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 09:57:41,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1969 GetRequests, 1499 SyntacticMatches, 0 SemanticMatches, 470 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59632 ImplicationChecksByTransitivity, 71.4s TimeCoverageRelationStatistics Valid=45177, Invalid=177135, Unknown=0, NotChecked=0, Total=222312 [2022-12-14 09:57:41,630 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 6826 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 1244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6826 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1244 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:57:41,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6826 Valid, 0 Invalid, 2714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1244 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 09:57:41,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 09:57:41,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 09:57:41,631 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) [2022-12-14 09:57:41,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 09:57:41,631 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 519 [2022-12-14 09:57:41,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:41,631 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 09:57:41,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 163 states, 162 states have (on average 4.117283950617284) internal successors, (667), 163 states have internal predecessors, (667), 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) [2022-12-14 09:57:41,631 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 09:57:41,631 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 09:57:41,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-12-14 09:57:41,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-12-14 09:57:41,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-12-14 09:57:41,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-12-14 09:57:41,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-12-14 09:57:41,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-12-14 09:57:41,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 09:57:41,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-14 09:57:41,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 09:57:46,751 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-12-14 09:57:46,751 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 09:57:46,751 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-12-14 09:57:46,751 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-12-14 09:57:46,751 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2022-12-14 09:57:46,751 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2022-12-14 09:57:46,751 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-12-14 09:57:46,751 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2022-12-14 09:57:46,751 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 09:57:46,751 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-12-14 09:57:46,751 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-12-14 09:57:46,751 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-12-14 09:57:46,752 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2022-12-14 09:57:46,752 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2022-12-14 09:57:46,752 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 27) the Hoare annotation is: (let ((.cse6 (+ |ULTIMATE.start_main_~d2~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse0 (<= |ULTIMATE.start_main_~d1~0#1| 73)) (.cse3 (<= |ULTIMATE.start_main_~d2~0#1| 74))) (let ((.cse2 (<= |ULTIMATE.start_main_~d1~0#1| 75)) (.cse4 (= (+ |ULTIMATE.start_main_~d1old~0#1| 1) |ULTIMATE.start_main_~d2~0#1|)) (.cse1 (let ((.cse8 (<= 74 |ULTIMATE.start_main_~d2~0#1|))) (or (and .cse0 (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 73 |ULTIMATE.start_main_~d1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) .cse3 .cse8) (and (<= |ULTIMATE.start_main_~d2~0#1| 2147483647) (<= 75 |ULTIMATE.start_main_~d1~0#1|) (<= |ULTIMATE.start_main_~d1~0#1| 2147483647) .cse8)))) (.cse7 (<= |ULTIMATE.start_main_~d2~0#1| 76)) (.cse5 (<= 1 .cse6))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4 .cse1 .cse5 (<= .cse6 2147483648)) (and (<= |ULTIMATE.start_main_~d1~0#1| 2147483645) (<= |ULTIMATE.start_main_~d1old~0#1| 2147483645) (or (and (<= 78 |ULTIMATE.start_main_~d2~0#1|) (<= (+ |ULTIMATE.start_main_~d1~0#1| |ULTIMATE.start_main_~x~0#1|) 2147483570) .cse4 .cse1 (<= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|) 2147483647)) (and .cse4 .cse1 (<= (+ |ULTIMATE.start_main_~x~0#1| (* 2 |ULTIMATE.start_main_~d1old~0#1|)) 2147483570) (<= 79 |ULTIMATE.start_main_~d1~0#1|))) .cse5 (<= (+ (* |ULTIMATE.start_main_~d2~0#1| 4) (* 3 |ULTIMATE.start_main_~x~0#1|)) 8589934576)) (and (<= |ULTIMATE.start_main_~d1old~0#1| 75) .cse2 (<= 75 |ULTIMATE.start_main_~d1old~0#1|) .cse1 (<= 76 |ULTIMATE.start_main_~d2~0#1|) .cse7 (<= |ULTIMATE.start_main_~x~0#1| 2147483499) .cse5) (and (<= .cse6 2147483500) (<= |ULTIMATE.start_main_~d1~0#1| 77) (<= 77 |ULTIMATE.start_main_~d1~0#1|) .cse4 .cse1 .cse7 .cse5)))) [2022-12-14 09:57:46,754 INFO L445 BasicCegarLoop]: Path program histogram: [5, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:57:46,756 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:57:46,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:57:46 BoogieIcfgContainer [2022-12-14 09:57:46,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:57:46,768 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:57:46,769 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:57:46,769 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:57:46,769 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:55:58" (3/4) ... [2022-12-14 09:57:46,771 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 09:57:46,777 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-12-14 09:57:46,777 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 09:57:46,777 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 09:57:46,792 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((d1 <= 73 && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) || (((((d1 <= 75 && d2 <= 74) && d1\old + 1 == d2) && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) && 1 <= d2 + x) && d2 + x <= 2147483648)) || ((((d1 <= 2147483645 && d1\old <= 2147483645) && (((((78 <= d2 && d1 + x <= 2147483570) && d1\old + 1 == d2) && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) && x + d1\old <= 2147483647) || (((d1\old + 1 == d2 && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) && x + 2 * d1\old <= 2147483570) && 79 <= d1))) && 1 <= d2 + x) && d2 * 4 + 3 * x <= 8589934576)) || (((((((d1\old <= 75 && d1 <= 75) && 75 <= d1\old) && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) && 76 <= d2) && d2 <= 76) && x <= 2147483499) && 1 <= d2 + x)) || ((((((d2 + x <= 2147483500 && d1 <= 77) && 77 <= d1) && d1\old + 1 == d2) && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) && d2 <= 76) && 1 <= d2 + x) [2022-12-14 09:57:46,795 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 09:57:46,795 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:57:46,796 INFO L158 Benchmark]: Toolchain (without parser) took 108341.11ms. Allocated memory was 115.3MB in the beginning and 411.0MB in the end (delta: 295.7MB). Free memory was 80.1MB in the beginning and 164.3MB in the end (delta: -84.1MB). Peak memory consumption was 212.2MB. Max. memory is 16.1GB. [2022-12-14 09:57:46,796 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 115.3MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:57:46,796 INFO L158 Benchmark]: CACSL2BoogieTranslator took 133.22ms. Allocated memory is still 115.3MB. Free memory was 79.9MB in the beginning and 70.7MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 09:57:46,796 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.45ms. Allocated memory is still 115.3MB. Free memory was 70.7MB in the beginning and 69.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:57:46,796 INFO L158 Benchmark]: Boogie Preprocessor took 12.43ms. Allocated memory is still 115.3MB. Free memory was 69.5MB in the beginning and 68.5MB in the end (delta: 979.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:57:46,796 INFO L158 Benchmark]: RCFGBuilder took 189.34ms. Allocated memory is still 115.3MB. Free memory was 68.2MB in the beginning and 59.0MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 09:57:46,797 INFO L158 Benchmark]: TraceAbstraction took 107955.36ms. Allocated memory was 115.3MB in the beginning and 411.0MB in the end (delta: 295.7MB). Free memory was 58.1MB in the beginning and 166.4MB in the end (delta: -108.3MB). Peak memory consumption was 273.1MB. Max. memory is 16.1GB. [2022-12-14 09:57:46,797 INFO L158 Benchmark]: Witness Printer took 26.95ms. Allocated memory is still 411.0MB. Free memory was 166.4MB in the beginning and 164.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:57:46,798 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 115.3MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 133.22ms. Allocated memory is still 115.3MB. Free memory was 79.9MB in the beginning and 70.7MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.45ms. Allocated memory is still 115.3MB. Free memory was 70.7MB in the beginning and 69.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.43ms. Allocated memory is still 115.3MB. Free memory was 69.5MB in the beginning and 68.5MB in the end (delta: 979.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 189.34ms. Allocated memory is still 115.3MB. Free memory was 68.2MB in the beginning and 59.0MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 107955.36ms. Allocated memory was 115.3MB in the beginning and 411.0MB in the end (delta: 295.7MB). Free memory was 58.1MB in the beginning and 166.4MB in the end (delta: -108.3MB). Peak memory consumption was 273.1MB. Max. memory is 16.1GB. * Witness Printer took 26.95ms. Allocated memory is still 411.0MB. Free memory was 166.4MB in the beginning and 164.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 107.9s, OverallIterations: 14, TraceHistogramMax: 74, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 81.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10268 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10268 mSDsluCounter, 395 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 316 mSDsCounter, 1455 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5001 IncrementalHoareTripleChecker+Invalid, 6456 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1455 mSolverCounterUnsat, 79 mSDtfsCounter, 5001 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4045 GetRequests, 2928 SyntacticMatches, 18 SemanticMatches, 1099 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82775 ImplicationChecksByTransitivity, 87.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=520occurred in iteration=13, InterpolantAutomatonStates: 636, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 35 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 76 NumberOfFragments, 343 HoareAnnotationTreeSize, 1 FomulaSimplifications, 2120 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 1 FomulaSimplificationsInter, 23210 FormulaSimplificationTreeSizeReductionInter, 3.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 15.6s InterpolantComputationTime, 2187 NumberOfCodeBlocks, 1753 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 3234 ConstructedInterpolants, 0 QuantifiedInterpolants, 9748 SizeOfPredicates, 157 NumberOfNonLiveVariables, 1409 ConjunctsInSsa, 186 ConjunctsInUnsatCore, 30 InterpolantComputations, 6 PerfectInterpolantSequences, 37246/75369 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 0.3s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 10, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 45, TOOLS_POST_TIME: 0.2s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 45, TOOLS_QUANTIFIERELIM_TIME: 0.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 66, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 5, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 10, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.2s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.2s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 5, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 91, DAG_COMPRESSION_RETAINED_NODES: 32, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((d1 <= 73 && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) || (((((d1 <= 75 && d2 <= 74) && d1\old + 1 == d2) && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) && 1 <= d2 + x) && d2 + x <= 2147483648)) || ((((d1 <= 2147483645 && d1\old <= 2147483645) && (((((78 <= d2 && d1 + x <= 2147483570) && d1\old + 1 == d2) && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) && x + d1\old <= 2147483647) || (((d1\old + 1 == d2 && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) && x + 2 * d1\old <= 2147483570) && 79 <= d1))) && 1 <= d2 + x) && d2 * 4 + 3 * x <= 8589934576)) || (((((((d1\old <= 75 && d1 <= 75) && 75 <= d1\old) && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) && 76 <= d2) && d2 <= 76) && x <= 2147483499) && 1 <= d2 + x)) || ((((((d2 + x <= 2147483500 && d1 <= 77) && 77 <= d1) && d1\old + 1 == d2) && ((((((d1 <= 73 && x <= 2147483647) && 73 <= d1) && 0 <= x + 2147483648) && d2 <= 74) && 74 <= d2) || (((d2 <= 2147483647 && 75 <= d1) && d1 <= 2147483647) && 74 <= d2))) && d2 <= 76) && 1 <= d2 + x) RESULT: Ultimate proved your program to be correct! [2022-12-14 09:57:46,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_013da47c-5ad9-43c2-b68a-a19f6f83b35f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE