./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 8393723b 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_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Benghazi.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 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-8393723 [2022-11-18 18:45:37,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:45:37,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:45:37,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:45:37,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:45:37,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:45:37,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:45:37,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:45:37,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:45:37,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:45:37,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:45:37,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:45:37,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:45:37,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:45:37,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:45:37,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:45:37,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:45:37,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:45:37,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:45:37,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:45:37,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:45:37,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:45:37,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:45:37,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:45:37,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:45:37,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:45:37,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:45:37,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:45:37,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:45:37,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:45:37,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:45:37,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:45:37,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:45:37,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:45:37,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:45:37,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:45:37,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:45:37,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:45:37,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:45:37,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:45:37,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:45:37,643 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-18 18:45:37,701 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:45:37,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:45:37,702 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:45:37,703 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:45:37,704 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:45:37,704 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:45:37,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:45:37,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:45:37,705 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:45:37,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:45:37,705 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:45:37,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:45:37,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:45:37,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:45:37,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:45:37,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:45:37,707 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 18:45:37,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:45:37,707 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:45:37,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:45:37,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:45:37,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:45:37,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:45:37,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:45:37,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:45:37,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:45:37,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:45:37,709 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:45:37,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:45:37,709 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:45:37,709 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:45:37,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:45:37,710 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_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9edf84ee73e15e033440f38035e679f46457b07702832d589a58530a086e57e5 [2022-11-18 18:45:38,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:45:38,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:45:38,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:45:38,128 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:45:38,129 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:45:38,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-crafted/Benghazi.c [2022-11-18 18:45:38,214 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/data/bb6bc4e70/e6664a31c3fb4ac5b7f7b756235d8066/FLAGded2cdd28 [2022-11-18 18:45:38,802 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:45:38,802 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/sv-benchmarks/c/termination-crafted/Benghazi.c [2022-11-18 18:45:38,809 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/data/bb6bc4e70/e6664a31c3fb4ac5b7f7b756235d8066/FLAGded2cdd28 [2022-11-18 18:45:39,153 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/data/bb6bc4e70/e6664a31c3fb4ac5b7f7b756235d8066 [2022-11-18 18:45:39,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:45:39,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:45:39,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:45:39,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:45:39,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:45:39,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:45:39" (1/1) ... [2022-11-18 18:45:39,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ced8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:39, skipping insertion in model container [2022-11-18 18:45:39,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:45:39" (1/1) ... [2022-11-18 18:45:39,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:45:39,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:45:39,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:45:39,359 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:45:39,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:45:39,410 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:45:39,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:39 WrapperNode [2022-11-18 18:45:39,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:45:39,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:45:39,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:45:39,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:45:39,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:39" (1/1) ... [2022-11-18 18:45:39,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:39" (1/1) ... [2022-11-18 18:45:39,451 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-11-18 18:45:39,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:45:39,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:45:39,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:45:39,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:45:39,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:39" (1/1) ... [2022-11-18 18:45:39,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:39" (1/1) ... [2022-11-18 18:45:39,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:39" (1/1) ... [2022-11-18 18:45:39,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:39" (1/1) ... [2022-11-18 18:45:39,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:39" (1/1) ... [2022-11-18 18:45:39,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:39" (1/1) ... [2022-11-18 18:45:39,470 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:39" (1/1) ... [2022-11-18 18:45:39,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:39" (1/1) ... [2022-11-18 18:45:39,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:45:39,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:45:39,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:45:39,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:45:39,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:39" (1/1) ... [2022-11-18 18:45:39,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:45:39,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:45:39,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:45:39,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:45:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:45:39,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:45:39,638 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:45:39,640 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:45:39,735 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:45:39,743 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:45:39,743 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 18:45:39,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:45:39 BoogieIcfgContainer [2022-11-18 18:45:39,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:45:39,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:45:39,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:45:39,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:45:39,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:45:39" (1/3) ... [2022-11-18 18:45:39,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@933b2f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:45:39, skipping insertion in model container [2022-11-18 18:45:39,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:45:39" (2/3) ... [2022-11-18 18:45:39,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@933b2f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:45:39, skipping insertion in model container [2022-11-18 18:45:39,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:45:39" (3/3) ... [2022-11-18 18:45:39,757 INFO L112 eAbstractionObserver]: Analyzing ICFG Benghazi.c [2022-11-18 18:45:39,782 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:45:39,782 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-18 18:45:39,842 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:45:39,851 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@48354953, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:45:39,851 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-18 18:45:39,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:39,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-18 18:45:39,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:39,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-18 18:45:39,874 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)] === [2022-11-18 18:45:39,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:39,882 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-11-18 18:45:39,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:39,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222521051] [2022-11-18 18:45:39,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:39,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:40,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:40,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:40,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222521051] [2022-11-18 18:45:40,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222521051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:45:40,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:45:40,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:45:40,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160117859] [2022-11-18 18:45:40,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:45:40,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:45:40,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:40,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:45:40,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:45:40,263 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:40,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:40,369 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-11-18 18:45:40,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:45:40,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-18 18:45:40,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:40,401 INFO L225 Difference]: With dead ends: 31 [2022-11-18 18:45:40,402 INFO L226 Difference]: Without dead ends: 18 [2022-11-18 18:45:40,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:45:40,410 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:40,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 25 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:45:40,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-18 18:45:40,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-11-18 18:45:40,486 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) [2022-11-18 18:45:40,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-11-18 18:45:40,504 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 4 [2022-11-18 18:45:40,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:40,505 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-11-18 18:45:40,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:40,506 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-11-18 18:45:40,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 18:45:40,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:40,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 18:45:40,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:45:40,507 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)] === [2022-11-18 18:45:40,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:40,508 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2022-11-18 18:45:40,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:40,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988372920] [2022-11-18 18:45:40,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:40,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:40,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:40,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:40,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988372920] [2022-11-18 18:45:40,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988372920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:45:40,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:45:40,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:45:40,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827462400] [2022-11-18 18:45:40,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:45:40,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:45:40,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:40,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:45:40,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:45:40,613 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:40,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:40,656 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2022-11-18 18:45:40,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:45:40,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 18:45:40,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:40,658 INFO L225 Difference]: With dead ends: 23 [2022-11-18 18:45:40,658 INFO L226 Difference]: Without dead ends: 22 [2022-11-18 18:45:40,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:45:40,661 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 6 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:40,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 30 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:45:40,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-18 18:45:40,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2022-11-18 18:45:40,668 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) [2022-11-18 18:45:40,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-18 18:45:40,669 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 5 [2022-11-18 18:45:40,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:40,669 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-18 18:45:40,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:40,670 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-18 18:45:40,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 18:45:40,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:40,671 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 18:45:40,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:45:40,672 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)] === [2022-11-18 18:45:40,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:40,673 INFO L85 PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times [2022-11-18 18:45:40,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:40,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24961694] [2022-11-18 18:45:40,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:40,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:40,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:40,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:40,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24961694] [2022-11-18 18:45:40,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24961694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:45:40,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:45:40,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:45:40,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613342182] [2022-11-18 18:45:40,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:45:40,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:45:40,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:40,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:45:40,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:45:40,747 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), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:40,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:40,768 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2022-11-18 18:45:40,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:45:40,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-18 18:45:40,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:40,770 INFO L225 Difference]: With dead ends: 25 [2022-11-18 18:45:40,771 INFO L226 Difference]: Without dead ends: 24 [2022-11-18 18:45:40,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:45:40,774 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:40,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 21 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:45:40,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-18 18:45:40,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 19. [2022-11-18 18:45:40,779 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) [2022-11-18 18:45:40,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2022-11-18 18:45:40,780 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 6 [2022-11-18 18:45:40,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:40,780 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2022-11-18 18:45:40,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:40,781 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2022-11-18 18:45:40,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 18:45:40,781 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:40,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:45:40,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:45:40,782 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)] === [2022-11-18 18:45:40,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:40,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629611, now seen corresponding path program 1 times [2022-11-18 18:45:40,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:40,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522064569] [2022-11-18 18:45:40,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:40,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:40,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:40,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:40,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522064569] [2022-11-18 18:45:40,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522064569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:45:40,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:45:40,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:45:40,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661739816] [2022-11-18 18:45:40,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:45:40,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:45:40,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:40,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:45:40,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:45:40,886 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:40,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:40,906 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2022-11-18 18:45:40,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:45:40,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-18 18:45:40,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:40,911 INFO L225 Difference]: With dead ends: 25 [2022-11-18 18:45:40,911 INFO L226 Difference]: Without dead ends: 24 [2022-11-18 18:45:40,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:45:40,913 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:40,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 22 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:45:40,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-18 18:45:40,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2022-11-18 18:45:40,924 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) [2022-11-18 18:45:40,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2022-11-18 18:45:40,924 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 7 [2022-11-18 18:45:40,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:40,925 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2022-11-18 18:45:40,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:40,925 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2022-11-18 18:45:40,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 18:45:40,926 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:40,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:45:40,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:45:40,927 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)] === [2022-11-18 18:45:40,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:40,928 INFO L85 PathProgramCache]: Analyzing trace with hash 294943144, now seen corresponding path program 1 times [2022-11-18 18:45:40,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:40,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154386782] [2022-11-18 18:45:40,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:40,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:40,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:40,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:40,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154386782] [2022-11-18 18:45:40,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154386782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:45:40,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:45:40,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:45:40,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753485292] [2022-11-18 18:45:40,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:45:40,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:45:40,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:40,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:45:40,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:45:40,997 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), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:41,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:41,046 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2022-11-18 18:45:41,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:45:41,047 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 18:45:41,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:41,048 INFO L225 Difference]: With dead ends: 28 [2022-11-18 18:45:41,048 INFO L226 Difference]: Without dead ends: 27 [2022-11-18 18:45:41,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:45:41,058 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 9 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:41,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 27 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:45:41,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-18 18:45:41,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2022-11-18 18:45:41,063 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) [2022-11-18 18:45:41,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2022-11-18 18:45:41,064 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 8 [2022-11-18 18:45:41,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:41,064 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2022-11-18 18:45:41,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:41,065 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2022-11-18 18:45:41,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 18:45:41,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:41,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:45:41,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:45:41,066 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)] === [2022-11-18 18:45:41,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:41,075 INFO L85 PathProgramCache]: Analyzing trace with hash 553302925, now seen corresponding path program 1 times [2022-11-18 18:45:41,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:41,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493456705] [2022-11-18 18:45:41,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:41,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:41,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:41,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:41,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493456705] [2022-11-18 18:45:41,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493456705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:45:41,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:45:41,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:45:41,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554324169] [2022-11-18 18:45:41,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:45:41,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:45:41,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:41,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:45:41,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:45:41,206 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:41,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:41,247 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2022-11-18 18:45:41,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:45:41,248 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 18:45:41,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:41,249 INFO L225 Difference]: With dead ends: 28 [2022-11-18 18:45:41,249 INFO L226 Difference]: Without dead ends: 27 [2022-11-18 18:45:41,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:45:41,251 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 7 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:41,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 29 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:45:41,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-18 18:45:41,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 22. [2022-11-18 18:45:41,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.375) internal successors, (22), 21 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:41,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2022-11-18 18:45:41,257 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 9 [2022-11-18 18:45:41,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:41,258 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2022-11-18 18:45:41,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:41,258 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2022-11-18 18:45:41,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 18:45:41,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:41,259 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:45:41,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:45:41,260 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)] === [2022-11-18 18:45:41,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:41,261 INFO L85 PathProgramCache]: Analyzing trace with hash -851832465, now seen corresponding path program 1 times [2022-11-18 18:45:41,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:41,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790700160] [2022-11-18 18:45:41,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:41,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:41,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:41,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:41,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790700160] [2022-11-18 18:45:41,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790700160] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:45:41,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064839619] [2022-11-18 18:45:41,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:41,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:41,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:45:41,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:45:41,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:45:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:41,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 18:45:41,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:45:41,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:41,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:45:41,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:41,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064839619] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:45:41,707 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:45:41,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-11-18 18:45:41,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968029708] [2022-11-18 18:45:41,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:45:41,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 18:45:41,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:41,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 18:45:41,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:45:41,710 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:41,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:41,835 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2022-11-18 18:45:41,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 18:45:41,836 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 18:45:41,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:41,837 INFO L225 Difference]: With dead ends: 31 [2022-11-18 18:45:41,838 INFO L226 Difference]: Without dead ends: 30 [2022-11-18 18:45:41,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:45:41,840 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 24 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:41,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 31 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:45:41,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-18 18:45:41,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2022-11-18 18:45:41,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 23 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:41,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2022-11-18 18:45:41,846 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 11 [2022-11-18 18:45:41,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:41,847 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2022-11-18 18:45:41,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:41,848 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2022-11-18 18:45:41,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 18:45:41,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:41,848 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:45:41,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:45:42,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:42,065 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:45:42,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:42,066 INFO L85 PathProgramCache]: Analyzing trace with hash -637002594, now seen corresponding path program 1 times [2022-11-18 18:45:42,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:42,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847858731] [2022-11-18 18:45:42,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:42,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:42,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:42,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:42,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847858731] [2022-11-18 18:45:42,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847858731] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:45:42,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782786697] [2022-11-18 18:45:42,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:42,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:42,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:45:42,138 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:45:42,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 18:45:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:42,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:45:42,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:45:42,267 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:42,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:45:42,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:42,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782786697] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:45:42,349 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:45:42,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-11-18 18:45:42,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889570818] [2022-11-18 18:45:42,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:45:42,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:45:42,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:42,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:45:42,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:45:42,363 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:42,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:42,546 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2022-11-18 18:45:42,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:45:42,547 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 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 12 [2022-11-18 18:45:42,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:42,549 INFO L225 Difference]: With dead ends: 29 [2022-11-18 18:45:42,549 INFO L226 Difference]: Without dead ends: 28 [2022-11-18 18:45:42,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:45:42,555 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 41 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:42,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 37 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:45:42,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-18 18:45:42,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2022-11-18 18:45:42,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 22 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:42,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2022-11-18 18:45:42,569 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 12 [2022-11-18 18:45:42,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:42,570 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2022-11-18 18:45:42,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:42,571 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2022-11-18 18:45:42,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 18:45:42,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:42,572 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:45:42,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:45:42,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:42,793 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:45:42,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:42,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1727756113, now seen corresponding path program 1 times [2022-11-18 18:45:42,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:42,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358684928] [2022-11-18 18:45:42,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:42,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:42,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:42,849 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:42,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:42,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358684928] [2022-11-18 18:45:42,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358684928] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:45:42,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280799605] [2022-11-18 18:45:42,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:42,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:42,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:45:42,851 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:45:42,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 18:45:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:42,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:45:42,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:45:42,949 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:42,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:45:42,996 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:42,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280799605] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:45:42,996 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:45:42,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-18 18:45:42,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136136568] [2022-11-18 18:45:42,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:45:42,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:45:42,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:42,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:45:43,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:45:43,001 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:43,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:43,181 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2022-11-18 18:45:43,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 18:45:43,181 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-18 18:45:43,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:43,184 INFO L225 Difference]: With dead ends: 45 [2022-11-18 18:45:43,184 INFO L226 Difference]: Without dead ends: 43 [2022-11-18 18:45:43,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-18 18:45:43,188 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 58 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:43,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 26 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:45:43,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-18 18:45:43,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2022-11-18 18:45:43,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 38 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:43,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2022-11-18 18:45:43,203 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 13 [2022-11-18 18:45:43,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:43,203 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2022-11-18 18:45:43,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:43,203 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2022-11-18 18:45:43,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 18:45:43,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:43,204 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 18:45:43,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:45:43,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-18 18:45:43,410 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)] === [2022-11-18 18:45:43,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:43,411 INFO L85 PathProgramCache]: Analyzing trace with hash 2020832000, now seen corresponding path program 1 times [2022-11-18 18:45:43,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:43,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105263661] [2022-11-18 18:45:43,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:43,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:43,477 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:43,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:43,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105263661] [2022-11-18 18:45:43,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105263661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:45:43,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:45:43,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:45:43,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740188652] [2022-11-18 18:45:43,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:45:43,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:45:43,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:43,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:45:43,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:45:43,480 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:43,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:43,490 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2022-11-18 18:45:43,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:45:43,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-18 18:45:43,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:43,494 INFO L225 Difference]: With dead ends: 39 [2022-11-18 18:45:43,495 INFO L226 Difference]: Without dead ends: 38 [2022-11-18 18:45:43,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:45:43,496 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:43,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 11 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:45:43,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-18 18:45:43,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-18 18:45:43,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 37 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:43,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-11-18 18:45:43,518 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 14 [2022-11-18 18:45:43,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:43,518 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-11-18 18:45:43,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:43,519 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-11-18 18:45:43,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 18:45:43,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:43,519 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-18 18:45:43,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 18:45:43,520 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)] === [2022-11-18 18:45:43,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:43,521 INFO L85 PathProgramCache]: Analyzing trace with hash 694335842, now seen corresponding path program 1 times [2022-11-18 18:45:43,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:43,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395226163] [2022-11-18 18:45:43,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:43,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:43,621 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:43,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:43,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395226163] [2022-11-18 18:45:43,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395226163] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:45:43,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271368150] [2022-11-18 18:45:43,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:43,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:43,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:45:43,624 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:45:43,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 18:45:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:43,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:45:43,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:45:43,723 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:43,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:45:43,789 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:43,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271368150] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:45:43,789 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:45:43,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-18 18:45:43,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176190387] [2022-11-18 18:45:43,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:45:43,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:45:43,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:43,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:45:43,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:45:43,792 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:43,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:43,976 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2022-11-18 18:45:43,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 18:45:43,977 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 8 states have internal predecessors, (31), 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 16 [2022-11-18 18:45:43,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:43,978 INFO L225 Difference]: With dead ends: 48 [2022-11-18 18:45:43,978 INFO L226 Difference]: Without dead ends: 47 [2022-11-18 18:45:43,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:45:43,979 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 36 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:43,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 16 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:45:43,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-18 18:45:43,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 37. [2022-11-18 18:45:43,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 36 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:43,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2022-11-18 18:45:43,984 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 16 [2022-11-18 18:45:43,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:43,985 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2022-11-18 18:45:43,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:43,985 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-11-18 18:45:43,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-18 18:45:43,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:43,986 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2022-11-18 18:45:44,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:45:44,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 18:45:44,192 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:45:44,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:44,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1536814596, now seen corresponding path program 2 times [2022-11-18 18:45:44,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:44,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479049453] [2022-11-18 18:45:44,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:44,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:44,322 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:44,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:44,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479049453] [2022-11-18 18:45:44,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479049453] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:45:44,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222911826] [2022-11-18 18:45:44,323 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:45:44,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:44,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:45:44,324 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:45:44,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 18:45:44,379 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:45:44,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:45:44,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 18:45:44,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:45:44,665 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:44,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:45:44,897 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:44,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222911826] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:45:44,898 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:45:44,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2022-11-18 18:45:44,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897201467] [2022-11-18 18:45:44,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:45:44,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 18:45:44,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:44,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 18:45:44,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2022-11-18 18:45:44,907 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 20 states, 19 states have (on average 2.736842105263158) internal successors, (52), 20 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:45,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:45,055 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2022-11-18 18:45:45,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:45:45,056 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.736842105263158) internal successors, (52), 20 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-18 18:45:45,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:45,057 INFO L225 Difference]: With dead ends: 37 [2022-11-18 18:45:45,057 INFO L226 Difference]: Without dead ends: 36 [2022-11-18 18:45:45,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2022-11-18 18:45:45,058 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 48 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:45,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 12 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:45:45,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-18 18:45:45,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-18 18:45:45,063 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) [2022-11-18 18:45:45,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2022-11-18 18:45:45,064 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 18 [2022-11-18 18:45:45,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:45,064 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2022-11-18 18:45:45,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.736842105263158) internal successors, (52), 20 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:45,064 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2022-11-18 18:45:45,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 18:45:45,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:45,065 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1, 1] [2022-11-18 18:45:45,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 18:45:45,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 18:45:45,272 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:45:45,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:45,273 INFO L85 PathProgramCache]: Analyzing trace with hash 906255251, now seen corresponding path program 1 times [2022-11-18 18:45:45,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:45,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101036797] [2022-11-18 18:45:45,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:45,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:45,415 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:45,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:45,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101036797] [2022-11-18 18:45:45,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101036797] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:45:45,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161461578] [2022-11-18 18:45:45,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:45,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:45,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:45:45,418 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:45:45,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 18:45:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:45,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 18:45:45,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:45:45,552 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:45,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:45:45,676 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:45,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161461578] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:45:45,677 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:45:45,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-11-18 18:45:45,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317110428] [2022-11-18 18:45:45,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:45:45,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 18:45:45,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:45,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 18:45:45,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-18 18:45:45,680 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 14 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:45,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:45,966 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2022-11-18 18:45:45,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:45:45,967 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 14 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 18:45:45,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:45,968 INFO L225 Difference]: With dead ends: 69 [2022-11-18 18:45:45,968 INFO L226 Difference]: Without dead ends: 67 [2022-11-18 18:45:45,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=208, Invalid=442, Unknown=0, NotChecked=0, Total=650 [2022-11-18 18:45:45,969 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 92 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:45,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 40 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:45:45,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-18 18:45:45,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2022-11-18 18:45:45,984 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) [2022-11-18 18:45:45,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2022-11-18 18:45:45,988 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 29 [2022-11-18 18:45:45,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:45,989 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2022-11-18 18:45:45,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 14 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:45,990 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2022-11-18 18:45:45,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-18 18:45:45,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:45,992 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 1, 1, 1] [2022-11-18 18:45:46,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-18 18:45:46,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 18:45:46,198 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:45:46,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:46,199 INFO L85 PathProgramCache]: Analyzing trace with hash 2015761009, now seen corresponding path program 2 times [2022-11-18 18:45:46,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:46,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991624812] [2022-11-18 18:45:46,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:46,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:46,558 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:46,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:46,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991624812] [2022-11-18 18:45:46,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991624812] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:45:46,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804391853] [2022-11-18 18:45:46,559 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:45:46,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:46,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:45:46,561 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:45:46,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 18:45:46,632 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:45:46,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:45:46,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-18 18:45:46,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:45:46,789 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:46,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:45:47,112 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:47,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804391853] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:45:47,112 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:45:47,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-11-18 18:45:47,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62070763] [2022-11-18 18:45:47,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:45:47,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-18 18:45:47,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:47,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-18 18:45:47,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2022-11-18 18:45:47,120 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand has 26 states, 25 states have (on average 4.36) internal successors, (109), 26 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:47,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:47,881 INFO L93 Difference]: Finished difference Result 122 states and 136 transitions. [2022-11-18 18:45:47,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-18 18:45:47,882 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.36) internal successors, (109), 26 states have internal predecessors, (109), 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 [2022-11-18 18:45:47,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:47,883 INFO L225 Difference]: With dead ends: 122 [2022-11-18 18:45:47,883 INFO L226 Difference]: Without dead ends: 120 [2022-11-18 18:45:47,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=750, Invalid=1700, Unknown=0, NotChecked=0, Total=2450 [2022-11-18 18:45:47,885 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 269 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:47,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 48 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:45:47,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-11-18 18:45:47,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2022-11-18 18:45:47,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 118 states have (on average 1.0169491525423728) internal successors, (120), 119 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:47,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 120 transitions. [2022-11-18 18:45:47,916 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 120 transitions. Word has length 55 [2022-11-18 18:45:47,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:47,917 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 120 transitions. [2022-11-18 18:45:47,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.36) internal successors, (109), 26 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:47,918 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 120 transitions. [2022-11-18 18:45:47,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-18 18:45:47,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:47,921 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 15, 15, 1, 1, 1] [2022-11-18 18:45:47,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 18:45:48,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:48,128 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:45:48,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:48,128 INFO L85 PathProgramCache]: Analyzing trace with hash 875637203, now seen corresponding path program 2 times [2022-11-18 18:45:48,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:48,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751917979] [2022-11-18 18:45:48,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:48,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:49,002 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 0 proven. 825 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:49,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:49,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751917979] [2022-11-18 18:45:49,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751917979] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:45:49,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738960762] [2022-11-18 18:45:49,002 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:45:49,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:49,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:45:49,011 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:45:49,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 18:45:49,111 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:45:49,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:45:49,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-18 18:45:49,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:45:49,323 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 0 proven. 825 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:49,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:45:50,209 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 0 proven. 825 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:50,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738960762] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:45:50,209 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:45:50,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2022-11-18 18:45:50,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598678149] [2022-11-18 18:45:50,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:45:50,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-18 18:45:50,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:50,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-18 18:45:50,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=457, Invalid=1993, Unknown=0, NotChecked=0, Total=2450 [2022-11-18 18:45:50,213 INFO L87 Difference]: Start difference. First operand 120 states and 120 transitions. Second operand has 50 states, 49 states have (on average 4.591836734693878) internal successors, (225), 50 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:52,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:52,314 INFO L93 Difference]: Finished difference Result 237 states and 267 transitions. [2022-11-18 18:45:52,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-18 18:45:52,315 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 4.591836734693878) internal successors, (225), 50 states have internal predecessors, (225), 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 113 [2022-11-18 18:45:52,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:52,319 INFO L225 Difference]: With dead ends: 237 [2022-11-18 18:45:52,319 INFO L226 Difference]: Without dead ends: 235 [2022-11-18 18:45:52,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2146 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2842, Invalid=6664, Unknown=0, NotChecked=0, Total=9506 [2022-11-18 18:45:52,328 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 596 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:52,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 83 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 18:45:52,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-11-18 18:45:52,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 234. [2022-11-18 18:45:52,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 232 states have (on average 1.0129310344827587) internal successors, (235), 233 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:52,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 235 transitions. [2022-11-18 18:45:52,379 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 235 transitions. Word has length 113 [2022-11-18 18:45:52,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:52,381 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 235 transitions. [2022-11-18 18:45:52,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 4.591836734693878) internal successors, (225), 50 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:52,382 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 235 transitions. [2022-11-18 18:45:52,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-18 18:45:52,399 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:52,399 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 31, 31, 31, 31, 1, 1, 1] [2022-11-18 18:45:52,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 18:45:52,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-18 18:45:52,600 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:45:52,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:52,601 INFO L85 PathProgramCache]: Analyzing trace with hash 863858417, now seen corresponding path program 3 times [2022-11-18 18:45:52,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:52,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891689718] [2022-11-18 18:45:52,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:52,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:52,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:45:55,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3379 backedges. 0 proven. 3379 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:45:55,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:45:55,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891689718] [2022-11-18 18:45:55,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891689718] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:45:55,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727953116] [2022-11-18 18:45:55,152 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 18:45:55,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:45:55,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:45:55,167 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:45:55,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 18:45:55,255 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-18 18:45:55,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:45:55,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 18:45:55,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:45:56,285 INFO L134 CoverageAnalysis]: Checked inductivity of 3379 backedges. 1131 proven. 123 refuted. 0 times theorem prover too weak. 2125 trivial. 0 not checked. [2022-11-18 18:45:56,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:45:57,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3379 backedges. 1131 proven. 123 refuted. 0 times theorem prover too weak. 2125 trivial. 0 not checked. [2022-11-18 18:45:57,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727953116] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:45:57,896 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:45:57,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 19, 19] total 84 [2022-11-18 18:45:57,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400199413] [2022-11-18 18:45:57,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:45:57,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2022-11-18 18:45:57,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:57,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2022-11-18 18:45:57,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=719, Invalid=6421, Unknown=0, NotChecked=0, Total=7140 [2022-11-18 18:45:57,903 INFO L87 Difference]: Start difference. First operand 234 states and 235 transitions. Second operand has 85 states, 84 states have (on average 3.8095238095238093) internal successors, (320), 85 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:46:23,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:46:23,512 INFO L93 Difference]: Finished difference Result 235 states and 236 transitions. [2022-11-18 18:46:23,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-11-18 18:46:23,513 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 84 states have (on average 3.8095238095238093) internal successors, (320), 85 states have internal predecessors, (320), 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 223 [2022-11-18 18:46:23,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:46:23,515 INFO L225 Difference]: With dead ends: 235 [2022-11-18 18:46:23,516 INFO L226 Difference]: Without dead ends: 234 [2022-11-18 18:46:23,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 658 GetRequests, 409 SyntacticMatches, 1 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17032 ImplicationChecksByTransitivity, 27.1s TimeCoverageRelationStatistics Valid=13011, Invalid=49239, Unknown=0, NotChecked=0, Total=62250 [2022-11-18 18:46:23,526 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2358 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2358 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:46:23,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2358 Valid, 27 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-18 18:46:23,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-11-18 18:46:23,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 233. [2022-11-18 18:46:23,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 232 states have (on average 1.0043103448275863) internal successors, (233), 232 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:46:23,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 233 transitions. [2022-11-18 18:46:23,551 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 233 transitions. Word has length 223 [2022-11-18 18:46:23,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:46:23,552 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 233 transitions. [2022-11-18 18:46:23,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 84 states have (on average 3.8095238095238093) internal successors, (320), 85 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:46:23,553 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 233 transitions. [2022-11-18 18:46:23,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-18 18:46:23,557 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:46:23,557 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 32, 32, 1, 1, 1] [2022-11-18 18:46:23,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-18 18:46:23,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 18:46:23,778 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 18:46:23,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:46:23,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1072370600, now seen corresponding path program 3 times [2022-11-18 18:46:23,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:46:23,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713597640] [2022-11-18 18:46:23,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:46:23,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:46:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:46:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 3664 backedges. 0 proven. 3664 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:46:26,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:46:26,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713597640] [2022-11-18 18:46:26,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713597640] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:46:26,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224857107] [2022-11-18 18:46:26,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 18:46:26,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:46:26,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:46:26,195 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:46:26,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 18:46:26,287 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-11-18 18:46:26,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:46:26,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-18 18:46:26,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:46:28,016 INFO L134 CoverageAnalysis]: Checked inductivity of 3664 backedges. 1573 proven. 297 refuted. 0 times theorem prover too weak. 1794 trivial. 0 not checked. [2022-11-18 18:46:28,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:46:30,778 INFO L134 CoverageAnalysis]: Checked inductivity of 3664 backedges. 1573 proven. 297 refuted. 0 times theorem prover too weak. 1794 trivial. 0 not checked. [2022-11-18 18:46:30,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224857107] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:46:30,779 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:46:30,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 27, 27] total 103 [2022-11-18 18:46:30,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943809950] [2022-11-18 18:46:30,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:46:30,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-11-18 18:46:30,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:46:30,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-11-18 18:46:30,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=890, Invalid=9822, Unknown=0, NotChecked=0, Total=10712 [2022-11-18 18:46:30,784 INFO L87 Difference]: Start difference. First operand 233 states and 233 transitions. Second operand has 104 states, 103 states have (on average 3.6699029126213594) internal successors, (378), 104 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:47:12,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:47:12,211 INFO L93 Difference]: Finished difference Result 246 states and 247 transitions. [2022-11-18 18:47:12,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2022-11-18 18:47:12,212 INFO L78 Accepts]: Start accepts. Automaton has has 104 states, 103 states have (on average 3.6699029126213594) internal successors, (378), 104 states have internal predecessors, (378), 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 232 [2022-11-18 18:47:12,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:47:12,213 INFO L225 Difference]: With dead ends: 246 [2022-11-18 18:47:12,213 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 18:47:12,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 686 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 275 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19447 ImplicationChecksByTransitivity, 43.8s TimeCoverageRelationStatistics Valid=16157, Invalid=60295, Unknown=0, NotChecked=0, Total=76452 [2022-11-18 18:47:12,222 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3717 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 944 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3717 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 944 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-18 18:47:12,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3717 Valid, 37 Invalid, 2158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [944 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-18 18:47:12,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 18:47:12,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 18:47:12,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:47:12,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 18:47:12,223 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 232 [2022-11-18 18:47:12,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:47:12,224 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 18:47:12,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 103 states have (on average 3.6699029126213594) internal successors, (378), 104 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:47:12,225 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 18:47:12,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 18:47:12,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-18 18:47:12,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-18 18:47:12,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-18 18:47:12,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-18 18:47:12,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-18 18:47:12,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-18 18:47:12,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 18:47:12,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 18:47:12,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 18:47:13,992 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-18 18:47:13,992 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 18:47:13,992 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-18 18:47:13,992 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-11-18 18:47:13,992 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2022-11-18 18:47:13,992 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2022-11-18 18:47:13,992 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-11-18 18:47:13,992 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2022-11-18 18:47:13,992 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 18:47:13,992 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-18 18:47:13,993 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-18 18:47:13,993 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 18:47:13,993 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-11-18 18:47:13,993 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 18:47:13,993 INFO L902 garLoopResultBuilder]: At program point L28(lines 16 29) the Hoare annotation is: true [2022-11-18 18:47:13,993 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2022-11-18 18:47:13,994 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2022-11-18 18:47:13,994 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 27) the Hoare annotation is: (let ((.cse8 (+ |ULTIMATE.start_main_~d2~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse2 (<= 73 |ULTIMATE.start_main_~d1old~0#1|)) (.cse3 (<= 75 |ULTIMATE.start_main_~d1~0#1|)) (.cse0 (<= |ULTIMATE.start_main_~d2~0#1| 74)) (.cse6 (<= 1 .cse8)) (.cse1 (<= 74 |ULTIMATE.start_main_~d2~0#1|)) (.cse7 (<= .cse8 2147483648))) (or (and (<= |ULTIMATE.start_main_~d1~0#1| 73) (<= 73 |ULTIMATE.start_main_~d1~0#1|) (<= |ULTIMATE.start_main_~x~0#1| (+ 2147483574 |ULTIMATE.start_main_~d1~0#1|)) .cse0 .cse1) (let ((.cse5 (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|)) (.cse4 (* 3 |ULTIMATE.start_main_~x~0#1|))) (and .cse2 (<= (+ (* 2 |ULTIMATE.start_main_~x~0#1|) (* |ULTIMATE.start_main_~d2~0#1| 3)) 6442450938) .cse3 (<= |ULTIMATE.start_main_~d1~0#1| 2147483645) (<= |ULTIMATE.start_main_~d1old~0#1| 2147483645) (<= (+ (* |ULTIMATE.start_main_~d1old~0#1| 4) .cse4) 8589934572) (<= .cse5 2147483647) (<= 0 .cse5) (<= |ULTIMATE.start_main_~x~0#1| 2147483499) .cse6 (<= (+ (* |ULTIMATE.start_main_~d2~0#1| 4) .cse4) 8589934576) .cse1 .cse7)) (and .cse2 .cse3 (<= |ULTIMATE.start_main_~d1old~0#1| 73) (<= |ULTIMATE.start_main_~d1~0#1| 75) .cse0 .cse6 .cse1 .cse7)))) [2022-11-18 18:47:13,995 INFO L899 garLoopResultBuilder]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2022-11-18 18:47:13,999 INFO L444 BasicCegarLoop]: Path program histogram: [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:47:14,001 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:47:14,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:47:14 BoogieIcfgContainer [2022-11-18 18:47:14,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:47:14,021 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:47:14,022 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:47:14,022 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:47:14,022 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:45:39" (3/4) ... [2022-11-18 18:47:14,026 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 18:47:14,037 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 18:47:14,038 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 18:47:14,038 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 18:47:14,078 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((d1 <= 73 && 73 <= d1) && x <= 2147483574 + d1) && d2 <= 74) && 74 <= d2) || ((((((((((((73 <= d1\old && 2 * x + d2 * 3 <= 6442450938) && 75 <= d1) && d1 <= 2147483645) && d1\old <= 2147483645) && d1\old * 4 + 3 * x <= 8589934572) && x + d1\old <= 2147483647) && 0 <= x + d1\old) && x <= 2147483499) && 1 <= d2 + x) && d2 * 4 + 3 * x <= 8589934576) && 74 <= d2) && d2 + x <= 2147483648)) || (((((((73 <= d1\old && 75 <= d1) && d1\old <= 73) && d1 <= 75) && d2 <= 74) && 1 <= d2 + x) && 74 <= d2) && d2 + x <= 2147483648) [2022-11-18 18:47:14,086 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 18:47:14,086 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:47:14,087 INFO L158 Benchmark]: Toolchain (without parser) took 94928.84ms. Allocated memory was 127.9MB in the beginning and 390.1MB in the end (delta: 262.1MB). Free memory was 90.6MB in the beginning and 329.5MB in the end (delta: -238.9MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2022-11-18 18:47:14,087 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 127.9MB. Free memory was 106.7MB in the beginning and 106.6MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:47:14,087 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.53ms. Allocated memory is still 127.9MB. Free memory was 90.4MB in the beginning and 103.4MB in the end (delta: -13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 18:47:14,088 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.01ms. Allocated memory is still 127.9MB. Free memory was 103.4MB in the beginning and 102.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:47:14,088 INFO L158 Benchmark]: Boogie Preprocessor took 19.32ms. Allocated memory is still 127.9MB. Free memory was 102.0MB in the beginning and 101.4MB in the end (delta: 570.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:47:14,088 INFO L158 Benchmark]: RCFGBuilder took 272.92ms. Allocated memory is still 127.9MB. Free memory was 101.4MB in the beginning and 92.0MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 18:47:14,088 INFO L158 Benchmark]: TraceAbstraction took 94271.96ms. Allocated memory was 127.9MB in the beginning and 390.1MB in the end (delta: 262.1MB). Free memory was 91.5MB in the beginning and 332.7MB in the end (delta: -241.2MB). Peak memory consumption was 238.6MB. Max. memory is 16.1GB. [2022-11-18 18:47:14,089 INFO L158 Benchmark]: Witness Printer took 65.22ms. Allocated memory is still 390.1MB. Free memory was 332.7MB in the beginning and 329.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:47:14,091 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 127.9MB. Free memory was 106.7MB in the beginning and 106.6MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.53ms. Allocated memory is still 127.9MB. Free memory was 90.4MB in the beginning and 103.4MB in the end (delta: -13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.01ms. Allocated memory is still 127.9MB. Free memory was 103.4MB in the beginning and 102.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.32ms. Allocated memory is still 127.9MB. Free memory was 102.0MB in the beginning and 101.4MB in the end (delta: 570.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 272.92ms. Allocated memory is still 127.9MB. Free memory was 101.4MB in the beginning and 92.0MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 94271.96ms. Allocated memory was 127.9MB in the beginning and 390.1MB in the end (delta: 262.1MB). Free memory was 91.5MB in the beginning and 332.7MB in the end (delta: -241.2MB). Peak memory consumption was 238.6MB. Max. memory is 16.1GB. * Witness Printer took 65.22ms. Allocated memory is still 390.1MB. Free memory was 332.7MB in the beginning and 329.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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, 19 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 94.2s, OverallIterations: 17, TraceHistogramMax: 33, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 71.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7283 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7283 mSDsluCounter, 522 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 379 mSDsCounter, 1639 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2853 IncrementalHoareTripleChecker+Invalid, 4492 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1639 mSolverCounterUnsat, 143 mSDtfsCounter, 2853 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2063 GetRequests, 1283 SyntacticMatches, 1 SemanticMatches, 779 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39397 ImplicationChecksByTransitivity, 75.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=15, InterpolantAutomatonStates: 511, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 17 MinimizatonAttempts, 53 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 38 NumberOfFragments, 115 HoareAnnotationTreeSize, 2 FomulaSimplifications, 916 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 2 FomulaSimplificationsInter, 5755 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 17.1s InterpolantComputationTime, 1497 NumberOfCodeBlocks, 1182 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 2182 ConstructedInterpolants, 0 QuantifiedInterpolants, 6918 SizeOfPredicates, 96 NumberOfNonLiveVariables, 905 ConjunctsInSsa, 131 ConjunctsInUnsatCore, 37 InterpolantComputations, 7 PerfectInterpolantSequences, 13254/24332 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((((d1 <= 73 && 73 <= d1) && x <= 2147483574 + d1) && d2 <= 74) && 74 <= d2) || ((((((((((((73 <= d1\old && 2 * x + d2 * 3 <= 6442450938) && 75 <= d1) && d1 <= 2147483645) && d1\old <= 2147483645) && d1\old * 4 + 3 * x <= 8589934572) && x + d1\old <= 2147483647) && 0 <= x + d1\old) && x <= 2147483499) && 1 <= d2 + x) && d2 * 4 + 3 * x <= 8589934576) && 74 <= d2) && d2 + x <= 2147483648)) || (((((((73 <= d1\old && 75 <= d1) && d1\old <= 73) && d1 <= 75) && d2 <= 74) && 1 <= d2 + x) && 74 <= d2) && d2 + x <= 2147483648) RESULT: Ultimate proved your program to be correct! [2022-11-18 18:47:14,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02d2737-2623-45c7-9ea1-6865b404fea4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE