./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/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_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/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 32bit --witnessprinter.graph.data.programhash 5a6f0ceb44f91fbf2c30fb7a6cf4ec4645c0e639d55219bc8a5d1521d1ed7589 --- 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 19:51:06,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:51:06,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:51:06,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:51:06,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:51:06,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:51:06,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:51:06,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:51:06,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:51:06,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:51:06,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:51:06,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:51:06,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:51:06,350 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:51:06,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:51:06,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:51:06,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:51:06,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:51:06,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:51:06,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:51:06,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:51:06,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:51:06,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:51:06,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:51:06,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:51:06,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:51:06,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:51:06,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:51:06,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:51:06,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:51:06,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:51:06,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:51:06,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:51:06,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:51:06,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:51:06,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:51:06,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:51:06,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:51:06,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:51:06,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:51:06,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:51:06,395 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 19:51:06,418 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:51:06,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:51:06,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:51:06,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:51:06,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:51:06,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:51:06,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:51:06,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:51:06,421 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:51:06,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:51:06,422 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:51:06,422 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:51:06,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:51:06,423 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:51:06,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:51:06,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:51:06,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:51:06,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:51:06,424 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 19:51:06,424 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:51:06,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:51:06,425 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:51:06,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:51:06,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:51:06,426 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:51:06,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:51:06,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:51:06,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:51:06,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:51:06,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:51:06,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:51:06,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:51:06,428 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:51:06,428 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:51:06,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:51:06,429 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_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a6f0ceb44f91fbf2c30fb7a6cf4ec4645c0e639d55219bc8a5d1521d1ed7589 [2022-11-18 19:51:06,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:51:06,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:51:06,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:51:06,748 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:51:06,749 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:51:06,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c [2022-11-18 19:51:06,845 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/data/c8c620938/a6a3a1c666aa424e8cf16deadf5ab400/FLAG0cb48e3ba [2022-11-18 19:51:07,315 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:51:07,315 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c [2022-11-18 19:51:07,320 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/data/c8c620938/a6a3a1c666aa424e8cf16deadf5ab400/FLAG0cb48e3ba [2022-11-18 19:51:07,686 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/data/c8c620938/a6a3a1c666aa424e8cf16deadf5ab400 [2022-11-18 19:51:07,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:51:07,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:51:07,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:51:07,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:51:07,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:51:07,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:51:07" (1/1) ... [2022-11-18 19:51:07,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69a51a51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:07, skipping insertion in model container [2022-11-18 19:51:07,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:51:07" (1/1) ... [2022-11-18 19:51:07,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:51:07,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:51:07,940 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c[548,561] [2022-11-18 19:51:07,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:51:07,967 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:51:08,000 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c[548,561] [2022-11-18 19:51:08,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:51:08,020 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:51:08,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:08 WrapperNode [2022-11-18 19:51:08,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:51:08,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:51:08,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:51:08,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:51:08,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:08" (1/1) ... [2022-11-18 19:51:08,038 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:08" (1/1) ... [2022-11-18 19:51:08,056 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-11-18 19:51:08,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:51:08,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:51:08,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:51:08,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:51:08,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:08" (1/1) ... [2022-11-18 19:51:08,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:08" (1/1) ... [2022-11-18 19:51:08,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:08" (1/1) ... [2022-11-18 19:51:08,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:08" (1/1) ... [2022-11-18 19:51:08,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:08" (1/1) ... [2022-11-18 19:51:08,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:08" (1/1) ... [2022-11-18 19:51:08,089 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:08" (1/1) ... [2022-11-18 19:51:08,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:08" (1/1) ... [2022-11-18 19:51:08,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:51:08,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:51:08,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:51:08,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:51:08,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:08" (1/1) ... [2022-11-18 19:51:08,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:51:08,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:51:08,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:51:08,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:51:08,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:51:08,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:51:08,170 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2022-11-18 19:51:08,170 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2022-11-18 19:51:08,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:51:08,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:51:08,171 INFO L130 BoogieDeclarations]: Found specification of procedure id [2022-11-18 19:51:08,171 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2022-11-18 19:51:08,228 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:51:08,230 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:51:08,367 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:51:08,374 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:51:08,374 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:51:08,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:51:08 BoogieIcfgContainer [2022-11-18 19:51:08,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:51:08,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:51:08,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:51:08,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:51:08,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:51:07" (1/3) ... [2022-11-18 19:51:08,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7363551e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:51:08, skipping insertion in model container [2022-11-18 19:51:08,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:51:08" (2/3) ... [2022-11-18 19:51:08,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7363551e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:51:08, skipping insertion in model container [2022-11-18 19:51:08,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:51:08" (3/3) ... [2022-11-18 19:51:08,386 INFO L112 eAbstractionObserver]: Analyzing ICFG id2_i5_o5-1.c [2022-11-18 19:51:08,401 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:51:08,401 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-18 19:51:08,461 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:51:08,469 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;@5243c7c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:51:08,470 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-18 19:51:08,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 31 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 19:51:08,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 19:51:08,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:08,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 19:51:08,499 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:51:08,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:08,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1363684146, now seen corresponding path program 1 times [2022-11-18 19:51:08,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:08,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316409490] [2022-11-18 19:51:08,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:08,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:08,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:08,766 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 19:51:08,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:08,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316409490] [2022-11-18 19:51:08,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316409490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:51:08,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:51:08,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:51:08,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581179727] [2022-11-18 19:51:08,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:51:08,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:51:08,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:08,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:51:08,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:51:08,857 INFO L87 Difference]: Start difference. First operand has 37 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 31 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:08,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:08,989 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2022-11-18 19:51:08,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:51:08,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 19:51:08,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:09,002 INFO L225 Difference]: With dead ends: 56 [2022-11-18 19:51:09,003 INFO L226 Difference]: Without dead ends: 44 [2022-11-18 19:51:09,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:51:09,010 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 28 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:09,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 121 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:51:09,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-18 19:51:09,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2022-11-18 19:51:09,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.48) internal successors, (37), 32 states have internal predecessors, (37), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 19:51:09,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2022-11-18 19:51:09,059 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 6 [2022-11-18 19:51:09,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:09,060 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2022-11-18 19:51:09,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:09,060 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2022-11-18 19:51:09,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 19:51:09,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:09,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:51:09,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:51:09,062 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:51:09,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:09,063 INFO L85 PathProgramCache]: Analyzing trace with hash -675464365, now seen corresponding path program 1 times [2022-11-18 19:51:09,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:09,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966678393] [2022-11-18 19:51:09,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:09,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:09,129 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 19:51:09,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:09,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966678393] [2022-11-18 19:51:09,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966678393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:51:09,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:51:09,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:51:09,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390284126] [2022-11-18 19:51:09,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:51:09,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:51:09,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:09,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:51:09,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:51:09,134 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:09,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:09,206 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2022-11-18 19:51:09,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:51:09,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 19:51:09,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:09,208 INFO L225 Difference]: With dead ends: 42 [2022-11-18 19:51:09,208 INFO L226 Difference]: Without dead ends: 41 [2022-11-18 19:51:09,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:51:09,211 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 13 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:09,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 110 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:51:09,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-18 19:51:09,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2022-11-18 19:51:09,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.44) internal successors, (36), 32 states have internal predecessors, (36), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 19:51:09,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2022-11-18 19:51:09,226 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 7 [2022-11-18 19:51:09,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:09,227 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2022-11-18 19:51:09,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:09,227 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2022-11-18 19:51:09,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 19:51:09,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:09,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:51:09,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:51:09,229 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:51:09,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:09,230 INFO L85 PathProgramCache]: Analyzing trace with hash -178347838, now seen corresponding path program 1 times [2022-11-18 19:51:09,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:09,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406845582] [2022-11-18 19:51:09,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:09,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:09,410 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 19:51:09,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:09,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406845582] [2022-11-18 19:51:09,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406845582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:51:09,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:51:09,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:51:09,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205123360] [2022-11-18 19:51:09,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:51:09,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:51:09,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:09,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:51:09,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:51:09,414 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:09,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:09,545 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2022-11-18 19:51:09,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:51:09,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 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 19:51:09,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:09,547 INFO L225 Difference]: With dead ends: 39 [2022-11-18 19:51:09,547 INFO L226 Difference]: Without dead ends: 37 [2022-11-18 19:51:09,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:51:09,549 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 42 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:09,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 62 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:51:09,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-18 19:51:09,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-18 19:51:09,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.36) internal successors, (34), 30 states have internal predecessors, (34), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 19:51:09,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2022-11-18 19:51:09,564 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 11 [2022-11-18 19:51:09,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:09,564 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-11-18 19:51:09,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:09,565 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2022-11-18 19:51:09,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 19:51:09,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:09,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:51:09,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:51:09,572 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:51:09,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:09,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1233815644, now seen corresponding path program 1 times [2022-11-18 19:51:09,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:09,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714630164] [2022-11-18 19:51:09,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:09,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:09,685 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 19:51:09,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:09,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714630164] [2022-11-18 19:51:09,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714630164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:51:09,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:51:09,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:51:09,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144883171] [2022-11-18 19:51:09,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:51:09,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:51:09,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:09,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:51:09,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:51:09,724 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:09,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:09,886 INFO L93 Difference]: Finished difference Result 59 states and 61 transitions. [2022-11-18 19:51:09,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:51:09,887 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 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 19:51:09,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:09,890 INFO L225 Difference]: With dead ends: 59 [2022-11-18 19:51:09,891 INFO L226 Difference]: Without dead ends: 51 [2022-11-18 19:51:09,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:51:09,894 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 29 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:09,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 128 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:51:09,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-18 19:51:09,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2022-11-18 19:51:09,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 38 states have internal predecessors, (44), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 19:51:09,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2022-11-18 19:51:09,907 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 12 [2022-11-18 19:51:09,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:09,908 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2022-11-18 19:51:09,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:09,909 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2022-11-18 19:51:09,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:51:09,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:09,910 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:51:09,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:51:09,911 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:51:09,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:09,912 INFO L85 PathProgramCache]: Analyzing trace with hash 932280239, now seen corresponding path program 1 times [2022-11-18 19:51:09,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:09,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435668969] [2022-11-18 19:51:09,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:09,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:10,077 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 19:51:10,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:10,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435668969] [2022-11-18 19:51:10,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435668969] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:51:10,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380115418] [2022-11-18 19:51:10,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:10,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:51:10,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:51:10,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:51:10,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:51:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:10,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:51:10,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:51:10,309 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 19:51:10,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:51:10,502 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 19:51:10,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380115418] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:51:10,505 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:51:10,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-11-18 19:51:10,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532656127] [2022-11-18 19:51:10,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:51:10,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-18 19:51:10,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:10,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-18 19:51:10,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:51:10,515 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand has 16 states, 13 states have (on average 2.076923076923077) internal successors, (27), 10 states have internal predecessors, (27), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:10,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:10,778 INFO L93 Difference]: Finished difference Result 109 states and 115 transitions. [2022-11-18 19:51:10,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 19:51:10,779 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 2.076923076923077) internal successors, (27), 10 states have internal predecessors, (27), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-18 19:51:10,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:10,794 INFO L225 Difference]: With dead ends: 109 [2022-11-18 19:51:10,794 INFO L226 Difference]: Without dead ends: 93 [2022-11-18 19:51:10,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2022-11-18 19:51:10,803 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 118 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:10,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 217 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:51:10,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-18 19:51:10,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 77. [2022-11-18 19:51:10,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 62 states have internal predecessors, (76), 8 states have call successors, (8), 7 states have call predecessors, (8), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-18 19:51:10,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 91 transitions. [2022-11-18 19:51:10,822 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 91 transitions. Word has length 17 [2022-11-18 19:51:10,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:10,823 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 91 transitions. [2022-11-18 19:51:10,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 2.076923076923077) internal successors, (27), 10 states have internal predecessors, (27), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:10,823 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2022-11-18 19:51:10,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 19:51:10,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:10,825 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:51:10,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:51:11,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:51:11,031 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:51:11,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:11,032 INFO L85 PathProgramCache]: Analyzing trace with hash -200724308, now seen corresponding path program 1 times [2022-11-18 19:51:11,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:11,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206947435] [2022-11-18 19:51:11,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:11,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:11,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-18 19:51:11,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:11,155 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 19:51:11,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:11,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206947435] [2022-11-18 19:51:11,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206947435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:51:11,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:51:11,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:51:11,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886788545] [2022-11-18 19:51:11,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:51:11,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:51:11,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:11,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:51:11,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:51:11,158 INFO L87 Difference]: Start difference. First operand 77 states and 91 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:51:11,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:11,200 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2022-11-18 19:51:11,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:51:11,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-11-18 19:51:11,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:11,205 INFO L225 Difference]: With dead ends: 92 [2022-11-18 19:51:11,205 INFO L226 Difference]: Without dead ends: 90 [2022-11-18 19:51:11,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:51:11,206 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 79 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 19:51:11,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 79 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:51:11,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-18 19:51:11,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-11-18 19:51:11,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 68 states have (on average 1.2794117647058822) internal successors, (87), 72 states have internal predecessors, (87), 8 states have call successors, (8), 7 states have call predecessors, (8), 8 states have return successors, (10), 10 states have call predecessors, (10), 7 states have call successors, (10) [2022-11-18 19:51:11,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 105 transitions. [2022-11-18 19:51:11,227 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 105 transitions. Word has length 24 [2022-11-18 19:51:11,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:11,227 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 105 transitions. [2022-11-18 19:51:11,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:51:11,227 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 105 transitions. [2022-11-18 19:51:11,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 19:51:11,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:11,228 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:51:11,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:51:11,229 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:51:11,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:11,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1199112428, now seen corresponding path program 1 times [2022-11-18 19:51:11,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:11,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438527909] [2022-11-18 19:51:11,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:11,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:11,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:51:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:11,387 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 19:51:11,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:11,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438527909] [2022-11-18 19:51:11,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438527909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:51:11,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:51:11,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:51:11,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724942779] [2022-11-18 19:51:11,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:51:11,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:51:11,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:11,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:51:11,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:51:11,390 INFO L87 Difference]: Start difference. First operand 90 states and 105 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:51:11,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:11,410 INFO L93 Difference]: Finished difference Result 102 states and 119 transitions. [2022-11-18 19:51:11,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:51:11,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-11-18 19:51:11,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:11,412 INFO L225 Difference]: With dead ends: 102 [2022-11-18 19:51:11,412 INFO L226 Difference]: Without dead ends: 100 [2022-11-18 19:51:11,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:51:11,414 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 1 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:11,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 89 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:51:11,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-18 19:51:11,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2022-11-18 19:51:11,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 76 states have (on average 1.25) internal successors, (95), 80 states have internal predecessors, (95), 8 states have call successors, (8), 7 states have call predecessors, (8), 10 states have return successors, (12), 12 states have call predecessors, (12), 7 states have call successors, (12) [2022-11-18 19:51:11,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2022-11-18 19:51:11,429 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 29 [2022-11-18 19:51:11,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:11,429 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2022-11-18 19:51:11,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:51:11,429 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2022-11-18 19:51:11,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 19:51:11,430 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:11,430 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:51:11,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:51:11,431 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:51:11,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:11,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1006302115, now seen corresponding path program 1 times [2022-11-18 19:51:11,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:11,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073854554] [2022-11-18 19:51:11,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:11,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:11,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 19:51:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:11,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:51:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:11,632 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 19:51:11,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:11,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073854554] [2022-11-18 19:51:11,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073854554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:51:11,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:51:11,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:51:11,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675753567] [2022-11-18 19:51:11,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:51:11,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:51:11,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:11,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:51:11,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:51:11,639 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 19:51:11,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:11,690 INFO L93 Difference]: Finished difference Result 116 states and 136 transitions. [2022-11-18 19:51:11,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:51:11,690 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2022-11-18 19:51:11,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:11,691 INFO L225 Difference]: With dead ends: 116 [2022-11-18 19:51:11,691 INFO L226 Difference]: Without dead ends: 115 [2022-11-18 19:51:11,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:51:11,693 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 2 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:11,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 113 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:51:11,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-11-18 19:51:11,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 112. [2022-11-18 19:51:11,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 85 states have (on average 1.223529411764706) internal successors, (104), 89 states have internal predecessors, (104), 8 states have call successors, (8), 7 states have call predecessors, (8), 13 states have return successors, (15), 15 states have call predecessors, (15), 7 states have call successors, (15) [2022-11-18 19:51:11,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 127 transitions. [2022-11-18 19:51:11,717 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 127 transitions. Word has length 29 [2022-11-18 19:51:11,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:11,717 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 127 transitions. [2022-11-18 19:51:11,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 19:51:11,717 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 127 transitions. [2022-11-18 19:51:11,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-18 19:51:11,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:11,724 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:51:11,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:51:11,725 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:51:11,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:11,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1130594537, now seen corresponding path program 1 times [2022-11-18 19:51:11,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:11,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487218841] [2022-11-18 19:51:11,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:11,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:11,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:11,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 19:51:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:11,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:51:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:11,784 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 19:51:11,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:11,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487218841] [2022-11-18 19:51:11,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487218841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:51:11,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:51:11,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:51:11,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656319579] [2022-11-18 19:51:11,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:51:11,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:51:11,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:11,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:51:11,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:51:11,787 INFO L87 Difference]: Start difference. First operand 112 states and 127 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 19:51:11,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:11,801 INFO L93 Difference]: Finished difference Result 112 states and 127 transitions. [2022-11-18 19:51:11,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:51:11,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2022-11-18 19:51:11,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:11,803 INFO L225 Difference]: With dead ends: 112 [2022-11-18 19:51:11,803 INFO L226 Difference]: Without dead ends: 111 [2022-11-18 19:51:11,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 19:51:11,807 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 1 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:11,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 53 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:51:11,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-11-18 19:51:11,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 101. [2022-11-18 19:51:11,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 77 states have (on average 1.2077922077922079) internal successors, (93), 80 states have internal predecessors, (93), 8 states have call successors, (8), 7 states have call predecessors, (8), 11 states have return successors, (13), 13 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-18 19:51:11,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 114 transitions. [2022-11-18 19:51:11,837 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 114 transitions. Word has length 30 [2022-11-18 19:51:11,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:11,837 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 114 transitions. [2022-11-18 19:51:11,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 19:51:11,838 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 114 transitions. [2022-11-18 19:51:11,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 19:51:11,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:11,839 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2022-11-18 19:51:11,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:51:11,839 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:51:11,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:11,840 INFO L85 PathProgramCache]: Analyzing trace with hash -654535444, now seen corresponding path program 1 times [2022-11-18 19:51:11,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:11,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319294401] [2022-11-18 19:51:11,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:11,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:12,136 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:51:12,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:12,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319294401] [2022-11-18 19:51:12,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319294401] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:51:12,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160130533] [2022-11-18 19:51:12,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:12,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:51:12,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:51:12,139 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:51:12,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:51:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:12,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-18 19:51:12,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:51:12,314 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:51:12,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:51:12,643 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:51:12,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160130533] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:51:12,644 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:51:12,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2022-11-18 19:51:12,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762312754] [2022-11-18 19:51:12,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:51:12,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-18 19:51:12,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:12,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-18 19:51:12,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756 [2022-11-18 19:51:12,650 INFO L87 Difference]: Start difference. First operand 101 states and 114 transitions. Second operand has 28 states, 25 states have (on average 2.04) internal successors, (51), 16 states have internal predecessors, (51), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:13,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:13,318 INFO L93 Difference]: Finished difference Result 251 states and 270 transitions. [2022-11-18 19:51:13,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-18 19:51:13,319 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 2.04) internal successors, (51), 16 states have internal predecessors, (51), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-18 19:51:13,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:13,320 INFO L225 Difference]: With dead ends: 251 [2022-11-18 19:51:13,320 INFO L226 Difference]: Without dead ends: 217 [2022-11-18 19:51:13,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=319, Invalid=1661, Unknown=0, NotChecked=0, Total=1980 [2022-11-18 19:51:13,332 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 296 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:13,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 447 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:51:13,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-11-18 19:51:13,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 193. [2022-11-18 19:51:13,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 150 states have (on average 1.2066666666666668) internal successors, (181), 153 states have internal predecessors, (181), 15 states have call successors, (15), 14 states have call predecessors, (15), 23 states have return successors, (25), 25 states have call predecessors, (25), 14 states have call successors, (25) [2022-11-18 19:51:13,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 221 transitions. [2022-11-18 19:51:13,360 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 221 transitions. Word has length 32 [2022-11-18 19:51:13,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:13,362 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 221 transitions. [2022-11-18 19:51:13,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 2.04) internal successors, (51), 16 states have internal predecessors, (51), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:13,363 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 221 transitions. [2022-11-18 19:51:13,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-18 19:51:13,368 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:13,368 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:51:13,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:51:13,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:51:13,574 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:51:13,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:13,574 INFO L85 PathProgramCache]: Analyzing trace with hash -169519029, now seen corresponding path program 1 times [2022-11-18 19:51:13,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:13,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109667216] [2022-11-18 19:51:13,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:13,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:13,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-18 19:51:13,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:13,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:51:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:13,730 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-18 19:51:13,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:13,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109667216] [2022-11-18 19:51:13,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109667216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:51:13,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:51:13,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:51:13,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744398129] [2022-11-18 19:51:13,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:51:13,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:51:13,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:13,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:51:13,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:51:13,733 INFO L87 Difference]: Start difference. First operand 193 states and 221 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 19:51:13,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:13,768 INFO L93 Difference]: Finished difference Result 242 states and 280 transitions. [2022-11-18 19:51:13,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:51:13,769 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2022-11-18 19:51:13,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:13,771 INFO L225 Difference]: With dead ends: 242 [2022-11-18 19:51:13,771 INFO L226 Difference]: Without dead ends: 241 [2022-11-18 19:51:13,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:51:13,772 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 1 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:13,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 132 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:51:13,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-11-18 19:51:13,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 236. [2022-11-18 19:51:13,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 184 states have (on average 1.1684782608695652) internal successors, (215), 186 states have internal predecessors, (215), 15 states have call successors, (15), 14 states have call predecessors, (15), 32 states have return successors, (35), 35 states have call predecessors, (35), 14 states have call successors, (35) [2022-11-18 19:51:13,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 265 transitions. [2022-11-18 19:51:13,784 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 265 transitions. Word has length 44 [2022-11-18 19:51:13,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:13,785 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 265 transitions. [2022-11-18 19:51:13,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 19:51:13,785 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 265 transitions. [2022-11-18 19:51:13,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-18 19:51:13,791 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:13,791 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:51:13,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 19:51:13,791 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:51:13,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:13,792 INFO L85 PathProgramCache]: Analyzing trace with hash -686718988, now seen corresponding path program 1 times [2022-11-18 19:51:13,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:13,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526187669] [2022-11-18 19:51:13,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:13,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:13,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-18 19:51:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:13,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:51:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:14,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:51:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:14,025 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 19:51:14,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:14,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526187669] [2022-11-18 19:51:14,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526187669] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:51:14,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785782121] [2022-11-18 19:51:14,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:14,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:51:14,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:51:14,028 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:51:14,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:51:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:14,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 19:51:14,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:51:14,130 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 19:51:14,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:51:14,423 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 19:51:14,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785782121] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:51:14,424 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:51:14,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-11-18 19:51:14,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992749820] [2022-11-18 19:51:14,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:51:14,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-18 19:51:14,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:14,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-18 19:51:14,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:51:14,427 INFO L87 Difference]: Start difference. First operand 236 states and 265 transitions. Second operand has 16 states, 15 states have (on average 2.6) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-18 19:51:14,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:14,518 INFO L93 Difference]: Finished difference Result 335 states and 389 transitions. [2022-11-18 19:51:14,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:51:14,519 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.6) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) Word has length 44 [2022-11-18 19:51:14,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:14,522 INFO L225 Difference]: With dead ends: 335 [2022-11-18 19:51:14,523 INFO L226 Difference]: Without dead ends: 333 [2022-11-18 19:51:14,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:51:14,526 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 6 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:14,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 215 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:51:14,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-11-18 19:51:14,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 290. [2022-11-18 19:51:14,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 228 states have (on average 1.162280701754386) internal successors, (265), 230 states have internal predecessors, (265), 15 states have call successors, (15), 14 states have call predecessors, (15), 42 states have return successors, (45), 45 states have call predecessors, (45), 14 states have call successors, (45) [2022-11-18 19:51:14,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 325 transitions. [2022-11-18 19:51:14,552 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 325 transitions. Word has length 44 [2022-11-18 19:51:14,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:14,555 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 325 transitions. [2022-11-18 19:51:14,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.6) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-18 19:51:14,556 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 325 transitions. [2022-11-18 19:51:14,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-18 19:51:14,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:14,560 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:51:14,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:51:14,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 19:51:14,766 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:51:14,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:14,767 INFO L85 PathProgramCache]: Analyzing trace with hash -960122528, now seen corresponding path program 1 times [2022-11-18 19:51:14,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:14,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873597339] [2022-11-18 19:51:14,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:14,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:14,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-18 19:51:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:14,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:51:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:14,832 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-18 19:51:14,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:14,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873597339] [2022-11-18 19:51:14,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873597339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:51:14,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:51:14,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:51:14,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882647460] [2022-11-18 19:51:14,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:51:14,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:51:14,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:14,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:51:14,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:51:14,839 INFO L87 Difference]: Start difference. First operand 290 states and 325 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 19:51:14,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:14,854 INFO L93 Difference]: Finished difference Result 290 states and 325 transitions. [2022-11-18 19:51:14,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:51:14,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2022-11-18 19:51:14,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:14,857 INFO L225 Difference]: With dead ends: 290 [2022-11-18 19:51:14,857 INFO L226 Difference]: Without dead ends: 264 [2022-11-18 19:51:14,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 19:51:14,859 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:14,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 51 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:51:14,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-11-18 19:51:14,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2022-11-18 19:51:14,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 208 states have (on average 1.1105769230769231) internal successors, (231), 209 states have internal predecessors, (231), 15 states have call successors, (15), 14 states have call predecessors, (15), 37 states have return successors, (40), 40 states have call predecessors, (40), 14 states have call successors, (40) [2022-11-18 19:51:14,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 286 transitions. [2022-11-18 19:51:14,874 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 286 transitions. Word has length 45 [2022-11-18 19:51:14,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:14,875 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 286 transitions. [2022-11-18 19:51:14,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 19:51:14,876 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 286 transitions. [2022-11-18 19:51:14,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-18 19:51:14,877 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:14,877 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-18 19:51:14,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 19:51:14,878 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:51:14,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:14,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1262939008, now seen corresponding path program 1 times [2022-11-18 19:51:14,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:14,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047265142] [2022-11-18 19:51:14,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:14,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:15,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 19:51:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:15,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:51:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:15,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:51:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:15,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:51:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:15,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:51:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:15,324 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 14 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-18 19:51:15,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:15,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047265142] [2022-11-18 19:51:15,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047265142] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:51:15,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101015878] [2022-11-18 19:51:15,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:15,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:51:15,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:51:15,327 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:51:15,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 19:51:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:15,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 19:51:15,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:51:15,543 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 18 proven. 22 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 19:51:15,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:51:16,594 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 18 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 19:51:16,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101015878] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:51:16,594 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:51:16,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 17] total 23 [2022-11-18 19:51:16,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496611307] [2022-11-18 19:51:16,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:51:16,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 19:51:16,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:16,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 19:51:16,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2022-11-18 19:51:16,597 INFO L87 Difference]: Start difference. First operand 264 states and 286 transitions. Second operand has 23 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 21 states have internal predecessors, (67), 11 states have call successors, (11), 3 states have call predecessors, (11), 6 states have return successors, (13), 5 states have call predecessors, (13), 9 states have call successors, (13) [2022-11-18 19:51:16,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:16,852 INFO L93 Difference]: Finished difference Result 451 states and 488 transitions. [2022-11-18 19:51:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 19:51:16,853 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 21 states have internal predecessors, (67), 11 states have call successors, (11), 3 states have call predecessors, (11), 6 states have return successors, (13), 5 states have call predecessors, (13), 9 states have call successors, (13) Word has length 59 [2022-11-18 19:51:16,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:16,855 INFO L225 Difference]: With dead ends: 451 [2022-11-18 19:51:16,855 INFO L226 Difference]: Without dead ends: 264 [2022-11-18 19:51:16,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 107 SyntacticMatches, 10 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=155, Invalid=715, Unknown=0, NotChecked=0, Total=870 [2022-11-18 19:51:16,856 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 105 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:16,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 209 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:51:16,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-11-18 19:51:16,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2022-11-18 19:51:16,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 208 states have (on average 1.0913461538461537) internal successors, (227), 209 states have internal predecessors, (227), 15 states have call successors, (15), 14 states have call predecessors, (15), 37 states have return successors, (40), 40 states have call predecessors, (40), 14 states have call successors, (40) [2022-11-18 19:51:16,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 282 transitions. [2022-11-18 19:51:16,869 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 282 transitions. Word has length 59 [2022-11-18 19:51:16,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:16,869 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 282 transitions. [2022-11-18 19:51:16,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 21 states have internal predecessors, (67), 11 states have call successors, (11), 3 states have call predecessors, (11), 6 states have return successors, (13), 5 states have call predecessors, (13), 9 states have call successors, (13) [2022-11-18 19:51:16,870 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 282 transitions. [2022-11-18 19:51:16,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-18 19:51:16,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:16,871 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1] [2022-11-18 19:51:16,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:51:17,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:51:17,076 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:51:17,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:17,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1015007109, now seen corresponding path program 2 times [2022-11-18 19:51:17,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:17,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553000921] [2022-11-18 19:51:17,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:17,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:17,613 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:51:17,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:17,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553000921] [2022-11-18 19:51:17,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553000921] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:51:17,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105226031] [2022-11-18 19:51:17,614 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:51:17,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:51:17,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:51:17,619 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:51:17,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 19:51:17,683 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:51:17,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:51:17,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-18 19:51:17,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:51:17,825 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:51:17,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:51:18,614 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:51:18,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105226031] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:51:18,615 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:51:18,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 55 [2022-11-18 19:51:18,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475169651] [2022-11-18 19:51:18,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:51:18,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-11-18 19:51:18,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:18,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-11-18 19:51:18,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=424, Invalid=2656, Unknown=0, NotChecked=0, Total=3080 [2022-11-18 19:51:18,618 INFO L87 Difference]: Start difference. First operand 264 states and 282 transitions. Second operand has 56 states, 53 states have (on average 2.018867924528302) internal successors, (107), 30 states have internal predecessors, (107), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:20,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:20,012 INFO L93 Difference]: Finished difference Result 577 states and 601 transitions. [2022-11-18 19:51:20,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-11-18 19:51:20,013 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 53 states have (on average 2.018867924528302) internal successors, (107), 30 states have internal predecessors, (107), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-18 19:51:20,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:20,016 INFO L225 Difference]: With dead ends: 577 [2022-11-18 19:51:20,016 INFO L226 Difference]: Without dead ends: 575 [2022-11-18 19:51:20,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2143 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1231, Invalid=6779, Unknown=0, NotChecked=0, Total=8010 [2022-11-18 19:51:20,024 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 945 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:20,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [947 Valid, 515 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 19:51:20,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-11-18 19:51:20,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 550. [2022-11-18 19:51:20,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 436 states have (on average 1.0871559633027523) internal successors, (474), 436 states have internal predecessors, (474), 28 states have call successors, (28), 27 states have call predecessors, (28), 82 states have return successors, (86), 86 states have call predecessors, (86), 27 states have call successors, (86) [2022-11-18 19:51:20,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 588 transitions. [2022-11-18 19:51:20,055 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 588 transitions. Word has length 67 [2022-11-18 19:51:20,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:20,055 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 588 transitions. [2022-11-18 19:51:20,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 53 states have (on average 2.018867924528302) internal successors, (107), 30 states have internal predecessors, (107), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:20,056 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 588 transitions. [2022-11-18 19:51:20,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-18 19:51:20,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:20,057 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-11-18 19:51:20,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-18 19:51:20,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-18 19:51:20,263 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:51:20,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:20,264 INFO L85 PathProgramCache]: Analyzing trace with hash -281451757, now seen corresponding path program 1 times [2022-11-18 19:51:20,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:20,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514223660] [2022-11-18 19:51:20,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:20,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:20,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 19:51:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:20,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:51:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:20,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:51:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:20,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:51:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:20,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:51:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:20,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 19:51:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:20,722 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-18 19:51:20,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:20,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514223660] [2022-11-18 19:51:20,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514223660] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:51:20,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699170856] [2022-11-18 19:51:20,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:20,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:51:20,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:51:20,725 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:51:20,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 19:51:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:20,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 19:51:20,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:51:21,131 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 28 proven. 27 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 19:51:21,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:51:22,851 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 28 proven. 45 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-18 19:51:22,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699170856] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:51:22,852 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:51:22,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 19] total 38 [2022-11-18 19:51:22,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123406905] [2022-11-18 19:51:22,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:51:22,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-18 19:51:22,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:22,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-18 19:51:22,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1292, Unknown=0, NotChecked=0, Total=1406 [2022-11-18 19:51:22,854 INFO L87 Difference]: Start difference. First operand 550 states and 588 transitions. Second operand has 38 states, 36 states have (on average 2.9444444444444446) internal successors, (106), 34 states have internal predecessors, (106), 14 states have call successors, (16), 5 states have call predecessors, (16), 12 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) [2022-11-18 19:51:23,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:23,517 INFO L93 Difference]: Finished difference Result 589 states and 627 transitions. [2022-11-18 19:51:23,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 19:51:23,518 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 36 states have (on average 2.9444444444444446) internal successors, (106), 34 states have internal predecessors, (106), 14 states have call successors, (16), 5 states have call predecessors, (16), 12 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) Word has length 69 [2022-11-18 19:51:23,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:23,519 INFO L225 Difference]: With dead ends: 589 [2022-11-18 19:51:23,519 INFO L226 Difference]: Without dead ends: 140 [2022-11-18 19:51:23,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 121 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=301, Invalid=2249, Unknown=0, NotChecked=0, Total=2550 [2022-11-18 19:51:23,523 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 180 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:23,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 163 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:51:23,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-18 19:51:23,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 139. [2022-11-18 19:51:23,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 110 states have (on average 1.018181818181818) internal successors, (112), 111 states have internal predecessors, (112), 27 states have call successors, (27), 27 states have call predecessors, (27), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:23,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 139 transitions. [2022-11-18 19:51:23,534 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 139 transitions. Word has length 69 [2022-11-18 19:51:23,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:23,534 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 139 transitions. [2022-11-18 19:51:23,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 36 states have (on average 2.9444444444444446) internal successors, (106), 34 states have internal predecessors, (106), 14 states have call successors, (16), 5 states have call predecessors, (16), 12 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) [2022-11-18 19:51:23,534 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 139 transitions. [2022-11-18 19:51:23,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-18 19:51:23,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:23,539 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 1, 1, 1, 1] [2022-11-18 19:51:23,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-18 19:51:23,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 19:51:23,746 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:51:23,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:23,746 INFO L85 PathProgramCache]: Analyzing trace with hash -4433068, now seen corresponding path program 2 times [2022-11-18 19:51:23,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:23,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224630695] [2022-11-18 19:51:23,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:23,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:25,388 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 0 proven. 768 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:51:25,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:25,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224630695] [2022-11-18 19:51:25,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224630695] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:51:25,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299166745] [2022-11-18 19:51:25,389 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:51:25,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:51:25,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:51:25,392 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:51:25,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 19:51:25,497 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:51:25,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:51:25,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-18 19:51:25,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:51:25,765 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 0 proven. 768 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:51:25,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:51:28,382 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 0 proven. 768 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:51:28,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299166745] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:51:28,382 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:51:28,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 107 [2022-11-18 19:51:28,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7068481] [2022-11-18 19:51:28,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:51:28,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 108 states [2022-11-18 19:51:28,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:28,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2022-11-18 19:51:28,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1514, Invalid=10042, Unknown=0, NotChecked=0, Total=11556 [2022-11-18 19:51:28,388 INFO L87 Difference]: Start difference. First operand 139 states and 139 transitions. Second operand has 108 states, 105 states have (on average 2.0095238095238095) internal successors, (211), 56 states have internal predecessors, (211), 52 states have call successors, (52), 52 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:31,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:31,044 INFO L93 Difference]: Finished difference Result 277 states and 302 transitions. [2022-11-18 19:51:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-11-18 19:51:31,045 INFO L78 Accepts]: Start accepts. Automaton has has 108 states, 105 states have (on average 2.0095238095238095) internal successors, (211), 56 states have internal predecessors, (211), 52 states have call successors, (52), 52 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2022-11-18 19:51:31,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:31,047 INFO L225 Difference]: With dead ends: 277 [2022-11-18 19:51:31,047 INFO L226 Difference]: Without dead ends: 275 [2022-11-18 19:51:31,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7600 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=3672, Invalid=21768, Unknown=0, NotChecked=0, Total=25440 [2022-11-18 19:51:31,055 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 639 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:31,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 74 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 19:51:31,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-11-18 19:51:31,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 274. [2022-11-18 19:51:31,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 218 states have (on average 1.0091743119266054) internal successors, (220), 219 states have internal predecessors, (220), 54 states have call successors, (54), 54 states have call predecessors, (54), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:31,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 274 transitions. [2022-11-18 19:51:31,078 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 274 transitions. Word has length 132 [2022-11-18 19:51:31,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:31,078 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 274 transitions. [2022-11-18 19:51:31,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 108 states, 105 states have (on average 2.0095238095238095) internal successors, (211), 56 states have internal predecessors, (211), 52 states have call successors, (52), 52 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:31,079 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 274 transitions. [2022-11-18 19:51:31,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-11-18 19:51:31,086 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:31,087 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1] [2022-11-18 19:51:31,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 19:51:31,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 19:51:31,299 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:51:31,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:31,300 INFO L85 PathProgramCache]: Analyzing trace with hash -2041066069, now seen corresponding path program 3 times [2022-11-18 19:51:31,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:31,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394163995] [2022-11-18 19:51:31,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:31,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:37,980 INFO L134 CoverageAnalysis]: Checked inductivity of 3354 backedges. 0 proven. 3354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:51:37,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:51:37,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394163995] [2022-11-18 19:51:37,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394163995] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:51:37,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150785972] [2022-11-18 19:51:37,981 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:51:37,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:51:37,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:51:37,982 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:51:37,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 19:51:38,168 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2022-11-18 19:51:38,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:51:38,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 108 conjunts are in the unsatisfiable core [2022-11-18 19:51:38,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:51:38,716 INFO L134 CoverageAnalysis]: Checked inductivity of 3354 backedges. 0 proven. 3354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:51:38,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:51:47,469 INFO L134 CoverageAnalysis]: Checked inductivity of 3354 backedges. 0 proven. 3354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:51:47,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150785972] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:51:47,469 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:51:47,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [108, 108, 108] total 215 [2022-11-18 19:51:47,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193307175] [2022-11-18 19:51:47,470 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:51:47,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 216 states [2022-11-18 19:51:47,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:51:47,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 216 interpolants. [2022-11-18 19:51:47,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5944, Invalid=40496, Unknown=0, NotChecked=0, Total=46440 [2022-11-18 19:51:47,481 INFO L87 Difference]: Start difference. First operand 274 states and 274 transitions. Second operand has 216 states, 213 states have (on average 2.004694835680751) internal successors, (427), 110 states have internal predecessors, (427), 106 states have call successors, (106), 106 states have call predecessors, (106), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:56,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:56,037 INFO L93 Difference]: Finished difference Result 542 states and 593 transitions. [2022-11-18 19:51:56,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2022-11-18 19:51:56,038 INFO L78 Accepts]: Start accepts. Automaton has has 216 states, 213 states have (on average 2.004694835680751) internal successors, (427), 110 states have internal predecessors, (427), 106 states have call successors, (106), 106 states have call predecessors, (106), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 267 [2022-11-18 19:51:56,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:56,041 INFO L225 Difference]: With dead ends: 542 [2022-11-18 19:51:56,042 INFO L226 Difference]: Without dead ends: 540 [2022-11-18 19:51:56,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 745 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 319 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32497 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=14530, Invalid=88190, Unknown=0, NotChecked=0, Total=102720 [2022-11-18 19:51:56,053 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 1612 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1612 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:56,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1612 Valid, 74 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-18 19:51:56,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-11-18 19:51:56,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 539. [2022-11-18 19:51:56,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 430 states have (on average 1.0046511627906978) internal successors, (432), 431 states have internal predecessors, (432), 107 states have call successors, (107), 107 states have call predecessors, (107), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:56,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 539 transitions. [2022-11-18 19:51:56,096 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 539 transitions. Word has length 267 [2022-11-18 19:51:56,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:56,097 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 539 transitions. [2022-11-18 19:51:56,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 216 states, 213 states have (on average 2.004694835680751) internal successors, (427), 110 states have internal predecessors, (427), 106 states have call successors, (106), 106 states have call predecessors, (106), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:56,098 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 539 transitions. [2022-11-18 19:51:56,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2022-11-18 19:51:56,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:56,113 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 53, 53, 53, 53, 53, 52, 52, 1, 1, 1, 1] [2022-11-18 19:51:56,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 19:51:56,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-18 19:51:56,320 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:51:56,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:56,321 INFO L85 PathProgramCache]: Analyzing trace with hash 752102644, now seen corresponding path program 3 times [2022-11-18 19:51:56,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:56,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731394680] [2022-11-18 19:51:56,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:56,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:56,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:20,990 INFO L134 CoverageAnalysis]: Checked inductivity of 13728 backedges. 0 proven. 13728 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:20,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:52:20,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731394680] [2022-11-18 19:52:20,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731394680] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:52:20,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389241545] [2022-11-18 19:52:20,991 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:52:20,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:52:20,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:52:20,992 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:52:20,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 19:52:21,199 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2022-11-18 19:52:21,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:52:21,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-18 19:52:21,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:22,291 INFO L134 CoverageAnalysis]: Checked inductivity of 13728 backedges. 1354 proven. 24 refuted. 0 times theorem prover too weak. 12350 trivial. 0 not checked. [2022-11-18 19:52:22,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:52:22,359 INFO L134 CoverageAnalysis]: Checked inductivity of 13728 backedges. 1354 proven. 24 refuted. 0 times theorem prover too weak. 12350 trivial. 0 not checked. [2022-11-18 19:52:22,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389241545] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:52:22,359 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:52:22,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [214, 15, 15] total 228 [2022-11-18 19:52:22,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243538911] [2022-11-18 19:52:22,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:52:22,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 228 states [2022-11-18 19:52:22,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:52:22,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 228 interpolants. [2022-11-18 19:52:22,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6590, Invalid=45166, Unknown=0, NotChecked=0, Total=51756 [2022-11-18 19:52:22,369 INFO L87 Difference]: Start difference. First operand 539 states and 539 transitions. Second operand has 228 states, 226 states have (on average 2.0265486725663715) internal successors, (458), 116 states have internal predecessors, (458), 113 states have call successors, (114), 113 states have call predecessors, (114), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:22,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:22,914 INFO L93 Difference]: Finished difference Result 539 states and 539 transitions. [2022-11-18 19:52:22,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:52:22,915 INFO L78 Accepts]: Start accepts. Automaton has has 228 states, 226 states have (on average 2.0265486725663715) internal successors, (458), 116 states have internal predecessors, (458), 113 states have call successors, (114), 113 states have call predecessors, (114), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 532 [2022-11-18 19:52:22,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:22,915 INFO L225 Difference]: With dead ends: 539 [2022-11-18 19:52:22,916 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 19:52:22,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1282 GetRequests, 1050 SyntacticMatches, 0 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19687 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=7238, Invalid=47284, Unknown=0, NotChecked=0, Total=54522 [2022-11-18 19:52:22,921 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 107 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:22,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 50 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:52:22,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 19:52:22,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 19:52:22,922 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 19:52:22,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 19:52:22,923 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 532 [2022-11-18 19:52:22,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:22,923 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:52:22,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 228 states, 226 states have (on average 2.0265486725663715) internal successors, (458), 116 states have internal predecessors, (458), 113 states have call successors, (114), 113 states have call predecessors, (114), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:22,924 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 19:52:22,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 19:52:22,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-18 19:52:22,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-18 19:52:22,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-18 19:52:22,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-18 19:52:22,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-18 19:52:22,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-18 19:52:22,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-18 19:52:22,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-18 19:52:22,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-18 19:52:23,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:52:23,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 19:52:23,286 INFO L899 garLoopResultBuilder]: For program point id2FINAL(lines 14 17) no Hoare annotation was computed. [2022-11-18 19:52:23,286 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2022-11-18 19:52:23,287 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-11-18 19:52:23,287 INFO L899 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2022-11-18 19:52:23,289 INFO L895 garLoopResultBuilder]: At program point L16-2(line 16) the Hoare annotation is: (let ((.cse0 (= id2_~x |id2_#in~x|))) (and (or (not (= 2 |id2_#in~x|)) .cse0) (or (not (<= |id2_#in~x| 4)) (not (<= 4 |id2_#in~x|)) .cse0) (not (= |id2_#in~x| 0)))) [2022-11-18 19:52:23,289 INFO L899 garLoopResultBuilder]: For program point L16-3(line 16) no Hoare annotation was computed. [2022-11-18 19:52:23,290 INFO L899 garLoopResultBuilder]: For program point L16-4(line 16) no Hoare annotation was computed. [2022-11-18 19:52:23,290 INFO L899 garLoopResultBuilder]: For program point L16-5(line 16) no Hoare annotation was computed. [2022-11-18 19:52:23,290 INFO L899 garLoopResultBuilder]: For program point id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2022-11-18 19:52:23,290 INFO L899 garLoopResultBuilder]: For program point id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2022-11-18 19:52:23,290 INFO L899 garLoopResultBuilder]: For program point id2EXIT(lines 14 17) no Hoare annotation was computed. [2022-11-18 19:52:23,291 INFO L899 garLoopResultBuilder]: For program point id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2022-11-18 19:52:23,291 INFO L902 garLoopResultBuilder]: At program point id2ENTRY(lines 14 17) the Hoare annotation is: true [2022-11-18 19:52:23,291 INFO L899 garLoopResultBuilder]: For program point id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2022-11-18 19:52:23,291 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 19:52:23,291 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 19:52:23,291 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 19:52:23,292 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 19:52:23,292 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-11-18 19:52:23,292 INFO L899 garLoopResultBuilder]: For program point L22(lines 22 24) no Hoare annotation was computed. [2022-11-18 19:52:23,292 INFO L895 garLoopResultBuilder]: At program point L21(line 21) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~input~0#1|) [2022-11-18 19:52:23,292 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2022-11-18 19:52:23,293 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 25) no Hoare annotation was computed. [2022-11-18 19:52:23,293 INFO L899 garLoopResultBuilder]: For program point idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-11-18 19:52:23,293 INFO L899 garLoopResultBuilder]: For program point idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-11-18 19:52:23,293 INFO L899 garLoopResultBuilder]: For program point idFINAL(lines 9 12) no Hoare annotation was computed. [2022-11-18 19:52:23,293 INFO L899 garLoopResultBuilder]: For program point idEXIT(lines 9 12) no Hoare annotation was computed. [2022-11-18 19:52:23,294 INFO L902 garLoopResultBuilder]: At program point idENTRY(lines 9 12) the Hoare annotation is: true [2022-11-18 19:52:23,294 INFO L899 garLoopResultBuilder]: For program point idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-11-18 19:52:23,294 INFO L899 garLoopResultBuilder]: For program point idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-11-18 19:52:23,294 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2022-11-18 19:52:23,294 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2022-11-18 19:52:23,295 INFO L899 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2022-11-18 19:52:23,296 INFO L895 garLoopResultBuilder]: At program point L11-2(line 11) the Hoare annotation is: (and (or (not (= |id_#in~x| 3)) (= 3 id_~x)) (or (= id_~x 1) (not (= |id_#in~x| 1))) (or (= 5 id_~x) (not (= 5 |id_#in~x|)))) [2022-11-18 19:52:23,297 INFO L899 garLoopResultBuilder]: For program point L11-3(line 11) no Hoare annotation was computed. [2022-11-18 19:52:23,297 INFO L899 garLoopResultBuilder]: For program point L11-4(line 11) no Hoare annotation was computed. [2022-11-18 19:52:23,297 INFO L899 garLoopResultBuilder]: For program point L11-5(line 11) no Hoare annotation was computed. [2022-11-18 19:52:23,301 INFO L444 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:23,304 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:52:23,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:52:23 BoogieIcfgContainer [2022-11-18 19:52:23,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:52:23,310 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:52:23,310 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:52:23,310 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:52:23,311 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:51:08" (3/4) ... [2022-11-18 19:52:23,315 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 19:52:23,323 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2022-11-18 19:52:23,324 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2022-11-18 19:52:23,331 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-18 19:52:23,331 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 19:52:23,332 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 19:52:23,332 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:52:23,374 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:52:23,374 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:52:23,376 INFO L158 Benchmark]: Toolchain (without parser) took 75682.18ms. Allocated memory was 102.8MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 69.9MB in the beginning and 965.7MB in the end (delta: -895.8MB). Peak memory consumption was 308.2MB. Max. memory is 16.1GB. [2022-11-18 19:52:23,376 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 79.7MB. Free memory is still 36.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:52:23,376 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.17ms. Allocated memory is still 102.8MB. Free memory was 69.7MB in the beginning and 79.4MB in the end (delta: -9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:52:23,377 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.72ms. Allocated memory is still 102.8MB. Free memory was 79.4MB in the beginning and 78.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:52:23,377 INFO L158 Benchmark]: Boogie Preprocessor took 33.12ms. Allocated memory is still 102.8MB. Free memory was 78.1MB in the beginning and 76.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:52:23,377 INFO L158 Benchmark]: RCFGBuilder took 284.61ms. Allocated memory is still 102.8MB. Free memory was 76.9MB in the beginning and 67.0MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:52:23,378 INFO L158 Benchmark]: TraceAbstraction took 74930.92ms. Allocated memory was 102.8MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 66.4MB in the beginning and 968.8MB in the end (delta: -902.4MB). Peak memory consumption was 302.9MB. Max. memory is 16.1GB. [2022-11-18 19:52:23,379 INFO L158 Benchmark]: Witness Printer took 64.44ms. Allocated memory is still 1.3GB. Free memory was 968.8MB in the beginning and 965.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:52:23,384 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 79.7MB. Free memory is still 36.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.17ms. Allocated memory is still 102.8MB. Free memory was 69.7MB in the beginning and 79.4MB in the end (delta: -9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.72ms. Allocated memory is still 102.8MB. Free memory was 79.4MB in the beginning and 78.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.12ms. Allocated memory is still 102.8MB. Free memory was 78.1MB in the beginning and 76.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 284.61ms. Allocated memory is still 102.8MB. Free memory was 76.9MB in the beginning and 67.0MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 74930.92ms. Allocated memory was 102.8MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 66.4MB in the beginning and 968.8MB in the end (delta: -902.4MB). Peak memory consumption was 302.9MB. Max. memory is 16.1GB. * Witness Printer took 64.44ms. Allocated memory is still 1.3GB. Free memory was 968.8MB in the beginning and 965.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: 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 3 procedures, 37 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 74.9s, OverallIterations: 19, TraceHistogramMax: 53, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 16.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4134 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4127 mSDsluCounter, 2902 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2452 mSDsCounter, 497 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4472 IncrementalHoareTripleChecker+Invalid, 4969 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 497 mSolverCounterUnsat, 450 mSDtfsCounter, 4472 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3214 GetRequests, 2211 SyntacticMatches, 16 SemanticMatches, 987 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63148 ImplicationChecksByTransitivity, 42.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=550occurred in iteration=15, InterpolantAutomatonStates: 548, 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, 19 MinimizatonAttempts, 140 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 215 PreInvPairs, 215 NumberOfFragments, 55 HoareAnnotationTreeSize, 215 FomulaSimplifications, 154 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 92 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 54.4s InterpolantComputationTime, 2675 NumberOfCodeBlocks, 2425 NumberOfCodeBlocksAsserted, 83 NumberOfCheckSat, 3857 ConstructedInterpolants, 0 QuantifiedInterpolants, 12543 SizeOfPredicates, 122 NumberOfNonLiveVariables, 1965 ConjunctsInSsa, 280 ConjunctsInUnsatCore, 37 InterpolantComputations, 10 PerfectInterpolantSequences, 27804/54758 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 19:52:23,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad9905-8681-4fc6-bbe4-d8b1486b7a44/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