./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-pthread/cs_dekker.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_dekker.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --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 ee7ff83d9ca4f9baaadd009c98a7dd30697b6140296199117a6b05757b5b9f74 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 20:59:20,357 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 20:59:20,425 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-21 20:59:20,431 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 20:59:20,431 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 20:59:20,459 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 20:59:20,460 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 20:59:20,460 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 20:59:20,461 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 20:59:20,462 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 20:59:20,462 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 20:59:20,463 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 20:59:20,464 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 20:59:20,465 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 20:59:20,465 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 20:59:20,466 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 20:59:20,466 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 20:59:20,467 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 20:59:20,467 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 20:59:20,468 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 20:59:20,469 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 20:59:20,469 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 20:59:20,470 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 20:59:20,470 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 20:59:20,471 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 20:59:20,471 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 20:59:20,471 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 20:59:20,472 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 20:59:20,472 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 20:59:20,473 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 20:59:20,473 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 20:59:20,474 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 20:59:20,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 20:59:20,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:59:20,475 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 20:59:20,475 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 20:59:20,475 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 20:59:20,475 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 20:59:20,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 20:59:20,476 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 20:59:20,476 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 20:59:20,477 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 20:59:20,477 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 20:59:20,477 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 20:59:20,477 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee7ff83d9ca4f9baaadd009c98a7dd30697b6140296199117a6b05757b5b9f74 [2023-11-21 20:59:20,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 20:59:20,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 20:59:20,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 20:59:20,785 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 20:59:20,786 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 20:59:20,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/seq-pthread/cs_dekker.i [2023-11-21 20:59:23,998 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 20:59:24,317 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 20:59:24,318 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/sv-benchmarks/c/seq-pthread/cs_dekker.i [2023-11-21 20:59:24,335 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/data/b06a455f5/d299d9af06d74a0eb64226e96efb86e8/FLAG83f71c1e8 [2023-11-21 20:59:24,350 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/data/b06a455f5/d299d9af06d74a0eb64226e96efb86e8 [2023-11-21 20:59:24,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 20:59:24,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 20:59:24,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 20:59:24,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 20:59:24,361 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 20:59:24,362 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:24" (1/1) ... [2023-11-21 20:59:24,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe1fffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:24, skipping insertion in model container [2023-11-21 20:59:24,364 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:24" (1/1) ... [2023-11-21 20:59:24,419 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 20:59:24,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:59:24,926 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 20:59:25,061 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:59:25,103 INFO L206 MainTranslator]: Completed translation [2023-11-21 20:59:25,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:25 WrapperNode [2023-11-21 20:59:25,104 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 20:59:25,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 20:59:25,105 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 20:59:25,105 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 20:59:25,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:25" (1/1) ... [2023-11-21 20:59:25,145 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:25" (1/1) ... [2023-11-21 20:59:25,212 INFO L138 Inliner]: procedures = 145, calls = 301, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 462 [2023-11-21 20:59:25,214 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 20:59:25,215 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 20:59:25,215 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 20:59:25,216 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 20:59:25,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:25" (1/1) ... [2023-11-21 20:59:25,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:25" (1/1) ... [2023-11-21 20:59:25,239 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:25" (1/1) ... [2023-11-21 20:59:25,277 INFO L187 HeapSplitter]: Split 150 memory accesses to 16 slices as follows [2, 13, 8, 8, 29, 21, 7, 7, 5, 9, 7, 13, 5, 6, 5, 5] [2023-11-21 20:59:25,279 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:25" (1/1) ... [2023-11-21 20:59:25,279 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:25" (1/1) ... [2023-11-21 20:59:25,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:25" (1/1) ... [2023-11-21 20:59:25,349 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:25" (1/1) ... [2023-11-21 20:59:25,356 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:25" (1/1) ... [2023-11-21 20:59:25,378 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:25" (1/1) ... [2023-11-21 20:59:25,406 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 20:59:25,406 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 20:59:25,407 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 20:59:25,407 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 20:59:25,408 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:25" (1/1) ... [2023-11-21 20:59:25,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:59:25,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:59:25,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 20:59:25,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 20:59:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 20:59:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 20:59:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 20:59:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 20:59:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-21 20:59:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-21 20:59:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-21 20:59:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-21 20:59:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-21 20:59:25,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-21 20:59:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-21 20:59:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-21 20:59:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-21 20:59:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-21 20:59:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-21 20:59:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-21 20:59:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 20:59:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 20:59:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 20:59:25,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 20:59:25,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-21 20:59:25,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-21 20:59:25,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-21 20:59:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-21 20:59:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-21 20:59:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-21 20:59:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-21 20:59:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-21 20:59:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-21 20:59:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-21 20:59:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-21 20:59:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-21 20:59:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 20:59:25,581 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 20:59:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 20:59:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 20:59:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-21 20:59:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-21 20:59:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-21 20:59:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-21 20:59:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-21 20:59:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-21 20:59:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-21 20:59:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-21 20:59:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-21 20:59:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-21 20:59:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-21 20:59:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-21 20:59:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-21 20:59:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-21 20:59:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-21 20:59:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-11-21 20:59:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-21 20:59:25,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-21 20:59:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-21 20:59:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-21 20:59:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-21 20:59:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-21 20:59:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-21 20:59:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-21 20:59:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-21 20:59:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-21 20:59:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-21 20:59:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-21 20:59:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-21 20:59:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-21 20:59:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-21 20:59:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-21 20:59:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-21 20:59:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-11-21 20:59:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-11-21 20:59:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-11-21 20:59:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-21 20:59:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-21 20:59:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 20:59:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-21 20:59:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-21 20:59:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-21 20:59:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-21 20:59:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-21 20:59:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-21 20:59:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-21 20:59:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-21 20:59:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-21 20:59:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-21 20:59:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-21 20:59:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-21 20:59:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-21 20:59:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-21 20:59:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-21 20:59:25,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-11-21 20:59:25,589 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-21 20:59:25,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-21 20:59:25,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 20:59:25,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 20:59:25,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 20:59:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 20:59:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 20:59:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-21 20:59:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-21 20:59:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-21 20:59:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-21 20:59:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-21 20:59:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-21 20:59:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-21 20:59:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-21 20:59:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-21 20:59:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-21 20:59:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-21 20:59:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 20:59:25,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 20:59:25,889 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 20:59:25,892 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 20:59:28,663 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 20:59:28,817 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 20:59:28,818 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 20:59:28,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:28 BoogieIcfgContainer [2023-11-21 20:59:28,820 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 20:59:28,824 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 20:59:28,825 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 20:59:28,828 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 20:59:28,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 08:59:24" (1/3) ... [2023-11-21 20:59:28,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b93d081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:28, skipping insertion in model container [2023-11-21 20:59:28,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:25" (2/3) ... [2023-11-21 20:59:28,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b93d081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:28, skipping insertion in model container [2023-11-21 20:59:28,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:28" (3/3) ... [2023-11-21 20:59:28,834 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_dekker.i [2023-11-21 20:59:28,857 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 20:59:28,858 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-21 20:59:28,931 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 20:59:28,939 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=LoopHeads, 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;@71f29141, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 20:59:28,939 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-21 20:59:28,944 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 61 states have (on average 1.3442622950819672) internal successors, (82), 69 states have internal predecessors, (82), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-21 20:59:28,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 20:59:28,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:59:28,952 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 20:59:28,952 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-21 20:59:28,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:28,958 INFO L85 PathProgramCache]: Analyzing trace with hash 10789711, now seen corresponding path program 1 times [2023-11-21 20:59:28,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:28,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365557453] [2023-11-21 20:59:28,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:28,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:29,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:59:29,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:59:29,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365557453] [2023-11-21 20:59:29,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365557453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:59:29,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:59:29,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 20:59:29,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864678710] [2023-11-21 20:59:29,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:59:29,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 20:59:29,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:59:29,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 20:59:29,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 20:59:29,687 INFO L87 Difference]: Start difference. First operand has 110 states, 61 states have (on average 1.3442622950819672) internal successors, (82), 69 states have internal predecessors, (82), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:31,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:59:32,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:59:32,809 INFO L93 Difference]: Finished difference Result 218 states and 309 transitions. [2023-11-21 20:59:32,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:59:32,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-21 20:59:32,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:59:32,818 INFO L225 Difference]: With dead ends: 218 [2023-11-21 20:59:32,818 INFO L226 Difference]: Without dead ends: 14 [2023-11-21 20:59:32,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 20:59:32,827 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 3 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-21 20:59:32,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 391 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2023-11-21 20:59:32,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-21 20:59:32,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-21 20:59:32,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.5) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:32,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2023-11-21 20:59:32,860 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 4 [2023-11-21 20:59:32,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:59:32,860 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2023-11-21 20:59:32,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:32,861 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-21 20:59:32,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 20:59:32,861 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:59:32,861 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-21 20:59:32,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 20:59:32,862 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-21 20:59:32,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:32,863 INFO L85 PathProgramCache]: Analyzing trace with hash -686099021, now seen corresponding path program 1 times [2023-11-21 20:59:32,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:32,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940856981] [2023-11-21 20:59:32,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:32,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:33,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:59:33,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:59:33,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940856981] [2023-11-21 20:59:33,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940856981] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:59:33,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983843619] [2023-11-21 20:59:33,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:33,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:59:33,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:59:33,184 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:59:33,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 20:59:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:33,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 20:59:33,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:59:33,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:59:33,657 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 20:59:33,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983843619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:59:33,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 20:59:33,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-21 20:59:33,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254246315] [2023-11-21 20:59:33,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:59:33,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 20:59:33,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:59:33,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 20:59:33,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-21 20:59:33,667 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:33,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:59:33,795 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2023-11-21 20:59:33,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 20:59:33,797 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-21 20:59:33,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:59:33,798 INFO L225 Difference]: With dead ends: 15 [2023-11-21 20:59:33,798 INFO L226 Difference]: Without dead ends: 14 [2023-11-21 20:59:33,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-21 20:59:33,800 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 19 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:59:33,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 12 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:59:33,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-21 20:59:33,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-11-21 20:59:33,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:33,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2023-11-21 20:59:33,805 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 7 [2023-11-21 20:59:33,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:59:33,805 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2023-11-21 20:59:33,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:33,806 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-11-21 20:59:33,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 20:59:33,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:59:33,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:59:33,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 20:59:34,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:59:34,008 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-21 20:59:34,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:34,008 INFO L85 PathProgramCache]: Analyzing trace with hash -686098362, now seen corresponding path program 1 times [2023-11-21 20:59:34,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:34,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59310614] [2023-11-21 20:59:34,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:34,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:34,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:59:34,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:59:34,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59310614] [2023-11-21 20:59:34,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59310614] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:59:34,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573358823] [2023-11-21 20:59:34,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:34,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:59:34,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:59:34,183 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:59:34,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 20:59:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:34,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 20:59:34,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:59:34,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:59:34,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 20:59:34,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:59:34,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573358823] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 20:59:34,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 20:59:34,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-11-21 20:59:34,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571712562] [2023-11-21 20:59:34,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 20:59:34,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-21 20:59:34,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:59:34,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-21 20:59:34,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-21 20:59:34,580 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:34,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:59:34,726 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2023-11-21 20:59:34,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 20:59:34,726 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-21 20:59:34,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:59:34,727 INFO L225 Difference]: With dead ends: 29 [2023-11-21 20:59:34,727 INFO L226 Difference]: Without dead ends: 17 [2023-11-21 20:59:34,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-21 20:59:34,729 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:59:34,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 32 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:59:34,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-21 20:59:34,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-21 20:59:34,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:34,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2023-11-21 20:59:34,735 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2023-11-21 20:59:34,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:59:34,735 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2023-11-21 20:59:34,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:34,735 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2023-11-21 20:59:34,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 20:59:34,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:59:34,736 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1] [2023-11-21 20:59:34,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 20:59:34,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:59:34,942 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-21 20:59:34,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:34,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1086472628, now seen corresponding path program 1 times [2023-11-21 20:59:34,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:34,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448969885] [2023-11-21 20:59:34,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:34,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:35,129 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 20:59:35,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:59:35,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448969885] [2023-11-21 20:59:35,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448969885] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:59:35,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:59:35,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 20:59:35,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627569386] [2023-11-21 20:59:35,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:59:35,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 20:59:35,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:59:35,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 20:59:35,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:59:35,139 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:35,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:59:35,184 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2023-11-21 20:59:35,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 20:59:35,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-21 20:59:35,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:59:35,185 INFO L225 Difference]: With dead ends: 17 [2023-11-21 20:59:35,186 INFO L226 Difference]: Without dead ends: 16 [2023-11-21 20:59:35,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 20:59:35,187 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 20:59:35,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 20:59:35,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-21 20:59:35,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-21 20:59:35,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:35,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2023-11-21 20:59:35,193 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11 [2023-11-21 20:59:35,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:59:35,193 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-21 20:59:35,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:35,194 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2023-11-21 20:59:35,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 20:59:35,194 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:59:35,194 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1] [2023-11-21 20:59:35,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 20:59:35,195 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-21 20:59:35,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:35,196 INFO L85 PathProgramCache]: Analyzing trace with hash 423154374, now seen corresponding path program 2 times [2023-11-21 20:59:35,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:35,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307723199] [2023-11-21 20:59:35,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:35,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:35,385 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 20:59:35,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:59:35,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307723199] [2023-11-21 20:59:35,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307723199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:59:35,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:59:35,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 20:59:35,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140962485] [2023-11-21 20:59:35,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:59:35,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 20:59:35,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:59:35,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 20:59:35,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 20:59:35,388 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:35,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:59:35,489 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2023-11-21 20:59:35,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:59:35,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-21 20:59:35,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:59:35,490 INFO L225 Difference]: With dead ends: 31 [2023-11-21 20:59:35,490 INFO L226 Difference]: Without dead ends: 29 [2023-11-21 20:59:35,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 20:59:35,491 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:59:35,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:59:35,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-21 20:59:35,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-21 20:59:35,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 28 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:35,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2023-11-21 20:59:35,497 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 13 [2023-11-21 20:59:35,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:59:35,498 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2023-11-21 20:59:35,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:35,498 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2023-11-21 20:59:35,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-21 20:59:35,499 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:59:35,499 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1] [2023-11-21 20:59:35,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 20:59:35,500 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-21 20:59:35,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:35,500 INFO L85 PathProgramCache]: Analyzing trace with hash 280786950, now seen corresponding path program 1 times [2023-11-21 20:59:35,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:35,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362346385] [2023-11-21 20:59:35,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:35,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:35,854 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-21 20:59:35,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:59:35,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362346385] [2023-11-21 20:59:35,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362346385] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:59:35,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327593111] [2023-11-21 20:59:35,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:35,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:59:35,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:59:35,858 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:59:35,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 20:59:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:36,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 20:59:36,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:59:36,323 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-21 20:59:36,323 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 20:59:36,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327593111] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:59:36,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 20:59:36,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-21 20:59:36,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835477224] [2023-11-21 20:59:36,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:59:36,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 20:59:36,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:59:36,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 20:59:36,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-21 20:59:36,325 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:36,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:59:36,461 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2023-11-21 20:59:36,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 20:59:36,462 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-11-21 20:59:36,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:59:36,463 INFO L225 Difference]: With dead ends: 29 [2023-11-21 20:59:36,463 INFO L226 Difference]: Without dead ends: 28 [2023-11-21 20:59:36,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-21 20:59:36,464 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:59:36,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 14 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 20:59:36,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-21 20:59:36,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-21 20:59:36,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:36,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2023-11-21 20:59:36,469 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 26 [2023-11-21 20:59:36,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:59:36,470 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2023-11-21 20:59:36,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:36,470 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2023-11-21 20:59:36,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 20:59:36,471 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:59:36,471 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1] [2023-11-21 20:59:36,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 20:59:36,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:59:36,689 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-21 20:59:36,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:36,689 INFO L85 PathProgramCache]: Analyzing trace with hash 114461029, now seen corresponding path program 1 times [2023-11-21 20:59:36,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:36,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961401233] [2023-11-21 20:59:36,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:36,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:36,916 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-21 20:59:36,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:59:36,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961401233] [2023-11-21 20:59:36,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961401233] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:59:36,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:59:36,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 20:59:36,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108195945] [2023-11-21 20:59:36,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:59:36,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 20:59:36,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:59:36,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 20:59:36,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 20:59:36,920 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:36,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:59:36,977 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2023-11-21 20:59:36,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 20:59:36,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-11-21 20:59:36,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:59:36,978 INFO L225 Difference]: With dead ends: 28 [2023-11-21 20:59:36,978 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 20:59:36,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 20:59:36,979 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 20:59:36,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 20:59:36,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 20:59:36,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 20:59:36,980 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) [2023-11-21 20:59:36,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 20:59:36,981 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2023-11-21 20:59:36,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:59:36,981 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 20:59:36,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:36,981 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 20:59:36,981 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 20:59:36,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-21 20:59:36,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-21 20:59:36,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-21 20:59:36,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-21 20:59:36,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-21 20:59:36,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-21 20:59:36,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-21 20:59:36,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-21 20:59:36,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 20:59:36,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 20:59:37,141 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 5 7) the Hoare annotation is: true [2023-11-21 20:59:37,141 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2023-11-21 20:59:37,141 INFO L899 garLoopResultBuilder]: For program point __CS_pthread_createEXIT(lines 664 677) no Hoare annotation was computed. [2023-11-21 20:59:37,141 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 664 677) the Hoare annotation is: true [2023-11-21 20:59:37,142 INFO L899 garLoopResultBuilder]: For program point __CS_pthread_joinEXIT(lines 642 663) no Hoare annotation was computed. [2023-11-21 20:59:37,142 INFO L899 garLoopResultBuilder]: For program point __CS_pthread_joinFINAL(lines 642 663) no Hoare annotation was computed. [2023-11-21 20:59:37,142 INFO L902 garLoopResultBuilder]: At program point L661(line 661) the Hoare annotation is: true [2023-11-21 20:59:37,142 INFO L899 garLoopResultBuilder]: For program point L661-1(line 661) no Hoare annotation was computed. [2023-11-21 20:59:37,142 INFO L899 garLoopResultBuilder]: For program point L655(lines 655 660) no Hoare annotation was computed. [2023-11-21 20:59:37,142 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 642 663) the Hoare annotation is: true [2023-11-21 20:59:37,142 INFO L899 garLoopResultBuilder]: For program point L650-2(lines 650 654) no Hoare annotation was computed. [2023-11-21 20:59:37,142 INFO L899 garLoopResultBuilder]: For program point L644(lines 644 649) no Hoare annotation was computed. [2023-11-21 20:59:37,142 INFO L902 garLoopResultBuilder]: At program point L787(line 787) the Hoare annotation is: true [2023-11-21 20:59:37,143 INFO L899 garLoopResultBuilder]: For program point L787-1(lines 776 790) no Hoare annotation was computed. [2023-11-21 20:59:37,143 INFO L902 garLoopResultBuilder]: At program point L783(line 783) the Hoare annotation is: true [2023-11-21 20:59:37,143 INFO L899 garLoopResultBuilder]: For program point L783-1(lines 776 790) no Hoare annotation was computed. [2023-11-21 20:59:37,143 INFO L902 garLoopResultBuilder]: At program point L779(line 779) the Hoare annotation is: true [2023-11-21 20:59:37,143 INFO L899 garLoopResultBuilder]: For program point L779-1(lines 776 790) no Hoare annotation was computed. [2023-11-21 20:59:37,143 INFO L899 garLoopResultBuilder]: For program point L775(lines 775 790) no Hoare annotation was computed. [2023-11-21 20:59:37,143 INFO L902 garLoopResultBuilder]: At program point L788(line 788) the Hoare annotation is: true [2023-11-21 20:59:37,143 INFO L899 garLoopResultBuilder]: For program point L788-1(line 788) no Hoare annotation was computed. [2023-11-21 20:59:37,144 INFO L902 garLoopResultBuilder]: At program point L784(line 784) the Hoare annotation is: true [2023-11-21 20:59:37,144 INFO L899 garLoopResultBuilder]: For program point L784-1(line 784) no Hoare annotation was computed. [2023-11-21 20:59:37,144 INFO L899 garLoopResultBuilder]: For program point ##fun~$Pointer$~TO~$Pointer$EXIT(line -1) no Hoare annotation was computed. [2023-11-21 20:59:37,144 INFO L902 garLoopResultBuilder]: At program point L789(line 789) the Hoare annotation is: true [2023-11-21 20:59:37,144 INFO L899 garLoopResultBuilder]: For program point L789-1(lines 776 790) no Hoare annotation was computed. [2023-11-21 20:59:37,144 INFO L902 garLoopResultBuilder]: At program point L785(line 785) the Hoare annotation is: true [2023-11-21 20:59:37,144 INFO L899 garLoopResultBuilder]: For program point L785-1(lines 776 790) no Hoare annotation was computed. [2023-11-21 20:59:37,144 INFO L902 garLoopResultBuilder]: At program point L781(line 781) the Hoare annotation is: true [2023-11-21 20:59:37,145 INFO L899 garLoopResultBuilder]: For program point L781-1(lines 776 790) no Hoare annotation was computed. [2023-11-21 20:59:37,145 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-11-21 20:59:37,145 INFO L902 garLoopResultBuilder]: At program point L786(line 786) the Hoare annotation is: true [2023-11-21 20:59:37,145 INFO L899 garLoopResultBuilder]: For program point L786-1(line 786) no Hoare annotation was computed. [2023-11-21 20:59:37,145 INFO L902 garLoopResultBuilder]: At program point L782(line 782) the Hoare annotation is: true [2023-11-21 20:59:37,145 INFO L899 garLoopResultBuilder]: For program point L782-1(line 782) no Hoare annotation was computed. [2023-11-21 20:59:37,145 INFO L899 garLoopResultBuilder]: For program point __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 565) no Hoare annotation was computed. [2023-11-21 20:59:37,145 INFO L899 garLoopResultBuilder]: For program point __CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 565) no Hoare annotation was computed. [2023-11-21 20:59:37,146 INFO L899 garLoopResultBuilder]: For program point __CS_csEXIT(lines 562 568) no Hoare annotation was computed. [2023-11-21 20:59:37,146 INFO L899 garLoopResultBuilder]: For program point __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 566) no Hoare annotation was computed. [2023-11-21 20:59:37,146 INFO L899 garLoopResultBuilder]: For program point __CS_csErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 566) no Hoare annotation was computed. [2023-11-21 20:59:37,146 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 562 568) the Hoare annotation is: true [2023-11-21 20:59:37,146 INFO L899 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2023-11-21 20:59:37,146 INFO L899 garLoopResultBuilder]: For program point L565(line 565) no Hoare annotation was computed. [2023-11-21 20:59:37,146 INFO L899 garLoopResultBuilder]: For program point L565-1(line 565) no Hoare annotation was computed. [2023-11-21 20:59:37,146 INFO L902 garLoopResultBuilder]: At program point L565-2(line 565) the Hoare annotation is: true [2023-11-21 20:59:37,147 INFO L899 garLoopResultBuilder]: For program point L565-3(line 565) no Hoare annotation was computed. [2023-11-21 20:59:37,147 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 800) no Hoare annotation was computed. [2023-11-21 20:59:37,147 INFO L902 garLoopResultBuilder]: At program point L861(line 861) the Hoare annotation is: true [2023-11-21 20:59:37,147 INFO L899 garLoopResultBuilder]: For program point L861-1(line 861) no Hoare annotation was computed. [2023-11-21 20:59:37,147 INFO L902 garLoopResultBuilder]: At program point L845(line 845) the Hoare annotation is: true [2023-11-21 20:59:37,147 INFO L899 garLoopResultBuilder]: For program point L845-1(line 845) no Hoare annotation was computed. [2023-11-21 20:59:37,147 INFO L902 garLoopResultBuilder]: At program point L870(line 870) the Hoare annotation is: true [2023-11-21 20:59:37,147 INFO L899 garLoopResultBuilder]: For program point L870-1(line 870) no Hoare annotation was computed. [2023-11-21 20:59:37,148 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 805) no Hoare annotation was computed. [2023-11-21 20:59:37,148 INFO L902 garLoopResultBuilder]: At program point L862(line 862) the Hoare annotation is: true [2023-11-21 20:59:37,148 INFO L899 garLoopResultBuilder]: For program point L862-1(line 862) no Hoare annotation was computed. [2023-11-21 20:59:37,148 INFO L902 garLoopResultBuilder]: At program point L854(line 854) the Hoare annotation is: true [2023-11-21 20:59:37,148 INFO L899 garLoopResultBuilder]: For program point L854-1(line 854) no Hoare annotation was computed. [2023-11-21 20:59:37,148 INFO L902 garLoopResultBuilder]: At program point L871(line 871) the Hoare annotation is: true [2023-11-21 20:59:37,148 INFO L899 garLoopResultBuilder]: For program point L871-1(line 871) no Hoare annotation was computed. [2023-11-21 20:59:37,148 INFO L899 garLoopResultBuilder]: For program point L805-3(line 805) no Hoare annotation was computed. [2023-11-21 20:59:37,149 INFO L899 garLoopResultBuilder]: For program point L805-4(line 805) no Hoare annotation was computed. [2023-11-21 20:59:37,149 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 805) no Hoare annotation was computed. [2023-11-21 20:59:37,149 INFO L895 garLoopResultBuilder]: At program point L805-5(lines 805 808) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~i~0#1| 0)) (.cse1 (= |ULTIMATE.start_main_~j~2#1| 0)) (.cse3 (<= 1 |ULTIMATE.start_main_~i~0#1|)) (.cse4 (<= |ULTIMATE.start_main_~i~0#1| 2)) (.cse2 (<= 1 |ULTIMATE.start_main_~j~2#1|))) (or (and .cse0 .cse1) (and .cse0 .cse2) (and .cse3 .cse4 .cse1) (and .cse3 .cse4 .cse2))) [2023-11-21 20:59:37,149 INFO L902 garLoopResultBuilder]: At program point L863(line 863) the Hoare annotation is: true [2023-11-21 20:59:37,149 INFO L899 garLoopResultBuilder]: For program point L863-1(line 863) no Hoare annotation was computed. [2023-11-21 20:59:37,150 INFO L902 garLoopResultBuilder]: At program point L855(line 855) the Hoare annotation is: true [2023-11-21 20:59:37,150 INFO L899 garLoopResultBuilder]: For program point L855-1(line 855) no Hoare annotation was computed. [2023-11-21 20:59:37,150 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 20:59:37,150 INFO L902 garLoopResultBuilder]: At program point L872(line 872) the Hoare annotation is: true [2023-11-21 20:59:37,150 INFO L902 garLoopResultBuilder]: At program point L839(line 839) the Hoare annotation is: true [2023-11-21 20:59:37,150 INFO L899 garLoopResultBuilder]: For program point L872-1(line 872) no Hoare annotation was computed. [2023-11-21 20:59:37,150 INFO L899 garLoopResultBuilder]: For program point L839-1(line 839) no Hoare annotation was computed. [2023-11-21 20:59:37,150 INFO L902 garLoopResultBuilder]: At program point L864(line 864) the Hoare annotation is: true [2023-11-21 20:59:37,150 INFO L899 garLoopResultBuilder]: For program point L864-1(line 864) no Hoare annotation was computed. [2023-11-21 20:59:37,151 INFO L902 garLoopResultBuilder]: At program point L856(line 856) the Hoare annotation is: true [2023-11-21 20:59:37,151 INFO L899 garLoopResultBuilder]: For program point L856-1(line 856) no Hoare annotation was computed. [2023-11-21 20:59:37,151 INFO L899 garLoopResultBuilder]: For program point L848(lines 848 853) no Hoare annotation was computed. [2023-11-21 20:59:37,151 INFO L899 garLoopResultBuilder]: For program point L848-1(lines 848 853) no Hoare annotation was computed. [2023-11-21 20:59:37,151 INFO L902 garLoopResultBuilder]: At program point L873(line 873) the Hoare annotation is: true [2023-11-21 20:59:37,151 INFO L899 garLoopResultBuilder]: For program point L873-1(line 873) no Hoare annotation was computed. [2023-11-21 20:59:37,151 INFO L902 garLoopResultBuilder]: At program point L865(line 865) the Hoare annotation is: true [2023-11-21 20:59:37,151 INFO L899 garLoopResultBuilder]: For program point L865-1(line 865) no Hoare annotation was computed. [2023-11-21 20:59:37,152 INFO L902 garLoopResultBuilder]: At program point L857(line 857) the Hoare annotation is: true [2023-11-21 20:59:37,152 INFO L899 garLoopResultBuilder]: For program point L857-1(line 857) no Hoare annotation was computed. [2023-11-21 20:59:37,152 INFO L902 garLoopResultBuilder]: At program point L866(line 866) the Hoare annotation is: true [2023-11-21 20:59:37,152 INFO L899 garLoopResultBuilder]: For program point L866-1(line 866) no Hoare annotation was computed. [2023-11-21 20:59:37,152 INFO L899 garLoopResultBuilder]: For program point L800-3(line 800) no Hoare annotation was computed. [2023-11-21 20:59:37,152 INFO L899 garLoopResultBuilder]: For program point L800-4(line 800) no Hoare annotation was computed. [2023-11-21 20:59:37,152 INFO L895 garLoopResultBuilder]: At program point L800-5(lines 800 809) the Hoare annotation is: (or (< 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0)) [2023-11-21 20:59:37,152 INFO L902 garLoopResultBuilder]: At program point L858(line 858) the Hoare annotation is: true [2023-11-21 20:59:37,153 INFO L899 garLoopResultBuilder]: For program point L858-1(line 858) no Hoare annotation was computed. [2023-11-21 20:59:37,153 INFO L899 garLoopResultBuilder]: For program point L842(lines 842 847) no Hoare annotation was computed. [2023-11-21 20:59:37,153 INFO L899 garLoopResultBuilder]: For program point L842-1(lines 842 847) no Hoare annotation was computed. [2023-11-21 20:59:37,153 INFO L902 garLoopResultBuilder]: At program point L867(line 867) the Hoare annotation is: true [2023-11-21 20:59:37,158 INFO L899 garLoopResultBuilder]: For program point L867-1(line 867) no Hoare annotation was computed. [2023-11-21 20:59:37,158 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 20:59:37,158 INFO L902 garLoopResultBuilder]: At program point L859(line 859) the Hoare annotation is: true [2023-11-21 20:59:37,158 INFO L899 garLoopResultBuilder]: For program point L859-1(line 859) no Hoare annotation was computed. [2023-11-21 20:59:37,158 INFO L902 garLoopResultBuilder]: At program point L851(line 851) the Hoare annotation is: true [2023-11-21 20:59:37,159 INFO L899 garLoopResultBuilder]: For program point L851-1(line 851) no Hoare annotation was computed. [2023-11-21 20:59:37,159 INFO L902 garLoopResultBuilder]: At program point L868(line 868) the Hoare annotation is: true [2023-11-21 20:59:37,159 INFO L899 garLoopResultBuilder]: For program point L868-1(line 868) no Hoare annotation was computed. [2023-11-21 20:59:37,159 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 800) no Hoare annotation was computed. [2023-11-21 20:59:37,159 INFO L902 garLoopResultBuilder]: At program point L860(line 860) the Hoare annotation is: true [2023-11-21 20:59:37,159 INFO L899 garLoopResultBuilder]: For program point L860-1(line 860) no Hoare annotation was computed. [2023-11-21 20:59:37,159 INFO L902 garLoopResultBuilder]: At program point L869(line 869) the Hoare annotation is: true [2023-11-21 20:59:37,159 INFO L899 garLoopResultBuilder]: For program point L836(lines 836 841) no Hoare annotation was computed. [2023-11-21 20:59:37,159 INFO L899 garLoopResultBuilder]: For program point L869-1(line 869) no Hoare annotation was computed. [2023-11-21 20:59:37,160 INFO L899 garLoopResultBuilder]: For program point L836-1(lines 836 841) no Hoare annotation was computed. [2023-11-21 20:59:37,165 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-11-21 20:59:37,167 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 20:59:37,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 08:59:37 BoogieIcfgContainer [2023-11-21 20:59:37,192 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 20:59:37,192 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 20:59:37,192 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 20:59:37,192 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 20:59:37,193 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:28" (3/4) ... [2023-11-21 20:59:37,195 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 20:59:37,198 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_pthread_join [2023-11-21 20:59:37,198 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-21 20:59:37,198 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_pthread_create [2023-11-21 20:59:37,198 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-21 20:59:37,198 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_cs [2023-11-21 20:59:37,216 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2023-11-21 20:59:37,218 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-21 20:59:37,219 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-21 20:59:37,220 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-21 20:59:37,222 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 20:59:37,410 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 20:59:37,411 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 20:59:37,411 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 20:59:37,412 INFO L158 Benchmark]: Toolchain (without parser) took 13057.69ms. Allocated memory was 146.8MB in the beginning and 213.9MB in the end (delta: 67.1MB). Free memory was 99.8MB in the beginning and 132.2MB in the end (delta: -32.3MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2023-11-21 20:59:37,412 INFO L158 Benchmark]: CDTParser took 1.11ms. Allocated memory is still 146.8MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 20:59:37,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 748.61ms. Allocated memory is still 146.8MB. Free memory was 99.8MB in the beginning and 72.1MB in the end (delta: 27.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-21 20:59:37,413 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.55ms. Allocated memory is still 146.8MB. Free memory was 71.7MB in the beginning and 67.1MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 20:59:37,413 INFO L158 Benchmark]: Boogie Preprocessor took 190.56ms. Allocated memory is still 146.8MB. Free memory was 67.1MB in the beginning and 60.0MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 20:59:37,414 INFO L158 Benchmark]: RCFGBuilder took 3413.73ms. Allocated memory was 146.8MB in the beginning and 178.3MB in the end (delta: 31.5MB). Free memory was 59.9MB in the beginning and 98.6MB in the end (delta: -38.6MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2023-11-21 20:59:37,414 INFO L158 Benchmark]: TraceAbstraction took 8367.16ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 98.6MB in the beginning and 143.7MB in the end (delta: -45.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 20:59:37,414 INFO L158 Benchmark]: Witness Printer took 219.18ms. Allocated memory is still 213.9MB. Free memory was 143.7MB in the beginning and 132.2MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 20:59:37,417 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.11ms. Allocated memory is still 146.8MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 748.61ms. Allocated memory is still 146.8MB. Free memory was 99.8MB in the beginning and 72.1MB in the end (delta: 27.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.55ms. Allocated memory is still 146.8MB. Free memory was 71.7MB in the beginning and 67.1MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 190.56ms. Allocated memory is still 146.8MB. Free memory was 67.1MB in the beginning and 60.0MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 3413.73ms. Allocated memory was 146.8MB in the beginning and 178.3MB in the end (delta: 31.5MB). Free memory was 59.9MB in the beginning and 98.6MB in the end (delta: -38.6MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. * TraceAbstraction took 8367.16ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 98.6MB in the beginning and 143.7MB in the end (delta: -45.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 219.18ms. Allocated memory is still 213.9MB. Free memory was 143.7MB in the beginning and 132.2MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. 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: 565]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 565]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 805]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 805]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 800]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 800]: 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 6 procedures, 110 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 8.3s, OverallIterations: 7, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 474 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 316 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 173 IncrementalHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 158 mSDtfsCounter, 173 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 171 PreInvPairs, 204 NumberOfFragments, 82 HoareAnnotationTreeSize, 171 FomulaSimplifications, 43 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 42 FomulaSimplificationsInter, 40 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 131 ConstructedInterpolants, 0 QuantifiedInterpolants, 331 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1418 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 168/209 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 800]: Loop Invariant Derived loop invariant: ((0 < i) || (i == 0)) - InvariantResult [Line: 805]: Loop Invariant Derived loop invariant: (((((i == 0) && (j == 0)) || ((i == 0) && (1 <= j))) || (((1 <= i) && (i <= 2)) && (j == 0))) || (((1 <= i) && (i <= 2)) && (1 <= j))) RESULT: Ultimate proved your program to be correct! [2023-11-21 20:59:37,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa596992-d734-41a3-8d87-f27ad609b8e2/bin/uautomizer-verify-bycVGegfSx/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