./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/ofuf_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/ofuf_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a23a17038467a4b0973e39785173179a6b9a1bb4d9769749cbca92c19670a850 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:50:16,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:50:16,394 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:50:16,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:50:16,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:50:16,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:50:16,451 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:50:16,452 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:50:16,453 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:50:16,458 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:50:16,459 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:50:16,459 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:50:16,460 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:50:16,462 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:50:16,462 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:50:16,463 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:50:16,463 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:50:16,464 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:50:16,464 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:50:16,464 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:50:16,465 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:50:16,465 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:50:16,466 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:50:16,466 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:50:16,467 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:50:16,467 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:50:16,468 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:50:16,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:50:16,469 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:50:16,469 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:50:16,471 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:50:16,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:50:16,471 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:50:16,471 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:50:16,472 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:50:16,472 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:50:16,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:50:16,472 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:50:16,473 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:50:16,473 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:50:16,473 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:50:16,474 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:50:16,474 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_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a23a17038467a4b0973e39785173179a6b9a1bb4d9769749cbca92c19670a850 [2023-11-26 11:50:16,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:50:16,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:50:16,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:50:16,813 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:50:16,813 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:50:16,815 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/loop-industry-pattern/ofuf_2.c [2023-11-26 11:50:20,065 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:50:20,430 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:50:20,432 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c [2023-11-26 11:50:20,450 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/data/098aabd50/eeef03e6a48e404db4a06df8f98af381/FLAG06ca8b068 [2023-11-26 11:50:20,469 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/data/098aabd50/eeef03e6a48e404db4a06df8f98af381 [2023-11-26 11:50:20,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:50:20,479 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:50:20,483 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:50:20,483 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:50:20,490 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:50:20,491 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:50:20" (1/1) ... [2023-11-26 11:50:20,492 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eb3c6ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:20, skipping insertion in model container [2023-11-26 11:50:20,492 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:50:20" (1/1) ... [2023-11-26 11:50:20,564 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:50:20,959 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c[11342,11355] [2023-11-26 11:50:20,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:50:20,977 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:50:21,060 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c[11342,11355] [2023-11-26 11:50:21,061 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:50:21,077 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:50:21,087 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:50:21,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:21 WrapperNode [2023-11-26 11:50:21,088 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:50:21,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:50:21,090 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:50:21,090 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:50:21,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:21" (1/1) ... [2023-11-26 11:50:21,160 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:21" (1/1) ... [2023-11-26 11:50:21,272 INFO L138 Inliner]: procedures = 29, calls = 156, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 446 [2023-11-26 11:50:21,272 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:50:21,273 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:50:21,273 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:50:21,280 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:50:21,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:21" (1/1) ... [2023-11-26 11:50:21,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:21" (1/1) ... [2023-11-26 11:50:21,314 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:21" (1/1) ... [2023-11-26 11:50:21,387 INFO L175 MemorySlicer]: Split 83 memory accesses to 15 slices as follows [2, 5, 3, 5, 3, 7, 2, 4, 6, 12, 1, 1, 5, 18, 9]. 22 percent of accesses are in the largest equivalence class. The 45 initializations are split as follows [2, 5, 3, 5, 3, 7, 2, 0, 4, 7, 1, 1, 1, 0, 4]. The 5 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 2]. [2023-11-26 11:50:21,387 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:21" (1/1) ... [2023-11-26 11:50:21,387 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:21" (1/1) ... [2023-11-26 11:50:21,431 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:21" (1/1) ... [2023-11-26 11:50:21,437 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:21" (1/1) ... [2023-11-26 11:50:21,442 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:21" (1/1) ... [2023-11-26 11:50:21,447 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:21" (1/1) ... [2023-11-26 11:50:21,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:50:21,457 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:50:21,458 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:50:21,458 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:50:21,459 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:21" (1/1) ... [2023-11-26 11:50:21,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:50:21,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:50:21,511 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:50:21,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:50:21,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-26 11:50:21,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-26 11:50:21,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-26 11:50:21,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-26 11:50:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-26 11:50:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-26 11:50:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-26 11:50:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-26 11:50:21,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-26 11:50:21,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-26 11:50:21,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-26 11:50:21,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-26 11:50:21,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-26 11:50:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-26 11:50:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-26 11:50:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:50:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2023-11-26 11:50:21,546 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2023-11-26 11:50:21,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 11:50:21,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 11:50:21,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 11:50:21,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 11:50:21,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-26 11:50:21,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-26 11:50:21,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-26 11:50:21,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-26 11:50:21,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-26 11:50:21,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-26 11:50:21,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-26 11:50:21,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-26 11:50:21,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-26 11:50:21,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-26 11:50:21,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-26 11:50:21,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:50:21,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:50:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:50:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:50:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:50:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 11:50:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 11:50:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-26 11:50:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-26 11:50:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-26 11:50:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-26 11:50:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-26 11:50:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-26 11:50:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-26 11:50:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-26 11:50:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-26 11:50:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:50:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:50:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:50:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:50:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 11:50:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 11:50:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-26 11:50:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-26 11:50:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-26 11:50:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-26 11:50:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-26 11:50:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-26 11:50:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-26 11:50:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-26 11:50:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-26 11:50:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 11:50:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 11:50:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 11:50:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 11:50:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-26 11:50:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-26 11:50:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-26 11:50:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-26 11:50:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-26 11:50:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-26 11:50:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-26 11:50:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-26 11:50:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-26 11:50:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-26 11:50:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-26 11:50:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-11-26 11:50:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:50:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:50:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:50:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:50:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 11:50:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 11:50:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-26 11:50:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-26 11:50:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-26 11:50:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-26 11:50:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-26 11:50:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-26 11:50:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-26 11:50:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-26 11:50:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-26 11:50:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2023-11-26 11:50:21,560 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2023-11-26 11:50:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:50:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:50:21,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:50:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2023-11-26 11:50:21,561 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2023-11-26 11:50:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:50:21,804 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:50:21,806 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:50:22,471 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:50:22,527 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:50:22,528 INFO L309 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-26 11:50:22,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:50:22 BoogieIcfgContainer [2023-11-26 11:50:22,529 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:50:22,533 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:50:22,533 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:50:22,536 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:50:22,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:50:20" (1/3) ... [2023-11-26 11:50:22,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613bb138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:50:22, skipping insertion in model container [2023-11-26 11:50:22,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:21" (2/3) ... [2023-11-26 11:50:22,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613bb138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:50:22, skipping insertion in model container [2023-11-26 11:50:22,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:50:22" (3/3) ... [2023-11-26 11:50:22,544 INFO L112 eAbstractionObserver]: Analyzing ICFG ofuf_2.c [2023-11-26 11:50:22,564 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:50:22,564 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:50:22,647 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:50:22,659 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;@3db81267, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:50:22,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:50:22,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 81 states have (on average 1.6790123456790123) internal successors, (136), 82 states have internal predecessors, (136), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:50:22,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-26 11:50:22,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:50:22,682 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:22,683 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:50:22,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:22,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1543518995, now seen corresponding path program 1 times [2023-11-26 11:50:22,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:22,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311410797] [2023-11-26 11:50:22,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:22,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:23,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:23,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311410797] [2023-11-26 11:50:23,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-26 11:50:23,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445936068] [2023-11-26 11:50:23,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:23,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:50:23,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:50:23,093 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:50:23,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:50:23,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:23,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:50:23,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:50:23,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-26 11:50:23,428 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:50:23,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445936068] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:23,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:23,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:23,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372751669] [2023-11-26 11:50:23,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:23,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:50:23,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:23,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:50:23,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:50:23,472 INFO L87 Difference]: Start difference. First operand has 94 states, 81 states have (on average 1.6790123456790123) internal successors, (136), 82 states have internal predecessors, (136), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:50:23,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:50:23,574 INFO L93 Difference]: Finished difference Result 185 states and 306 transitions. [2023-11-26 11:50:23,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:50:23,577 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2023-11-26 11:50:23,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:50:23,590 INFO L225 Difference]: With dead ends: 185 [2023-11-26 11:50:23,591 INFO L226 Difference]: Without dead ends: 91 [2023-11-26 11:50:23,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:50:23,607 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:50:23,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:50:23,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-26 11:50:23,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-26 11:50:23,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 79 states have (on average 1.5696202531645569) internal successors, (124), 80 states have internal predecessors, (124), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 11:50:23,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 139 transitions. [2023-11-26 11:50:23,697 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 139 transitions. Word has length 26 [2023-11-26 11:50:23,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:50:23,700 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 139 transitions. [2023-11-26 11:50:23,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:50:23,701 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 139 transitions. [2023-11-26 11:50:23,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 11:50:23,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:50:23,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:23,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:50:23,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-26 11:50:23,916 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:50:23,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:23,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1586775196, now seen corresponding path program 1 times [2023-11-26 11:50:23,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:23,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069736188] [2023-11-26 11:50:23,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:23,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:23,966 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:50:23,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1005057353] [2023-11-26 11:50:23,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:23,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:50:23,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:50:23,968 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:50:23,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:50:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:24,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:50:24,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:50:24,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:24,301 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:50:24,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:24,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069736188] [2023-11-26 11:50:24,303 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:50:24,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005057353] [2023-11-26 11:50:24,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005057353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:24,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:24,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:50:24,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278111182] [2023-11-26 11:50:24,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:24,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:24,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:24,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:24,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:24,309 INFO L87 Difference]: Start difference. First operand 91 states and 139 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:50:24,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:50:24,366 INFO L93 Difference]: Finished difference Result 91 states and 139 transitions. [2023-11-26 11:50:24,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:24,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2023-11-26 11:50:24,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:50:24,367 INFO L225 Difference]: With dead ends: 91 [2023-11-26 11:50:24,367 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 11:50:24,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:24,370 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 1 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:50:24,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 258 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:50:24,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 11:50:24,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 11:50:24,375 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) [2023-11-26 11:50:24,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 11:50:24,376 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2023-11-26 11:50:24,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:50:24,376 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:50:24,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:50:24,377 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 11:50:24,377 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 11:50:24,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:50:24,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:50:24,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:50:24,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 11:50:24,625 INFO L899 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2023-11-26 11:50:24,625 INFO L899 garLoopResultBuilder]: For program point L217-2(line 217) no Hoare annotation was computed. [2023-11-26 11:50:24,626 INFO L899 garLoopResultBuilder]: For program point L209-1(line 209) no Hoare annotation was computed. [2023-11-26 11:50:24,626 INFO L899 garLoopResultBuilder]: For program point L209-3(line 209) no Hoare annotation was computed. [2023-11-26 11:50:24,626 INFO L899 garLoopResultBuilder]: For program point L209-4(lines 209 225) no Hoare annotation was computed. [2023-11-26 11:50:24,626 INFO L899 garLoopResultBuilder]: For program point L234(line 234) no Hoare annotation was computed. [2023-11-26 11:50:24,626 INFO L899 garLoopResultBuilder]: For program point L234-2(line 234) no Hoare annotation was computed. [2023-11-26 11:50:24,626 INFO L899 garLoopResultBuilder]: For program point L234-3(line 234) no Hoare annotation was computed. [2023-11-26 11:50:24,627 INFO L899 garLoopResultBuilder]: For program point L234-5(lines 234 246) no Hoare annotation was computed. [2023-11-26 11:50:24,627 INFO L899 garLoopResultBuilder]: For program point L226-1(lines 226 233) no Hoare annotation was computed. [2023-11-26 11:50:24,627 INFO L902 garLoopResultBuilder]: At program point L226-3(lines 226 233) the Hoare annotation is: true [2023-11-26 11:50:24,627 INFO L899 garLoopResultBuilder]: For program point L226-4(lines 226 233) no Hoare annotation was computed. [2023-11-26 11:50:24,627 INFO L899 garLoopResultBuilder]: For program point L218(line 218) no Hoare annotation was computed. [2023-11-26 11:50:24,627 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 208) no Hoare annotation was computed. [2023-11-26 11:50:24,628 INFO L899 garLoopResultBuilder]: For program point L202-2(lines 194 248) no Hoare annotation was computed. [2023-11-26 11:50:24,628 INFO L899 garLoopResultBuilder]: For program point Id_MCDC_89FINAL(lines 193 248) no Hoare annotation was computed. [2023-11-26 11:50:24,628 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2023-11-26 11:50:24,628 INFO L899 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2023-11-26 11:50:24,628 INFO L899 garLoopResultBuilder]: For program point L236(lines 236 241) no Hoare annotation was computed. [2023-11-26 11:50:24,628 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 193 248) the Hoare annotation is: true [2023-11-26 11:50:24,628 INFO L899 garLoopResultBuilder]: For program point L220(line 220) no Hoare annotation was computed. [2023-11-26 11:50:24,629 INFO L899 garLoopResultBuilder]: For program point L220-2(line 220) no Hoare annotation was computed. [2023-11-26 11:50:24,629 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2023-11-26 11:50:24,629 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 207) no Hoare annotation was computed. [2023-11-26 11:50:24,629 INFO L899 garLoopResultBuilder]: For program point L229(lines 229 232) no Hoare annotation was computed. [2023-11-26 11:50:24,629 INFO L899 garLoopResultBuilder]: For program point L221(line 221) no Hoare annotation was computed. [2023-11-26 11:50:24,629 INFO L899 garLoopResultBuilder]: For program point Id_MCDC_89EXIT(lines 193 248) no Hoare annotation was computed. [2023-11-26 11:50:24,629 INFO L899 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2023-11-26 11:50:24,630 INFO L899 garLoopResultBuilder]: For program point L214-2(line 214) no Hoare annotation was computed. [2023-11-26 11:50:24,630 INFO L899 garLoopResultBuilder]: For program point L198(lines 198 201) no Hoare annotation was computed. [2023-11-26 11:50:24,630 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2023-11-26 11:50:24,630 INFO L899 garLoopResultBuilder]: For program point L215(line 215) no Hoare annotation was computed. [2023-11-26 11:50:24,630 INFO L899 garLoopResultBuilder]: For program point L461(lines 461 464) no Hoare annotation was computed. [2023-11-26 11:50:24,630 INFO L899 garLoopResultBuilder]: For program point L461-2(lines 459 466) no Hoare annotation was computed. [2023-11-26 11:50:24,630 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 295) no Hoare annotation was computed. [2023-11-26 11:50:24,631 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 269) no Hoare annotation was computed. [2023-11-26 11:50:24,631 INFO L899 garLoopResultBuilder]: For program point L288-2(lines 288 295) no Hoare annotation was computed. [2023-11-26 11:50:24,631 INFO L899 garLoopResultBuilder]: For program point L284(lines 284 287) no Hoare annotation was computed. [2023-11-26 11:50:24,631 INFO L902 garLoopResultBuilder]: At program point L272(line 272) the Hoare annotation is: true [2023-11-26 11:50:24,631 INFO L899 garLoopResultBuilder]: For program point L272-1(line 272) no Hoare annotation was computed. [2023-11-26 11:50:24,631 INFO L902 garLoopResultBuilder]: At program point L297(line 297) the Hoare annotation is: true [2023-11-26 11:50:24,632 INFO L899 garLoopResultBuilder]: For program point L297-1(line 297) no Hoare annotation was computed. [2023-11-26 11:50:24,632 INFO L899 garLoopResultBuilder]: For program point Id_MCDC_92_returnLabel#1(lines 249 279) no Hoare annotation was computed. [2023-11-26 11:50:24,632 INFO L899 garLoopResultBuilder]: For program point L463(line 463) no Hoare annotation was computed. [2023-11-26 11:50:24,632 INFO L899 garLoopResultBuilder]: For program point Id_MCDC_95EXIT(lines 280 299) no Hoare annotation was computed. [2023-11-26 11:50:24,632 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 280 299) the Hoare annotation is: true [2023-11-26 11:50:24,632 INFO L899 garLoopResultBuilder]: For program point Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION(line 463) no Hoare annotation was computed. [2023-11-26 11:50:24,633 INFO L899 garLoopResultBuilder]: For program point L261(lines 261 269) no Hoare annotation was computed. [2023-11-26 11:50:24,633 INFO L902 garLoopResultBuilder]: At program point L290(line 290) the Hoare annotation is: true [2023-11-26 11:50:24,633 INFO L899 garLoopResultBuilder]: For program point L290-1(line 290) no Hoare annotation was computed. [2023-11-26 11:50:24,633 INFO L902 garLoopResultBuilder]: At program point L270-1(lines 270 277) the Hoare annotation is: true [2023-11-26 11:50:24,633 INFO L899 garLoopResultBuilder]: For program point L270-2(lines 270 277) no Hoare annotation was computed. [2023-11-26 11:50:24,633 INFO L899 garLoopResultBuilder]: For program point Id_MCDC_95FINAL(lines 280 299) no Hoare annotation was computed. [2023-11-26 11:50:24,633 INFO L899 garLoopResultBuilder]: For program point avoid_zeroEXIT(lines 9 15) no Hoare annotation was computed. [2023-11-26 11:50:24,634 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 14) no Hoare annotation was computed. [2023-11-26 11:50:24,634 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 9 15) the Hoare annotation is: true [2023-11-26 11:50:24,634 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 9 15) no Hoare annotation was computed. [2023-11-26 11:50:24,634 INFO L899 garLoopResultBuilder]: For program point L316(line 316) no Hoare annotation was computed. [2023-11-26 11:50:24,634 INFO L899 garLoopResultBuilder]: For program point L316-2(line 316) no Hoare annotation was computed. [2023-11-26 11:50:24,634 INFO L899 garLoopResultBuilder]: For program point L316-3(line 316) no Hoare annotation was computed. [2023-11-26 11:50:24,634 INFO L899 garLoopResultBuilder]: For program point L316-5(lines 316 328) no Hoare annotation was computed. [2023-11-26 11:50:24,635 INFO L899 garLoopResultBuilder]: For program point L308-1(lines 308 315) no Hoare annotation was computed. [2023-11-26 11:50:24,635 INFO L902 garLoopResultBuilder]: At program point L308-3(lines 308 315) the Hoare annotation is: true [2023-11-26 11:50:24,635 INFO L899 garLoopResultBuilder]: For program point L308-4(lines 308 315) no Hoare annotation was computed. [2023-11-26 11:50:24,635 INFO L902 garLoopResultBuilder]: At program point L358-3(lines 358 396) the Hoare annotation is: true [2023-11-26 11:50:24,635 INFO L899 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2023-11-26 11:50:24,635 INFO L899 garLoopResultBuilder]: For program point L408-2(lines 408 415) no Hoare annotation was computed. [2023-11-26 11:50:24,635 INFO L899 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2023-11-26 11:50:24,636 INFO L899 garLoopResultBuilder]: For program point L318(lines 318 323) no Hoare annotation was computed. [2023-11-26 11:50:24,636 INFO L902 garLoopResultBuilder]: At program point L376-3(lines 376 393) the Hoare annotation is: true [2023-11-26 11:50:24,636 INFO L899 garLoopResultBuilder]: For program point L376-4(lines 376 393) no Hoare annotation was computed. [2023-11-26 11:50:24,636 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 11:50:24,636 INFO L899 garLoopResultBuilder]: For program point Id_MCDC_96_returnLabel#1(lines 300 330) no Hoare annotation was computed. [2023-11-26 11:50:24,636 INFO L902 garLoopResultBuilder]: At program point L352-3(lines 352 355) the Hoare annotation is: true [2023-11-26 11:50:24,637 INFO L899 garLoopResultBuilder]: For program point L352-4(lines 332 399) no Hoare annotation was computed. [2023-11-26 11:50:24,637 INFO L899 garLoopResultBuilder]: For program point L311(lines 311 314) no Hoare annotation was computed. [2023-11-26 11:50:24,637 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 458) no Hoare annotation was computed. [2023-11-26 11:50:24,637 INFO L902 garLoopResultBuilder]: At program point L361(line 361) the Hoare annotation is: true [2023-11-26 11:50:24,637 INFO L899 garLoopResultBuilder]: For program point L361-1(lines 361 364) no Hoare annotation was computed. [2023-11-26 11:50:24,637 INFO L899 garLoopResultBuilder]: For program point L452(lines 452 455) no Hoare annotation was computed. [2023-11-26 11:50:24,638 INFO L902 garLoopResultBuilder]: At program point L378(line 378) the Hoare annotation is: true [2023-11-26 11:50:24,638 INFO L899 garLoopResultBuilder]: For program point L378-1(lines 378 381) no Hoare annotation was computed. [2023-11-26 11:50:24,638 INFO L899 garLoopResultBuilder]: For program point L304(lines 304 307) no Hoare annotation was computed. [2023-11-26 11:50:24,638 INFO L902 garLoopResultBuilder]: At program point L371(line 371) the Hoare annotation is: true [2023-11-26 11:50:24,638 INFO L899 garLoopResultBuilder]: For program point L371-1(lines 371 374) no Hoare annotation was computed. [2023-11-26 11:50:24,638 INFO L899 garLoopResultBuilder]: For program point Id_MCDC_97_returnLabel#1(lines 331 399) no Hoare annotation was computed. [2023-11-26 11:50:24,638 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 11:50:24,639 INFO L899 garLoopResultBuilder]: For program point L389(lines 389 392) no Hoare annotation was computed. [2023-11-26 11:50:24,639 INFO L899 garLoopResultBuilder]: For program point L356(lines 356 397) no Hoare annotation was computed. [2023-11-26 11:50:24,639 INFO L899 garLoopResultBuilder]: For program point L406-2(lines 406 416) no Hoare annotation was computed. [2023-11-26 11:50:24,639 INFO L902 garLoopResultBuilder]: At program point L406-3(lines 406 416) the Hoare annotation is: true [2023-11-26 11:50:24,639 INFO L902 garLoopResultBuilder]: At program point L406-4(lines 406 416) the Hoare annotation is: true [2023-11-26 11:50:24,639 INFO L902 garLoopResultBuilder]: At program point L365(line 365) the Hoare annotation is: true [2023-11-26 11:50:24,640 INFO L899 garLoopResultBuilder]: For program point L365-1(lines 365 368) no Hoare annotation was computed. [2023-11-26 11:50:24,644 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 11:50:24,646 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:50:24,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:50:24 BoogieIcfgContainer [2023-11-26 11:50:24,661 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:50:24,662 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:50:24,662 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:50:24,662 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:50:24,662 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:50:22" (3/4) ... [2023-11-26 11:50:24,664 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:50:24,668 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_89 [2023-11-26 11:50:24,669 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure avoid_zero [2023-11-26 11:50:24,669 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_95 [2023-11-26 11:50:24,680 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 57 nodes and edges [2023-11-26 11:50:24,682 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-26 11:50:24,683 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-26 11:50:24,684 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 11:50:24,685 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:50:24,686 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:50:24,829 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:50:24,830 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:50:24,830 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:50:24,831 INFO L158 Benchmark]: Toolchain (without parser) took 4352.00ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 90.5MB in the beginning and 111.6MB in the end (delta: -21.1MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2023-11-26 11:50:24,831 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 94.4MB. Free memory was 67.3MB in the beginning and 67.2MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:50:24,832 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.57ms. Allocated memory is still 134.2MB. Free memory was 90.4MB in the beginning and 72.1MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 11:50:24,832 INFO L158 Benchmark]: Boogie Procedure Inliner took 182.81ms. Allocated memory is still 134.2MB. Free memory was 72.1MB in the beginning and 106.1MB in the end (delta: -33.9MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2023-11-26 11:50:24,832 INFO L158 Benchmark]: Boogie Preprocessor took 183.88ms. Allocated memory is still 134.2MB. Free memory was 106.1MB in the beginning and 99.0MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 11:50:24,833 INFO L158 Benchmark]: RCFGBuilder took 1071.99ms. Allocated memory is still 134.2MB. Free memory was 99.0MB in the beginning and 52.8MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-26 11:50:24,833 INFO L158 Benchmark]: TraceAbstraction took 2128.35ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 51.5MB in the beginning and 122.1MB in the end (delta: -70.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:50:24,833 INFO L158 Benchmark]: Witness Printer took 168.66ms. Allocated memory is still 176.2MB. Free memory was 122.1MB in the beginning and 111.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 11:50:24,836 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 94.4MB. Free memory was 67.3MB in the beginning and 67.2MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.57ms. Allocated memory is still 134.2MB. Free memory was 90.4MB in the beginning and 72.1MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 182.81ms. Allocated memory is still 134.2MB. Free memory was 72.1MB in the beginning and 106.1MB in the end (delta: -33.9MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 183.88ms. Allocated memory is still 134.2MB. Free memory was 106.1MB in the beginning and 99.0MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1071.99ms. Allocated memory is still 134.2MB. Free memory was 99.0MB in the beginning and 52.8MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2128.35ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 51.5MB in the beginning and 122.1MB in the end (delta: -70.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 168.66ms. Allocated memory is still 176.2MB. Free memory was 122.1MB in the beginning and 111.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. 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: 463]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 393 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 128 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 265 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 50 PreInvPairs, 65 NumberOfFragments, 18 HoareAnnotationTreeSize, 50 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 1 NumberOfNonLiveVariables, 762 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 3/3 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 1 specifications checked. All of them hold - InvariantResult [Line: 406]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 308]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 270]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 358]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 376]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-26 11:50:24,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f31b0993-1edc-4f35-b4ad-c2b21ce24154/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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