./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1210d8db9779caa2b34faedb9da4e6c42e2b8376c95e81a461341238221703f5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:32:16,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:32:16,494 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:32:16,504 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:32:16,505 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:32:16,553 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:32:16,554 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:32:16,554 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:32:16,555 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:32:16,560 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:32:16,561 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:32:16,562 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:32:16,563 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:32:16,565 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:32:16,565 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:32:16,566 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:32:16,566 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:32:16,567 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:32:16,567 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:32:16,568 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:32:16,568 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:32:16,569 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:32:16,570 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:32:16,571 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:32:16,571 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:32:16,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:32:16,572 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:32:16,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:32:16,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:32:16,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:32:16,575 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:32:16,575 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:32:16,576 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:32:16,576 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:32:16,576 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:32:16,577 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:32:16,577 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:32:16,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:16,578 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:32:16,578 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:32:16,578 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:32:16,579 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:32:16,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:32:16,579 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:32:16,580 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:32:16,580 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:32:16,581 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:32:16,581 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1210d8db9779caa2b34faedb9da4e6c42e2b8376c95e81a461341238221703f5 [2023-11-23 21:32:16,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:32:16,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:32:16,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:32:16,937 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:32:16,937 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:32:16,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i [2023-11-23 21:32:20,180 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:32:20,460 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:32:20,460 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i [2023-11-23 21:32:20,477 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/data/caa470c56/66517df276e14edeb60cd73f67765a60/FLAG1b37bcaa7 [2023-11-23 21:32:20,495 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/data/caa470c56/66517df276e14edeb60cd73f67765a60 [2023-11-23 21:32:20,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:32:20,500 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:32:20,501 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:20,502 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:32:20,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:32:20,514 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:20" (1/1) ... [2023-11-23 21:32:20,515 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f529774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:20, skipping insertion in model container [2023-11-23 21:32:20,515 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:20" (1/1) ... [2023-11-23 21:32:20,550 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:32:20,735 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_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i[913,926] [2023-11-23 21:32:20,800 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:20,814 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:32:20,828 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_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i[913,926] [2023-11-23 21:32:20,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:20,886 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:32:20,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:20 WrapperNode [2023-11-23 21:32:20,887 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:20,888 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:20,888 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:32:20,888 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:32:20,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:20" (1/1) ... [2023-11-23 21:32:20,908 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:20" (1/1) ... [2023-11-23 21:32:20,972 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 194 [2023-11-23 21:32:20,972 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:20,973 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:32:20,973 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:32:20,973 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:32:20,984 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:20" (1/1) ... [2023-11-23 21:32:20,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:20" (1/1) ... [2023-11-23 21:32:20,989 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:20" (1/1) ... [2023-11-23 21:32:20,990 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:20" (1/1) ... [2023-11-23 21:32:21,005 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:20" (1/1) ... [2023-11-23 21:32:21,011 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:20" (1/1) ... [2023-11-23 21:32:21,019 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:20" (1/1) ... [2023-11-23 21:32:21,036 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:20" (1/1) ... [2023-11-23 21:32:21,043 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:32:21,054 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:32:21,054 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:32:21,055 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:32:21,056 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:20" (1/1) ... [2023-11-23 21:32:21,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:21,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:32:21,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:32:21,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:32:21,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:32:21,151 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:32:21,151 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:32:21,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:32:21,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:32:21,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:32:21,282 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:32:21,284 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:32:21,893 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:32:22,360 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:32:22,360 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:32:22,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:22 BoogieIcfgContainer [2023-11-23 21:32:22,363 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:32:22,367 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:32:22,368 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:32:22,372 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:32:22,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:32:20" (1/3) ... [2023-11-23 21:32:22,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19488d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:22, skipping insertion in model container [2023-11-23 21:32:22,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:20" (2/3) ... [2023-11-23 21:32:22,379 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19488d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:22, skipping insertion in model container [2023-11-23 21:32:22,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:22" (3/3) ... [2023-11-23 21:32:22,381 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-34.i [2023-11-23 21:32:22,409 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:32:22,409 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:32:22,468 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:32:22,477 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@20a87149, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:32:22,477 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:32:22,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-23 21:32:22,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-23 21:32:22,498 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:22,502 INFO L195 NwaCegarLoop]: trace histogram [27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:22,503 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:22,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:22,511 INFO L85 PathProgramCache]: Analyzing trace with hash 16313246, now seen corresponding path program 1 times [2023-11-23 21:32:22,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:22,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769566111] [2023-11-23 21:32:22,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:22,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:22,792 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:32:22,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2039749980] [2023-11-23 21:32:22,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:22,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:32:22,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:32:22,803 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:32:22,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:32:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:32:23,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:32:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:32:24,065 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:32:24,067 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:32:24,069 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:32:24,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:32:24,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:32:24,286 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:32:24,290 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:32:24,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:32:24 BoogieIcfgContainer [2023-11-23 21:32:24,467 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:32:24,468 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:32:24,468 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:32:24,469 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:32:24,469 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:22" (3/4) ... [2023-11-23 21:32:24,472 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:32:24,474 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:32:24,475 INFO L158 Benchmark]: Toolchain (without parser) took 3975.17ms. Allocated memory is still 180.4MB. Free memory was 134.0MB in the beginning and 136.5MB in the end (delta: -2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:32:24,476 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:32:24,476 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.57ms. Allocated memory is still 180.4MB. Free memory was 134.0MB in the beginning and 119.9MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:32:24,477 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.69ms. Allocated memory is still 180.4MB. Free memory was 119.9MB in the beginning and 115.2MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:32:24,478 INFO L158 Benchmark]: Boogie Preprocessor took 80.08ms. Allocated memory is still 180.4MB. Free memory was 115.2MB in the beginning and 113.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:32:24,479 INFO L158 Benchmark]: RCFGBuilder took 1309.41ms. Allocated memory is still 180.4MB. Free memory was 113.1MB in the beginning and 104.7MB in the end (delta: 8.4MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2023-11-23 21:32:24,480 INFO L158 Benchmark]: TraceAbstraction took 2100.19ms. Allocated memory is still 180.4MB. Free memory was 103.8MB in the beginning and 137.5MB in the end (delta: -33.7MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2023-11-23 21:32:24,481 INFO L158 Benchmark]: Witness Printer took 5.65ms. Allocated memory is still 180.4MB. Free memory was 137.5MB in the beginning and 136.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:32:24,485 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.57ms. Allocated memory is still 180.4MB. Free memory was 134.0MB in the beginning and 119.9MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.69ms. Allocated memory is still 180.4MB. Free memory was 119.9MB in the beginning and 115.2MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.08ms. Allocated memory is still 180.4MB. Free memory was 115.2MB in the beginning and 113.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1309.41ms. Allocated memory is still 180.4MB. Free memory was 113.1MB in the beginning and 104.7MB in the end (delta: 8.4MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2100.19ms. Allocated memory is still 180.4MB. Free memory was 103.8MB in the beginning and 137.5MB in the end (delta: -33.7MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. * Witness Printer took 5.65ms. Allocated memory is still 180.4MB. Free memory was 137.5MB in the beginning and 136.5MB in the end (delta: 1.0MB). There was no memory consumed. 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 66. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 128; [L23] unsigned char var_1_2 = 1; [L24] unsigned short int var_1_3 = 256; [L25] unsigned short int var_1_4 = 16; [L26] unsigned short int var_1_5 = 64; [L27] unsigned short int var_1_6 = 8; [L28] unsigned long int var_1_7 = 16; [L29] unsigned long int var_1_8 = 16; [L30] unsigned long int var_1_9 = 32; [L31] unsigned char var_1_10 = 16; [L32] unsigned char var_1_11 = 8; [L33] unsigned char var_1_12 = 64; [L34] unsigned char var_1_13 = 1; [L35] signed long int var_1_14 = -200; [L36] signed short int var_1_15 = 0; [L37] signed short int var_1_16 = 24637; [L38] signed short int var_1_17 = 100; [L39] unsigned char var_1_18 = 1; [L40] unsigned char var_1_19 = 1; [L41] signed long int var_1_20 = 10; [L42] signed long int var_1_21 = -256; [L136] isInitial = 1 [L137] FCALL initially() [L138] COND TRUE 1 [L139] FCALL updateLastVariables() [L140] CALL updateVariables() [L88] var_1_2 = __VERIFIER_nondet_uchar() [L89] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_3=256, var_1_4=16, var_1_5=64, var_1_6=8, var_1_7=16, var_1_8=16, var_1_9=32] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_3=256, var_1_4=16, var_1_5=64, var_1_6=8, var_1_7=16, var_1_8=16, var_1_9=32] [L90] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_3=256, var_1_4=16, var_1_5=64, var_1_6=8, var_1_7=16, var_1_8=16, var_1_9=32] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_3=256, var_1_4=16, var_1_5=64, var_1_6=8, var_1_7=16, var_1_8=16, var_1_9=32] [L91] var_1_3 = __VERIFIER_nondet_ushort() [L92] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_4=16, var_1_5=64, var_1_6=8, var_1_7=16, var_1_8=16, var_1_9=32] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_4=16, var_1_5=64, var_1_6=8, var_1_7=16, var_1_8=16, var_1_9=32] [L93] CALL assume_abort_if_not(var_1_3 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_4=16, var_1_5=64, var_1_6=8, var_1_7=16, var_1_8=16, var_1_9=32] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_3 <= 65535) VAL [isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_4=16, var_1_5=64, var_1_6=8, var_1_7=16, var_1_8=16, var_1_9=32] [L94] var_1_4 = __VERIFIER_nondet_ushort() [L95] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_5=64, var_1_6=8, var_1_7=16, var_1_8=16, var_1_9=32] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_5=64, var_1_6=8, var_1_7=16, var_1_8=16, var_1_9=32] [L96] CALL assume_abort_if_not(var_1_4 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_5=64, var_1_6=8, var_1_7=16, var_1_8=16, var_1_9=32] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_4 <= 65535) VAL [isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_5=64, var_1_6=8, var_1_7=16, var_1_8=16, var_1_9=32] [L97] var_1_5 = __VERIFIER_nondet_ushort() [L98] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_6=8, var_1_7=16, var_1_8=16, var_1_9=32] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_6=8, var_1_7=16, var_1_8=16, var_1_9=32] [L99] CALL assume_abort_if_not(var_1_5 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_6=8, var_1_7=16, var_1_8=16, var_1_9=32] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_5 <= 65535) VAL [isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_6=8, var_1_7=16, var_1_8=16, var_1_9=32] [L100] var_1_6 = __VERIFIER_nondet_ushort() [L101] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_8=16, var_1_9=32] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_8=16, var_1_9=32] [L102] CALL assume_abort_if_not(var_1_6 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_8=16, var_1_9=32] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(var_1_6 <= 65535) VAL [isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_8=16, var_1_9=32] [L103] var_1_8 = __VERIFIER_nondet_ulong() [L104] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=32] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=32] [L105] CALL assume_abort_if_not(var_1_8 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=32] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(var_1_8 <= 4294967295) VAL [isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=32] [L106] var_1_9 = __VERIFIER_nondet_ulong() [L107] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16] [L108] CALL assume_abort_if_not(var_1_9 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_9 <= 4294967295) VAL [isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16] [L109] CALL assume_abort_if_not(var_1_9 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_9 != 0) VAL [isInitial=1, var_1_10=16, var_1_11=8, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L110] var_1_11 = __VERIFIER_nondet_uchar() [L111] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=16, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L112] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L113] var_1_12 = __VERIFIER_nondet_uchar() [L114] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=100, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=16, var_1_11=100, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L115] CALL assume_abort_if_not(var_1_12 <= 64) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not(var_1_12 <= 64) VAL [isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_13=1, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L116] var_1_13 = __VERIFIER_nondet_uchar() [L117] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L118] CALL assume_abort_if_not(var_1_13 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_13=34, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not(var_1_13 <= 63) VAL [isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_13=34, var_1_14=-200, var_1_15=0, var_1_16=24637, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L119] var_1_16 = __VERIFIER_nondet_short() [L120] CALL assume_abort_if_not(var_1_16 >= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_13=34, var_1_14=-200, var_1_15=0, var_1_16=16383, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not(var_1_16 >= 16383) VAL [isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_13=34, var_1_14=-200, var_1_15=0, var_1_16=16383, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L121] CALL assume_abort_if_not(var_1_16 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_13=34, var_1_14=-200, var_1_15=0, var_1_16=16383, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L20] COND FALSE !(!cond) [L121] RET assume_abort_if_not(var_1_16 <= 32766) VAL [isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_13=34, var_1_14=-200, var_1_15=0, var_1_16=16383, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L122] var_1_19 = __VERIFIER_nondet_uchar() [L123] CALL assume_abort_if_not(var_1_19 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_13=34, var_1_14=-200, var_1_15=0, var_1_16=16383, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L20] COND FALSE !(!cond) [L123] RET assume_abort_if_not(var_1_19 >= 1) VAL [isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_13=34, var_1_14=-200, var_1_15=0, var_1_16=16383, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L124] CALL assume_abort_if_not(var_1_19 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_13=34, var_1_14=-200, var_1_15=0, var_1_16=16383, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L20] COND FALSE !(!cond) [L124] RET assume_abort_if_not(var_1_19 <= 1) VAL [isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_13=34, var_1_14=-200, var_1_15=0, var_1_16=16383, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-256, var_1_2=1, var_1_7=16, var_1_9=33] [L125] var_1_21 = __VERIFIER_nondet_long() [L126] CALL assume_abort_if_not(var_1_21 >= -2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_13=34, var_1_14=-200, var_1_15=0, var_1_16=16383, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-2147483647, var_1_2=1, var_1_7=16, var_1_9=33] [L20] COND FALSE !(!cond) [L126] RET assume_abort_if_not(var_1_21 >= -2147483647) VAL [isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_13=34, var_1_14=-200, var_1_15=0, var_1_16=16383, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-2147483647, var_1_2=1, var_1_7=16, var_1_9=33] [L127] CALL assume_abort_if_not(var_1_21 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_13=34, var_1_14=-200, var_1_15=0, var_1_16=16383, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-2147483647, var_1_2=1, var_1_7=16, var_1_9=33] [L20] COND FALSE !(!cond) [L127] RET assume_abort_if_not(var_1_21 <= 2147483646) VAL [isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_13=34, var_1_14=-200, var_1_15=0, var_1_16=16383, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=128, var_1_20=10, var_1_21=-2147483647, var_1_2=1, var_1_7=16, var_1_9=33] [L140] RET updateVariables() [L141] CALL step() [L46] COND TRUE \read(var_1_2) [L47] COND TRUE var_1_3 <= ((var_1_4 + var_1_5) + var_1_6) [L48] var_1_1 = ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) [L51] COND TRUE var_1_6 == var_1_3 [L52] COND TRUE (var_1_8 + var_1_4) > (var_1_1 % var_1_9) [L53] var_1_7 = var_1_3 [L58] COND FALSE !(((- var_1_7) + var_1_3) >= var_1_9) [L61] COND TRUE \read(var_1_2) [L62] var_1_14 = var_1_12 [L66] EXPR var_1_4 | var_1_9 [L66] EXPR ((var_1_7) > ((var_1_4 | var_1_9))) ? (var_1_7) : ((var_1_4 | var_1_9)) [L66] COND FALSE !(((((var_1_7) > ((var_1_4 | var_1_9))) ? (var_1_7) : ((var_1_4 | var_1_9)))) > var_1_13) [L69] var_1_15 = (var_1_13 - ((((var_1_10) > ((var_1_16 - var_1_11))) ? (var_1_10) : ((var_1_16 - var_1_11))))) [L71] COND FALSE !(var_1_13 > var_1_7) [L82] COND FALSE !(var_1_3 > var_1_12) [L85] var_1_20 = var_1_21 [L141] RET step() [L142] CALL, EXPR property() [L132] EXPR ((((var_1_2 ? ((var_1_3 <= ((var_1_4 + var_1_5) + var_1_6)) ? (var_1_1 == ((signed long int) ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))) : 1) : 1) && ((var_1_6 == var_1_3) ? (((var_1_8 + var_1_4) > (var_1_1 % var_1_9)) ? (var_1_7 == ((unsigned long int) var_1_3)) : (var_1_7 == ((unsigned long int) var_1_4))) : 1)) && ((((- var_1_7) + var_1_3) >= var_1_9) ? (var_1_10 == ((unsigned char) (var_1_11 + (var_1_12 + var_1_13)))) : 1)) && (var_1_2 ? (var_1_14 == ((signed long int) var_1_12)) : (var_1_14 == ((signed long int) 64)))) && ((((((var_1_7) > ((var_1_4 | var_1_9))) ? (var_1_7) : ((var_1_4 | var_1_9)))) > var_1_13) ? (var_1_15 == ((signed short int) (((((var_1_13 + var_1_11)) > (var_1_12)) ? ((var_1_13 + var_1_11)) : (var_1_12))))) : (var_1_15 == ((signed short int) (var_1_13 - ((((var_1_10) > ((var_1_16 - var_1_11))) ? (var_1_10) : ((var_1_16 - var_1_11)))))))) [L132] EXPR var_1_4 | var_1_9 [L132] EXPR ((var_1_7) > ((var_1_4 | var_1_9))) ? (var_1_7) : ((var_1_4 | var_1_9)) [L132] EXPR var_1_4 | var_1_9 [L132] EXPR ((var_1_7) > ((var_1_4 | var_1_9))) ? (var_1_7) : ((var_1_4 | var_1_9)) [L132] EXPR ((((var_1_2 ? ((var_1_3 <= ((var_1_4 + var_1_5) + var_1_6)) ? (var_1_1 == ((signed long int) ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))) : 1) : 1) && ((var_1_6 == var_1_3) ? (((var_1_8 + var_1_4) > (var_1_1 % var_1_9)) ? (var_1_7 == ((unsigned long int) var_1_3)) : (var_1_7 == ((unsigned long int) var_1_4))) : 1)) && ((((- var_1_7) + var_1_3) >= var_1_9) ? (var_1_10 == ((unsigned char) (var_1_11 + (var_1_12 + var_1_13)))) : 1)) && (var_1_2 ? (var_1_14 == ((signed long int) var_1_12)) : (var_1_14 == ((signed long int) 64)))) && ((((((var_1_7) > ((var_1_4 | var_1_9))) ? (var_1_7) : ((var_1_4 | var_1_9)))) > var_1_13) ? (var_1_15 == ((signed short int) (((((var_1_13 + var_1_11)) > (var_1_12)) ? ((var_1_13 + var_1_11)) : (var_1_12))))) : (var_1_15 == ((signed short int) (var_1_13 - ((((var_1_10) > ((var_1_16 - var_1_11))) ? (var_1_10) : ((var_1_16 - var_1_11)))))))) [L132-L133] return (((((((var_1_2 ? ((var_1_3 <= ((var_1_4 + var_1_5) + var_1_6)) ? (var_1_1 == ((signed long int) ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))) : 1) : 1) && ((var_1_6 == var_1_3) ? (((var_1_8 + var_1_4) > (var_1_1 % var_1_9)) ? (var_1_7 == ((unsigned long int) var_1_3)) : (var_1_7 == ((unsigned long int) var_1_4))) : 1)) && ((((- var_1_7) + var_1_3) >= var_1_9) ? (var_1_10 == ((unsigned char) (var_1_11 + (var_1_12 + var_1_13)))) : 1)) && (var_1_2 ? (var_1_14 == ((signed long int) var_1_12)) : (var_1_14 == ((signed long int) 64)))) && ((((((var_1_7) > ((var_1_4 | var_1_9))) ? (var_1_7) : ((var_1_4 | var_1_9)))) > var_1_13) ? (var_1_15 == ((signed short int) (((((var_1_13 + var_1_11)) > (var_1_12)) ? ((var_1_13 + var_1_11)) : (var_1_12))))) : (var_1_15 == ((signed short int) (var_1_13 - ((((var_1_10) > ((var_1_16 - var_1_11))) ? (var_1_10) : ((var_1_16 - var_1_11))))))))) && ((var_1_13 > var_1_7) ? ((var_1_7 <= 32u) ? ((var_1_4 <= var_1_5) ? (var_1_17 == ((signed short int) var_1_16)) : (var_1_17 == ((signed short int) -50))) : (var_1_17 == ((signed short int) var_1_11))) : 1)) && ((var_1_3 > var_1_12) ? (var_1_18 == ((unsigned char) (! var_1_19))) : 1)) && (var_1_20 == ((signed long int) var_1_21)) ; [L142] RET, EXPR property() [L142] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_13=34, var_1_14=64, var_1_15=-16249, var_1_16=16383, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=0, var_1_20=-2147483647, var_1_21=-2147483647, var_1_2=1, var_1_3=34, var_1_4=32, var_1_5=0, var_1_6=34, var_1_7=34, var_1_8=4294967265, var_1_9=33] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=16, var_1_11=100, var_1_12=64, var_1_13=34, var_1_14=64, var_1_15=-16249, var_1_16=16383, var_1_17=100, var_1_18=1, var_1_19=1, var_1_1=0, var_1_20=-2147483647, var_1_21=-2147483647, var_1_2=1, var_1_3=34, var_1_4=32, var_1_5=0, var_1_6=34, var_1_7=34, var_1_8=4294967265, var_1_9=33] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 1, TraceHistogramMax: 27, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:32:24,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1210d8db9779caa2b34faedb9da4e6c42e2b8376c95e81a461341238221703f5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:32:27,201 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:32:27,338 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:32:27,352 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:32:27,353 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:32:27,411 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:32:27,412 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:32:27,412 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:32:27,414 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:32:27,419 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:32:27,420 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:32:27,420 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:32:27,420 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:32:27,422 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:32:27,423 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:32:27,423 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:32:27,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:32:27,425 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:32:27,425 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:32:27,427 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:32:27,427 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:32:27,428 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:32:27,428 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:32:27,429 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:32:27,429 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:32:27,430 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:32:27,430 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:32:27,430 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:32:27,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:32:27,431 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:32:27,433 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:32:27,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:32:27,433 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:32:27,434 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:32:27,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:27,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:32:27,435 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:32:27,435 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:32:27,435 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:32:27,436 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:32:27,437 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:32:27,437 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:32:27,437 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:32:27,437 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:32:27,438 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1210d8db9779caa2b34faedb9da4e6c42e2b8376c95e81a461341238221703f5 [2023-11-23 21:32:27,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:32:27,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:32:27,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:32:27,885 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:32:27,886 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:32:27,887 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i [2023-11-23 21:32:31,242 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:32:31,579 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:32:31,580 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i [2023-11-23 21:32:31,594 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/data/ed200048b/6b9ba53d23994642950089617e642fbc/FLAG4e4cda33d [2023-11-23 21:32:31,610 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/data/ed200048b/6b9ba53d23994642950089617e642fbc [2023-11-23 21:32:31,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:32:31,615 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:32:31,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:31,617 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:32:31,622 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:32:31,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:31" (1/1) ... [2023-11-23 21:32:31,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6deb2970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:31, skipping insertion in model container [2023-11-23 21:32:31,625 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:31" (1/1) ... [2023-11-23 21:32:31,657 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:32:31,843 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_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i[913,926] [2023-11-23 21:32:31,901 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:31,920 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:32:31,934 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_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i[913,926] [2023-11-23 21:32:31,969 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:31,990 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:32:31,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:31 WrapperNode [2023-11-23 21:32:31,991 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:31,993 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:31,993 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:32:31,993 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:32:32,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:31" (1/1) ... [2023-11-23 21:32:32,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:31" (1/1) ... [2023-11-23 21:32:32,054 INFO L138 Inliner]: procedures = 27, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 145 [2023-11-23 21:32:32,055 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:32,056 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:32:32,056 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:32:32,056 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:32:32,067 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:31" (1/1) ... [2023-11-23 21:32:32,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:31" (1/1) ... [2023-11-23 21:32:32,090 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:31" (1/1) ... [2023-11-23 21:32:32,090 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:31" (1/1) ... [2023-11-23 21:32:32,117 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:31" (1/1) ... [2023-11-23 21:32:32,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:31" (1/1) ... [2023-11-23 21:32:32,137 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:31" (1/1) ... [2023-11-23 21:32:32,155 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:31" (1/1) ... [2023-11-23 21:32:32,160 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:32:32,161 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:32:32,161 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:32:32,161 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:32:32,162 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:31" (1/1) ... [2023-11-23 21:32:32,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:32,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:32:32,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:32:32,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:32:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:32:32,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:32:32,287 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:32:32,287 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:32:32,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:32:32,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:32:32,425 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:32:32,430 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:32:32,931 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:32:33,029 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:32:33,029 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:32:33,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:33 BoogieIcfgContainer [2023-11-23 21:32:33,030 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:32:33,033 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:32:33,034 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:32:33,038 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:32:33,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:32:31" (1/3) ... [2023-11-23 21:32:33,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45327628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:33, skipping insertion in model container [2023-11-23 21:32:33,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:31" (2/3) ... [2023-11-23 21:32:33,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45327628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:33, skipping insertion in model container [2023-11-23 21:32:33,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:33" (3/3) ... [2023-11-23 21:32:33,043 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-34.i [2023-11-23 21:32:33,068 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:32:33,068 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:32:33,137 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:32:33,145 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@36effc48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:32:33,145 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:32:33,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 35 states have internal predecessors, (50), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-23 21:32:33,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-23 21:32:33,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:33,172 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:33,173 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:33,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:33,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1624047929, now seen corresponding path program 1 times [2023-11-23 21:32:33,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:32:33,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [344083435] [2023-11-23 21:32:33,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:33,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:32:33,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:32:33,200 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:32:33,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:32:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:33,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:32:33,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:32:33,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 724 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2023-11-23 21:32:33,671 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:32:33,672 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:32:33,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [344083435] [2023-11-23 21:32:33,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [344083435] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:33,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:33,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:32:33,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130782375] [2023-11-23 21:32:33,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:33,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:32:33,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:32:33,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:32:33,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:32:33,730 INFO L87 Difference]: Start difference. First operand has 64 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 35 states have internal predecessors, (50), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-23 21:32:33,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:33,827 INFO L93 Difference]: Finished difference Result 125 states and 233 transitions. [2023-11-23 21:32:33,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:32:33,834 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 160 [2023-11-23 21:32:33,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:33,846 INFO L225 Difference]: With dead ends: 125 [2023-11-23 21:32:33,846 INFO L226 Difference]: Without dead ends: 62 [2023-11-23 21:32:33,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:32:33,857 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:33,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:32:33,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-23 21:32:33,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-11-23 21:32:33,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 33 states have internal predecessors, (45), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-23 21:32:33,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 99 transitions. [2023-11-23 21:32:33,947 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 99 transitions. Word has length 160 [2023-11-23 21:32:33,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:33,950 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 99 transitions. [2023-11-23 21:32:33,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-23 21:32:33,951 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 99 transitions. [2023-11-23 21:32:33,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-23 21:32:33,965 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:33,965 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:33,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-23 21:32:34,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:32:34,171 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:34,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:34,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1525156805, now seen corresponding path program 1 times [2023-11-23 21:32:34,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:32:34,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752061302] [2023-11-23 21:32:34,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:34,178 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:32:34,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:32:34,180 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:32:34,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:32:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:34,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:32:34,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:32:34,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-11-23 21:32:34,606 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:32:34,606 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:32:34,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752061302] [2023-11-23 21:32:34,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752061302] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:34,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:34,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:32:34,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605832671] [2023-11-23 21:32:34,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:34,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:32:34,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:32:34,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:32:34,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:34,612 INFO L87 Difference]: Start difference. First operand 62 states and 99 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2023-11-23 21:32:34,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:34,758 INFO L93 Difference]: Finished difference Result 138 states and 221 transitions. [2023-11-23 21:32:34,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:32:34,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 160 [2023-11-23 21:32:34,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:34,770 INFO L225 Difference]: With dead ends: 138 [2023-11-23 21:32:34,770 INFO L226 Difference]: Without dead ends: 77 [2023-11-23 21:32:34,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:34,773 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 20 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:34,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 185 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:32:34,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-23 21:32:34,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 66. [2023-11-23 21:32:34,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 37 states have internal predecessors, (52), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-23 21:32:34,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 106 transitions. [2023-11-23 21:32:34,795 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 106 transitions. Word has length 160 [2023-11-23 21:32:34,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:34,798 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 106 transitions. [2023-11-23 21:32:34,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2023-11-23 21:32:34,799 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 106 transitions. [2023-11-23 21:32:34,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-23 21:32:34,803 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:34,803 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:34,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:32:35,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:32:35,009 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:35,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:35,010 INFO L85 PathProgramCache]: Analyzing trace with hash -994803129, now seen corresponding path program 1 times [2023-11-23 21:32:35,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:32:35,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385473671] [2023-11-23 21:32:35,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:35,012 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:32:35,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:32:35,014 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:32:35,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f05d01-5a55-4162-87c9-4f0c15d4b93e/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 21:32:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:35,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-23 21:32:35,338 INFO L285 TraceCheckSpWp]: Computing forward predicates...