./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-47.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX --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 874b8c0685149675525220fee2d5689c1d5289515348c6c05c19ae6cc8a7fb40 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:53:32,606 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:53:32,734 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:53:32,744 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:53:32,745 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:53:32,796 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:53:32,797 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:53:32,797 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:53:32,798 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:53:32,806 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:53:32,806 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:53:32,807 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:53:32,807 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:53:32,809 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:53:32,810 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:53:32,810 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:53:32,811 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:53:32,811 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:53:32,812 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:53:32,812 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:53:32,813 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:53:32,813 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:53:32,815 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:53:32,815 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:53:32,816 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:53:32,816 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:53:32,817 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:53:32,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:53:32,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:53:32,818 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:53:32,819 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:53:32,820 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:53:32,820 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:53:32,820 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:53:32,821 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:53:32,821 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:53:32,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:53:32,821 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:53:32,822 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:53:32,822 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:53:32,822 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:53:32,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:53:32,823 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:53:32,823 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:53:32,824 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:53:32,824 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_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 874b8c0685149675525220fee2d5689c1d5289515348c6c05c19ae6cc8a7fb40 [2023-11-12 00:53:33,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:53:33,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:53:33,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:53:33,159 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:53:33,160 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:53:33,162 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-47.i [2023-11-12 00:53:36,359 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:53:36,586 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:53:36,588 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-47.i [2023-11-12 00:53:36,603 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/data/9c2d37f79/c0768aa13f02418d9458b7bf592e0996/FLAGd78158e2d [2023-11-12 00:53:36,618 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/data/9c2d37f79/c0768aa13f02418d9458b7bf592e0996 [2023-11-12 00:53:36,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:53:36,623 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:53:36,624 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:53:36,625 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:53:36,630 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:53:36,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:53:36" (1/1) ... [2023-11-12 00:53:36,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32da985a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:36, skipping insertion in model container [2023-11-12 00:53:36,632 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:53:36" (1/1) ... [2023-11-12 00:53:36,666 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:53:36,814 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_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-47.i[917,930] [2023-11-12 00:53:36,889 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:53:36,901 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:53:36,912 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_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-47.i[917,930] [2023-11-12 00:53:36,954 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:53:36,973 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:53:36,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:36 WrapperNode [2023-11-12 00:53:36,973 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:53:36,975 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:53:36,975 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:53:36,975 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:53:36,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:36" (1/1) ... [2023-11-12 00:53:36,996 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:36" (1/1) ... [2023-11-12 00:53:37,056 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 224 [2023-11-12 00:53:37,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:53:37,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:53:37,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:53:37,058 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:53:37,067 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:36" (1/1) ... [2023-11-12 00:53:37,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:36" (1/1) ... [2023-11-12 00:53:37,072 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:36" (1/1) ... [2023-11-12 00:53:37,072 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:36" (1/1) ... [2023-11-12 00:53:37,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:36" (1/1) ... [2023-11-12 00:53:37,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:36" (1/1) ... [2023-11-12 00:53:37,102 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:36" (1/1) ... [2023-11-12 00:53:37,105 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:36" (1/1) ... [2023-11-12 00:53:37,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:53:37,112 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:53:37,113 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:53:37,113 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:53:37,114 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:36" (1/1) ... [2023-11-12 00:53:37,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:53:37,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:53:37,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:53:37,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:53:37,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:53:37,214 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:53:37,214 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:53:37,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:53:37,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:53:37,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:53:37,337 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:53:37,342 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:53:37,961 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:53:38,311 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:53:38,311 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:53:38,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:53:38 BoogieIcfgContainer [2023-11-12 00:53:38,315 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:53:38,317 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:53:38,317 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:53:38,321 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:53:38,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:53:36" (1/3) ... [2023-11-12 00:53:38,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@137a25b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:53:38, skipping insertion in model container [2023-11-12 00:53:38,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:36" (2/3) ... [2023-11-12 00:53:38,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@137a25b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:53:38, skipping insertion in model container [2023-11-12 00:53:38,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:53:38" (3/3) ... [2023-11-12 00:53:38,325 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-47.i [2023-11-12 00:53:38,345 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:53:38,345 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:53:38,396 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:53:38,403 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;@3a581be6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:53:38,404 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:53:38,408 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-12 00:53:38,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-12 00:53:38,421 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:38,422 INFO L195 NwaCegarLoop]: trace histogram [26, 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] [2023-11-12 00:53:38,423 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:53:38,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:38,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1628962458, now seen corresponding path program 1 times [2023-11-12 00:53:38,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:53:38,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284044791] [2023-11-12 00:53:38,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:38,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:53:38,662 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:53:38,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1626448999] [2023-11-12 00:53:38,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:38,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:53:38,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:53:38,673 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:53:38,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:53:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:53:39,023 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:53:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:53:39,208 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:53:39,213 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:53:39,214 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:53:39,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:53:39,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 00:53:39,428 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:53:39,432 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:53:39,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:53:39 BoogieIcfgContainer [2023-11-12 00:53:39,575 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:53:39,576 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:53:39,576 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:53:39,576 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:53:39,579 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:53:38" (3/4) ... [2023-11-12 00:53:39,581 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:53:39,582 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:53:39,583 INFO L158 Benchmark]: Toolchain (without parser) took 2960.45ms. Allocated memory is still 151.0MB. Free memory was 109.7MB in the beginning and 89.6MB in the end (delta: 20.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-12 00:53:39,584 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory was 66.0MB in the beginning and 65.9MB in the end (delta: 158.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:53:39,585 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.36ms. Allocated memory is still 151.0MB. Free memory was 109.5MB in the beginning and 94.2MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 00:53:39,586 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.15ms. Allocated memory is still 151.0MB. Free memory was 94.2MB in the beginning and 90.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:53:39,591 INFO L158 Benchmark]: Boogie Preprocessor took 54.41ms. Allocated memory is still 151.0MB. Free memory was 90.0MB in the beginning and 87.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:53:39,592 INFO L158 Benchmark]: RCFGBuilder took 1202.21ms. Allocated memory is still 151.0MB. Free memory was 87.3MB in the beginning and 73.0MB in the end (delta: 14.3MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2023-11-12 00:53:39,593 INFO L158 Benchmark]: TraceAbstraction took 1257.87ms. Allocated memory is still 151.0MB. Free memory was 72.0MB in the beginning and 89.6MB in the end (delta: -17.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:53:39,593 INFO L158 Benchmark]: Witness Printer took 6.73ms. Allocated memory is still 151.0MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:53:39,602 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory was 66.0MB in the beginning and 65.9MB in the end (delta: 158.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.36ms. Allocated memory is still 151.0MB. Free memory was 109.5MB in the beginning and 94.2MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.15ms. Allocated memory is still 151.0MB. Free memory was 94.2MB in the beginning and 90.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.41ms. Allocated memory is still 151.0MB. Free memory was 90.0MB in the beginning and 87.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1202.21ms. Allocated memory is still 151.0MB. Free memory was 87.3MB in the beginning and 73.0MB in the end (delta: 14.3MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1257.87ms. Allocated memory is still 151.0MB. Free memory was 72.0MB in the beginning and 89.6MB in the end (delta: -17.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.73ms. Allocated memory is still 151.0MB. Free memory is still 89.6MB. 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 someBinaryDOUBLEComparisonOperation at line 47, overapproximation of someBinaryFLOATComparisonOperation at line 60, overapproximation of bitwiseOr at line 86. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 8; [L23] double var_1_2 = 50.5; [L24] double var_1_3 = 0.875; [L25] unsigned short int var_1_4 = 49926; [L26] unsigned short int var_1_5 = 500; [L27] unsigned short int var_1_6 = 10; [L28] unsigned short int var_1_7 = 2; [L29] unsigned char var_1_8 = 64; [L30] unsigned short int var_1_9 = 5; [L31] unsigned char var_1_10 = 0; [L32] unsigned char var_1_11 = 10; [L33] float var_1_12 = 0.19999999999999996; [L34] float var_1_13 = 9.2; [L35] float var_1_14 = 5.8; [L36] float var_1_15 = 31.25; [L37] unsigned char var_1_16 = 1; [L38] unsigned char var_1_17 = 0; [L39] unsigned char var_1_18 = 0; [L40] unsigned char var_1_19 = 1; [L41] unsigned short int var_1_20 = 256; [L42] unsigned short int var_1_21 = 23544; [L43] unsigned long int var_1_22 = 64; [L140] isInitial = 1 [L141] FCALL initially() [L142] COND TRUE 1 [L143] FCALL updateLastVariables() [L144] CALL updateVariables() [L91] var_1_2 = __VERIFIER_nondet_double() [L92] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=7/8, var_1_4=49926, var_1_5=500, var_1_6=10, var_1_7=2, var_1_8=64, var_1_9=5] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=7/8, var_1_4=49926, var_1_5=500, var_1_6=10, var_1_7=2, var_1_8=64, var_1_9=5] [L93] var_1_3 = __VERIFIER_nondet_double() [L94] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49926, var_1_5=500, var_1_6=10, var_1_7=2, var_1_8=64, var_1_9=5] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49926, var_1_5=500, var_1_6=10, var_1_7=2, var_1_8=64, var_1_9=5] [L95] CALL assume_abort_if_not(var_1_3 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49926, var_1_5=500, var_1_6=10, var_1_7=2, var_1_8=64, var_1_9=5] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_3 != 0.0F) VAL [isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49926, var_1_5=500, var_1_6=10, var_1_7=2, var_1_8=64, var_1_9=5] [L96] var_1_4 = __VERIFIER_nondet_ushort() [L97] CALL assume_abort_if_not(var_1_4 >= 49150) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=500, var_1_6=10, var_1_7=2, var_1_8=64, var_1_9=5] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_4 >= 49150) VAL [isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=500, var_1_6=10, var_1_7=2, var_1_8=64, var_1_9=5] [L98] CALL assume_abort_if_not(var_1_4 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=500, var_1_6=10, var_1_7=2, var_1_8=64, var_1_9=5] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_4 <= 65534) VAL [isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=500, var_1_6=10, var_1_7=2, var_1_8=64, var_1_9=5] [L99] var_1_5 = __VERIFIER_nondet_ushort() [L100] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=10, var_1_7=2, var_1_8=64, var_1_9=5] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=10, var_1_7=2, var_1_8=64, var_1_9=5] [L101] CALL assume_abort_if_not(var_1_5 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=10, var_1_7=2, var_1_8=64, var_1_9=5] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_5 <= 16383) VAL [isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=10, var_1_7=2, var_1_8=64, var_1_9=5] [L102] var_1_6 = __VERIFIER_nondet_ushort() [L103] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=2, var_1_8=64, var_1_9=5] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=2, var_1_8=64, var_1_9=5] [L104] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=2, var_1_8=64, var_1_9=5] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=2, var_1_8=64, var_1_9=5] [L105] var_1_7 = __VERIFIER_nondet_ushort() [L106] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=5] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=5] [L107] CALL assume_abort_if_not(var_1_7 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=5] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(var_1_7 <= 65534) VAL [isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=5] [L108] var_1_9 = __VERIFIER_nondet_ushort() [L109] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L110] CALL assume_abort_if_not(var_1_9 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_9 <= 32767) VAL [isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L111] var_1_10 = __VERIFIER_nondet_uchar() [L112] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L113] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=10, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L114] var_1_11 = __VERIFIER_nondet_uchar() [L115] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L116] CALL assume_abort_if_not(var_1_11 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not(var_1_11 <= 254) VAL [isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=46/5, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L117] var_1_13 = __VERIFIER_nondet_float() [L118] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=3, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=3, var_1_14=29/5, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L119] var_1_14 = __VERIFIER_nondet_float() [L120] CALL assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=3, var_1_14=4, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=3, var_1_14=4, var_1_15=125/4, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L121] var_1_15 = __VERIFIER_nondet_float() [L122] CALL assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=3, var_1_14=4, var_1_15=5, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L20] COND FALSE !(!cond) [L122] RET assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=3, var_1_14=4, var_1_15=5, var_1_16=1, var_1_17=0, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L123] var_1_17 = __VERIFIER_nondet_uchar() [L124] CALL assume_abort_if_not(var_1_17 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=3, var_1_14=4, var_1_15=5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L20] COND FALSE !(!cond) [L124] RET assume_abort_if_not(var_1_17 >= 1) VAL [isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=3, var_1_14=4, var_1_15=5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L125] CALL assume_abort_if_not(var_1_17 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=3, var_1_14=4, var_1_15=5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L20] COND FALSE !(!cond) [L125] RET assume_abort_if_not(var_1_17 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=3, var_1_14=4, var_1_15=5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L126] var_1_18 = __VERIFIER_nondet_uchar() [L127] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=3, var_1_14=4, var_1_15=5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L20] COND FALSE !(!cond) [L127] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=3, var_1_14=4, var_1_15=5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L128] CALL assume_abort_if_not(var_1_18 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=3, var_1_14=4, var_1_15=5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L20] COND FALSE !(!cond) [L128] RET assume_abort_if_not(var_1_18 <= 0) VAL [isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=3, var_1_14=4, var_1_15=5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=23544, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L129] var_1_21 = __VERIFIER_nondet_ushort() [L130] CALL assume_abort_if_not(var_1_21 >= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=3, var_1_14=4, var_1_15=5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=16383, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L20] COND FALSE !(!cond) [L130] RET assume_abort_if_not(var_1_21 >= 16383) VAL [isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=3, var_1_14=4, var_1_15=5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=16383, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L131] CALL assume_abort_if_not(var_1_21 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=3, var_1_14=4, var_1_15=5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=16383, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L20] COND FALSE !(!cond) [L131] RET assume_abort_if_not(var_1_21 <= 32767) VAL [isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4999999999999999/25000000000000000, var_1_13=3, var_1_14=4, var_1_15=5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=8, var_1_20=256, var_1_21=16383, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L144] RET updateVariables() [L145] CALL step() [L47] COND TRUE var_1_2 >= (1.3 / var_1_3) [L48] var_1_1 = ((var_1_4 - var_1_5) - var_1_6) [L52] signed long int stepLocal_0 = 32796 - ((((var_1_6) < (var_1_9)) ? (var_1_6) : (var_1_9))); [L53] COND FALSE !(var_1_5 >= stepLocal_0) [L58] COND FALSE !(\read(var_1_10)) [L63] var_1_12 = var_1_14 [L65] COND FALSE !((var_1_6 + var_1_8) > (((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7))) + var_1_1)) [L68] var_1_16 = var_1_18 [L70] unsigned char stepLocal_1 = var_1_1 < 64; [L71] COND FALSE !(\read(var_1_16)) [L76] unsigned short int stepLocal_2 = var_1_4; [L77] COND TRUE var_1_6 <= stepLocal_2 [L78] COND FALSE !(\read(var_1_16)) [L81] var_1_20 = 16 [L86] EXPR 2 ^ var_1_1 [L86] EXPR (((var_1_4 * var_1_6)) > ((2 ^ var_1_1))) ? ((var_1_4 * var_1_6)) : ((2 ^ var_1_1)) [L86] COND FALSE !(var_1_8 >= (((((var_1_4 * var_1_6)) > ((2 ^ var_1_1))) ? ((var_1_4 * var_1_6)) : ((2 ^ var_1_1))))) [L145] RET step() [L146] CALL, EXPR property() [L136] EXPR (((((((var_1_2 >= (1.3 / var_1_3)) ? (var_1_1 == ((unsigned short int) ((var_1_4 - var_1_5) - var_1_6))) : (var_1_1 == ((unsigned short int) ((((var_1_7) < (var_1_4)) ? (var_1_7) : (var_1_4)))))) && ((var_1_5 >= (32796 - ((((var_1_6) < (var_1_9)) ? (var_1_6) : (var_1_9))))) ? (var_1_10 ? (var_1_8 == ((unsigned char) var_1_11)) : 1) : 1)) && (var_1_10 ? (((var_1_8 * var_1_7) < var_1_11) ? (var_1_12 == ((float) ((((((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14)))) > (var_1_15)) ? (((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14)))) : (var_1_15))))) : 1) : (var_1_12 == ((float) var_1_14)))) && (((var_1_6 + var_1_8) > (((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7))) + var_1_1)) ? (var_1_16 == ((unsigned char) (var_1_10 || var_1_17))) : (var_1_16 == ((unsigned char) var_1_18)))) && (var_1_16 ? (((var_1_1 < 64) || var_1_10) ? (var_1_19 == ((unsigned char) var_1_17)) : 1) : 1)) && ((var_1_6 <= var_1_4) ? (var_1_16 ? (var_1_20 == ((unsigned short int) (var_1_4 - ((((var_1_21 - var_1_8) < 0 ) ? -(var_1_21 - var_1_8) : (var_1_21 - var_1_8)))))) : (var_1_20 == ((unsigned short int) 16))) : (var_1_20 == ((unsigned short int) (var_1_4 - var_1_5))))) && ((var_1_8 >= (((((var_1_4 * var_1_6)) > ((2 ^ var_1_1))) ? ((var_1_4 * var_1_6)) : ((2 ^ var_1_1))))) ? (var_1_22 == ((unsigned long int) var_1_8)) : 1) [L136-L137] return (((((((var_1_2 >= (1.3 / var_1_3)) ? (var_1_1 == ((unsigned short int) ((var_1_4 - var_1_5) - var_1_6))) : (var_1_1 == ((unsigned short int) ((((var_1_7) < (var_1_4)) ? (var_1_7) : (var_1_4)))))) && ((var_1_5 >= (32796 - ((((var_1_6) < (var_1_9)) ? (var_1_6) : (var_1_9))))) ? (var_1_10 ? (var_1_8 == ((unsigned char) var_1_11)) : 1) : 1)) && (var_1_10 ? (((var_1_8 * var_1_7) < var_1_11) ? (var_1_12 == ((float) ((((((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14)))) > (var_1_15)) ? (((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14)))) : (var_1_15))))) : 1) : (var_1_12 == ((float) var_1_14)))) && (((var_1_6 + var_1_8) > (((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7))) + var_1_1)) ? (var_1_16 == ((unsigned char) (var_1_10 || var_1_17))) : (var_1_16 == ((unsigned char) var_1_18)))) && (var_1_16 ? (((var_1_1 < 64) || var_1_10) ? (var_1_19 == ((unsigned char) var_1_17)) : 1) : 1)) && ((var_1_6 <= var_1_4) ? (var_1_16 ? (var_1_20 == ((unsigned short int) (var_1_4 - ((((var_1_21 - var_1_8) < 0 ) ? -(var_1_21 - var_1_8) : (var_1_21 - var_1_8)))))) : (var_1_20 == ((unsigned short int) 16))) : (var_1_20 == ((unsigned short int) (var_1_4 - var_1_5))))) && ((var_1_8 >= (((((var_1_4 * var_1_6)) > ((2 ^ var_1_1))) ? ((var_1_4 * var_1_6)) : ((2 ^ var_1_1))))) ? (var_1_22 == ((unsigned long int) var_1_8)) : 1) ; [L146] RET, EXPR property() [L146] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4, var_1_13=3, var_1_14=4, var_1_15=5, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=3, var_1_20=16, var_1_21=16383, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=254, var_1_12=4, var_1_13=3, var_1_14=4, var_1_15=5, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=1, var_1_1=3, var_1_20=16, var_1_21=16383, var_1_22=64, var_1_3=2, var_1_4=49150, var_1_5=16380, var_1_6=32767, var_1_7=49150, var_1_8=64, var_1_9=16415] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 26, 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=50occurred 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 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 [2023-11-12 00:53:39,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX --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 874b8c0685149675525220fee2d5689c1d5289515348c6c05c19ae6cc8a7fb40 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:53:42,303 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:53:42,376 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:53:42,382 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:53:42,383 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:53:42,409 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:53:42,410 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:53:42,411 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:53:42,412 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:53:42,412 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:53:42,413 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:53:42,414 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:53:42,414 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:53:42,415 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:53:42,415 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:53:42,416 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:53:42,417 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:53:42,418 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:53:42,418 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:53:42,419 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:53:42,420 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:53:42,420 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:53:42,421 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:53:42,422 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:53:42,422 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:53:42,423 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:53:42,423 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:53:42,424 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:53:42,425 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:53:42,425 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:53:42,426 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:53:42,426 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:53:42,427 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:53:42,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:53:42,428 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:53:42,428 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:53:42,428 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:53:42,429 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:53:42,429 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:53:42,429 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:53:42,430 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:53:42,430 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:53:42,431 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_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 874b8c0685149675525220fee2d5689c1d5289515348c6c05c19ae6cc8a7fb40 [2023-11-12 00:53:42,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:53:42,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:53:42,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:53:42,930 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:53:42,932 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:53:42,933 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-47.i [2023-11-12 00:53:46,097 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:53:46,401 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:53:46,407 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-47.i [2023-11-12 00:53:46,419 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/data/8683f6202/ca922febc8f14274b1154dbb7da7d66c/FLAGdd41c1afe [2023-11-12 00:53:46,438 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/data/8683f6202/ca922febc8f14274b1154dbb7da7d66c [2023-11-12 00:53:46,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:53:46,446 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:53:46,450 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:53:46,451 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:53:46,456 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:53:46,458 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:53:46" (1/1) ... [2023-11-12 00:53:46,460 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21e94651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:46, skipping insertion in model container [2023-11-12 00:53:46,460 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:53:46" (1/1) ... [2023-11-12 00:53:46,508 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:53:46,703 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_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-47.i[917,930] [2023-11-12 00:53:46,804 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:53:46,819 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:53:46,831 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_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-47.i[917,930] [2023-11-12 00:53:46,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:53:46,955 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:53:46,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:46 WrapperNode [2023-11-12 00:53:46,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:53:46,957 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:53:46,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:53:46,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:53:46,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:46" (1/1) ... [2023-11-12 00:53:47,002 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:46" (1/1) ... [2023-11-12 00:53:47,052 INFO L138 Inliner]: procedures = 27, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 153 [2023-11-12 00:53:47,052 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:53:47,053 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:53:47,053 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:53:47,053 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:53:47,063 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:46" (1/1) ... [2023-11-12 00:53:47,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:46" (1/1) ... [2023-11-12 00:53:47,068 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:46" (1/1) ... [2023-11-12 00:53:47,068 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:46" (1/1) ... [2023-11-12 00:53:47,081 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:46" (1/1) ... [2023-11-12 00:53:47,084 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:46" (1/1) ... [2023-11-12 00:53:47,088 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:46" (1/1) ... [2023-11-12 00:53:47,090 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:46" (1/1) ... [2023-11-12 00:53:47,095 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:53:47,096 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:53:47,096 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:53:47,096 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:53:47,097 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:46" (1/1) ... [2023-11-12 00:53:47,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:53:47,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:53:47,141 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:53:47,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:53:47,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:53:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:53:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:53:47,179 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:53:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:53:47,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:53:47,313 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:53:47,315 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:53:52,968 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:53:52,976 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:53:52,976 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:53:52,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:53:52 BoogieIcfgContainer [2023-11-12 00:53:52,979 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:53:52,982 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:53:52,983 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:53:52,986 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:53:52,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:53:46" (1/3) ... [2023-11-12 00:53:52,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d25100f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:53:52, skipping insertion in model container [2023-11-12 00:53:52,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:46" (2/3) ... [2023-11-12 00:53:52,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d25100f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:53:52, skipping insertion in model container [2023-11-12 00:53:52,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:53:52" (3/3) ... [2023-11-12 00:53:52,990 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-47.i [2023-11-12 00:53:53,011 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:53:53,012 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:53:53,067 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:53:53,074 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;@16325b00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:53:53,074 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:53:53,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 45 states have (on average 1.3555555555555556) internal successors, (61), 46 states have internal predecessors, (61), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-12 00:53:53,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-11-12 00:53:53,119 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:53,121 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:53:53,124 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:53:53,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:53,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1746493275, now seen corresponding path program 1 times [2023-11-12 00:53:53,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:53:53,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [358431863] [2023-11-12 00:53:53,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:53,152 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 [2023-11-12 00:53:53,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:53:53,160 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:53:53,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:53:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:54,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:53:54,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:53:54,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 506 proven. 0 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2023-11-12 00:53:54,322 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:53:54,323 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:53:54,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [358431863] [2023-11-12 00:53:54,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [358431863] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:53:54,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:53:54,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:53:54,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196259701] [2023-11-12 00:53:54,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:53:54,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:53:54,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:53:54,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:53:54,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:53:54,362 INFO L87 Difference]: Start difference. First operand has 74 states, 45 states have (on average 1.3555555555555556) internal successors, (61), 46 states have internal predecessors, (61), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-12 00:53:54,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:53:54,394 INFO L93 Difference]: Finished difference Result 141 states and 246 transitions. [2023-11-12 00:53:54,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:53:54,398 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 164 [2023-11-12 00:53:54,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:53:54,409 INFO L225 Difference]: With dead ends: 141 [2023-11-12 00:53:54,409 INFO L226 Difference]: Without dead ends: 70 [2023-11-12 00:53:54,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:53:54,421 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:53:54,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:53:54,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-12 00:53:54,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2023-11-12 00:53:54,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 42 states have internal predecessors, (54), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-12 00:53:54,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 106 transitions. [2023-11-12 00:53:54,485 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 106 transitions. Word has length 164 [2023-11-12 00:53:54,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:53:54,486 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 106 transitions. [2023-11-12 00:53:54,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-12 00:53:54,486 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 106 transitions. [2023-11-12 00:53:54,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-11-12 00:53:54,490 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:54,490 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:53:54,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/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)] Forceful destruction successful, exit code 0 [2023-11-12 00:53:54,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:53:54,693 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:53:54,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:54,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1101803117, now seen corresponding path program 1 times [2023-11-12 00:53:54,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:53:54,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1102068933] [2023-11-12 00:53:54,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:54,696 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 [2023-11-12 00:53:54,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:53:54,698 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:53:54,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:53:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:55,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 00:53:55,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:53:56,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 465 proven. 15 refuted. 0 times theorem prover too weak. 820 trivial. 0 not checked. [2023-11-12 00:53:56,619 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:53:57,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 60 proven. 15 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2023-11-12 00:53:57,433 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:53:57,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1102068933] [2023-11-12 00:53:57,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1102068933] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:53:57,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1993480030] [2023-11-12 00:53:57,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:57,434 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 00:53:57,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 00:53:57,437 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 00:53:57,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-12 00:53:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:59,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 00:53:59,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:54:00,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 465 proven. 15 refuted. 0 times theorem prover too weak. 820 trivial. 0 not checked. [2023-11-12 00:54:00,334 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:54:00,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 60 proven. 15 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2023-11-12 00:54:00,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1993480030] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:54:00,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361514229] [2023-11-12 00:54:00,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:00,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:54:00,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:54:00,876 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:54:00,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e9cf2-1cb6-460a-8bfc-c7c37974cd95/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 00:54:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:02,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 00:54:02,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:54:05,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 599 proven. 114 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2023-11-12 00:54:05,480 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:54:07,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361514229] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:54:07,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 5 imperfect interpolant sequences. [2023-11-12 00:54:07,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 9] total 14 [2023-11-12 00:54:07,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112009702] [2023-11-12 00:54:07,030 INFO L85 oduleStraightlineAll]: Using 5 imperfect interpolants to construct interpolant automaton [2023-11-12 00:54:07,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-12 00:54:07,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:54:07,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-12 00:54:07,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2023-11-12 00:54:07,036 INFO L87 Difference]: Start difference. First operand 70 states and 106 transitions. Second operand has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 4 states have call successors, (53), 4 states have call predecessors, (53), 7 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2023-11-12 00:54:12,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:54:14,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:54:16,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:54:18,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:54:20,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:54:22,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:54:26,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:54:28,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:54:30,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:54:32,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:54:34,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:54:36,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []