./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-18.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ --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 5df12748aa4b798bbcf1e2feecf7fe8cb40f1f75b4d421387cd82f5b5b6dd575 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:22:05,611 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:22:05,726 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:22:05,733 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:22:05,734 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:22:05,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:22:05,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:22:05,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:22:05,767 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:22:05,768 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:22:05,769 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:22:05,769 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:22:05,770 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:22:05,770 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:22:05,771 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:22:05,772 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:22:05,772 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:22:05,773 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:22:05,774 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:22:05,775 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:22:05,775 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:22:05,776 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:22:05,777 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:22:05,778 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:22:05,778 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:22:05,779 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:22:05,779 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:22:05,780 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:22:05,780 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:22:05,781 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:22:05,781 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:22:05,782 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:22:05,782 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:22:05,782 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:22:05,783 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:22:05,783 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:22:05,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:22:05,784 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:22:05,784 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:22:05,784 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:22:05,784 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:22:05,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:22:05,785 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:22:05,785 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:22:05,786 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:22:05,786 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_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5df12748aa4b798bbcf1e2feecf7fe8cb40f1f75b4d421387cd82f5b5b6dd575 [2023-11-19 05:22:06,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:22:06,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:22:06,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:22:06,116 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:22:06,117 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:22:06,119 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-18.i [2023-11-19 05:22:09,341 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:22:09,588 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:22:09,589 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-18.i [2023-11-19 05:22:09,599 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/data/1bc9f2abe/4b1d9372e15443a2852fc271efbe8627/FLAG9603db9b4 [2023-11-19 05:22:09,615 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/data/1bc9f2abe/4b1d9372e15443a2852fc271efbe8627 [2023-11-19 05:22:09,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:22:09,619 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:22:09,621 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:22:09,621 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:22:09,629 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:22:09,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:22:09" (1/1) ... [2023-11-19 05:22:09,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43680366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:09, skipping insertion in model container [2023-11-19 05:22:09,631 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:22:09" (1/1) ... [2023-11-19 05:22:09,672 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:22:09,840 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_a2dfa779-7e61-4373-ae60-ccefc1ed7503/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-18.i[915,928] [2023-11-19 05:22:09,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:22:09,940 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:22:09,952 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_a2dfa779-7e61-4373-ae60-ccefc1ed7503/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-18.i[915,928] [2023-11-19 05:22:09,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:22:10,001 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:22:10,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:10 WrapperNode [2023-11-19 05:22:10,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:22:10,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:22:10,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:22:10,004 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:22:10,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:10" (1/1) ... [2023-11-19 05:22:10,024 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:10" (1/1) ... [2023-11-19 05:22:10,060 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 137 [2023-11-19 05:22:10,060 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:22:10,061 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:22:10,061 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:22:10,061 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:22:10,072 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:10" (1/1) ... [2023-11-19 05:22:10,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:10" (1/1) ... [2023-11-19 05:22:10,076 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:10" (1/1) ... [2023-11-19 05:22:10,077 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:10" (1/1) ... [2023-11-19 05:22:10,086 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:10" (1/1) ... [2023-11-19 05:22:10,090 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:10" (1/1) ... [2023-11-19 05:22:10,092 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:10" (1/1) ... [2023-11-19 05:22:10,094 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:10" (1/1) ... [2023-11-19 05:22:10,099 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:22:10,100 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:22:10,100 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:22:10,100 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:22:10,101 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:10" (1/1) ... [2023-11-19 05:22:10,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:22:10,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:22:10,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:22:10,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:22:10,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:22:10,199 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:22:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:22:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:22:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:22:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:22:10,281 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:22:10,283 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:22:10,635 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:22:10,863 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:22:10,863 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:22:10,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:22:10 BoogieIcfgContainer [2023-11-19 05:22:10,869 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:22:10,871 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:22:10,872 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:22:10,875 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:22:10,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:22:09" (1/3) ... [2023-11-19 05:22:10,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e2af5b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:22:10, skipping insertion in model container [2023-11-19 05:22:10,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:10" (2/3) ... [2023-11-19 05:22:10,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e2af5b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:22:10, skipping insertion in model container [2023-11-19 05:22:10,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:22:10" (3/3) ... [2023-11-19 05:22:10,879 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-18.i [2023-11-19 05:22:10,901 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:22:10,902 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:22:10,953 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:22:10,960 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;@341aa986, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:22:10,960 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:22:10,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 05:22:10,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-19 05:22:10,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:10,974 INFO L195 NwaCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:22:10,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:22:10,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:10,979 INFO L85 PathProgramCache]: Analyzing trace with hash -2073994772, now seen corresponding path program 1 times [2023-11-19 05:22:10,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:10,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556899901] [2023-11-19 05:22:10,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:10,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:22:11,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:22:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:22:11,597 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:22:11,600 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:22:11,601 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:22:11,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:22:11,609 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:22:11,621 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:22:11,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:22:11 BoogieIcfgContainer [2023-11-19 05:22:11,744 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:22:11,747 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:22:11,748 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:22:11,749 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:22:11,749 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:22:10" (3/4) ... [2023-11-19 05:22:11,754 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:22:11,756 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:22:11,758 INFO L158 Benchmark]: Toolchain (without parser) took 2137.88ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 80.1MB in the beginning and 100.6MB in the end (delta: -20.5MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2023-11-19 05:22:11,759 INFO L158 Benchmark]: CDTParser took 1.22ms. Allocated memory is still 125.8MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:22:11,760 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.58ms. Allocated memory is still 125.8MB. Free memory was 80.1MB in the beginning and 66.6MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 05:22:11,761 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.15ms. Allocated memory is still 125.8MB. Free memory was 66.6MB in the beginning and 64.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:22:11,763 INFO L158 Benchmark]: Boogie Preprocessor took 37.92ms. Allocated memory is still 125.8MB. Free memory was 64.0MB in the beginning and 62.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:22:11,768 INFO L158 Benchmark]: RCFGBuilder took 769.25ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 62.4MB in the beginning and 135.2MB in the end (delta: -72.8MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2023-11-19 05:22:11,770 INFO L158 Benchmark]: TraceAbstraction took 872.91ms. Allocated memory is still 182.5MB. Free memory was 134.1MB in the beginning and 100.6MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-19 05:22:11,770 INFO L158 Benchmark]: Witness Printer took 8.70ms. Allocated memory is still 182.5MB. Free memory is still 100.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:22:11,779 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.22ms. Allocated memory is still 125.8MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.58ms. Allocated memory is still 125.8MB. Free memory was 80.1MB in the beginning and 66.6MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.15ms. Allocated memory is still 125.8MB. Free memory was 66.6MB in the beginning and 64.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.92ms. Allocated memory is still 125.8MB. Free memory was 64.0MB in the beginning and 62.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 769.25ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 62.4MB in the beginning and 135.2MB in the end (delta: -72.8MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. * TraceAbstraction took 872.91ms. Allocated memory is still 182.5MB. Free memory was 134.1MB in the beginning and 100.6MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 8.70ms. Allocated memory is still 182.5MB. Free memory is still 100.6MB. 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 someBinaryFLOATComparisonOperation at line 46, overapproximation of someBinaryArithmeticDOUBLEoperation at line 59, overapproximation of someBinaryDOUBLEComparisonOperation at line 59, overapproximation of someBinaryArithmeticFLOAToperation at line 66. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -1; [L23] float var_1_3 = 32.4; [L24] float var_1_4 = 5.5; [L25] float var_1_5 = 255.475; [L26] unsigned char var_1_7 = 0; [L27] signed char var_1_8 = -5; [L28] signed char var_1_9 = 2; [L29] unsigned char var_1_10 = 16; [L30] unsigned char var_1_11 = 16; [L31] float var_1_12 = 10000000.8; [L32] float var_1_13 = 127.7; [L33] float var_1_14 = 199.2; [L34] float var_1_15 = 999999.5; [L35] signed long int var_1_16 = -8; [L36] signed short int var_1_18 = -8; [L37] double var_1_19 = 5.4; [L38] signed char last_1_var_1_1 = -1; [L39] unsigned char last_1_var_1_10 = 16; [L40] signed long int last_1_var_1_16 = -8; [L131] isInitial = 1 [L132] FCALL initially() [L133] int k_loop; [L134] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_3=162/5, var_1_4=11/2, var_1_5=10219/40, var_1_7=0, var_1_8=-5, var_1_9=2] [L134] COND TRUE k_loop < 1 [L135] CALL updateLastVariables() [L122] last_1_var_1_1 = var_1_1 [L123] last_1_var_1_10 = var_1_10 [L124] last_1_var_1_16 = var_1_16 [L135] RET updateLastVariables() [L136] CALL updateVariables() [L95] var_1_3 = __VERIFIER_nondet_float() [L96] 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, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=11/2, var_1_5=10219/40, var_1_7=0, var_1_8=-5, var_1_9=2] [L20] COND FALSE !(!cond) [L96] 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, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=11/2, var_1_5=10219/40, var_1_7=0, var_1_8=-5, var_1_9=2] [L97] CALL assume_abort_if_not(var_1_3 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=11/2, var_1_5=10219/40, var_1_7=0, var_1_8=-5, var_1_9=2] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_3 != 0.0F) VAL [isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=11/2, var_1_5=10219/40, var_1_7=0, var_1_8=-5, var_1_9=2] [L98] var_1_4 = __VERIFIER_nondet_float() [L99] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10219/40, var_1_7=0, var_1_8=-5, var_1_9=2] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10219/40, var_1_7=0, var_1_8=-5, var_1_9=2] [L100] var_1_5 = __VERIFIER_nondet_float() [L101] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=0, var_1_8=-5, var_1_9=2] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=0, var_1_8=-5, var_1_9=2] [L102] var_1_7 = __VERIFIER_nondet_uchar() [L103] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=-5, var_1_9=2] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=-5, var_1_9=2] [L104] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=-5, var_1_9=2] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=-5, var_1_9=2] [L105] var_1_8 = __VERIFIER_nondet_char() [L106] CALL assume_abort_if_not(var_1_8 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=0, var_1_9=2] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(var_1_8 >= -127) VAL [isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=0, var_1_9=2] [L107] CALL assume_abort_if_not(var_1_8 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=0, var_1_9=2] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(var_1_8 <= 126) VAL [isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=0, var_1_9=2] [L108] var_1_9 = __VERIFIER_nondet_char() [L109] CALL assume_abort_if_not(var_1_9 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=0, var_1_9=-127] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_9 >= -127) VAL [isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=0, var_1_9=-127] [L110] CALL assume_abort_if_not(var_1_9 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=0, var_1_9=-127] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_9 <= 126) VAL [isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=16, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=0, var_1_9=-127] [L111] var_1_11 = __VERIFIER_nondet_uchar() [L112] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=254, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=0, var_1_9=-127] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=254, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=0, var_1_9=-127] [L113] CALL assume_abort_if_not(var_1_11 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=254, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=0, var_1_9=-127] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(var_1_11 <= 254) VAL [isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=254, var_1_12=50000004/5, var_1_13=1277/10, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=0, var_1_9=-127] [L114] var_1_13 = __VERIFIER_nondet_float() [L115] 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, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=254, var_1_12=50000004/5, var_1_13=27/5, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=0, var_1_9=-127] [L20] COND FALSE !(!cond) [L115] 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, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=254, var_1_12=50000004/5, var_1_13=27/5, var_1_14=996/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=0, var_1_9=-127] [L116] var_1_14 = __VERIFIER_nondet_float() [L117] CALL assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=254, var_1_12=50000004/5, var_1_13=27/5, var_1_14=27/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=0, var_1_9=-127] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=254, var_1_12=50000004/5, var_1_13=27/5, var_1_14=27/5, var_1_15=1999999/2, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=0, var_1_9=-127] [L118] var_1_15 = __VERIFIER_nondet_float() [L119] CALL assume_abort_if_not((var_1_15 >= -461168.6018427382800e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=254, var_1_12=50000004/5, var_1_13=27/5, var_1_14=27/5, var_1_15=27/5, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=0, var_1_9=-127] [L20] COND FALSE !(!cond) [L119] RET assume_abort_if_not((var_1_15 >= -461168.6018427382800e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=16, var_1_11=254, var_1_12=50000004/5, var_1_13=27/5, var_1_14=27/5, var_1_15=27/5, var_1_16=-8, var_1_18=-8, var_1_19=27/5, var_1_1=-1, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=0, var_1_9=-127] [L136] RET updateVariables() [L137] CALL step() [L44] signed long int stepLocal_0 = last_1_var_1_16; [L45] COND TRUE var_1_9 < stepLocal_0 [L46] COND TRUE (var_1_4 - var_1_5) > var_1_3 [L47] var_1_10 = 8 [L52] COND TRUE \read(var_1_7) [L53] var_1_16 = var_1_8 [L57] signed long int stepLocal_2 = last_1_var_1_10; [L58] COND TRUE ! (last_1_var_1_1 > last_1_var_1_10) [L59] var_1_19 = ((((var_1_13) > ((((((0.05 + var_1_15)) < (var_1_14)) ? ((0.05 + var_1_15)) : (var_1_14))))) ? (var_1_13) : ((((((0.05 + var_1_15)) < (var_1_14)) ? ((0.05 + var_1_15)) : (var_1_14)))))) [L65] COND FALSE !(var_1_5 <= (var_1_19 / var_1_3)) [L68] var_1_12 = var_1_14 [L70] COND TRUE (var_1_12 / var_1_3) > ((var_1_4 - var_1_5) * var_1_19) [L71] COND TRUE \read(var_1_7) [L72] var_1_1 = var_1_8 [L79] signed char stepLocal_1 = var_1_1; [L80] COND FALSE !(stepLocal_1 >= (var_1_16 + var_1_10)) [L91] var_1_18 = var_1_8 [L137] RET step() [L138] CALL, EXPR property() [L127-L128] return (((((((var_1_12 / var_1_3) > ((var_1_4 - var_1_5) * var_1_19)) ? (var_1_7 ? (var_1_1 == ((signed char) var_1_8)) : (var_1_1 == ((signed char) var_1_9))) : (var_1_1 == ((signed char) var_1_8))) && ((var_1_9 < last_1_var_1_16) ? (((var_1_4 - var_1_5) > var_1_3) ? (var_1_10 == ((unsigned char) 8)) : 1) : (var_1_10 == ((unsigned char) var_1_11)))) && ((var_1_5 <= (var_1_19 / var_1_3)) ? (var_1_12 == ((float) ((((var_1_13) > ((var_1_14 + var_1_15))) ? (var_1_13) : ((var_1_14 + var_1_15)))))) : (var_1_12 == ((float) var_1_14)))) && (var_1_7 ? (var_1_16 == ((signed long int) var_1_8)) : (var_1_16 == ((signed long int) (var_1_11 - ((((var_1_10 - var_1_10) < 0 ) ? -(var_1_10 - var_1_10) : (var_1_10 - var_1_10)))))))) && ((var_1_1 >= (var_1_16 + var_1_10)) ? ((var_1_5 < 999.5f) ? (var_1_7 ? (var_1_18 == ((signed short int) (var_1_16 + var_1_16))) : (var_1_18 == ((signed short int) var_1_8))) : (var_1_18 == ((signed short int) var_1_9))) : (var_1_18 == ((signed short int) var_1_8)))) && ((! (last_1_var_1_1 > last_1_var_1_10)) ? (var_1_19 == ((double) ((((var_1_13) > ((((((0.05 + var_1_15)) < (var_1_14)) ? ((0.05 + var_1_15)) : (var_1_14))))) ? (var_1_13) : ((((((0.05 + var_1_15)) < (var_1_14)) ? ((0.05 + var_1_15)) : (var_1_14)))))))) : ((last_1_var_1_10 > var_1_9) ? (var_1_19 == ((double) var_1_15)) : 1)) ; [L138] RET, EXPR property() [L138] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=8, var_1_11=254, var_1_12=27/5, var_1_13=27/5, var_1_14=27/5, var_1_15=27/5, var_1_16=0, var_1_18=0, var_1_19=27/5, var_1_1=0, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=0, var_1_9=-127] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=16, last_1_var_1_16=-8, last_1_var_1_1=-1, var_1_10=8, var_1_11=254, var_1_12=27/5, var_1_13=27/5, var_1_14=27/5, var_1_15=27/5, var_1_16=0, var_1_18=0, var_1_19=27/5, var_1_1=0, var_1_4=10000006, var_1_5=10000005, var_1_7=1, var_1_8=0, var_1_9=-127] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 15, 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=34occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 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 [2023-11-19 05:22:11,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ --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 5df12748aa4b798bbcf1e2feecf7fe8cb40f1f75b4d421387cd82f5b5b6dd575 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:22:14,663 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:22:14,750 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:22:14,762 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:22:14,763 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:22:14,821 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:22:14,822 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:22:14,823 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:22:14,824 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:22:14,825 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:22:14,825 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:22:14,826 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:22:14,826 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:22:14,827 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:22:14,827 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:22:14,828 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:22:14,829 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:22:14,830 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:22:14,830 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:22:14,832 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:22:14,833 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:22:14,833 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:22:14,834 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:22:14,835 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:22:14,835 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:22:14,835 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:22:14,836 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:22:14,836 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:22:14,837 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:22:14,837 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:22:14,839 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:22:14,839 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:22:14,840 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:22:14,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:22:14,841 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:22:14,841 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:22:14,841 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:22:14,842 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:22:14,842 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:22:14,843 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:22:14,843 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:22:14,844 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:22:14,844 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_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5df12748aa4b798bbcf1e2feecf7fe8cb40f1f75b4d421387cd82f5b5b6dd575 [2023-11-19 05:22:15,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:22:15,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:22:15,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:22:15,340 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:22:15,340 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:22:15,342 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-18.i [2023-11-19 05:22:18,445 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:22:18,740 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:22:18,740 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-18.i [2023-11-19 05:22:18,755 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/data/22c326608/ba1f071388db4543abce8da4f4a7f4e4/FLAGabc75e3e7 [2023-11-19 05:22:18,774 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/data/22c326608/ba1f071388db4543abce8da4f4a7f4e4 [2023-11-19 05:22:18,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:22:18,785 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:22:18,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:22:18,792 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:22:18,798 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:22:18,801 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:22:18" (1/1) ... [2023-11-19 05:22:18,803 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@154c97fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:18, skipping insertion in model container [2023-11-19 05:22:18,803 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:22:18" (1/1) ... [2023-11-19 05:22:18,846 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:22:19,042 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_a2dfa779-7e61-4373-ae60-ccefc1ed7503/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-18.i[915,928] [2023-11-19 05:22:19,148 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:22:19,170 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:22:19,195 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_a2dfa779-7e61-4373-ae60-ccefc1ed7503/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-18.i[915,928] [2023-11-19 05:22:19,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:22:19,284 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:22:19,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:19 WrapperNode [2023-11-19 05:22:19,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:22:19,287 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:22:19,287 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:22:19,288 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:22:19,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:19" (1/1) ... [2023-11-19 05:22:19,325 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:19" (1/1) ... [2023-11-19 05:22:19,369 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 135 [2023-11-19 05:22:19,369 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:22:19,370 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:22:19,371 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:22:19,371 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:22:19,381 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:19" (1/1) ... [2023-11-19 05:22:19,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:19" (1/1) ... [2023-11-19 05:22:19,386 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:19" (1/1) ... [2023-11-19 05:22:19,387 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:19" (1/1) ... [2023-11-19 05:22:19,399 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:19" (1/1) ... [2023-11-19 05:22:19,403 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:19" (1/1) ... [2023-11-19 05:22:19,406 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:19" (1/1) ... [2023-11-19 05:22:19,409 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:19" (1/1) ... [2023-11-19 05:22:19,414 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:22:19,423 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:22:19,423 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:22:19,423 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:22:19,424 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:19" (1/1) ... [2023-11-19 05:22:19,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:22:19,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:22:19,530 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:22:19,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:22:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:22:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:22:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:22:19,586 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:22:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:22:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:22:19,719 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:22:19,722 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:22:32,253 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:22:32,262 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:22:32,263 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:22:32,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:22:32 BoogieIcfgContainer [2023-11-19 05:22:32,267 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:22:32,269 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:22:32,269 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:22:32,273 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:22:32,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:22:18" (1/3) ... [2023-11-19 05:22:32,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a3b4d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:22:32, skipping insertion in model container [2023-11-19 05:22:32,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:19" (2/3) ... [2023-11-19 05:22:32,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a3b4d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:22:32, skipping insertion in model container [2023-11-19 05:22:32,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:22:32" (3/3) ... [2023-11-19 05:22:32,277 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-18.i [2023-11-19 05:22:32,297 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:22:32,298 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:22:32,350 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:22:32,357 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;@2a2efc94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:22:32,357 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:22:32,362 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 40 states have (on average 1.4) internal successors, (56), 41 states have internal predecessors, (56), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 05:22:32,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-19 05:22:32,375 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:32,376 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:22:32,377 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:22:32,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:32,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1371047634, now seen corresponding path program 1 times [2023-11-19 05:22:32,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:22:32,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218769624] [2023-11-19 05:22:32,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:32,399 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 [2023-11-19 05:22:32,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:22:32,404 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:22:32,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:22:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:34,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:22:34,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:22:34,279 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2023-11-19 05:22:34,284 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:22:34,285 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:22:34,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218769624] [2023-11-19 05:22:34,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1218769624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:34,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:22:34,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:22:34,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55552308] [2023-11-19 05:22:34,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:34,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:22:34,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:22:34,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:22:34,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:22:34,324 INFO L87 Difference]: Start difference. First operand has 58 states, 40 states have (on average 1.4) internal successors, (56), 41 states have internal predecessors, (56), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 05:22:34,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:22:34,353 INFO L93 Difference]: Finished difference Result 113 states and 184 transitions. [2023-11-19 05:22:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:22:34,356 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 102 [2023-11-19 05:22:34,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:22:34,364 INFO L225 Difference]: With dead ends: 113 [2023-11-19 05:22:34,364 INFO L226 Difference]: Without dead ends: 54 [2023-11-19 05:22:34,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:22:34,372 INFO L413 NwaCegarLoop]: 83 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, 83 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 [2023-11-19 05:22:34,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:22:34,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-19 05:22:34,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-19 05:22:34,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 37 states have internal predecessors, (49), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 05:22:34,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 79 transitions. [2023-11-19 05:22:34,421 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 79 transitions. Word has length 102 [2023-11-19 05:22:34,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:22:34,422 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 79 transitions. [2023-11-19 05:22:34,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 05:22:34,422 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 79 transitions. [2023-11-19 05:22:34,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-19 05:22:34,425 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:34,426 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:22:34,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:22:34,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:22:34,641 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:22:34,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:34,642 INFO L85 PathProgramCache]: Analyzing trace with hash -566235832, now seen corresponding path program 1 times [2023-11-19 05:22:34,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:22:34,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173035090] [2023-11-19 05:22:34,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:34,644 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 [2023-11-19 05:22:34,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:22:34,645 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:22:34,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dfa779-7e61-4373-ae60-ccefc1ed7503/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:22:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:37,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-19 05:22:37,856 INFO L285 TraceCheckSpWp]: Computing forward predicates...