./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-24.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-24.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 481fb6163129bcac31bfa5548f3c66416510365b56cd1a0ddcb41986b1359b6e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:58:15,045 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:58:15,110 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:58:15,116 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:58:15,116 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:58:15,142 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:58:15,143 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:58:15,143 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:58:15,144 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:58:15,145 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:58:15,145 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:58:15,146 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:58:15,147 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:58:15,147 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:58:15,148 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:58:15,148 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:58:15,149 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:58:15,149 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:58:15,150 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:58:15,151 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:58:15,151 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:58:15,152 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:58:15,152 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:58:15,153 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:58:15,153 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:58:15,154 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:58:15,154 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:58:15,155 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:58:15,155 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:58:15,156 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:58:15,156 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:58:15,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:15,158 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:58:15,158 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:58:15,159 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:58:15,159 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:58:15,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:58:15,160 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:58:15,161 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:58:15,161 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:58:15,162 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:58:15,162 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:58:15,163 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 481fb6163129bcac31bfa5548f3c66416510365b56cd1a0ddcb41986b1359b6e [2023-11-26 11:58:15,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:58:15,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:58:15,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:58:15,568 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:58:15,568 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:58:15,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-24.i [2023-11-26 11:58:18,639 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:58:18,914 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:58:18,918 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-24.i [2023-11-26 11:58:18,930 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/data/564d0c3fa/c6cc1bd2a03e458ca0375f3b7e666cb0/FLAGbb04e9be6 [2023-11-26 11:58:18,950 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/data/564d0c3fa/c6cc1bd2a03e458ca0375f3b7e666cb0 [2023-11-26 11:58:18,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:58:18,958 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:58:18,962 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:18,962 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:58:18,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:58:18,971 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:18" (1/1) ... [2023-11-26 11:58:18,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31180cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:18, skipping insertion in model container [2023-11-26 11:58:18,972 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:18" (1/1) ... [2023-11-26 11:58:19,010 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:58:19,257 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_6304d3ec-10b5-44bd-bdac-55d3023ab044/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-24.i[915,928] [2023-11-26 11:58:19,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:19,330 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:58:19,343 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_6304d3ec-10b5-44bd-bdac-55d3023ab044/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-24.i[915,928] [2023-11-26 11:58:19,366 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:19,383 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:58:19,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:19 WrapperNode [2023-11-26 11:58:19,384 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:19,385 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:19,385 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:58:19,386 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:58:19,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:19" (1/1) ... [2023-11-26 11:58:19,403 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:19" (1/1) ... [2023-11-26 11:58:19,447 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 102 [2023-11-26 11:58:19,448 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:19,449 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:58:19,450 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:58:19,450 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:58:19,459 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:19" (1/1) ... [2023-11-26 11:58:19,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:19" (1/1) ... [2023-11-26 11:58:19,462 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:19" (1/1) ... [2023-11-26 11:58:19,477 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:58:19,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:19" (1/1) ... [2023-11-26 11:58:19,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:19" (1/1) ... [2023-11-26 11:58:19,495 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:19" (1/1) ... [2023-11-26 11:58:19,509 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:19" (1/1) ... [2023-11-26 11:58:19,511 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:19" (1/1) ... [2023-11-26 11:58:19,513 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:19" (1/1) ... [2023-11-26 11:58:19,516 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:58:19,517 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:58:19,517 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:58:19,517 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:58:19,518 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:19" (1/1) ... [2023-11-26 11:58:19,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:19,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:19,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:19,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:58:19,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:58:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:58:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:58:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:58:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:58:19,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:58:19,710 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:58:19,713 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:58:20,058 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:58:20,101 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:58:20,101 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:58:20,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:20 BoogieIcfgContainer [2023-11-26 11:58:20,102 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:58:20,105 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:58:20,106 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:58:20,109 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:58:20,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:58:18" (1/3) ... [2023-11-26 11:58:20,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59668b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:58:20, skipping insertion in model container [2023-11-26 11:58:20,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:19" (2/3) ... [2023-11-26 11:58:20,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59668b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:58:20, skipping insertion in model container [2023-11-26 11:58:20,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:20" (3/3) ... [2023-11-26 11:58:20,112 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-24.i [2023-11-26 11:58:20,132 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:58:20,133 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:58:20,182 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:58:20,189 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@61cca63e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:58:20,189 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:58:20,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 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) [2023-11-26 11:58:20,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-26 11:58:20,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:20,207 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] [2023-11-26 11:58:20,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:20,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:20,213 INFO L85 PathProgramCache]: Analyzing trace with hash 39130111, now seen corresponding path program 1 times [2023-11-26 11:58:20,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:20,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023497133] [2023-11-26 11:58:20,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:20,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:58:20,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:58:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:58:20,770 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:58:20,772 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:58:20,774 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:58:20,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:58:20,782 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-26 11:58:20,788 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:58:20,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:58:20 BoogieIcfgContainer [2023-11-26 11:58:20,892 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:58:20,893 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:58:20,893 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:58:20,893 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:58:20,894 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:20" (3/4) ... [2023-11-26 11:58:20,896 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:58:20,897 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:58:20,898 INFO L158 Benchmark]: Toolchain (without parser) took 1939.93ms. Allocated memory is still 146.8MB. Free memory was 103.3MB in the beginning and 51.3MB in the end (delta: 52.1MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2023-11-26 11:58:20,899 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 69.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:58:20,899 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.44ms. Allocated memory is still 146.8MB. Free memory was 103.3MB in the beginning and 110.0MB in the end (delta: -6.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:58:20,900 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.86ms. Allocated memory is still 146.8MB. Free memory was 110.0MB in the beginning and 107.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:58:20,901 INFO L158 Benchmark]: Boogie Preprocessor took 67.28ms. Allocated memory is still 146.8MB. Free memory was 107.3MB in the beginning and 102.9MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:58:20,902 INFO L158 Benchmark]: RCFGBuilder took 585.62ms. Allocated memory is still 146.8MB. Free memory was 102.9MB in the beginning and 84.2MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 11:58:20,903 INFO L158 Benchmark]: TraceAbstraction took 787.04ms. Allocated memory is still 146.8MB. Free memory was 83.6MB in the beginning and 51.3MB in the end (delta: 32.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-26 11:58:20,903 INFO L158 Benchmark]: Witness Printer took 4.35ms. Allocated memory is still 146.8MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:58:20,907 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 69.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 422.44ms. Allocated memory is still 146.8MB. Free memory was 103.3MB in the beginning and 110.0MB in the end (delta: -6.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.86ms. Allocated memory is still 146.8MB. Free memory was 110.0MB in the beginning and 107.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.28ms. Allocated memory is still 146.8MB. Free memory was 107.3MB in the beginning and 102.9MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 585.62ms. Allocated memory is still 146.8MB. Free memory was 102.9MB in the beginning and 84.2MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 787.04ms. Allocated memory is still 146.8MB. Free memory was 83.6MB in the beginning and 51.3MB in the end (delta: 32.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.35ms. Allocated memory is still 146.8MB. Free memory is still 51.3MB. 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 88. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 32; [L23] unsigned char var_1_2 = 0; [L24] float var_1_3 = 127.1; [L25] signed char var_1_4 = 16; [L26] signed char var_1_5 = 4; [L27] unsigned char var_1_6 = 8; [L28] float var_1_7 = 1000000.6; [L29] unsigned char var_1_8 = 64; [L30] unsigned char var_1_9 = 64; [L31] unsigned char var_1_10 = 128; [L32] unsigned char var_1_11 = 32; [L33] float var_1_12 = 16.8; [L92] isInitial = 1 [L93] FCALL initially() [L94] COND TRUE 1 [L95] FCALL updateLastVariables() [L96] CALL updateVariables() [L60] var_1_2 = __VERIFIER_nondet_uchar() [L61] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_3=1271/10, var_1_4=16, var_1_5=4, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_3=1271/10, var_1_4=16, var_1_5=4, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L61] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_3=1271/10, var_1_4=16, var_1_5=4, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L62] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_3=1271/10, var_1_4=16, var_1_5=4, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_3=1271/10, var_1_4=16, var_1_5=4, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L62] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_3=1271/10, var_1_4=16, var_1_5=4, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L63] var_1_3 = __VERIFIER_nondet_float() [L64] 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=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=16, var_1_5=4, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=16, var_1_5=4, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L64] 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=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=16, var_1_5=4, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L65] var_1_4 = __VERIFIER_nondet_char() [L66] CALL assume_abort_if_not(var_1_4 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=4, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=4, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L66] RET assume_abort_if_not(var_1_4 >= -1) VAL [isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=4, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L67] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=4, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=4, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L67] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=4, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L68] var_1_5 = __VERIFIER_nondet_char() [L69] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L69] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L70] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L70] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_7=5000003/5, var_1_8=64, var_1_9=64] [L71] var_1_7 = __VERIFIER_nondet_float() [L72] CALL assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=64, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=64, var_1_9=64] [L72] RET assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=64, var_1_9=64] [L73] var_1_8 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_8 >= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=64] [L74] RET assume_abort_if_not(var_1_8 >= 63) VAL [isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=64] [L75] CALL assume_abort_if_not(var_1_8 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=64] [L75] RET assume_abort_if_not(var_1_8 <= 127) VAL [isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=64] [L76] var_1_9 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_9 >= 64) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=74] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=74] [L77] RET assume_abort_if_not(var_1_9 >= 64) VAL [isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=74] [L78] CALL assume_abort_if_not(var_1_9 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=74] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=74] [L78] RET assume_abort_if_not(var_1_9 <= 127) VAL [isInitial=1, var_1_10=128, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=74] [L79] var_1_10 = __VERIFIER_nondet_uchar() [L80] CALL assume_abort_if_not(var_1_10 >= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=74] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=127, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=74] [L80] RET assume_abort_if_not(var_1_10 >= 127) VAL [isInitial=1, var_1_10=127, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=74] [L81] CALL assume_abort_if_not(var_1_10 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=74] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=127, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=74] [L81] RET assume_abort_if_not(var_1_10 <= 254) VAL [isInitial=1, var_1_10=127, var_1_11=32, var_1_12=84/5, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=74] [L82] var_1_12 = __VERIFIER_nondet_float() [L83] CALL assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=32, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=74] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=127, var_1_11=32, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=74] [L83] RET assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=127, var_1_11=32, var_1_1=32, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=74] [L96] RET updateVariables() [L97] CALL step() [L37] COND FALSE !(var_1_2 || (64.75f < var_1_3)) [L44] var_1_1 = var_1_5 VAL [isInitial=1, var_1_10=127, var_1_11=32, var_1_1=72, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=8, var_1_8=127, var_1_9=74] [L46] COND TRUE var_1_3 <= var_1_7 [L47] var_1_6 = ((((((var_1_8 + var_1_9)) > (((((var_1_10) > (200)) ? (var_1_10) : (200))))) ? ((var_1_8 + var_1_9)) : (((((var_1_10) > (200)) ? (var_1_10) : (200)))))) - var_1_5) VAL [isInitial=1, var_1_10=127, var_1_11=32, var_1_1=72, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=129, var_1_8=127, var_1_9=74] [L51] COND FALSE !(((((var_1_6) > (var_1_8)) ? (var_1_6) : (var_1_8))) <= var_1_10) VAL [isInitial=1, var_1_10=127, var_1_11=32, var_1_1=72, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=129, var_1_8=127, var_1_9=74] [L97] RET step() [L98] CALL, EXPR property() [L88-L89] return (((var_1_2 || (64.75f < var_1_3)) ? (var_1_2 ? (var_1_1 == ((signed char) (var_1_4 - var_1_5))) : (var_1_1 == ((signed char) var_1_4))) : (var_1_1 == ((signed char) var_1_5))) && ((var_1_3 <= var_1_7) ? (var_1_6 == ((unsigned char) ((((((var_1_8 + var_1_9)) > (((((var_1_10) > (200)) ? (var_1_10) : (200))))) ? ((var_1_8 + var_1_9)) : (((((var_1_10) > (200)) ? (var_1_10) : (200)))))) - var_1_5))) : (var_1_6 == ((unsigned char) var_1_10)))) && ((((((var_1_6) > (var_1_8)) ? (var_1_6) : (var_1_8))) <= var_1_10) ? ((var_1_3 == (var_1_7 + var_1_12)) ? (var_1_11 == ((unsigned char) (var_1_9 + var_1_5))) : (var_1_11 == ((unsigned char) var_1_9))) : 1) ; [L98] RET, EXPR property() [L98] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=127, var_1_11=32, var_1_1=72, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=129, var_1_8=127, var_1_9=74] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=127, var_1_11=32, var_1_1=72, var_1_2=0, var_1_4=-1, var_1_5=72, var_1_6=129, var_1_8=127, var_1_9=74] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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=42occurred 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, 92 NumberOfCodeBlocks, 92 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 [2023-11-26 11:58:20,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-24.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 481fb6163129bcac31bfa5548f3c66416510365b56cd1a0ddcb41986b1359b6e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:58:23,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:58:23,875 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 11:58:23,884 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:58:23,884 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:58:23,931 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:58:23,932 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:58:23,933 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:58:23,934 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:58:23,940 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:58:23,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:58:23,942 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:58:23,942 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:58:23,945 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:58:23,945 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:58:23,946 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:58:23,947 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:58:23,947 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:58:23,948 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:58:23,949 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:58:23,950 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:58:23,951 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:58:23,951 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:58:23,952 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:58:23,952 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 11:58:23,953 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 11:58:23,954 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:58:23,954 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:58:23,955 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:58:23,956 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:58:23,957 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:58:23,958 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:58:23,958 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:58:23,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:23,959 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:58:23,959 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:58:23,960 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:58:23,961 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 11:58:23,961 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 11:58:23,961 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:58:23,961 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:58:23,962 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:58:23,962 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:58:23,962 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:58:23,963 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 11:58:23,963 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 481fb6163129bcac31bfa5548f3c66416510365b56cd1a0ddcb41986b1359b6e [2023-11-26 11:58:24,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:58:24,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:58:24,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:58:24,433 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:58:24,433 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:58:24,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-24.i [2023-11-26 11:58:27,681 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:58:28,004 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:58:28,005 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-24.i [2023-11-26 11:58:28,015 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/data/7ed55b52f/7a598d6a172446d0aef1074ed26ef22f/FLAGcffa1f05d [2023-11-26 11:58:28,036 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/data/7ed55b52f/7a598d6a172446d0aef1074ed26ef22f [2023-11-26 11:58:28,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:58:28,041 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:58:28,043 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:28,043 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:58:28,051 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:58:28,052 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:28" (1/1) ... [2023-11-26 11:58:28,053 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a028277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:28, skipping insertion in model container [2023-11-26 11:58:28,054 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:28" (1/1) ... [2023-11-26 11:58:28,097 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:58:28,319 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_6304d3ec-10b5-44bd-bdac-55d3023ab044/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-24.i[915,928] [2023-11-26 11:58:28,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:28,424 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:58:28,445 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_6304d3ec-10b5-44bd-bdac-55d3023ab044/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-24.i[915,928] [2023-11-26 11:58:28,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:28,505 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:58:28,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:28 WrapperNode [2023-11-26 11:58:28,506 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:28,507 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:28,507 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:58:28,508 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:58:28,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:28" (1/1) ... [2023-11-26 11:58:28,559 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:28" (1/1) ... [2023-11-26 11:58:28,603 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2023-11-26 11:58:28,605 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:28,607 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:58:28,607 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:58:28,608 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:58:28,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:28" (1/1) ... [2023-11-26 11:58:28,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:28" (1/1) ... [2023-11-26 11:58:28,635 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:28" (1/1) ... [2023-11-26 11:58:28,661 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:58:28,670 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:28" (1/1) ... [2023-11-26 11:58:28,671 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:28" (1/1) ... [2023-11-26 11:58:28,680 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:28" (1/1) ... [2023-11-26 11:58:28,693 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:28" (1/1) ... [2023-11-26 11:58:28,702 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:28" (1/1) ... [2023-11-26 11:58:28,705 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:28" (1/1) ... [2023-11-26 11:58:28,712 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:58:28,716 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:58:28,717 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:58:28,718 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:58:28,719 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:28" (1/1) ... [2023-11-26 11:58:28,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:28,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:28,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:28,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:58:28,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:58:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 11:58:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:58:28,811 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:58:28,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:58:28,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:58:28,938 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:58:28,940 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:58:29,466 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:58:29,514 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:58:29,515 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:58:29,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:29 BoogieIcfgContainer [2023-11-26 11:58:29,516 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:58:29,518 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:58:29,518 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:58:29,521 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:58:29,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:58:28" (1/3) ... [2023-11-26 11:58:29,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c8be4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:58:29, skipping insertion in model container [2023-11-26 11:58:29,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:28" (2/3) ... [2023-11-26 11:58:29,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c8be4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:58:29, skipping insertion in model container [2023-11-26 11:58:29,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:29" (3/3) ... [2023-11-26 11:58:29,525 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-24.i [2023-11-26 11:58:29,544 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:58:29,544 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:58:29,601 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:58:29,608 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@64bea430, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:58:29,608 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:58:29,612 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 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) [2023-11-26 11:58:29,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-26 11:58:29,624 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:29,625 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] [2023-11-26 11:58:29,626 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:29,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:29,632 INFO L85 PathProgramCache]: Analyzing trace with hash 39130111, now seen corresponding path program 1 times [2023-11-26 11:58:29,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:58:29,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744993027] [2023-11-26 11:58:29,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:29,646 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 [2023-11-26 11:58:29,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:58:29,651 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 11:58:29,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6304d3ec-10b5-44bd-bdac-55d3023ab044/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:58:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:29,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-26 11:58:29,979 INFO L285 TraceCheckSpWp]: Computing forward predicates...