./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-29.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-29.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC --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 7e3b862ba9a2a4c1c92e3db12119deeccd82c1339b8fd16f8352680fc1302c9d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:23:48,528 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:23:48,623 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:23:48,630 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:23:48,631 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:23:48,669 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:23:48,670 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:23:48,670 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:23:48,671 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:23:48,671 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:23:48,672 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:23:48,672 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:23:48,673 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:23:48,673 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:23:48,674 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:23:48,674 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:23:48,674 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:23:48,674 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:23:48,674 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:23:48,675 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:23:48,675 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:23:48,675 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:23:48,675 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:23:48,675 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:23:48,675 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:23:48,675 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:23:48,676 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:23:48,676 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:23:48,676 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:23:48,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:23:48,676 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:23:48,676 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:23:48,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:23:48,676 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:23:48,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:23:48,677 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:23:48,677 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:23:48,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:23:48,677 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:23:48,677 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:23:48,677 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:23:48,677 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:23:48,677 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:23:48,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:23:48,677 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:23:48,677 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:23:48,677 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:23:48,678 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:23:48,678 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC 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 -> 7e3b862ba9a2a4c1c92e3db12119deeccd82c1339b8fd16f8352680fc1302c9d [2024-11-24 00:23:49,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:23:49,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:23:49,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:23:49,014 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:23:49,014 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:23:49,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-29.i [2024-11-24 00:23:52,173 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/data/94da746c7/7272b2a0b0d9474b8de6ceeb31647ddf/FLAGabfe19ffe [2024-11-24 00:23:52,442 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:23:52,443 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-29.i [2024-11-24 00:23:52,452 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/data/94da746c7/7272b2a0b0d9474b8de6ceeb31647ddf/FLAGabfe19ffe [2024-11-24 00:23:52,474 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/data/94da746c7/7272b2a0b0d9474b8de6ceeb31647ddf [2024-11-24 00:23:52,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:23:52,481 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:23:52,483 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:23:52,485 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:23:52,491 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:23:52,495 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:23:52" (1/1) ... [2024-11-24 00:23:52,496 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@160a6635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:23:52, skipping insertion in model container [2024-11-24 00:23:52,496 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:23:52" (1/1) ... [2024-11-24 00:23:52,521 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:23:52,708 WARN L250 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_92780b6c-c875-413b-b157-c30999be6bf9/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-29.i[915,928] [2024-11-24 00:23:52,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:23:52,770 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:23:52,782 WARN L250 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_92780b6c-c875-413b-b157-c30999be6bf9/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-29.i[915,928] [2024-11-24 00:23:52,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:23:52,812 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:23:52,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:23:52 WrapperNode [2024-11-24 00:23:52,812 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:23:52,813 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:23:52,814 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:23:52,814 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:23:52,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:23:52" (1/1) ... [2024-11-24 00:23:52,827 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:23:52" (1/1) ... [2024-11-24 00:23:52,854 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 99 [2024-11-24 00:23:52,854 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:23:52,855 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:23:52,855 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:23:52,855 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:23:52,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:23:52" (1/1) ... [2024-11-24 00:23:52,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:23:52" (1/1) ... [2024-11-24 00:23:52,878 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:23:52" (1/1) ... [2024-11-24 00:23:52,899 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]. [2024-11-24 00:23:52,899 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:23:52" (1/1) ... [2024-11-24 00:23:52,899 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:23:52" (1/1) ... [2024-11-24 00:23:52,904 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:23:52" (1/1) ... [2024-11-24 00:23:52,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:23:52" (1/1) ... [2024-11-24 00:23:52,910 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:23:52" (1/1) ... [2024-11-24 00:23:52,916 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:23:52" (1/1) ... [2024-11-24 00:23:52,917 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:23:52" (1/1) ... [2024-11-24 00:23:52,919 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:23:52,923 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:23:52,924 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:23:52,924 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:23:52,925 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:23:52" (1/1) ... [2024-11-24 00:23:52,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:23:52,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:23:52,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:23:52,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:23:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:23:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:23:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:23:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:23:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:23:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:23:53,088 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:23:53,089 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:23:53,426 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-24 00:23:53,426 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:23:53,436 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:23:53,436 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:23:53,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:23:53 BoogieIcfgContainer [2024-11-24 00:23:53,437 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:23:53,440 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:23:53,440 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:23:53,445 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:23:53,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:23:52" (1/3) ... [2024-11-24 00:23:53,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@622b664d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:23:53, skipping insertion in model container [2024-11-24 00:23:53,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:23:52" (2/3) ... [2024-11-24 00:23:53,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@622b664d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:23:53, skipping insertion in model container [2024-11-24 00:23:53,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:23:53" (3/3) ... [2024-11-24 00:23:53,448 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-29.i [2024-11-24 00:23:53,466 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:23:53,470 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-29.i that has 2 procedures, 49 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:23:53,530 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:23:53,543 INFO L333 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, 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;@2682f3b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:23:53,544 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:23:53,548 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:23:53,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-24 00:23:53,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:23:53,558 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:23:53,558 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:23:53,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:23:53,564 INFO L85 PathProgramCache]: Analyzing trace with hash -550549897, now seen corresponding path program 1 times [2024-11-24 00:23:53,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:23:53,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071678331] [2024-11-24 00:23:53,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:23:53,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:23:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:23:53,873 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-24 00:23:53,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:23:53,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071678331] [2024-11-24 00:23:53,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071678331] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:23:53,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576864308] [2024-11-24 00:23:53,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:23:53,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:23:53,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:23:53,881 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:23:53,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:23:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:23:54,073 INFO L256 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:23:54,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:23:54,113 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-24 00:23:54,114 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:23:54,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576864308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:23:54,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:23:54,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:23:54,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026640675] [2024-11-24 00:23:54,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:23:54,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:23:54,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:23:54,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:23:54,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:23:54,153 INFO L87 Difference]: Start difference. First operand has 49 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 00:23:54,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:23:54,187 INFO L93 Difference]: Finished difference Result 91 states and 152 transitions. [2024-11-24 00:23:54,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:23:54,189 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 100 [2024-11-24 00:23:54,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:23:54,194 INFO L225 Difference]: With dead ends: 91 [2024-11-24 00:23:54,194 INFO L226 Difference]: Without dead ends: 45 [2024-11-24 00:23:54,197 INFO L434 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 [2024-11-24 00:23:54,200 INFO L435 NwaCegarLoop]: 64 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, 64 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 [2024-11-24 00:23:54,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:23:54,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-24 00:23:54,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-24 00:23:54,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:23:54,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2024-11-24 00:23:54,255 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 100 [2024-11-24 00:23:54,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:23:54,255 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2024-11-24 00:23:54,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 00:23:54,256 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2024-11-24 00:23:54,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-24 00:23:54,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:23:54,262 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:23:54,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:23:54,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:23:54,463 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:23:54,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:23:54,464 INFO L85 PathProgramCache]: Analyzing trace with hash -860864905, now seen corresponding path program 1 times [2024-11-24 00:23:54,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:23:54,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20992781] [2024-11-24 00:23:54,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:23:54,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:23:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:23:56,415 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:23:56,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:23:56,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20992781] [2024-11-24 00:23:56,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20992781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:23:56,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:23:56,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:23:56,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726322558] [2024-11-24 00:23:56,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:23:56,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:23:56,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:23:56,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:23:56,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:23:56,420 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:23:57,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:23:57,200 INFO L93 Difference]: Finished difference Result 64 states and 86 transitions. [2024-11-24 00:23:57,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:23:57,202 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 100 [2024-11-24 00:23:57,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:23:57,205 INFO L225 Difference]: With dead ends: 64 [2024-11-24 00:23:57,205 INFO L226 Difference]: Without dead ends: 62 [2024-11-24 00:23:57,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:23:57,206 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 16 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:23:57,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 330 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:23:57,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-24 00:23:57,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2024-11-24 00:23:57,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 40 states have (on average 1.175) internal successors, (47), 41 states have internal predecessors, (47), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:23:57,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 83 transitions. [2024-11-24 00:23:57,233 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 83 transitions. Word has length 100 [2024-11-24 00:23:57,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:23:57,234 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 83 transitions. [2024-11-24 00:23:57,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:23:57,234 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 83 transitions. [2024-11-24 00:23:57,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-24 00:23:57,237 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:23:57,237 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:23:57,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:23:57,237 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:23:57,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:23:57,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1071969845, now seen corresponding path program 1 times [2024-11-24 00:23:57,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:23:57,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96242747] [2024-11-24 00:23:57,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:23:57,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:23:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:23:58,741 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:23:58,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:23:58,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96242747] [2024-11-24 00:23:58,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96242747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:23:58,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:23:58,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:23:58,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338073455] [2024-11-24 00:23:58,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:23:58,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:23:58,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:23:58,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:23:58,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:23:58,745 INFO L87 Difference]: Start difference. First operand 61 states and 83 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:23:59,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:23:59,675 INFO L93 Difference]: Finished difference Result 85 states and 110 transitions. [2024-11-24 00:23:59,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:23:59,677 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 101 [2024-11-24 00:23:59,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:23:59,683 INFO L225 Difference]: With dead ends: 85 [2024-11-24 00:23:59,683 INFO L226 Difference]: Without dead ends: 83 [2024-11-24 00:23:59,683 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:23:59,685 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 21 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:23:59,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 414 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:23:59,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-24 00:23:59,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 68. [2024-11-24 00:23:59,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 47 states have (on average 1.2127659574468086) internal successors, (57), 48 states have internal predecessors, (57), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:23:59,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 93 transitions. [2024-11-24 00:23:59,726 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 93 transitions. Word has length 101 [2024-11-24 00:23:59,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:23:59,727 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 93 transitions. [2024-11-24 00:23:59,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:23:59,728 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 93 transitions. [2024-11-24 00:23:59,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-24 00:23:59,729 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:23:59,732 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:23:59,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:23:59,733 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:23:59,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:23:59,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1893577294, now seen corresponding path program 1 times [2024-11-24 00:23:59,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:23:59,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753522328] [2024-11-24 00:23:59,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:23:59,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:23:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:00,529 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:24:00,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:00,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753522328] [2024-11-24 00:24:00,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753522328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:00,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:00,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:24:00,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206338887] [2024-11-24 00:24:00,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:00,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:24:00,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:00,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:24:00,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:00,532 INFO L87 Difference]: Start difference. First operand 68 states and 93 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:24:00,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:00,647 INFO L93 Difference]: Finished difference Result 161 states and 218 transitions. [2024-11-24 00:24:00,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:24:00,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 101 [2024-11-24 00:24:00,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:00,652 INFO L225 Difference]: With dead ends: 161 [2024-11-24 00:24:00,653 INFO L226 Difference]: Without dead ends: 96 [2024-11-24 00:24:00,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:00,654 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 31 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:00,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 135 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:24:00,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-24 00:24:00,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 95. [2024-11-24 00:24:00,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 63 states have (on average 1.1428571428571428) internal successors, (72), 66 states have internal predecessors, (72), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:24:00,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 126 transitions. [2024-11-24 00:24:00,704 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 126 transitions. Word has length 101 [2024-11-24 00:24:00,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:00,704 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 126 transitions. [2024-11-24 00:24:00,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:24:00,705 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 126 transitions. [2024-11-24 00:24:00,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-24 00:24:00,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:00,707 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:00,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:24:00,707 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:00,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:00,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1184021979, now seen corresponding path program 1 times [2024-11-24 00:24:00,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:00,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672682823] [2024-11-24 00:24:00,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:00,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:00,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:02,187 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:24:02,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:02,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672682823] [2024-11-24 00:24:02,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672682823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:02,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:02,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:24:02,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146811607] [2024-11-24 00:24:02,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:02,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:24:02,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:02,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:24:02,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:02,189 INFO L87 Difference]: Start difference. First operand 95 states and 126 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:24:02,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:02,280 INFO L93 Difference]: Finished difference Result 171 states and 228 transitions. [2024-11-24 00:24:02,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:24:02,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 102 [2024-11-24 00:24:02,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:02,282 INFO L225 Difference]: With dead ends: 171 [2024-11-24 00:24:02,283 INFO L226 Difference]: Without dead ends: 83 [2024-11-24 00:24:02,283 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:24:02,285 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 30 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:02,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 105 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:24:02,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-24 00:24:02,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 65. [2024-11-24 00:24:02,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 44 states have internal predecessors, (49), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:24:02,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 85 transitions. [2024-11-24 00:24:02,316 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 85 transitions. Word has length 102 [2024-11-24 00:24:02,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:02,316 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 85 transitions. [2024-11-24 00:24:02,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:24:02,318 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 85 transitions. [2024-11-24 00:24:02,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-24 00:24:02,319 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:02,319 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:02,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:24:02,320 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:02,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:02,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1373297224, now seen corresponding path program 1 times [2024-11-24 00:24:02,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:02,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421471483] [2024-11-24 00:24:02,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:02,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:24:02,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1008399594] [2024-11-24 00:24:02,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:02,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:24:02,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:24:02,363 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:24:02,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:24:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:24:02,456 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:24:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:24:02,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:24:02,538 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:24:02,539 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:24:02,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:24:02,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-24 00:24:02,745 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-24 00:24:02,793 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:24:02,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:24:02 BoogieIcfgContainer [2024-11-24 00:24:02,796 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:24:02,801 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:24:02,801 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:24:02,801 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:24:02,801 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:23:53" (3/4) ... [2024-11-24 00:24:02,803 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:24:02,804 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:24:02,804 INFO L158 Benchmark]: Toolchain (without parser) took 10323.17ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 92.3MB in the beginning and 105.6MB in the end (delta: -13.4MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2024-11-24 00:24:02,804 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:24:02,806 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.57ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 80.1MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:24:02,806 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.00ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 77.9MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:24:02,806 INFO L158 Benchmark]: Boogie Preprocessor took 67.71ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 75.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:24:02,806 INFO L158 Benchmark]: RCFGBuilder took 513.63ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 60.3MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:24:02,807 INFO L158 Benchmark]: TraceAbstraction took 9356.94ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 59.6MB in the beginning and 105.7MB in the end (delta: -46.0MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2024-11-24 00:24:02,807 INFO L158 Benchmark]: Witness Printer took 2.92ms. Allocated memory is still 176.2MB. Free memory was 105.7MB in the beginning and 105.6MB in the end (delta: 33.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:24:02,811 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.57ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 80.1MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.00ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 77.9MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.71ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 75.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 513.63ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 60.3MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9356.94ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 59.6MB in the beginning and 105.7MB in the end (delta: -46.0MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Witness Printer took 2.92ms. Allocated memory is still 176.2MB. Free memory was 105.7MB in the beginning and 105.6MB in the end (delta: 33.1kB). 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 shiftRight at line 71, overapproximation of shiftRight at line 33. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] unsigned char var_1_2 = 1; [L24] unsigned char var_1_3 = 128; [L25] unsigned char var_1_4 = 32; [L26] signed long int var_1_5 = 0; [L27] signed long int var_1_6 = 4; [L28] unsigned char var_1_7 = 16; [L29] unsigned char var_1_8 = 10; VAL [isInitial=0, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L75] isInitial = 1 [L76] FCALL initially() [L78] FCALL updateLastVariables() [L79] CALL updateVariables() [L44] var_1_2 = __VERIFIER_nondet_uchar() [L45] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=128, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=128, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L45] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_1=0, var_1_3=128, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L46] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_3=128, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_3=128, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L46] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_3=128, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L47] var_1_3 = __VERIFIER_nondet_uchar() [L48] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L48] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L49] CALL assume_abort_if_not(var_1_3 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L49] RET assume_abort_if_not(var_1_3 <= 255) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L50] var_1_4 = __VERIFIER_nondet_uchar() [L51] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L51] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L52] CALL assume_abort_if_not(var_1_4 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L52] RET assume_abort_if_not(var_1_4 <= 255) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L53] CALL assume_abort_if_not(var_1_4 != 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L53] RET assume_abort_if_not(var_1_4 != 0) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L54] var_1_5 = __VERIFIER_nondet_long() [L55] CALL assume_abort_if_not(var_1_5 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=4, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=4, var_1_7=16, var_1_8=10] [L55] RET assume_abort_if_not(var_1_5 >= -2147483648) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=4, var_1_7=16, var_1_8=10] [L56] CALL assume_abort_if_not(var_1_5 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=4, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=4, var_1_7=16, var_1_8=10] [L56] RET assume_abort_if_not(var_1_5 <= 2147483647) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=4, var_1_7=16, var_1_8=10] [L57] var_1_6 = __VERIFIER_nondet_long() [L58] CALL assume_abort_if_not(var_1_6 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=16, var_1_8=10] [L58] RET assume_abort_if_not(var_1_6 >= -2147483648) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=16, var_1_8=10] [L59] CALL assume_abort_if_not(var_1_6 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=16, var_1_8=10] [L59] RET assume_abort_if_not(var_1_6 <= 2147483647) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=16, var_1_8=10] [L60] CALL assume_abort_if_not(var_1_6 != 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=16, var_1_8=10] [L60] RET assume_abort_if_not(var_1_6 != 0) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=16, var_1_8=10] [L61] var_1_7 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_8=10] [L62] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_8=10] [L63] CALL assume_abort_if_not(var_1_7 <= 32) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=1, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=1, var_1_8=10] [L63] RET assume_abort_if_not(var_1_7 <= 32) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=1, var_1_8=10] [L64] var_1_8 = __VERIFIER_nondet_uchar() [L65] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=1] [L65] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=1] [L66] CALL assume_abort_if_not(var_1_8 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=1, var_1_8=-254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=1, var_1_8=-254] [L66] RET assume_abort_if_not(var_1_8 <= 254) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=1, var_1_8=-254] [L79] RET updateVariables() [L80] CALL step() [L33] EXPR (var_1_5 / var_1_6) >> var_1_7 VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=1, var_1_8=-254] [L33] COND TRUE (var_1_3 / var_1_4) >= ((var_1_5 / var_1_6) >> var_1_7) [L34] var_1_1 = ((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8))) VAL [isInitial=1, var_1_1=1, var_1_2=0, var_1_3=-255, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=1, var_1_8=-254] [L80] RET step() [L81] CALL, EXPR property() [L71] EXPR (var_1_5 / var_1_6) >> var_1_7 VAL [isInitial=1, var_1_1=1, var_1_2=0, var_1_3=-255, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=1, var_1_8=-254] [L71-L72] return ((var_1_3 / var_1_4) >= ((var_1_5 / var_1_6) >> var_1_7)) ? (var_1_1 == ((unsigned char) ((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8))))) : (var_1_2 ? (var_1_1 == ((unsigned char) var_1_8)) : (var_1_1 == ((unsigned char) var_1_8))) ; [L81] RET, EXPR property() [L81] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=1, var_1_2=0, var_1_3=-255, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=1, var_1_8=-254] [L19] reach_error() VAL [isInitial=1, var_1_1=1, var_1_2=0, var_1_3=-255, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=1, var_1_8=-254] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.2s, OverallIterations: 6, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 98 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 1048 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 690 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 276 IncrementalHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 358 mSDtfsCounter, 276 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=4, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 35 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 808 NumberOfCodeBlocks, 808 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 598 ConstructedInterpolants, 0 QuantifiedInterpolants, 1786 SizeOfPredicates, 0 NumberOfNonLiveVariables, 220 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 2850/2880 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 00:24:02,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-29.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC --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 7e3b862ba9a2a4c1c92e3db12119deeccd82c1339b8fd16f8352680fc1302c9d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:24:05,607 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:24:05,770 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 00:24:05,784 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:24:05,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:24:05,826 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:24:05,827 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:24:05,827 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:24:05,827 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:24:05,828 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:24:05,828 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:24:05,828 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:24:05,828 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:24:05,828 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:24:05,830 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:24:05,830 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:24:05,830 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:24:05,830 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:24:05,831 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:24:05,831 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:24:05,831 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:24:05,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:24:05,832 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:24:05,832 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:24:05,832 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:24:05,832 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:24:05,832 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:24:05,832 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:24:05,833 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:24:05,833 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:24:05,833 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:24:05,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:24:05,833 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:24:05,833 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:24:05,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:24:05,834 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:24:05,834 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:24:05,834 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:24:05,834 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:24:05,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:24:05,834 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:24:05,834 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:24:05,834 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:24:05,835 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:24:05,835 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:24:05,835 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:24:05,835 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:24:05,836 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:24:05,836 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:24:05,836 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:24:05,836 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC 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 -> 7e3b862ba9a2a4c1c92e3db12119deeccd82c1339b8fd16f8352680fc1302c9d [2024-11-24 00:24:06,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:24:06,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:24:06,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:24:06,210 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:24:06,211 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:24:06,212 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-29.i [2024-11-24 00:24:09,429 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/data/fa5d28141/85835045dbd94ab99c7a0f370c7922f0/FLAG563891a5a [2024-11-24 00:24:09,685 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:24:09,686 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-29.i [2024-11-24 00:24:09,693 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/data/fa5d28141/85835045dbd94ab99c7a0f370c7922f0/FLAG563891a5a [2024-11-24 00:24:09,718 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/data/fa5d28141/85835045dbd94ab99c7a0f370c7922f0 [2024-11-24 00:24:09,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:24:09,722 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:24:09,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:24:09,724 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:24:09,729 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:24:09,731 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:24:09" (1/1) ... [2024-11-24 00:24:09,734 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@230fc085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:09, skipping insertion in model container [2024-11-24 00:24:09,735 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:24:09" (1/1) ... [2024-11-24 00:24:09,755 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:24:09,953 WARN L250 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_92780b6c-c875-413b-b157-c30999be6bf9/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-29.i[915,928] [2024-11-24 00:24:10,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:24:10,043 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:24:10,059 WARN L250 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_92780b6c-c875-413b-b157-c30999be6bf9/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-29.i[915,928] [2024-11-24 00:24:10,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:24:10,110 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:24:10,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:10 WrapperNode [2024-11-24 00:24:10,112 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:24:10,113 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:24:10,114 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:24:10,114 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:24:10,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:10" (1/1) ... [2024-11-24 00:24:10,143 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:10" (1/1) ... [2024-11-24 00:24:10,168 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 83 [2024-11-24 00:24:10,169 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:24:10,170 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:24:10,170 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:24:10,170 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:24:10,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:10" (1/1) ... [2024-11-24 00:24:10,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:10" (1/1) ... [2024-11-24 00:24:10,185 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:10" (1/1) ... [2024-11-24 00:24:10,200 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]. [2024-11-24 00:24:10,200 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:10" (1/1) ... [2024-11-24 00:24:10,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:10" (1/1) ... [2024-11-24 00:24:10,214 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:10" (1/1) ... [2024-11-24 00:24:10,215 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:10" (1/1) ... [2024-11-24 00:24:10,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:10" (1/1) ... [2024-11-24 00:24:10,225 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:10" (1/1) ... [2024-11-24 00:24:10,226 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:10" (1/1) ... [2024-11-24 00:24:10,229 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:24:10,230 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:24:10,230 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:24:10,230 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:24:10,231 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:10" (1/1) ... [2024-11-24 00:24:10,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:24:10,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:24:10,270 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:24:10,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:24:10,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:24:10,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:24:10,303 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:24:10,303 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:24:10,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:24:10,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:24:10,377 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:24:10,379 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:24:10,801 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-24 00:24:10,801 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:24:10,818 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:24:10,820 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:24:10,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:24:10 BoogieIcfgContainer [2024-11-24 00:24:10,821 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:24:10,824 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:24:10,825 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:24:10,831 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:24:10,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:24:09" (1/3) ... [2024-11-24 00:24:10,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4520fb56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:24:10, skipping insertion in model container [2024-11-24 00:24:10,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:24:10" (2/3) ... [2024-11-24 00:24:10,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4520fb56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:24:10, skipping insertion in model container [2024-11-24 00:24:10,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:24:10" (3/3) ... [2024-11-24 00:24:10,835 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-29.i [2024-11-24 00:24:10,854 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:24:10,857 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-29.i that has 2 procedures, 44 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:24:10,937 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:24:10,953 INFO L333 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, 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;@590ce689, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:24:10,953 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:24:10,958 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:24:10,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:24:10,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:10,971 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:10,971 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:10,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:10,979 INFO L85 PathProgramCache]: Analyzing trace with hash 229598373, now seen corresponding path program 1 times [2024-11-24 00:24:10,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:24:10,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [268034415] [2024-11-24 00:24:10,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:10,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:24:10,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:24:10,998 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:24:11,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:24:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:11,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:24:11,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:24:11,293 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-24 00:24:11,293 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:24:11,294 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:24:11,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268034415] [2024-11-24 00:24:11,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268034415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:11,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:11,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:24:11,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141213015] [2024-11-24 00:24:11,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:11,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:24:11,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:24:11,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:24:11,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:24:11,333 INFO L87 Difference]: Start difference. First operand has 44 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 00:24:11,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:11,371 INFO L93 Difference]: Finished difference Result 81 states and 138 transitions. [2024-11-24 00:24:11,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:24:11,373 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 97 [2024-11-24 00:24:11,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:11,383 INFO L225 Difference]: With dead ends: 81 [2024-11-24 00:24:11,383 INFO L226 Difference]: Without dead ends: 40 [2024-11-24 00:24:11,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:24:11,392 INFO L435 NwaCegarLoop]: 57 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, 57 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 [2024-11-24 00:24:11,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:24:11,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-24 00:24:11,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-24 00:24:11,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:24:11,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 57 transitions. [2024-11-24 00:24:11,494 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 57 transitions. Word has length 97 [2024-11-24 00:24:11,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:11,495 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 57 transitions. [2024-11-24 00:24:11,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 00:24:11,495 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 57 transitions. [2024-11-24 00:24:11,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:24:11,510 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:11,511 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:11,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:24:11,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:24:11,712 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:11,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:11,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1601082203, now seen corresponding path program 1 times [2024-11-24 00:24:11,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:24:11,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1724247927] [2024-11-24 00:24:11,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:11,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:24:11,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:24:11,729 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:24:11,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:24:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:11,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-24 00:24:11,964 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:24:14,667 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 24 proven. 21 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-24 00:24:14,668 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:24:16,686 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:24:16,687 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:24:16,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724247927] [2024-11-24 00:24:16,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724247927] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:24:16,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:24:16,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-24 00:24:16,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071037396] [2024-11-24 00:24:16,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:16,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:24:16,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:24:16,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:24:16,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:24:16,692 INFO L87 Difference]: Start difference. First operand 40 states and 57 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:24:18,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:18,880 INFO L93 Difference]: Finished difference Result 55 states and 73 transitions. [2024-11-24 00:24:18,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:24:18,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 97 [2024-11-24 00:24:18,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:18,889 INFO L225 Difference]: With dead ends: 55 [2024-11-24 00:24:18,889 INFO L226 Difference]: Without dead ends: 53 [2024-11-24 00:24:18,889 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:24:18,891 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 13 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:18,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 221 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:24:18,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-24 00:24:18,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2024-11-24 00:24:18,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 31 states have (on average 1.096774193548387) internal successors, (34), 32 states have internal predecessors, (34), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:24:18,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 70 transitions. [2024-11-24 00:24:18,910 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 70 transitions. Word has length 97 [2024-11-24 00:24:18,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:18,912 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 70 transitions. [2024-11-24 00:24:18,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:24:18,913 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 70 transitions. [2024-11-24 00:24:18,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-24 00:24:18,916 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:18,916 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:18,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:24:19,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:24:19,117 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:19,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:19,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1961408050, now seen corresponding path program 1 times [2024-11-24 00:24:19,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:24:19,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [171255046] [2024-11-24 00:24:19,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:19,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:24:19,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:24:19,122 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:24:19,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:24:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:19,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 00:24:19,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:24:21,356 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:24:21,356 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:24:21,357 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:24:21,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171255046] [2024-11-24 00:24:21,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171255046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:21,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:21,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:24:21,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566273416] [2024-11-24 00:24:21,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:21,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:24:21,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:24:21,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:24:21,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:24:21,360 INFO L87 Difference]: Start difference. First operand 52 states and 70 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:24:23,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:23,603 INFO L93 Difference]: Finished difference Result 61 states and 80 transitions. [2024-11-24 00:24:23,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:24:23,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 98 [2024-11-24 00:24:23,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:23,610 INFO L225 Difference]: With dead ends: 61 [2024-11-24 00:24:23,610 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 00:24:23,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:24:23,612 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 13 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:23,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 253 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 00:24:23,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 00:24:23,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 00:24:23,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:23,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 00:24:23,614 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 98 [2024-11-24 00:24:23,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:23,614 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 00:24:23,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:24:23,615 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 00:24:23,615 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 00:24:23,617 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:24:23,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 00:24:23,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:24:23,821 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-24 00:24:23,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 00:24:24,383 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:24:24,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:24:24 BoogieIcfgContainer [2024-11-24 00:24:24,398 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:24:24,399 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:24:24,399 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:24:24,399 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:24:24,405 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:24:10" (3/4) ... [2024-11-24 00:24:24,407 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 00:24:24,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-24 00:24:24,418 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-24 00:24:24,420 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-24 00:24:24,420 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-24 00:24:24,420 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 00:24:24,518 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 00:24:24,518 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 00:24:24,518 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:24:24,519 INFO L158 Benchmark]: Toolchain (without parser) took 14797.45ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 77.7MB in the end (delta: 15.6MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2024-11-24 00:24:24,519 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:24:24,520 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.99ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 81.0MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:24:24,520 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.77ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.5MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:24:24,520 INFO L158 Benchmark]: Boogie Preprocessor took 59.24ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 77.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:24:24,521 INFO L158 Benchmark]: RCFGBuilder took 591.71ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 65.0MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:24:24,521 INFO L158 Benchmark]: TraceAbstraction took 13573.61ms. Allocated memory is still 117.4MB. Free memory was 64.4MB in the beginning and 83.4MB in the end (delta: -19.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:24:24,522 INFO L158 Benchmark]: Witness Printer took 119.56ms. Allocated memory is still 117.4MB. Free memory was 83.4MB in the beginning and 77.7MB in the end (delta: 5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:24:24,524 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.99ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 81.0MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.77ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.5MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.24ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 77.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 591.71ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 65.0MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 13573.61ms. Allocated memory is still 117.4MB. Free memory was 64.4MB in the beginning and 83.4MB in the end (delta: -19.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 119.56ms. Allocated memory is still 117.4MB. Free memory was 83.4MB in the beginning and 77.7MB in the end (delta: 5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.9s, OverallIterations: 3, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 531 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 344 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 187 mSDtfsCounter, 96 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 389 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=2, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 385 ConstructedInterpolants, 0 QuantifiedInterpolants, 531 SizeOfPredicates, 19 NumberOfNonLiveVariables, 460 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 1899/1920 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-24 00:24:24,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92780b6c-c875-413b-b157-c30999be6bf9/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE